СПИСОК патентов США - подгруппа МПК16 H04M9/00
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№ п/п | Номер патента | Название патента | |||
2017 | |||||
1 | 9571669 | Reverse power feeding system and method | |||
2 | 9571661 | Controller for a door entry system | |||
3 | 9565284 | Systems and methods for automatically connecting a user of a hands-free intercommunication system | |||
4 | 9559967 | Policy implementation over LMR and IP networks | |||
5 | 9548608 | Gas tube impulse protection | |||
6 | 9538379 | Method for authentication between smart car and smart home and telematics service center therefor | |||
2016 | |||||
7 | 9479881 | Wireless communication apparatus, wireless communication system, and data processing method | |||
8 | 9479627 | Desktop speakerphone | |||
9 | 9473602 | Portable electronic device | |||
10 | 9454889 | Security and public safety application for a mobile device | |||
11 | 9437210 | Audio signal processing | |||
12 | 9426280 | Network-based timed ring suppression | |||
13 | 9426031 | Device migration | |||
14 | 9413539 | Analog front-end transmitter and a connection method of an X-digital subscriber line having a pre-distortion mechanism | |||
15 | 9369841 | Providing geographic locations of a user's wireless device | |||
16 | 9369587 | System and method for software turret phone capabilities | |||
17 | 9350409 | Mobile terminal and inner frame provided therein | |||
18 | 9344564 | MSC logic for SIP invite with IMRN | |||
19 | 9319537 | Load balancing reverse power supply | |||
20 | 9312967 | Communication device | |||
21 | 9300788 | Apparatus and control method for the same | |||
22 | 9282029 | System and method for transmitting an emergency message over an integrated wireless network | |||
23 | 9261915 | Electronic apparatus, light-transmissive cover plate, and portable device | |||
24 | 9254023 | Protective cover for portable eletronic device | |||
25 | 9252838 | Alternative techniques for processing wireless communication backhaul | |||
26 | 9232035 | Electronic device for preventing leakage of received sound | |||
2015 | |||||
27 | 9179011 | Telephone Communication System and Method of Using | |||
28 | 9179010 | Remote powered node | |||
29 | 9178773 | Computer-programmed telephone-enabled devices for processing and managing numerous simultaneous voice conversations conducted by an individual over a computer network and computer methods of implementing thereof | |||
30 | 9178478 | Method and apparatus for providing privacy for telephone conversations | |||
31 | 9167333 | Headset dictation mode | |||
32 | 9143875 | Determination of ambient sound processed audio information | |||
33 | 9131068 | Systems and methods for automatically connecting a user of a hands-free intercommunication system | |||
34 | 9128489 | Inductively coupled distributed control system | |||
35 | 9124970 | System and method for using a headset jack to control electronic device functions | |||
36 | 9124708 | Far-end sound quality indication for telephone devices | |||
37 | 9100505 | Methods, systems and products for providing modem functions | |||
38 | 9094954 | Mobile terminal and controlling method thereof | |||
39 | 9094746 | Block resistant microphone port design | |||
40 | 9060074 | Method and system for communication | |||
41 | 9058819 | System and method for reducing uplink noise | |||
42 | 9055156 | Auxiliary speaker and microphone system for cellular phone | |||
43 | 9044689 | Case for electronic device with surface for attaching building elements | |||
44 | 9031226 | Multi-stream-multipoint-jack audio streaming | |||
45 | 9001997 | Telephone with handsfree function | |||
46 | 8995649 | System and method for multiple headset integration | |||
47 | 8989693 | Power line network apparatus, system and method | |||
48 | 8983507 | Private packet network backbone exchange with variable call termination location capability | |||
49 | 8983059 | Telephone interface | |||
50 | 8977230 | Interactive personal surveillance and security (IPSS) systems and methods | |||
51 | 8976957 | Headset microphone boom assembly | |||
52 | 8971884 | Rejection notification to a universal integrated circuit card | |||
53 | 8971524 | Communications systems and methods using wireline adapters | |||
54 | 8964970 | Phone | |||
55 | 8964969 | Telecommunciations filter device | |||
56 | 8964968 | System, voice cable assembly, and method for voice communication | |||
57 | 8964966 | Multi-microphone system to support bandpass filtering for analog-to-digital conversions at different data rates | |||
58 | 8963695 | Haptic alert device having a linear vibrator | |||
59 | 8958545 | Crosstalk reducing conductor and contact configuration in a communication system | |||
60 | 8954123 | Connector cover and mobile type electronic device | |||
61 | 8953780 | Portable electronic device | |||
62 | 8953778 | Real-time intelligent mute interactive features | |||
63 | 8949049 | System and method for detecting a device requiring power | |||
64 | 8934623 | Housing for electronic device | |||
65 | 8929398 | Data frame for PLC having destination address in the PHY header | |||
2014 | |||||
66 | 8923797 | Method of establishing a communications connection from a deactivated telematics unit on a motor vehicle | |||
67 | 8923796 | Expedited call setup | |||
68 | 8923530 | Speakerphone feedback attenuation | |||
69 | 8918197 | Audio communication networks | |||
70 | 8908858 | Rotating mechanism and electronic device with same | |||
71 | 8902714 | Smart-watch including flip up display | |||
72 | 8892232 | Social network with enhanced audio communications for the hearing impaired | |||
73 | 8891800 | Earbud charging case for mobile device | |||
74 | 8891755 | Telephone set and method of controlling off-hook/on-hook state of the telephone set | |||
75 | 8890719 | Reduced keypad for multi-tap input | |||
76 | 8879711 | Method and apparatus for network maintenance and supervision of a controlled on-board audio portion | |||
77 | 8873743 | Tapered capsense structure | |||
78 | 8867737 | System and method for providing line power to a digital telephone | |||
79 | 8867736 | Device for controlling a supply voltage for a terminal | |||
80 | 8861687 | Integrated hybird circuit applied to a digital subscriber loop and setting method thereof | |||
81 | 8848901 | Speech canceler-enhancer system for use in call-center applications | |||
82 | 8843099 | Method for providing extension list selection | |||
83 | 8842822 | System and method for optimizing termination impedance for an analog telephone line | |||
84 | 8837713 | Systems, methods, and apparatus for enabling audio transmission within a communications session | |||
85 | 8831212 | Guiding module and electronic device using the same | |||
86 | 8825928 | Facilitating and authenticating transactions through the use of a dongle interfacing a security card and a data processing apparatus | |||
87 | 8824669 | Handheld electronic device with keyboard | |||
88 | 8824668 | Communication system comprising a telephone and a listening device, and transmission method | |||
89 | 8823499 | Enhanced power supply unit for powerline networks | |||
90 | 8817971 | Conference device | |||
91 | 8811933 | Power line communication methods and devices | |||
92 | 8811605 | Intelligent patching systems and components thereof | |||
93 | 8811604 | Sliding mechanism and slider electronic apparatus therewith | |||
94 | 8811599 | Systems, circuits and methods for dual transformer duplexing | |||
95 | 8787562 | Method and system for providing DC power on local telephone lines | |||
96 | 8787557 | Method and apparatus for non-disruptive telecommunication loop condition determination | |||
97 | 8774878 | Ultra mobile communicating computer with finger holes to ease grip | |||
98 | 8767952 | Method and system for utilizing a single connection for efficient delivery of power and multimedia information | |||
99 | 8761387 | Analog transmit crosstalk canceller | |||
100 | 8755505 | Communication wall panel, nursing care system having communication wall panel, and conference system having communication wall panel | |||
101 | 8755462 | Frequency offset estimator for upstream cable signals | |||
102 | 8744538 | Fully flat slider | |||
103 | 8737951 | Interactive personal surveillance and security (IPSS) systems and methods | |||
104 | 8737602 | Passive, non-amplified audio splitter for use with computer telephony integration | |||
105 | 8737051 | Display seal for electronic device | |||
106 | 8731907 | Method and test signal for measuring speech intelligibility | |||
107 | 8731225 | Wireless communication headset with wired and wireless modes | |||
108 | 8731186 | Microphone disruption apparatus and method | |||
109 | 8731185 | Single ended estimation of far-end crosstalk in a digital subscriber line | |||
110 | 8712487 | Sliding-type portable communication device | |||
111 | 8693677 | Techniques for updating filter coefficients of an adaptive filter | |||
112 | 8687798 | Microphone line based detection of headset plug removal | |||
113 | 8687796 | Method and electronic device for improving communication quality based on ambient noise sensing | |||
114 | 8666357 | System and method for transmitting an emergency message over an integrated wireless network | |||
115 | 8666355 | Network event detection | |||
116 | 8666061 | Mobile device | |||
117 | 8660520 | Emergency notification system for devices within a targeted boundary | |||
118 | 8660259 | Automatic permutation setup and calibration of a headset interface unit | |||
119 | 8660249 | System and method for remote home monitoring and intercom communication | |||
120 | 8649507 | Mobile communications device enclosure | |||
121 | 8644791 | Communications module apparatus, integrated circuit and method of communicating data | |||
122 | 8644497 | Method and apparatus for adding a communication connection to a vectored group | |||
123 | 8644493 | Splitter wall plates for digital subscriber line (DSL) communication systems and methods to use the same | |||
124 | 8639300 | Method and apparatus for maintaining transmit audio in a half duplex system | |||
125 | 8634884 | Sliding-type portable terminal | |||
126 | 8634548 | Free-stop hinge apparatus for folding-type mobile phone | |||
127 | 8634547 | Echo canceller operative in response to fluctuation on echo path | |||
128 | 8630726 | System and method for detecting three-way call circumvention attempts | |||
129 | 8630408 | Folder type terminal cover device | |||
130 | 8630405 | Echo removing apparatus | |||
131 | 8626179 | Multiple subscription resource access control | |||
132 | 8626111 | Mobile device situational awareness protocol | |||
2013 | |||||
133 | 8621250 | Variable power over Ethernet based on link delay measurement | |||
134 | 8615077 | Portable electronic device | |||
135 | 8615076 | Wireless digital subscriber line device having reduced RF interference | |||
136 | 8611528 | Outlet add-on module | |||
137 | 8606177 | Apparatus and method for controlling human body contact of ground electrode, and human body communication system using the same | |||
138 | 8600094 | Mounting panel with elongated tongue | |||
139 | 8594753 | Mobile terminal | |||
140 | 8594320 | Hybrid echo and noise suppression method and device in a multi-channel audio signal | |||
141 | 8588405 | Method of communication between a communication server and a terminal | |||
142 | 8588403 | Echo canceling arrangement | |||
143 | 8582755 | Headset with a retractable speaker portion | |||
144 | 8571205 | Dual-purpose hardware aperture | |||
145 | 8565419 | Keyboard arrangement and mobile communication device incorporating same | |||
146 | 8565417 | Outlet add-on module | |||
147 | 8559996 | Power control subsystem with a plurality of current limit values | |||
148 | 8559914 | Interactive personal surveillance and security (IPSS) system | |||
149 | 8559623 | Double sliding stability space-saving slide cover lifting structure | |||
150 | 8559621 | Donned and doffed headset state detection | |||
151 | 8559619 | Methods and devices for reducing sidetone noise levels | |||
152 | 8553874 | Display cover and case for a communication device | |||
153 | 8548418 | Methods and devices for distributing ringtone | |||
154 | 8548159 | Waterproof structure and electronic equipment | |||
155 | 8548158 | Network based timed ring suppression | |||
156 | 8542819 | Outlet add-on module | |||
157 | 8542817 | Speaker volume control for voice communication device | |||
158 | 8539255 | Variable power over ethernet based on link delay measurement | |||
159 | 8538010 | Faceplate assembly for wall mounting a phone | |||
160 | 8538009 | Donned and doffed headset state detection | |||
161 | 8532721 | Portable electronic device having sliding display providing event notification | |||
162 | 8532696 | Mobile terminal having flexible printed circuit board | |||
163 | 8532284 | Telephone | |||
164 | 8532096 | Local exchange routing guide information maintenance system and method | |||
165 | 8526600 | Antihelix-conforming ear-mount for personal audio-set | |||
166 | 8520836 | Projection headset | |||
167 | 8520835 | Method and apparatus for providing power to a network interface device via telephone lines | |||
168 | 8515383 | Utility powered communications gateway | |||
169 | 8515382 | Power line communication methods and devices | |||
170 | 8515114 | Wireless system for hearing communication devices providing wireless stereo reception modes | |||
171 | 8515056 | Portable terminal with built-in antenna | |||
172 | 8509423 | Synchronous pull device for slide cover mechanism | |||
173 | 8503659 | Method and apparatus for ringback tone replacement with downloaded audio files | |||
174 | 8498408 | Crosstalk estimation and power setting based on interpolation in a multi-channel communication system | |||
175 | 8498406 | Integrated keypad system | |||
176 | 8494153 | Adaptive mute status reminder | |||
177 | 8489151 | Integrated and detachable wireless headset element for cellular/mobile/portable phones and audio playback devices | |||
178 | 8488778 | Electronic device with hinge mechanism | |||
179 | 8488777 | Microphone coupler system for a communication device | |||
180 | 8483776 | Acoustic path for a wireless communications device | |||
181 | 8477931 | Case for electronic device with surface for attaching building elements | |||
182 | 8477930 | Case assembly for electronic appliance | |||
183 | 8477929 | Method, device and system for line management | |||
184 | 8477928 | Crosstalk reducing conductor and contact configuration in a communication system | |||
185 | 8472614 | Attenuation and termination circuit using impedance synthesis | |||
186 | 8467523 | Method and device for cancelling interference between a signal carried by a carrier power line and a signal carried by a telephone line | |||
187 | 8463335 | Battery cover assembly for portable electronic device | |||
188 | 8462938 | Power source circuit for use in digital subscriber line modem | |||
189 | 8462937 | Power supply with digital control loop | |||
190 | 8457291 | Universal target button | |||
191 | 8452003 | Power saving technique for telephony access networks | |||
192 | 8452001 | Class A-B line driver for gigabit Ethernet | |||
193 | 8447030 | Dual mode communication device and method for managing voice communication | |||
194 | 8446897 | System and method for providing multimedia tone/announcement over wireless network | |||
195 | 8442213 | Method and apparatus for shared positive protection | |||
196 | 8437812 | Headset with auxiliary input(s) for cell phone and/or other devices | |||
197 | 8437468 | Methods, systems and products for providing modem functions | |||
198 | 8437467 | Method and apparatus for non-disruptive telecommunication loop condition determination | |||
199 | 8433040 | Telephone switchboard and electronic device for providing power to load having different resistance values at different operation modes | |||
200 | 8428250 | Pivot braking structure of relative sliding device | |||
201 | 8428249 | Automatic slide cover opening/closing device | |||
202 | 8428248 | System and method for mirroring power over ethernet registers in a physical layer device over a single isolation boundary | |||
203 | 8422666 | Wall mount telephone and wall mount telephone assembly | |||
204 | 8422665 | Telephone device for detecting status of a handset with light detection | |||
205 | 8422662 | Splitter wall plates for digital subscriber line (DSL) communication systems and methods to use the same | |||
206 | 8422660 | Communication system having common ground mechanism | |||
207 | 8416945 | Adaptive duplexing for amplified telephone | |||
208 | 8411849 | Personal electronic device storage apparatus and associated method | |||
209 | 8411848 | Telephone interface circuit for providing over-current and over-voltage protection | |||
210 | 8406420 | Magnetic-push slide cover driving device | |||
211 | 8406419 | Slide hinge apparatus | |||
212 | 8406418 | Headset with a 360 degrees rotatable microphone boom and function selector | |||
213 | 8406417 | Overvoltage protection with power sink | |||
214 | 8406414 | Method and apparatus for dynamically scheduling ringing signals | |||
215 | 8401513 | Proximity sensor, in particular microphone for reception of sound signals in the human audible sound range, with ultrasonic proximity estimation | |||
216 | 8401175 | Internet protocol telephone system | |||
217 | 8401174 | System and method for optimizing termination impedance for an analog telephone line | |||
218 | 8396520 | Portable terminal having a slide module with a tilting unit | |||
219 | 8396207 | Sliding mechanism | |||
220 | 8391470 | Device, method and system for estimating the termination to a wired transmission-line based on determination of characteristic impedance | |||
221 | 8385976 | Multi-SIM cellular telephone | |||
222 | 8385538 | Method, system, and apparatus for a differential transformer-free hybrid circuit | |||
223 | 8380262 | Slide phone | |||
224 | 8379840 | Push-push slide mechanism | |||
225 | 8379839 | Method and apparatus for controlling ringing voltage | |||
226 | 8379488 | Smart-watch including flip up display | |||
227 | 8378746 | Voltage-mode line driving circuit having adaptive impedance matching | |||
228 | 8374337 | Slide unit mechanism | |||
229 | 8374336 | Portable terminal | |||
230 | 8373975 | Protective cover, key assembly using the same and portable electronic device using the key assembly | |||
231 | 8370140 | Method of filtering non-steady lateral noise for a multi-microphone audio device, in particular a "hands-free" telephone device for a motor vehicle | |||
232 | 8363874 | Receiver | |||
233 | 8363824 | Portable electronic device | |||
234 | 8363823 | Two microphone uplink communication and stereo audio playback on three wire headset assembly | |||
235 | 8363822 | Method and apparatus for battery switching during ringing | |||
236 | 8358777 | Wireless telephone having support with built-in antenna | |||
237 | 8355515 | Gaming headset and charging method | |||
238 | 8351597 | Electronic device, echo canceling method thereof, non-transitory computer readable medium, circuit substrate, and portable telephone terminal device | |||
239 | 8351583 | Telecommunication system and method of synchronization | |||
240 | 8346308 | Communication device | |||
241 | 8346207 | Fault location and control system for distribution lines | |||
242 | 8346206 | Customizable media feedback software package and methods of generating and installing the package | |||
243 | 8345885 | Sound signal adjustment apparatus and method, and telephone | |||
244 | 8345859 | Method and apparatus for DSL line card power management | |||
245 | 8345846 | Gate intercom with a wireless telephony interface | |||
246 | 8345845 | Public communications intercom system | |||
2012 | |||||
247 | 8340625 | Alternative techniques for processing wireless communication backhaul | |||
248 | 8340279 | Interference cancellation system | |||
249 | 8335312 | Donned and doffed headset state detection | |||
250 | 8331554 | Method for pivotably adjusting a first portion of a device in two directions relative to a second portion of the device | |||
251 | 8326382 | Slider electronic device | |||
252 | 8326381 | Cover plate assembly and method of operation of same | |||
253 | 8326377 | Input device and mobile device having the same | |||
254 | 8325912 | Handheld device having linkage supporter | |||
255 | 8325908 | Method and apparatus for detecting ring trip precursors | |||
256 | 8325728 | Dynamic data routing in a utility communications network | |||
257 | 8320555 | Method and apparatus for determining a change in network-generated crosstalk levels caused by a multi-line phone | |||
258 | 8320552 | Delay estimator | |||
259 | 8320318 | Power ramping for RACH | |||
260 | 8315378 | Hybrid circuit without inductors | |||
261 | 8311210 | Isolated high gain line amplifier circuit | |||
262 | 8301188 | Electronic devices including substrate mounted acoustic actuators and related methods and mobile radiotelephones | |||
263 | 8300803 | Cooperative MIMO for alien noise cancellation (COMAC) for upstream VDSL systems | |||
264 | 8300802 | Adaptive filter for use in echo reduction | |||
265 | 8290466 | Communication system, communication device, communication terminal, and communication setting method | |||
266 | 8290144 | System and method for collecting power from a telephone line | |||
267 | 8290133 | System and method for remote home monitoring and intercom communication | |||
268 | 8285349 | Sliding portable terminal | |||
269 | 8284928 | Guide device for sliding unit in mobile terminal | |||
270 | 8284926 | Enterprise-distributed noise management | |||
271 | 8280461 | Electronic device including a function button operable by a stylus or similar device | |||
272 | 8280038 | Microphone line based detection of headset plug removal | |||
273 | 8280035 | IP telephone system | |||
274 | 8279716 | Smart-watch including flip up display | |||
275 | 8279146 | Liquid crystal display device and mobile communication terminal having the same | |||
276 | 8275121 | Portable communication device having a combined slider and flip hinge assembly | |||
277 | 8275094 | Method and devices for providing wetting current | |||
278 | 8270934 | Configuring network settings for a power line networking device | |||
279 | 8270597 | Microphone assembly | |||
280 | 8265264 | Waterproof electronic appliance | |||
281 | 8260380 | Headset with remote control | |||
282 | 8260343 | Electronic devices including vertically mounted loudspeakers and related assemblies and methods | |||
283 | 8259931 | Sliding mechanism and electronic device having the same | |||
284 | 8259930 | Waterproof structure and electronic equipment | |||
285 | 8259929 | Methods and apparatuses to provide a back up power supply for a network interface device | |||
286 | 8254566 | Sliding mechanism and electronic device having the same | |||
287 | 8254565 | Hand-held device | |||
288 | 8254564 | Keypad having keys with angled engagement surfaces, and associated handheld electronic device | |||
289 | 8249248 | Telephone with an information panel | |||
290 | 8244319 | Split keyboard with a dual battery pack | |||
291 | 8243961 | Controlling microphones and speakers of a computing device | |||
292 | 8243918 | Outlet add-on module | |||
293 | 8238548 | Controlling echo during double-talk in a voice conference | |||
294 | 8233612 | Network apparatus capable of canceling far-end-crosstalk and network signal processing method thereof | |||
295 | 8233602 | Authentication apparatus | |||
296 | 8229106 | Apparatus and methods for enhancement of speech | |||
297 | 8229105 | Purposeful degradation of sidetone audio for providing feedback about transmit-path signal quality | |||
298 | 8218758 | Sliding rail structure of a sliding cell phone and its methods | |||
299 | 8218756 | User-controllable equalization for telephony | |||
300 | 8213895 | Multi-wideband communications over multiple mediums within a network | |||
301 | 8213600 | Sliding mechanism | |||
302 | 8213599 | Spring, semi-automatic sliding device using the same and sliding-type portable communication terminal | |||
303 | 8208673 | Miniaturized acoustic boom structure for reducing microphone wind noise and ESD susceptibility | |||
304 | 8208624 | Hearing aid compatible mobile phone | |||
305 | 8204472 | Multi-wideband communications over power lines | |||
306 | 8204212 | Phone and method for reducing noise in a subscriber line interface circuit thereof | |||
307 | 8204211 | Systems and methods for selecting tones for far-end cross talk mitigation | |||
308 | 8204175 | Electronic surveillance via correlation of call legs | |||
309 | 8200281 | Secure removable card and a mobile wireless communication device | |||
310 | 8200236 | Method and apparatus for triggering a state change for a communication device | |||
311 | 8199927 | Conferencing system implementing echo cancellation and push-to-talk microphone detection using two-stage frequency filter | |||
312 | 8199906 | Implementation of a communication link in powered device for layer 2 support | |||
313 | 8190191 | Mobility middleware architecture for multiple radio access technology apparatus | |||
314 | 8190183 | System and method for differentiating between incoming and outgoing messages and identifying correspondents in a TTY communication | |||
315 | 8189753 | Distributed intercom system with audio bus | |||
316 | 8184790 | Notification of dropped audio in a teleconference call | |||
317 | 8175263 | Integrated thin client and telephony device | |||
318 | 8175262 | Per tone coprocessor architecture | |||
319 | 8170545 | Information technology support system and method | |||
320 | 8170524 | Power line communication system and an intelligent meter | |||
321 | 8170202 | Method, terminal device and communication system for programming a button of a communication terminal device | |||
322 | 8170201 | Power feeding system for telephone terminal in LAN | |||
323 | 8165284 | Slide module and portable terminal having the same | |||
324 | 8165283 | Advanced ADSL splitter | |||
325 | 8160650 | Bidirectional slide-type mobile communication terminal and method of providing graphic user interface thereof | |||
326 | 8160237 | Multi-stage differential warping amplifier and method | |||
327 | 8150323 | Mobile communication terminal and method for inputting/outputting voice during playback of music data by using bluetooth | |||
328 | 8144852 | Method and apparatus for spectral containment over telephone service lines | |||
329 | 8140055 | Method for performing digital broadcasting service in a dual-hinge type mobile terminal | |||
330 | 8140049 | Power line communication methods and devices | |||
331 | 8139762 | Electronic device and acoustic playback method | |||
332 | 8135157 | Headset with adjustable boom | |||
333 | 8135127 | Method and apparatus for detecting and responding to events occurring on remote telephone | |||
334 | 8130942 | Antihelix-conforming ear-mount for personal audio-set | |||
335 | 8130939 | Maintaining convergence of a receiver during changing conditions | |||
336 | 8126138 | Integrated speaker assembly for personal media device | |||
337 | 8121283 | Tapered capacitive sensing structure | |||
338 | 8116813 | System for product retrieval using a coded surface | |||
339 | 8111824 | Control circuit for controlling a DC supply voltage for a terminal | |||
340 | 8102995 | Communication device and telephone communication method thereof | |||
341 | 8099145 | Electronic device | |||
342 | 8098814 | Handheld electronic device with keyboard | |||
343 | 8098812 | Method of controlling an adaptation of a filter | |||
344 | 8095132 | Remote SIM card replacement and activation process | |||
345 | 8090096 | Tilting mechanism and electronic apparatus | |||
346 | 8090095 | Method and apparatus for power-mode control | |||
347 | 8089901 | Communicating in a network that includes a medium having varying transmission characteristics | |||
2011 | |||||
348 | 8086194 | Communication apparatus | |||
349 | 8081950 | Power line communication apparatus and power line communication method | |||
350 | 8081789 | Microphone holder and microphone device using same | |||
351 | 8081752 | Method and apparatus for reducing crosstalk between digital subscriber lines | |||
352 | 8077860 | Accessory structure for portable electronic devices | |||
353 | 8073508 | Slide module and mobile terminal having the same | |||
354 | 8073504 | Portable terminal | |||
355 | 8073138 | Information input device, and electronic apparatus using same | |||
356 | 8073136 | Methods and systems for compensating for alien crosstalk between connectors | |||
357 | 8073135 | Binder identification | |||
358 | 8068884 | Acoustic echo reduction circuit for a "hands-free" device usable with a cell phone | |||
359 | 8064595 | Adaptive mute | |||
360 | 8064593 | Auto host disconnect on loss of power to a headset amplifier | |||
361 | 8064592 | Adaptive communication systems and methods | |||
362 | 8064591 | Sound pick-up method and device, in particular for handsfree telephone terminals | |||
363 | 8060055 | Method, system and color ring back tone platform for downloading media resources to terminal | |||
364 | 8055406 | Hands-free system, navigation system, and terminal memory data management method | |||
365 | 8055004 | Fiber optic earpiece to reduce radiation transmitted to a cell phone user | |||
366 | 8051309 | Method and apparatus to combine power and control signals in a mobile computing device | |||
367 | 8050720 | Speed dialing method for displaying contact information and mobile communication device using the same | |||
368 | 8050398 | Adaptive conferencing pod sidetone compensator connecting to a telephonic device having intermittent sidetone | |||
369 | 8050397 | Multi-tone signal discriminator | |||
370 | 8046032 | Panel construction for housing keypads of mobile computing device | |||
371 | 8045704 | Electronic apparatus and jig system | |||
372 | 8041066 | Wireless system for hearing communication devices providing wireless stereo reception modes | |||
373 | 8041016 | Method and device for access communication/control | |||
374 | 8036723 | Keypad and microphone arrangement | |||
375 | 8036713 | Apparatus and method for providing standby screen image of mobile terminal | |||
376 | 8032192 | Portable terminal and sliding/swing-type cradling apparatus thereof | |||
377 | 8031864 | Dual-purpose hardware aperture | |||
378 | 8031178 | Keyboard with chassis structure | |||
379 | 8027464 | Holding apparatus for accommodating a mobile telephone | |||
380 | 8027463 | Fixed telephone set capable of preventing howling and temperature rise of a handset | |||
381 | 8027461 | Systems and methods for splitting telecommunication signals with reduced noise | |||
382 | 8024019 | Portable information terminal | |||
383 | 8023642 | Method for extending ethernet over twisted pair conductors and to the telephone network and plug-in apparatus for same employing standard mechanics | |||
384 | 8019077 | Methods and apparatus for low voltage control of a subscriber line interface circuit | |||
385 | 8014518 | Patch panel apparatus and system including patch cord path tracing | |||
386 | 8014412 | Power sourcing equipment having bipolar junction transistor for controlling power supply and supporting AC disconnect-detection function | |||
387 | 8009825 | Signal processing | |||
388 | 8005208 | Sealing assembly and sliding cover mechanism using the sealing assembly | |||
389 | 8005207 | Microphone coupler system for a communication device | |||
390 | 8005206 | VDSL splitter | |||
391 | 8005205 | Protective plug for distribution frame devices in telecommunications and data technology | |||
392 | 8000466 | Method and apparatus for multiparty collaboration enhancement | |||
393 | 7995747 | Weather guard | |||
394 | 7991149 | Information input device, and electronic apparatus using same | |||
395 | 7991148 | Display cover and case for a communication device | |||
396 | 7991147 | Handset device with laminated architecture | |||
397 | 7986982 | Handset device | |||
398 | 7986802 | Portable electronic device and personal hands-free accessory with audio disable | |||
399 | 7986777 | Stand for desktop telephone | |||
400 | 7983908 | Noise-canceling device for voice communication terminal using configurable multiple digital filters | |||
401 | 7983413 | VoIP accessory | |||
402 | 7980952 | Storage medium having information processing program stored thereon and information processing apparatus | |||
403 | 7978845 | Powered patch panel | |||
404 | 7970374 | Multi-wideband communications over power lines | |||
405 | 7970126 | Communication terminal with movable display | |||
406 | 7970125 | Output stacking architecture for an amplifier | |||
407 | 7966046 | Mobile communication and/or gaming terminal | |||
408 | 7965835 | Three-dimensional multi-foldable device | |||
409 | 7962118 | Method for transmitting a signal on a power line network, transmitting unit, receiving unit and system | |||
410 | 7961869 | Hands-free voice communication apparatus with speakerphone and earpiece combo | |||
411 | 7961848 | Internet facilitated emergency and general paging system | |||
412 | 7961846 | Interface device for testing a telecommunication circuit | |||
413 | 7957771 | Hands-free conferencing apparatus and method for use with a wireless telephone | |||
414 | 7957717 | System and method for differentiating between incoming and outgoing messages and identifying correspondents in a TTY communication | |||
415 | 7949127 | Headset | |||
416 | 7945043 | Hands-free telephone holder | |||
417 | 7945042 | Method for switching active calls | |||
418 | 7940924 | Reversible behind-the-head mounted personal audio set with pivoting earphone | |||
419 | 7940923 | Speakerphone with a novel loudspeaker placement | |||
420 | 7937065 | System and method for communicating over neutral power lines | |||
421 | 7933401 | Key assembly | |||
422 | 7929940 | System and method for transmitting wireless digital service signals via power transmission lines | |||
423 | 7925239 | Power line communication apparatus and power line communication method | |||
424 | 7925005 | Longitudinal balance calibration for a subscriber line interface circuit | |||
425 | 7920698 | Microphone systems for telephones | |||
426 | 7917098 | Configurable frequency band elimination for powerline network | |||
427 | 7912444 | Media portion selection system and method | |||
428 | 7907978 | Mobile terminal | |||
429 | 7907721 | Headset with auxiliary input jacks(s) for cell phone and/or other devices | |||
430 | 7903809 | Power management for serial-powered device connections | |||
431 | 7899436 | Multi-wideband communications over power lines | |||
432 | 7899181 | Vehicular holding module capable of zooming information displayed on a screen and related vehicular electronic module | |||
433 | 7894620 | Speaker set and mobile phone incorporating the same | |||
434 | 7894487 | Time synchronization in a network | |||
435 | 7889860 | Securable cradle for handheld devices | |||
436 | 7885690 | Methods for driving devices capable of displaying images and processing audio messages | |||
437 | 7885634 | High frequency signal hub | |||
438 | 7885633 | Power line communication methods and devices | |||
439 | 7885403 | Radiotelephone | |||
440 | 7885402 | Gain control | |||
441 | 7881463 | Wireless digital subscriber line device having reduced RF interference | |||
442 | 7881462 | Outlet add-on module | |||
443 | 7881461 | Method and apparatus for conveying bidirectional data, power and timing signals using a single transformer | |||
444 | 7881458 | Method and apparatus for adaptive hybrid termination in a multi-carrier communication system | |||
445 | 7877078 | Power line communication networks and methods employing multiple widebands | |||
446 | 7873159 | Portable electronic apparatus | |||
447 | 7869589 | Piezoelectric user interface | |||
448 | 7869199 | Battery cover assembly for portable electronic device | |||
449 | 7864949 | Keyboard arrangement and mobile communication device incorporating the same | |||
450 | 7864035 | System and method for determining whether a cordless handset is at a base unit | |||
2010 | |||||
451 | 7860238 | Communication terminal and additional function module thereof | |||
452 | 7860237 | Information input device, and electronic apparatus using the same | |||
453 | 7853238 | Powerline base station | |||
454 | 7853237 | Power supplying apparatus, power line communication apparatus, power line communication system, and power supplying method | |||
455 | 7853009 | Electronic device having a single-split hinge | |||
456 | 7853008 | Supply circuit for supplying a two-wire line | |||
457 | 7853007 | Conference terminal with echo reduction for a voice conference system | |||
458 | 7848730 | Method of controlling interference from a transmitter in one communication system to a receiver in another communication system | |||
459 | 7848512 | Personal audio device accessory | |||
460 | 7848511 | Telecommunications-terminal mute detection | |||
461 | 7844050 | Biaxial hinge device for mobile terminal and mounting mechanism thereof | |||
462 | 7840243 | Antenna arrangement in a mobile terminal apparatus | |||
463 | 7840222 | Reverse lookup of mobile location | |||
464 | 7839997 | Circuit for preventing unauthorized access to phones | |||
465 | 7839996 | Folding electronic device, connecting component and camera unit | |||
466 | 7839994 | Class A-B line driver for gigabit Ethernet | |||
467 | 7839993 | Echo canceling arrangement | |||
468 | 7839881 | Projection headset | |||
469 | 7835515 | Telephone terminal with control of voice reproduction quality in the receiver | |||
470 | 7831038 | Smart interface technology | |||
471 | 7831037 | Four column keypad | |||
472 | 7822059 | Managing contention-free time allocations in a network | |||
473 | 7817798 | Compact beamforming microphone assembly | |||
474 | 7813495 | Apparatus and method for automatic gain control and echo cancellation in a network system | |||
475 | 7804955 | Flexible key plate | |||
476 | 7801296 | xDSL-line-interface-circuit | |||
477 | 7796749 | Electronic device | |||
478 | 7796748 | Telecommunication terminal able to modify the voice transmitted during a telephone call | |||
479 | 7792555 | Hinge device and portable electronic apparatus | |||
480 | 7792284 | Washable shell for a handheld electronic device | |||
481 | 7792283 | Panel attachment assembly, panel attachment method and telephone | |||
482 | 7792259 | Collective housing intercom system | |||
483 | 7787618 | Portable electronic device | |||
484 | 7787617 | Communication terminal | |||
485 | 7787616 | Portable communication apparatus | |||
486 | 7783478 | Two stage frequency subband decomposition | |||
487 | 7783034 | Communication privacy mask | |||
488 | 7783033 | Network breaker | |||
489 | 7778411 | Universal microphone array stand | |||
490 | 7778410 | Personal audio listening device | |||
491 | 7778407 | Statistical approach to automatic gain control for managing audio messages over a network | |||
492 | 7778401 | Communication apparatus | |||
493 | 7773745 | Opening mechanism having a solid body, a movable body and a guide mechanism for sliding the movable body with respect to the solid body | |||
494 | 7764943 | Overhead and underground power line communication system and method using a bypass | |||
495 | 7764784 | Handset cradle | |||
496 | 7764775 | Distributed intercom system | |||
497 | 7761079 | Power line communication device and method | |||
498 | 7760869 | Method and apparatus for controlling the transmit volume level of a speakerphone | |||
499 | 7756266 | Device for voltage-noise rejection and fast start-up | |||
500 | 7756260 | Method for providing features to the user of a telephone, a central unit and a telecommunication system therefor | |||
501 | 7751795 | Wired, wireless, infrared, and powerline audio entertainment systems | |||
502 | 7751650 | Image processing device image processing program and image processing method | |||
503 | 7751555 | Angle variable mechanism and desktop apparatus | |||
504 | 7751543 | System and method for button-independent dispatch communications | |||
505 | 7750495 | Power line adapter and method of controlling power line adapter operated in power-saving mode | |||
506 | 7747010 | Telephony software client application for handling the insertion and removal of logical audio devices | |||
507 | 7747009 | Retaining device for mobile user devices | |||
508 | 7747008 | Voice absorber for portable telephonic devices | |||
509 | 7747007 | Protective cover for portable communication device | |||
510 | 7747006 | Handset and base unit with semi-translucent finish | |||
511 | 7747005 | Opening and closing mechanism, and electronic device | |||
512 | 7747004 | Devices and methods for acoustic usability | |||
513 | 7747003 | Wireless headset apparatus and methods | |||
514 | 7747000 | Subscriber line driver with equalizer | |||
515 | 7746995 | Telephone control system | |||
516 | 7742593 | Telephone handset for a broadband telecommunication system | |||
517 | 7738656 | Portable terminal device | |||
518 | 7738654 | Isolation of transmit and receive signals | |||
519 | 7738653 | Method for selecting impedance setting for loop start trunk line | |||
520 | 7734040 | Modular housing system for outside plant telecommunications equipment | |||
521 | 7734039 | Telephone apparatus | |||
522 | 7734037 | Remote terminal unit connector | |||
523 | 7729684 | Combined global positioning system receiver and radio | |||
524 | 7729493 | Cover for mobile computer | |||
525 | 7729492 | Portable communication device having a multi-axis hinge assembly | |||
526 | 7729491 | Method and device for amplifying a reception signal | |||
527 | 7729372 | Communicating in a network that includes a medium having varying transmission characteristics | |||
528 | 7725096 | Multi-wideband communications over power lines | |||
529 | 7724895 | Cordless telephone apparatus | |||
530 | 7720234 | Communications interface device | |||
531 | 7720218 | Telephone with enhanced function display and selection ability | |||
532 | 7720217 | Mute condition indicator | |||
533 | 7720216 | Acoustic pass through for handsets | |||
534 | 7720201 | Communication apparatus | |||
535 | 7715817 | Methods and systems for providing wireless communications through a utility pole mounted antenna | |||
536 | 7715816 | Methods and systems for providing wireless network communications | |||
537 | 7715550 | Telephone line interface, side-tone attenuation circuit and method | |||
538 | 7711112 | Hinge, and opening/closing type portable terminal device having the same | |||
539 | 7711111 | Assembling structure of back cover for mobile phone | |||
540 | 7711110 | Universal speakerphone with adaptable interface | |||
541 | 7711109 | System and method for subliminal time domain duplexing | |||
542 | 7706527 | Interruption device for a data communication line | |||
543 | 7706526 | Method and apparatus for powering electronics associated with a telephone line twisted pair | |||
544 | 7706525 | Systems and methods for side-tone noise suppression | |||
545 | 7706515 | Programmable paging controller with programmable switch contact | |||
546 | 7702122 | Headgear for docking and listening to portable audio devices | |||
547 | 7702096 | Self-cradling type portable terminal | |||
548 | 7697679 | Telephone set having a handset with an integrated pointing device | |||
549 | 7697674 | Gate intercom with a wireless telephony interface | |||
550 | 7693523 | Implementation of collaborative telecommunications services | |||
551 | 7689175 | Configurable frequency band elimination for powerline network | |||
552 | 7688971 | Network telephone expansion seat | |||
553 | 7688969 | Operation dial with rotary encoder | |||
554 | 7685340 | Method and system for programmable input/output transceiver wherein transceiver in configurable to support a plurality of interface standards | |||
555 | 7684837 | Cellular phone and cellular phone manufacturing method | |||
556 | 7684836 | Portable terminal device of the foldable type | |||
557 | 7684583 | In-ear type and ear-plug type earphone with adjustable volume of front chamber between speaker and housing | |||
558 | 7684562 | Telephone sanitizing glove | |||
559 | 7684560 | Earset | |||
560 | 7684499 | Multi-band line interface circuit with line side cancellation | |||
561 | 7680267 | Headset with a retractable speaker portion | |||
562 | 7680251 | Prevention of an alarm activation and supporting methods and apparatus | |||
563 | 7676036 | Input device and personal mobile terminal having the same | |||
564 | 7672451 | Small sized hinge device for use in electronic handheld device | |||
565 | 7672448 | Network interface device with a remote power source | |||
566 | 7668309 | Portable accessory holder | |||
567 | 7668308 | In-the-ear headset and headphone enhancements | |||
568 | 7668307 | Reconfigurable and moldable electronic device | |||
569 | 7664256 | Mobile terminal apparatus | |||
570 | 7664255 | Hands free aural device holder | |||
571 | 7660411 | Portable telephone | |||
572 | 7660410 | Cellular phone apparatus with keyboard | |||
573 | 7660409 | Multi-dwelling unit module for passive optical networks | |||
574 | 7660408 | Attenuation and termination circuit using impedance synthesis | |||
575 | 7657027 | Portable terminal with hinge apparatus | |||
576 | 7657026 | Sliding mechanism for slide-type portable electronic device | |||
577 | 7657025 | Microphone module and method for fabricating the same | |||
578 | 7657023 | Splitter wall plates for digital subscriber line (DSL) communication systems and methods to use the same | |||
579 | 7649989 | Wearable terminal holder with pivoting D-rings | |||
580 | 7646866 | Slide module for a slide type electronic device | |||
581 | 7646865 | Telephone handset coupling system | |||
582 | 7646864 | Foot-actuated call answer-end apparatus | |||
583 | 7646863 | Movement powered headset | |||
584 | 7646862 | Speakerphone with a novel loudspeaker placement | |||
585 | 7643631 | Enclosure for broadband service delivery system | |||
586 | 7643629 | Low voltage sensing and control of battery referenced transistors in subscriber loop applications | |||
2009 | |||||
587 | 7639795 | Hinge device and method for wireless communication device | |||
588 | 7636437 | Telescopic structure for a telephone apparatus | |||
589 | 7634082 | Retractable telephone holding unit | |||
590 | 7634081 | Method for manufacturing electronic device panel and structure thereof | |||
591 | 7634080 | Multifunctional keyboard for a mobile communication device and method of operating the same | |||
592 | 7634071 | Auto switch system and method thereof for IP phone and default audio device | |||
593 | 7630491 | Speaker enhancer and method of use | |||
594 | 7630490 | Method and apparatus for DC feed | |||
595 | 7630489 | Adaptive communication systems and methods | |||
596 | 7627304 | Power line communication apparatus and power line communication method | |||
597 | 7627112 | Sound guide for speaker and handset for mobile communication using the same | |||
598 | 7623654 | Systems and methods for interfacing telephony devices with cellular and computer networks | |||
599 | 7623653 | Systems and methods for passing through alternative network device features to plain old telephone system (POTS) devices | |||
600 | 7623641 | Audio communication unit | |||
601 | 7623640 | Door intercom system | |||
602 | 7620176 | Adjustable view stand | |||
603 | 7620175 | Handset device with audio porting | |||
604 | 7620174 | Touchpad | |||
605 | 7620173 | Headset with integrated boom clip | |||
606 | 7620171 | Method and apparatus for powering a DS3 device | |||
607 | 7616774 | Clampless headset mounting assembly | |||
608 | 7616760 | Headset for use with a communication and/or multimedia device | |||
609 | 7616759 | Telephone line switching device | |||
610 | 7613294 | Hands free aural device holder | |||
611 | 7613293 | Hinge apparatus for a portable terminal and portable terminal having the same | |||
612 | 7612680 | First aid information for cellular telephones and electronic devices | |||
613 | 7609833 | Rotating module | |||
614 | 7599487 | Sliding type hinge device and personal portable device using the same | |||
615 | 7599486 | Telescopic boom with conductive spring connectors | |||
616 | 7596390 | Cellular phone | |||
617 | 7593524 | Hinge arrangement | |||
618 | 7593031 | Integrated desktop videoconferencing system | |||
619 | 7590404 | Surface wave communications between a remote antenna and a base station that is co-located with another base station | |||
620 | 7590384 | Method for operating a near field communication system | |||
621 | 7590242 | Selective multimedia data encryption | |||
622 | 7590234 | Keypad with flanged keys for high audio front porting communication products | |||
623 | 7587043 | Seals for communication devices and method for assembling communication device | |||
624 | 7587042 | High performance ADSL line conditioner system and method | |||
625 | 7583952 | Access pointer for interconnecting power line communication network and wireless network and method therefor | |||
626 | 7580518 | Dual-axes hinge part for hinged components | |||
627 | 7580509 | Telephone hook switch using non-contact capacitive sensor and telephone using the same | |||
628 | 7577468 | Exchangeable covers for radio communication terminals | |||
629 | 7574002 | Mechanical key lock for portable electronic devices and portable electronic devices including the same | |||
630 | 7574001 | Internet protocol telephone system | |||
631 | 7570978 | Apparatus and method for preventing an unintentional activation of a mobile communication device | |||
632 | 7570758 | Protective sleeve for telephone handsets | |||
633 | 7570757 | Tilt mechanism for communication device | |||
634 | 7567667 | Inmate telephones having inmate-movable telephone bodies | |||
635 | 7567666 | Method and apparatus for crosstalk mitigation | |||
636 | 7567660 | Message pad subsystem for a software-based intercom system | |||
637 | 7564968 | Voice containment device for a telephone | |||
638 | 7564967 | Electronic device with two-dimensional sliding cover and two-dimensional slide apparatus | |||
639 | 7564966 | Recognition of audio device in portable terminal | |||
640 | 7564965 | Wire communication terminal having LCD module | |||
641 | 7564963 | Multi-handset telephone system | |||
642 | 7561867 | Multi-unit power line communications system and method | |||
643 | 7561687 | Hinge assembly for a foldable electronic device | |||
644 | 7561686 | Mobile terminal | |||
645 | 7561685 | Handheld electronic device with keyboard | |||
646 | 7561684 | Mounting structure for an electroacoustic transducer | |||
647 | 7561683 | Method for measuring resistance for a subscriber line interface circuit using a protective circuit | |||
648 | 7558385 | Impedance adapter for a high-bandwidth transmission channel of a copper-wired terminal system | |||
649 | 7557676 | Signal transmission circuit, electronic device, cable, and connector | |||
650 | 7555120 | Slide type mobile terminal | |||
651 | 7555119 | Device for automatically lifting a cover of mobile phone by pressing | |||
652 | 7555118 | Microphone coupler for a communication device | |||
653 | 7552050 | Speech recognition system and method utilizing adaptive cancellation for talk-back voice | |||
654 | 7551735 | Housing for an electronic device, and method for making the same | |||
655 | 7548617 | Bluetooth earphone | |||
656 | 7542565 | Foldable cellular phone | |||
657 | 7542564 | Headset with integral hook | |||
658 | 7542563 | Retractable headset for an audio playback system | |||
659 | 7542562 | Method for automatically adapting levels of signals exchanged in a communication network | |||
660 | 7539479 | Use of T1 facility data link to transport status and configuration data packets for loop-powered T1 radio | |||
661 | 7539303 | Keypad assembly | |||
662 | 7539302 | Dockable earpiece for portable phones | |||
663 | 7539299 | Office-line trunk circuit operating on ground-start and loop-start modes, method of controlling same, and control program for same | |||
664 | 7537964 | Method of fabricating a miniature silicon condenser microphone | |||
665 | 7536010 | Exchange system, button telephone set and exchange | |||
666 | 7536009 | Folder type mobile terminal | |||
667 | 7532719 | Voice absorber for portable telephonic devices | |||
668 | 7532718 | Headphone receiver apparatus for use with low power transmitters | |||
669 | 7529566 | Speakerphone with a cellular phone connection | |||
670 | 7529564 | Timed ring suppressor | |||
671 | 7529545 | Sound enhancement for mobile phones and others products producing personalized audio for users | |||
672 | 7529364 | Protective cover for electronic device | |||
673 | 7526083 | Ground connecting apparatus for mobile terminal | |||
674 | 7526082 | Portable terminal and opening or closing method therefor | |||
675 | 7522946 | Hinge apparatus for mobile communication terminals | |||
676 | 7522722 | System and method for interfacing plain old telephone system (POTS) devices with cellular devices in communication with a cellular network | |||
677 | 7519176 | Key telephone set having interchangeable units | |||
678 | 7519175 | Integral microphone and speaker configuration type two-way communication apparatus | |||
679 | 7519174 | Communication terminal with casing conductors for reducing antenna gain degradation | |||
680 | 7515898 | Connect customized ring back tone service only at one MSC when intersystem page is involved | |||
681 | 7515709 | Modular apparatus holder with multipurpose intermediate support member for supporting minicomputers, cell phones and similar apparatus | |||
682 | 7515708 | Privacy case for telephones | |||
683 | 7515707 | Portable apparatus having two rotatable and foldable units and hinge device used for the same | |||
684 | 7515706 | Headset with retractable cord for portable devices with automatic switching capability | |||
685 | 7515705 | Folding type portable terminal | |||
686 | 7515703 | Method and system for determining conference call embellishment tones and transmission of same | |||
687 | 7512229 | Key unit, method for marking key top, and method for manufacturing key unit using the same | |||
688 | 7511515 | System for providing power over communication cable having mechanism for determining resistance of communication cable | |||
689 | 7509114 | Redundant powered device circuit | |||
690 | 7508933 | Resonance chamber of a cellular phone | |||
691 | 7508932 | Cell phone holder headband | |||
692 | 7508929 | Apparatus and method of simulating telephone "in use" signals in a line in a telephone ring system | |||
693 | 7505602 | Mobile device with improved acoustic porting | |||
694 | 7505582 | Hinge mechanism having multiple axes of rotation for positioning of a mobile communication device | |||
695 | 7505581 | Folder type mobile terminal | |||
696 | 7502462 | Keyboard for a mobile device | |||
697 | 7499540 | Device having pivotable hinges | |||
698 | 7499539 | Telephone line power supply | |||
699 | 7496638 | Launching a web site using a portable scanner | |||
700 | 7496195 | Waterproof flip phone case | |||
701 | 7496194 | Sliding and swing apparatus for a portable apparatus | |||
702 | 7493100 | Compensating for dynamic nulls in a power line communication system | |||
703 | 7492893 | Rotation open and close type mobile terminal | |||
704 | 7492892 | Slide opening/closing type mobile device | |||
705 | 7492890 | Integrated corded system connector for a wireless communications device | |||
706 | 7492889 | Noise suppression based on bark band wiener filtering and modified doblinger noise estimate | |||
707 | 7489778 | Mobile communication terminal with rotary camera | |||
708 | 7486972 | Hands-free telephone apparatus | |||
709 | 7486788 | Transceiver with integrated hybrid circuit | |||
710 | 7486787 | Subscriber line interface circuitry with common base audio isolation stage | |||
711 | 7483688 | Network device with hybrid-mode transmitter | |||
712 | 7483531 | Telephone bill reducer | |||
713 | 7480379 | Mobile electronic equipment | |||
714 | 7480378 | Method and system for increasing subscriber line interface circuit voltage during ringing | |||
715 | 7477737 | Electronic apparatus, and cover and structural body thereof | |||
716 | 7474747 | Electronic communication device including audio channeling | |||
2008 | |||||
717 | 7466820 | Rotating apparatus for liquid crystal display | |||
718 | 7466818 | Acoustic shock prevention | |||
719 | 7463877 | PLC breaker bridge | |||
720 | 7463734 | Display window cover assemblies and electronic devices and methods using the same | |||
721 | 7463732 | Flexible data outlet | |||
722 | 7460664 | Handsfree system and incoming call answering method in handsfree system | |||
723 | 7460663 | System and method for distributing network communication signals | |||
724 | 7460661 | Method and means for increasing inherent channel capacity for wired network | |||
725 | 7457407 | Mobile phone and battery-fixing device thereof | |||
726 | 7457405 | Enhanced low pass filter | |||
727 | 7456994 | Mobile telecommunications device with stylus having printhead tip | |||
728 | 7454014 | Device with a loudspeaker and an ear piece cover | |||
729 | 7454013 | Multiuse telecommunications power system | |||
730 | 7453943 | Hybrid circuit for broadband modems | |||
731 | 7453352 | Data communication over a power line | |||
732 | 7450715 | Transceiver for bidirectional frequency division multiplexed transmission | |||
733 | 7450712 | Low voltage sensing and control of battery referenced transistors in subscriber loop applications | |||
734 | 7447309 | Hinge mechanism | |||
735 | 7447308 | Low-noise transmitting receiving earset | |||
736 | 7443967 | Second communication during ring suppression | |||
737 | 7437140 | Power line network bridge | |||
738 | 7436952 | Earset microphone | |||
739 | 7436951 | Portable interconnection system for incompatible audio communication networks | |||
740 | 7433468 | Electrical device for adjusting the angle between a top module and a bottom module | |||
741 | 7433467 | Portable wireless terminal with ground connecting device which uses a hinge device | |||
742 | 7433466 | Radio handset | |||
743 | 7430412 | Digitally programmable continuously variable precision microwave attenuator | |||
744 | 7430291 | Common mode transmission line termination | |||
745 | 7426379 | Method and system for sound mitigation during initiation of a packet-based real-time media session | |||
746 | 7419099 | Portable terminal and swing hinge module thereof | |||
747 | 7409059 | Portable terminal unit | |||
748 | 7409058 | Display cover for a communication device | |||
749 | 7409052 | Universal intercom adapter for varying residential wiring systems | |||
750 | 7406172 | Reversible behind-the-head mounted personal audio set with pivoting earphone | |||
751 | 7403613 | Holder for supporting objects in vehicle | |||
752 | 7403612 | Slide mechanism | |||
753 | 7403611 | Small size hands-free speakerphone apparatus | |||
754 | 7400914 | Wireless headphones with connector socket | |||
755 | 7400721 | Pivot apparatus and method thereof | |||
756 | 7400720 | System and method for optimizing digital subscriber line based services | |||
757 | 7400719 | Subscriber line interface circuitry transceiver | |||
758 | 7400716 | Multifunctional intercom system with message recording/retrieval functions | |||
759 | 7398341 | Method and system for programmable input/output transceiver wherein transceiver is configurable to support a plurality of interface standards | |||
760 | 7397914 | Multiple path hybrid for subscriber line services | |||
761 | 7394899 | Device for transforming a digital signal into an acoustic one, and that makes use of a standard phase modulation | |||
762 | 7394898 | Echo removing apparatus | |||
763 | 7391863 | Method and system for an interchangeable headset module resistant to moisture infiltration | |||
764 | 7391862 | Communication unit | |||
765 | 7391861 | Input devices and their use | |||
766 | 7388956 | Weather guard | |||
767 | 7386119 | Filtered transmit cancellation in a full-duplex modem data access arrangement (DAA) | |||
768 | 7381589 | Silicon condenser microphone and manufacturing method | |||
769 | 7379763 | Automatic sliding mechanism | |||
770 | 7376231 | Abuse resistant safety telephone and method of adaptation | |||
771 | 7376230 | Mobile phone and battery-release device | |||
772 | 7369838 | Intra-premises wireless broadband service using lumped and distributed wireless radiation from cable source input | |||
773 | 7369655 | Telephone handset universal connector | |||
774 | 7366298 | Headset | |||
775 | 7366296 | Network support for voice path signal strength balancing | |||
776 | 7363045 | Systems and methods for exchanging data and audio between cellular telephones and landline telephones | |||
777 | 7362858 | High-speed telephone connection | |||
778 | 7362857 | Subscriber line interface circuitry transceiver | |||
779 | 7362856 | Subscriber line interface circuitry transceiver | |||
780 | 7362855 | Subscriber line interface circuitry transceiver | |||
781 | 7359738 | Method and apparatus for establishing an audio link to a wireless earpiece in reduced time | |||
782 | 7359506 | Opening and closing device and electronic equipment using the same | |||
783 | 7352859 | Audio earpiece for wideband telephone handsets | |||
784 | 7352857 | Method and apparatus for spectral containment over telephone service lines | |||
785 | 7349723 | Keypad and microphone arrangement | |||
786 | 7349536 | Techniques for providing uninterrupted digital communications to customers coupled to local loop generation equipment | |||
787 | 7346332 | Wired, wireless, infrared, and powerline audio entertainment systems | |||
788 | 7346158 | Method and system for wiring a digital subscriber line circuit | |||
789 | 7343182 | Automatic sliding mechanism | |||
790 | 7340052 | Multifunctional electronic device | |||
791 | 7340051 | Power ramp-up in a line-powered network element system | |||
792 | 7339924 | Method and apparatus for providing ringing timeout disconnect supervision in remote telephone extensions using voice over packet-data-network systems (VOPS) | |||
793 | 7336944 | Method and apparatus for legal intercept monitoring of a cellular telephone modem (CTM) device | |||
794 | 7336782 | Wiring structure for folding portable device | |||
795 | 7336781 | Latching assembly for a removable cover of a portable electronic device | |||
796 | 7336780 | Differential signaling transmission circuit | |||
797 | 7333607 | Replaceable panel device for a handset | |||
798 | 7333606 | Splitter architecture for a telecommunications system | |||
799 | 7333604 | Adaptive notification of an incoming call in a mobile phone | |||
800 | 7333603 | System and method for adapting an analog echo canceller in a transceiver front end | |||
801 | 7330721 | Method and system for supporting non-intrusive and effective voice communication among mobile users | |||
802 | 7330703 | Transceiver for bidirectional frequency division multiplexed transmission | |||
803 | 7330548 | Mobile terminal and sliding module and a method thereof | |||
804 | 7330547 | Dual keypad phone | |||
805 | 7330546 | Multimedia patching box | |||
806 | 7330545 | Dual transformer hybrid system and method | |||
807 | 7330544 | Digital isolation barrier as interface bus for modems | |||
808 | 7327841 | SAR optimized receptacle for mobile devices | |||
809 | 7327840 | Loudspeaker telephone equalization method and equalizer for loudspeaker telephone | |||
810 | 7324643 | Invisible double function hinge construction | |||
811 | 7319749 | Hinge with orthogonal pivot axes | |||
812 | 7315620 | Small-sized opening and closing device | |||
2007 | |||||
813 | 7302283 | Portable digital communication apparatus having improved grip | |||
814 | 7302055 | Discharging envelope detector | |||
815 | 7298837 | Cross-over voltage lock for differential output drivers | |||
816 | 7289628 | Ozone functions handset | |||
817 | 7289626 | Enhancement of sound quality for computer telephony systems | |||
818 | 7286812 | Coupling between power line and customer in power line communication system | |||
819 | 7286663 | Asymmetric digital subscriber line system capable of automatically controlling receipt gain and method thereof | |||
820 | 7280857 | Mobile communications device having rotating display and camera | |||
821 | 7280845 | Method for simplifying the exchange of a SIM card of subscribers of a digital mobile communications network | |||
822 | 7280655 | DSL protector having a detachable wire interface | |||
823 | 7277691 | Method and system for management of call tones | |||
824 | 7269450 | Sliding/swing-type portable digital communication apparatus | |||
825 | 7269403 | Dual-mode wireless and wired power line communications | |||
826 | 7269255 | Portable terminal device | |||
827 | 7269254 | Integrated driver circuitry | |||
828 | 7266591 | Providing content delivery during a call hold condition | |||
829 | 7266196 | Telephone mouthpiece and earpiece cover system | |||
830 | 7260214 | Programmable subscriber line circuit partitioned into high voltage interface and digital control subsections | |||
831 | 7260212 | Method and apparatus for subscriber line control circuit | |||
832 | 7260211 | Method and circuit for adapting the impedance of an analog telecommunication connection | |||
833 | 7260103 | Mode-dependent, multiple bias-driven battery switch for subscriber line interface circuit | |||
834 | 7257223 | Splitter assembly for a telecommunications system | |||
835 | 7254230 | Subscriber line interface circuitry | |||
836 | 7248851 | Method for controlling routing information for intellectual peripherals in subscriber-based ring-back-tone-service | |||
837 | 7248690 | Voice signal clipping circuit and telephone set therewith | |||
838 | 7242765 | Headset cellular telephones | |||
839 | 7242764 | Power feeding system for telephone terminal in LAN | |||
840 | 7242761 | System and method for determining the transmit power of a communication device operating on digital subscriber lines | |||
841 | 7239699 | Monitor network for a digital switching cross-connect module | |||
842 | 7239698 | DOCSIS network interface device and methods and systems for using the same | |||
843 | 7236765 | Data communication over power lines | |||
844 | 7231037 | Active audio compressing in telecommunication | |||
845 | 7228158 | Portable terminal capable of providing stereo sound | |||
846 | 7218729 | Subscriber line interface circuitry with current drivers for downstream voice and data signals | |||
847 | 7218713 | Telephone line interface for DAA circuitry | |||
848 | 7218708 | Internet facilitated emergency and general paging system | |||
849 | 7215767 | Fixed base assembly of mobile phone | |||
850 | 7215764 | Current sensing echo cancellation device | |||
851 | 7215762 | Method of selecting impedance setting for loop start trunk line | |||
852 | 7212627 | Line interface with analog echo cancellation | |||
853 | 7209554 | Ringing controller | |||
854 | 7206405 | Enhanced high voltage interface for partitioned subscriber line interface circuit | |||
855 | 7203529 | Bar type portable wireless terminal | |||
856 | 7203309 | Mobile telephone | |||
857 | 7200377 | Method and system for multi-channel RF digitization with analog selectivity | |||
858 | 7200224 | Hinge device for portable wireless terminal | |||
859 | 7200205 | Interface device for testing a telecommunication circuit | |||
860 | 7194503 | System and method to query settings on a mobile device | |||
861 | 7190783 | Integrated digital subscriber line transceiver | |||
862 | 7187718 | System and method for encoding and decoding digital data using acoustical tones | |||
863 | 7181007 | Flat-profile keypad assembly and label | |||
864 | 7180998 | Regulator for impedance balance of a transmission wire pair | |||
865 | 7174003 | Method and system for troubleshooting a security system's telephone lines | |||
866 | 7167555 | Method for matching an adaptive hybrid to a line | |||
867 | 7162030 | Communication device with rotating housing | |||
868 | 7162029 | Gain or input volume controller and method utilizing a modified R2R ladder network | |||
869 | 7158633 | Method and apparatus for monitoring subscriber loop interface circuitry power dissipation | |||
870 | 7158614 | Metallic test access for xDSL connectors | |||
2006 | |||||
871 | 7155007 | Systems and methods for reducing noise in ADSL transmissions | |||
872 | 7155006 | Method and apparatus for outbound wave subtraction using a variable offset amplifier | |||
873 | 7149551 | Wireless headset capable of automatic link connection and method for controlling the same | |||
874 | 7149307 | Locking arrangement for a subscriber terminal device | |||
875 | 7149306 | Housing assembly of portable electronic device | |||
876 | 7149305 | Combined sidetone and hybrid balance | |||
877 | 7149286 | Electrical system like a system for testing the channels of a communication system | |||
878 | 7149246 | Method and apparatus for reducing oscillator pull in a CMOS wireless transceiver integrated circuit | |||
879 | 7146198 | Mobile phone having a side button which can fix a battery and adjust volume | |||
880 | 7146004 | Headset communication unit | |||
881 | 7142667 | Self operating opening mechanism for use in hand-held electronic device | |||
882 | 7139834 | Data routing monitoring and management | |||
883 | 7139596 | Modular two-body design for integration of mobile computing device features with a wireless communication device | |||
884 | 7139394 | Leak-tolerant handsfree telephone | |||
885 | 7135959 | Apparatus and method for wireless doorbell and security control panel interaction | |||
886 | 7130419 | Headset communication unit | |||
887 | 7130416 | Subscriber line interface circuit | |||
888 | 7130338 | Apparatus and method for communicating voice and data between a customer premises and a central office | |||
889 | 7127062 | Hybrid circuit for a broadband modem | |||
890 | 7123897 | Directional receiver coupling arrangement with frequency selectivity and gain control for DSL | |||
891 | 7120245 | Communication device having a two-mode controlled isolation circuit for power transport and bidirectional communication | |||
892 | 7116779 | Network interface device for high speed data lines | |||
893 | 7113763 | Bluetooth access point and remote bluetooth modules for powerline based networking | |||
894 | 7110537 | Mobile vehicle housing for a portable communication device | |||
895 | 7110535 | Headset communication unit | |||
896 | 7110533 | Telephone NID isolation module | |||
897 | 7110531 | Isolation system with analog communication across an isolation barrier | |||
898 | 7106876 | Microphone for simultaneous noise sensing and speech pickup | |||
899 | 7106855 | Method and apparatus for connecting broadband voice and data signals to telephone systems | |||
900 | 7106853 | Method and means for increasing inherent channel capacity for wired network | |||
901 | 7106852 | Telephone accessory for generating conversation utterances to a remote listener in response to a quiet selection | |||
902 | 7103175 | Systems and methods for an electronic hook switch for customer premises equipment | |||
903 | 7099464 | Telephone headset | |||
904 | 7099463 | Method and apparatus for detecting a compatible phantom powered device using common mode signaling | |||
905 | 7095848 | Power up reset circuit for line powered circuit | |||
906 | 7095847 | DC/DC converter and subscriber line interface circuit | |||
907 | 7095846 | Half duplex device and signal processing method thereof | |||
908 | 7092521 | Fixed base assembly of mobile phone | |||
909 | 7092519 | Communication terminal having exchangeable parts | |||
910 | 7092517 | Apparatus and method for regulating an SLIC supply voltage | |||
911 | 7088818 | Configurable analog front end for communication systems | |||
912 | 7085715 | Method and apparatus of controlling noise level calculations in a conferencing system | |||
913 | 7085542 | Portable device including a replaceable cover | |||
914 | 7085372 | Method and device for transmitting a transmission signal via a two-core line | |||
915 | 7085361 | Methods and systems for communication from an exterior of a location | |||
916 | 7082196 | Flexible structure, hinge, shutter, mobile communications apparatus and mobile telephone | |||
917 | 7082195 | Bus system for transmitting optical signals | |||
918 | 7079645 | Speaker volume control for voice communication device | |||
919 | 7076056 | Methods and apparatus for a bridge tap moderator | |||
920 | 7076053 | System for the processing of audio data used for music on hold and paging in a private branch exchange | |||
921 | 7072462 | Estimation of DSL telephone loop capability using CAZAC sequence | |||
922 | 7069046 | System and method for base station initiated call setup | |||
923 | 7065205 | Line sharing multipoint pots splitter amplifier-based coupler | |||
924 | 7065196 | Entrance intercom system | |||
925 | 7062042 | Combination exterior telephone service terminal and splicing chamber | |||
926 | 7062037 | Generic line impedance matching circuit using decomposed configurable transfer functions | |||
927 | 7058368 | Adaptive feedforward noise cancellation circuit | |||
928 | 7058176 | Cover structure for portable electronic device | |||
929 | 7050794 | User-assisted programmable appliance control | |||
930 | 7050783 | Accessory detection system | |||
931 | 7050767 | Mobile computing devices having rotationally exposed user interface devices | |||
932 | 7050577 | Programmable subscriber line circuit partitioned into high voltage interface and digital control subsections | |||
933 | 7050574 | Telephone line interface circuit and method | |||
934 | 7046983 | Integral board and module for power over LAN | |||
935 | 7046799 | Communication headset and method | |||
936 | 7046793 | Digital access arrangement circuitry and method having current ramping control of the hookswitch | |||
937 | 7046792 | Transmit/receive arbitrator | |||
938 | 7043224 | Communication apparatus | |||
939 | 7039183 | Termination block | |||
940 | 7039180 | Method and apparatus for enabling multiple protocol communication over a network | |||
941 | 7035665 | Portable terminal device and wireless communication terminal device | |||
942 | 7035402 | Portable communication unit | |||
943 | 7035400 | Signaling Techniques in channels with asymmetric powers and capacities | |||
944 | 7035399 | Network interface device (NID) with elliposoidial shape and stored cable reel and associated methods | |||
945 | 7031458 | Method and apparatus for isolation in a data access arrangement using analog encoded pulse signaling | |||
946 | 7031455 | Use of handset microphone to enhance speakerphone loudspeaker performance | |||
947 | 7027604 | Circuit to prevent acoustic feedback for a cellular speakerphone | |||
948 | 7027595 | Telecommunications apparatus and plug-in unit for same | |||
949 | 7027590 | Dynamic allocation of overhead voltage to support simultaneous transmission of signals on a telecommunication line | |||
950 | 7027589 | Single-ended loop test circuitry in a central office DSL modem | |||
951 | 7027562 | System and method to reduce echoes in voice communications | |||
952 | 7023975 | Privacy mode system and method for home network telephone | |||
953 | 7020276 | Frequency sensitive inductance device in POTS splitter design | |||
954 | 7020275 | Method and apparatus for spectral containment over telephone service lines | |||
955 | 7020274 | Universal apparatus and method for interfacing signals with telephony networks | |||
956 | 7016490 | Circuit board capacitor structure for forming a high voltage isolation barrier | |||
957 | 7016489 | System and method for performing echo cancellation for non-linearities | |||
958 | 7013007 | Computer telephony power supply method and apparatus | |||
959 | 7013000 | MTA intercom feature | |||
960 | 7010118 | Noise compensation methods and systems for increasing the clarity of voice communications | |||
961 | 7006625 | Cordless telephone-to-sound card interface adapter with hybrid transformer and control circuit | |||
962 | 7003103 | Mode-dependent, multiple bias-driven battery switch for subscriber line interface circuit | |||
963 | 7003100 | Modem with enhanced echo canceler | |||
964 | 6999583 | Crosstalk identification for spectrum management in broadband telecommunications systems | |||
965 | 6996232 | XDSL splitter line module for network interface device | |||
966 | 6993317 | Method and system for signal repeating in powerline communications | |||
967 | 6993126 | Apparatus and method for detecting far end speech | |||
968 | 6990192 | Combination telephone network interface device and cable TV splitter | |||
969 | 6985715 | Method and device for frequency translation in powerline communications | |||
970 | 6985714 | Communication system, communication terminal and communication method | |||
2005 | |||||
971 | 6963641 | Method and apparatus for providing variable attenuation to data signals in an XDSL frequency range | |||
972 | 6961553 | Bidirectional distributed amplifier | |||
973 | 6956943 | Method and apparatus for minimizing the telephony ring voltage power supply requirements of an integrated services hub | |||
974 | 6950511 | Detection of both voice and tones using Goertzel filters | |||
975 | 6931121 | Dual personality analog port | |||
976 | 6925178 | Returning ringing signals through the tip amplifier of subscriber-line interface circuitry | |||
977 | 6925176 | Method for enhancing the acoustic echo cancellation system using residual echo filter | |||
978 | 6925172 | Line interface with gain feedback coupled matching impedance | |||
979 | 6907122 | Rotational split adaptor | |||
980 | 6898281 | System and method for filtering echo/NEXT signal interferrence | |||
981 | 6888934 | Vehicle intercom system | |||
982 | 6879670 | Collective housing intercom apparatus | |||
983 | 6856685 | Feed arrangement for a subscriber loop with multi-level current regulation capability | |||
984 | 6845156 | System for reducing distortion in a line powered modulator | |||
2004 | |||||
985 | 6807261 | Digital key telephone set and digital key telephone system | |||
986 | 6801605 | Telephone network signal conversion system | |||
987 | 6798866 | System and method for verifying central office wiring associated with line sharing | |||
988 | 6795548 | Method and system for data communication | |||
989 | 6789145 | Interface for microprocessors and network facilities | |||
990 | 6782096 | Subscriber line driver and termination | |||
991 | 6778665 | Distribution of current draw in a line powered DAA | |||
992 | 6766022 | System for providing universal cross-connect connectivity in a central office | |||
993 | 6763109 | Copper based interface system and regulated power source | |||
994 | 6751315 | High bandwidth phone line transceiver with capacitor isolation | |||
995 | 6744888 | Line interface circuit with event detection signaling | |||
996 | 6738474 | System for providing pots splitters externally with respect to digital subscriber loop access multiplexers and remote terminal and central office equipment racks | |||
997 | 6711260 | Method and apparatus for spectral containment over telephone service lines | |||
998 | 6697358 | Emulation of phone extensions in a packet telephony distribution system | |||
999 | 6687361 | Electronic exchange and key telephone system | |||
2003 | |||||
1000 | 6661883 | Method and apparatus allowing remote key system units to interoperate | |||
1001 | 6647097 | Telephone system for voice recognition | |||
1002 | 6636748 | Method and apparatus for image capture, compression and transmission of a visual image over telephone or radio transmission system | |||
1003 | 6633631 | Digital key telephone system and extension terminal device thereof | |||
1004 | 6539085 | Automatic phone line re-allocation | |||
1005 | 6539084 | Intercom system | |||
2002 | |||||
1006 | 6496576 | Digital key telephone system and extension terminal device thereof | |||
1007 | 6469638 | Intra-vehicle communications system in a mining vehicle monitoring system | |||
1008 | 6459781 | Key telephone apparatus with call distribution function | |||
1009 | 6456705 | Digital key telephone system and extension terminal device thereof | |||
1010 | 6408060 | Digital key telephone system and extension terminal device thereof | |||
1011 | 6408008 | Circuit for attenuation of echos caused by line variations and an interfacing system for capacitively coupling a plurality of sources to a two-wire communication line | |||
1012 | 6396918 | Method for forwarding a call to a telephone behind a key telephone system | |||
1013 | 6377671 | Digital key telephone system and extension terminal device thereof | |||
1014 | 6373924 | Digital key telephone system and extension terminal device thereof | |||
2001 | |||||
1015 | 6311052 | PTT radio system | |||
1016 | 6263061 | Digital button telephone system and extension terminal for the same | |||
1017 | 6259905 | Method and apparatus to minimize dialing and connecting delays in a wireless local loop system | |||
1018 | 6188755 | Key telephone system having a plurality of telephone numbers to key telephone set | |||
1019 | 6185294 | Method and apparatus for installing telephone intercom-voice messaging apparatus at doorbell for dwelling | |||
1020 | 6175617 | Key telephone apparatus with [automatic] call distribution function | |||
2000 | |||||
1021 | 6154660 | Callee-based telephone line preselection | |||
1022 | 6128480 | Fixed subscriber unit for telecommunications | |||
1023 | 6125179 | Echo control device with quick response to sudden echo-path change | |||
1024 | 6122369 | Communication process device and method therefor | |||
1025 | 6118863 | Exchanging apparatus and control method for exchanging and connecting destination terminal and calling terminal, and communication terminal apparatus communicating with other terminals through communication network and control method | |||
1026 | 6088362 | Key telephone system without common control | |||
1027 | 6072826 | Key telephone system without common control | |||
1028 | 6052573 | Fixed subscriber unit of wireless local loop system | |||
1029 | 6046995 | Key telephone system without common control | |||
1999 | |||||
1030 | 6002776 | Directional acoustic signal processor and method therefor | |||
1031 | 5995604 | Method of preventing fraudulent toll calls by key system users | |||
1032 | 5995591 | Connecting arrangement for reducing induced noise | |||
1033 | 5991293 | Circuit arrangement for providing internet connectivity to a computer in a key telephone system | |||
1034 | 5987109 | Key telephone apparatus with call distribution function | |||
1035 | 5963627 | Communication terminal having function for displaying originator identification data | |||
1036 | 5937061 | Power saving control apparatus for simple electronic exchange system | |||
1037 | 5937046 | Method of selectively connecting a received telephone call by utilizing a calling party number in a keyphone system | |||
1038 | 5933482 | Method and apparatus for designating and making an automatic call for a pair of key telephone sets in a key telephone exchange system | |||
1039 | 5933479 | Remote service system | |||
1040 | 5930346 | Extended public switched telephone network architecture with enhanced subscriber control on call setup | |||
1041 | 5926532 | Integrated wireless communication system | |||
1042 | 5915014 | Communication system | |||
1043 | 5887054 | Play and plug telephone system | |||
1044 | 5881143 | Telephone line device | |||
1045 | 5872839 | Office line selecting technique of a telephone switching system | |||
1998 | |||||
1046 | 5801754 | Interactive theater network system | |||
1047 | 5799074 | Communication terminal having function for displaying originator identification data | |||
1048 | 5799067 | Smart phone integration with computer systems | |||
1049 | 5793855 | Integrated wireless communication system | |||
1050 | 5787115 | Key telephone system without common control | |||
1051 | 5784685 | Wireless intercom communication system and method of using same | |||
1052 | 5784446 | Method and apparatus for installing telephone intercom-voice messaging apparatus at doorbell for dwelling | |||
1053 | 5771277 | Elevator car modem with transhybrid rejection | |||
1054 | 5764743 | Method of controlling operation of a multi-line telephone apparatus | |||
1055 | 5761287 | Digital key telephone connecting apparatus and method in a digital key telephone system | |||
1056 | 5757898 | Information processing and communication apparatus | |||
1057 | 5754642 | Telephone terminal having multiple handsets | |||
1058 | 5754637 | Collective house interphone system and method therefore | |||
1059 | 5737390 | Digital exchange system with function of displaying operation state of system | |||
1060 | 5734707 | Telephone system | |||
1061 | 5732129 | Method of improving computer communication speed in key telephone system | |||
1062 | 5712909 | Key telephone apparatus with automatic call distribution function | |||
1997 | |||||
1063 | 5699419 | Analog multibutton telephone keysets | |||
1064 | 5694461 | Method for controlling long distance calling using a multi-frequency receiver | |||
1065 | 5694460 | Circuit and method for reducing common mode interference in telephone instruments | |||
1066 | 5687245 | Sampled chamber transducer with enhanced low frequency response | |||
1067 | 5682434 | Wearable audio system with enhanced performance | |||
1068 | 5666428 | Audio distribution system | |||
1069 | 5659603 | Method for printing key telephone designation strips | |||
1070 | 5655012 | Private branch exchange apparatus | |||
1071 | 5652788 | Key telephone apparatus | |||
1072 | 5651061 | Telephone exchange system | |||
1073 | 5649005 | PC with telephony exchange function | |||
1074 | 5644630 | Intercom system for a service establishment | |||
1075 | 5640448 | Key telephone system capable of simulation by button operations | |||
1996 | |||||
1076 | 5586176 | Integrated wireless communication system | |||
1077 | 5579380 | Method and apparatus for processing telephone calls from one line to another | |||
1078 | 5572586 | Communication control apparatus and method and communication exchange apparatus and method | |||
1079 | 5568542 | Building short circuit react system | |||
1080 | 5563938 | Subscriber telephone diverter switch | |||
1081 | 5557660 | Program-controlled communication system whereby a call request is simultaneously signaled at a plurality of communication terminal equipment | |||
1082 | 5550901 | Full-duplex adapter for PBX telephone system | |||
1083 | 5548592 | Home and small business phone system for operation on a single internal twisted pair line and methodology for operating the same | |||
1084 | 5546454 | Automatic call distributor with telephonic call holding system | |||
1085 | 5544235 | Identification of called directory number at multiple directory number per line premises prior to ringing signal reception | |||
1086 | 5544231 | Conversation recording/playback method in a key phone system | |||
1087 | 5537465 | Integrated telephone and intercom system | |||
1088 | 5517551 | Telephone apparatus with dial key display for external line status | |||
1089 | 5513256 | Key telephone system | |||
1090 | 5504809 | Communication system for use in a mine | |||
1091 | 5495529 | Digital sound level control apparatus | |||
1092 | 5490210 | Programmable telephone interface device | |||
1093 | 5483584 | Pushbutton telephone system | |||
1995 | |||||
1094 | 5471523 | Telephone call and voice processing system | |||
1095 | 5465292 | Trading telephone | |||
1096 | 5463676 | Key telephone system with a voice storage equipment | |||
1097 | 5455859 | Telephone handset interface for device having audio input | |||
1098 | 5440644 | Audio distribution system having programmable zoning features | |||
1099 | 5434797 | Audio communication system for a computer network | |||
1100 | 5390241 | Shared line appearance across a plurality of switching systems | |||
1101 | 5388152 | Key telephone system capable of regulating volume of handset | |||
1102 | 5381468 | Telephone exchange including less display elements than channels | |||
1103 | 5379280 | Conferencing system for distributed switching network | |||
1994 | |||||
1104 | 5365572 | Cordless key telephone system with multiple tenant facility | |||
1105 | 5363434 | Audio distribution system | |||
1106 | 5345510 | Integrated speaker supervision and alarm system | |||
1107 | 5339360 | Method of synchronizing LEDS between a digital telephone and remote options | |||
1108 | 5333182 | Arbitrary selecting of a terminal to be called in key telephone systems | |||
1109 | 5321848 | Drive-up station full duplex communication system and method of using same | |||
1110 | 5315639 | Hands-free intercom system | |||
1111 | 5309509 | Graphical user interface workstation | |||
1112 | 5309028 | Call coverage arrangement in an ISDN switching system | |||
1113 | 5303239 | Telephone system | |||
1993 | |||||
1114 | 5260992 | Key telephone system with reduction of delay of ring tone generation at telephone set | |||
1115 | 5251254 | Control of incoming and outgoing calls in a key system | |||
1116 | 5250942 | Equipment and method for management of terminal identification number in communication system | |||
1117 | 5224159 | Key telephone system provided with telephone sets connectable to add-on modules | |||
1118 | 5222126 | Communication apparatus connected to other communication terminals | |||
1119 | 5220597 | Dialing apparatus for power failure extension telephone set of key telephone system | |||
1120 | 5214691 | Key telephone system with virtual private lines | |||
1121 | 5204861 | Key telephone system with enhanced connectivity | |||
1122 | 5200990 | Method of recovering speech path of pre-engaged call on restarting keyphone exchange system | |||
1123 | 5195087 | Telephone system with monitor on hold feature | |||
1124 | 5187705 | Data error detecting apparatus for key telephone system and the detecting method therefor | |||
1992 | |||||
1125 | 5153908 | Automatic redial in a key telephone system having different line types | |||
1126 | 5151934 | Key telephone apparatus | |||
1127 | 5151933 | Key telephone system | |||
1128 | 5140628 | Radio telephone system control method | |||
1129 | 5138655 | Telephone apparatus capable of setting card unit therein | |||
1130 | 5136630 | Intrinsically safe telephone | |||
1131 | 5136585 | Digital key telephone system | |||
1132 | 5131048 | Audio distribution system | |||
1133 | 5128989 | Key telephone system with circuitry for adding a third caller to a multiple party connection | |||
1134 | 5117372 | Graphics-assisted terminal administration arrangement | |||
1135 | 5097501 | Key telephone interface | |||
1136 | 5090052 | Telephone system with multiple extension telephones | |||
1991 | |||||
1137 | 5077682 | Apparatus and method for displaying duration of a call made over a central office line in a keyphone system | |||
1138 | 5073923 | Private telephone system with unified command feature | |||
1139 | 5070524 | Telephone system | |||
1140 | 5062151 | Communication system | |||
1141 | 5048080 | Control and interface apparatus for telephone systems | |||
1142 | 5046086 | Page-mapped multi-line telephone communication system | |||
1143 | 5042065 | Resetting circuit in a key-telephone system | |||
1144 | 5040207 | Two-telephone intercom | |||
1145 | 5033081 | Key telephone system | |||
1146 | 5031210 | Telephone apparatus | |||
1147 | 5027347 | Intercom system | |||
1148 | 5027345 | Digital key telephone system | |||
1149 | 5027341 | Station line switching control system | |||
1150 | 5025441 | Key telephone system | |||
1151 | 5014302 | Telephone | |||
1152 | 4998275 | Multi-line telephone communications system | |||
1153 | 4996708 | Key telephone system adapted to respond to information stored in a portable outpulser | |||
1154 | 4995070 | Electronic key telephone set with function operation test function and method of controlling the same | |||
1155 | 4988209 | Telephone agent management information system | |||
1156 | 4987573 | Telephone system digital channel bank interface | |||
1157 | 4985915 | Method for interfacing between a key-phone system and a key-phone subscriber | |||
1158 | 4984263 | Break-in method in a key system | |||
1990 | |||||
1159 | 4953200 | Private branch exchange capable of discriminating different types of telephone sets connected thereto | |||
1160 | 4941187 | Intercom apparatus for integrating disparate audio sources for use in light aircraft or similar high noise environments | |||
1161 | 4935957 | Key telephone system | |||
1162 | 4932043 | Apparatus for controlling key telephone station set in key telephone system | |||
1163 | 4922526 | Automated access facilities for use with key telephone systems | |||
1164 | 4907259 | Call appearance reservation arrangement | |||
1165 | 4907258 | Key telephone apparatus | |||
1166 | 4905274 | Key telephone management system | |||
1167 | 4901344 | Telephone system digital channel bank interface | |||
1168 | 4897864 | Control method and appartus for a radio telephone system | |||
1169 | 4893310 | Digital key telephone system | |||
1989 | |||||
1170 | 4887293 | Trunk circuit with loop length gain equalization | |||
1171 | 4873718 | Feature telephone integration device | |||
1172 | 4856058 | Office line interface circuits | |||
1173 | 4850012 | Automated access facilities for use with key telephone systems | |||
1174 | 4850011 | Key telephone system providing selection of key or PBX operational modes | |||
1175 | 4831516 | Data transmission system between a main CPU board having a wait signal generating latch and a plurality of CPU boards | |||
1176 | 4827461 | Universal telecommunications audio coupling device | |||
1177 | 4823377 | System for setting registration mode for key telephone set | |||
1178 | 4821316 | Key telephone system | |||
1179 | 4817132 | Multi-line access module for telephone set | |||
1180 | 4805165 | Time division multiplex data transmission method and apparatus | |||
1181 | 4803718 | Hold detecting and control circuit for a key telephone system | |||
1182 | 4797915 | Communication system having automatic call route selection | |||
1988 | |||||
1183 | 4794641 | Data transmission system of key telephone system | |||
1184 | 4794640 | Switching control apparatus for intercom-telephone sets | |||
1185 | 4791662 | Controlling key-system groups from a distributed control switching system | |||
1186 | 4790004 | Implied principal busy status indicator for covered calls | |||
1187 | 4782514 | Key telephone system | |||
1188 | 4763354 | Key telephone system | |||
1189 | 4763348 | Controlled power supply for key telephone system | |||
1190 | 4759059 | Analog telephone circuit for digital telephone system | |||
1191 | 4759055 | Key telephone system | |||
1192 | 4757521 | Synchronization method and apparatus for a telephone switching system | |||
1193 | 4754477 | Key telephone system | |||
1194 | 4744103 | Computer controlled multi-link communication system | |||
1195 | 4741026 | Message signaling arrangement between a switching system and user terminals | |||
1196 | 4740957 | Asynchronous addressable electronic key telephone system | |||
1197 | 4731821 | Single wire telephone intercommunication system | |||
1198 | 4727578 | Telephone system | |||
1199 | 4726058 | Telephone conversion device | |||
1200 | 4726013 | Time division multiplex telecommunications system and method for a key telephone system or the like | |||
1987 | |||||
1201 | 4703416 | Apparatus for locating programs resident on a cartridge of a cartridge programmable communication system | |||
1202 | 4701948 | Communication system having separate unidirectional information signalling | |||
1203 | 4700379 | Aircraft communications apparatus | |||
1204 | 4696030 | Patient operator intercom arrangements for magnetic resonance imaging systems | |||
1205 | 4685123 | Communication system having voice and data capability | |||
1206 | 4682353 | Key telephone system | |||
1207 | 4679228 | Speakerphone sensing circuit | |||
1208 | 4665545 | Communication system having multi-mode line selection buttons | |||
1209 | 4660219 | Extension ringing arrangement key telephone system | |||
1210 | 4654870 | Telephone key systems and key stations therefor | |||
1211 | 4653090 | Graphics based call management | |||
1212 | 4650932 | Key telephone system | |||
1213 | 4646347 | Ringing signal reformatting circuit | |||
1214 | 4646289 | Signal multiplexing circuit | |||
1215 | 4641337 | Key telephone system with means for operatively connecting another key telephone systems | |||
1216 | 4638124 | Key telephone system with distributed control | |||
1217 | 4636585 | Telephone installations | |||
1986 | |||||
1218 | 4633043 | Apparatus for use with key telephone systems | |||
1219 | 4631367 | Multi-line telephone system | |||
1220 | 4631365 | Intercom system | |||
1221 | 4631364 | Communication system having dynamically assigned station set buttons | |||
1222 | 4629832 | Communication system administration method and circuitry | |||
1223 | 4628153 | Stand-alone keyphone system | |||
1224 | 4613904 | Television monitoring device | |||
1225 | 4608686 | Two wire voice and data subscriber loop | |||
1226 | 4607144 | Apparatus for enhancing the use of electromechanical key telephone systems | |||
1227 | 4605825 | Function key assignments in a key telephone system | |||
1228 | 4602132 | Key telephone system | |||
1229 | 4602128 | Automatic redialing arrangement for multi-line telephone station sets | |||
1230 | 4601064 | Communication system | |||
1231 | 4595800 | Key telephone system | |||
1232 | 4590331 | Hostage negotiation telephone system | |||
1233 | 4588865 | Music on hold for key systems | |||
1234 | 4588864 | Small key telephone system | |||
1235 | 4588861 | Telephone intercom system | |||
1236 | 4585908 | Data entry and display control circuit | |||
1237 | 4583221 | Synchronization system for key telephone system | |||
1238 | 4583214 | Key telephone transmission system | |||
1239 | 4572928 | Key telephone system | |||
1240 | 4570035 | Programmable key telephone system | |||
1241 | 4564726 | Pulse/direct current transmitting circuit in a key telephone system | |||
1242 | 4564724 | Terminal interface connecting terminal unit having central office line interface to key telephone system | |||
1985 | |||||
1243 | 4560837 | Call transfer method and circuitry | |||
1244 | 4559417 | Method of setting operating data in a key telephone system | |||
1245 | 4554413 | Key telephone system | |||
1246 | 4554411 | Intercom system | |||
1247 | 4551583 | Control signal transmission system for key telephone system | |||
1248 | 4546214 | Line use indicator for telephone sets sharing a single line | |||
1249 | 4544808 | Telephone indicator | |||
1250 | 4539437 | Stored program power control system for improving energy efficiency for telephone sets connected into a local telephone communications system | |||
1251 | 4538029 | Apparatus for use with key telephone system with wireless telephone device | |||
1252 | 4538028 | Apparatus for use with key telephone system with wireless telephone device | |||
1253 | 4536621 | Dual talk path key telephone | |||
1254 | 4536615 | Key telephone equipment and associated method | |||
1255 | 4523056 | Telephone including resistive array for dialing and system for using such telephone | |||
1256 | 4520235 | Electronic key telephone system | |||
1257 | 4517409 | Method for checking function states in key telephone system | |||
1258 | 4514597 | Control of a key telephone system using a pulse width modulated signal | |||
1259 | 4511767 | Key telephone system signalling and control arrangement | |||
1260 | 4511766 | Key telephone system signalling and control arrangement | |||
1261 | 4506346 | Programmable cartridge telephone communication system | |||
1262 | 4504702 | Additional line coupling circuit to an intercom telephone set | |||
1263 | 4503532 | Multipoint fiber optic junction terminal | |||
1264 | 4502138 | Synchronization system for key telephone system | |||
1265 | 4499338 | Key telephone system signalling and control arrangement | |||
1266 | 4491693 | Key telephone system and method of setting operating data in the key telephone system | |||
1984 | |||||
1267 | 4490820 | Reception system for key telephone system | |||
1268 | 4490583 | Plural line telephone controller | |||
1269 | 4488772 | Electro-optic indicating device | |||
1270 | 4479085 | Power source circuit | |||
1271 | 4446338 | Telephone lines status sensor | |||
1272 | 4445004 | Key telephone line circuit with improved hold circuit | |||
1273 | 4440989 | Key telephone area voice paging circuit and method | |||
1983 | |||||
1274 | 4412102 | Key telephone system | |||
1275 | 4410767 | Key telephone system | |||
1276 | 4401847 | Telephone communication system | |||
1277 | 4395596 | Multi-line controller | |||
1278 | 4394544 | Line circuit for multiple line telephone | |||
1279 | 4392024 | Electronic key telephone set circuit for permitting dialing during failure of commercial power supplied to the set | |||
1280 | 4383137 | Key telephone system with multiple processor control | |||
1281 | 4382163 | Microcomputer controlled key telephone line circuit | |||
1282 | 4377726 | Selective paging and intercommunication system | |||
1283 | 4376875 | Keyless and indicatorless local telephone switching system | |||
1284 | 4374308 | I-Use indication in a telephone keyset | |||
1982 | |||||
1285 | 4363936 | Telephone network including common equipment with message information and control information circuits for connecting to stations having multifunction telephones | |||
1286 | 4347409 | Key telephone system | |||
1287 | 4338495 | Electronic key telephone systems | |||
1288 | 4334126 | Control circuit for concurrently monitoring and controlling functions and frequency modulating status information in a digital data network | |||
1289 | 4329543 | Communication system | |||
1290 | 4327256 | Telephone system | |||
1291 | 4323735 | Key telephone line shunt detector circuit | |||
1292 | 4323734 | Interface circuit for telephone line to equipment signal coupling | |||
1293 | 4322581 | Multifunction telephone with message information and control information circuits for connecting stations and common equipment in a telephone network | |||
1294 | 4315110 | Multiple line telephone instrument | |||
1295 | 4314109 | Synchronization system for key telephone system | |||
1296 | 4309755 | Computer input/output arrangement for enabling a simultaneous read/write data transfer | |||
1981 | |||||
1297 | 4308427 | Hands-free talk-back intercommunication system | |||
1298 | 4292476 | Speech channel switching networks suitable for use in combination with electronic key telephone sets | |||
1299 | 4292475 | Expandable link telephone intercom system | |||
1300 | 4292474 | Electronic key telephone system with bi-directional serial data stream station control | |||
1301 | 4291199 | Communication system tracking arrangement | |||
1302 | 4280022 | Key telephone systems | |||
1303 | 4266103 | Key telephone exclusion circuit | |||
1304 | 4260857 | Office line connection circuit during service interruptions in key telephone apparatus | |||
1305 | 4254306 | Key telephone system | |||
1980 | |||||
1306 | 4236049 | Electronic key telephone system | |||
1307 | 4234765 | Key telephone system | |||
1308 | 4228324 | Key telephone system having interstation signalling during hold condition | |||
1309 | 4220827 | Telephone signaling circuit | |||
1310 | 4216356 | Telephone having separate voice and signaling pairs | |||
1311 | 4207439 | Line/interface circuit for key telephone systems | |||
1312 | 4203011 | Computer controlled key telephone station set | |||
1313 | 4196316 | Program controlled communication system having individually rearrangeable line selection | |||
1314 | 4194093 | Key system protective apparatus | |||
1315 | 4188511 | Multi-link telephone intercom system | |||
1316 | 4185173 | Key telephone call signalling circuit | |||
1317 | 4184054 | Key telephone system | |||
1979 | |||||
1318 | 4178480 | Signal multiplexing circuit | |||
1319 | 4174466 | Multi-party telephone system allowing speech connection between extensions as between extensions and an outer line | |||
1320 | 4173714 | Communication circuit with combined power feed and data transmission over a phantom channel | |||
1321 | 4171467 | Signal multiplexing circuit | |||
1322 | 4168403 | Key telephone system comprising only one control lead per outside line | |||
1323 | 4160131 | Electronic key telephone system | |||
1324 | 4158755 | Telephone system open switching interval protection circuit | |||
1325 | 4158112 | Hands-free answer arrangement on intercom for key telephone system | |||
1326 | 4158110 | Tone selective key telephone intercom system including digital tone detector | |||
1327 | 4150257 | Communication system call coverage arrangements | |||
1328 | 4145579 | Key telephone unit protective coupler | |||
1329 | 4136263 | Telephone system having space divided speech channels and a separate time divided data highway | |||
1330 | 4135063 | Modular, expandable intercom system for a multiple-station telephone subscriber installation | |||
1331 | 4132870 | Key telephone system optically coupled protective coupler | |||
1332 | 4132869 | Intercommunication system | |||
1333 | 4132860 | Hold control for a key telephone system | |||
1978 | |||||
1334 | 4130737 | Two-link intercom system | |||
1335 | 4125749 | Key telephone systems | |||
1336 | 4112261 | Key telephone system and method | |||
1337 | 4101741 | Line circuit for key telephone systems | |||
1338 | 4101740 | Line circuit for key telephone systems | |||
1339 | 4096358 | Key telephone system signal priority arrangement | |||
1340 | 4093830 | Key telephone system line circuit | |||
1341 | 4092501 | Key telephone system | |||
1342 | 4088846 | Hold-plus-intercom for single-line stations | |||
1343 | 4088844 | Telephone station set interface circuit | |||
1344 | 4087649 | Pulse counting circuit | |||
1345 | 4086444 | Dial pulse key telephone intercom system | |||
1346 | 4081625 | Control circuitry for key telephone apparatus | |||
1347 | 4081624 | Key telephone intercom line system | |||
1348 | 4081615 | Subset switching means in apparatus for a key telephone system for enabling intercom substations to access trunk lines | |||
1349 | 4080517 | Audio sensory apparatus and method for monitoring indicator lamp status of multi-line telephone instrument | |||
1350 | 4079212 | Extension telephone system | |||
1351 | 4075434 | Key telephone privacy exclusion apparatus | |||
1352 | 4071712 | Line circuit for key telephone systems | |||
1353 | 4071699 | Apparatus providing for the remote display of calling numbers in a telephone system | |||
1977 | |||||
1354 | 4064373 | Line circuit for key telephone systems | |||
1355 | 4064371 | Apparatus for a key telephone system for enabling intercom substations to access trunk lines | |||
1356 | 4063047 | Key telephone system multilink hands free answer circuit | |||
1357 | 4061887 | Key telephone adapter for electronic telephone switching system | |||
1358 | 4060700 | Two-party telephone system | |||
1359 | 4057693 | Logic control for electronic key telephone line circuit | |||
1360 | 4056695 | Key telephone line circuit tone-on-hold arrangement | |||
1361 | 4055731 | Key telephone lamp control circuit | |||
1362 | 4053720 | Automatic exclusion circuit | |||
1363 | 4052562 | System for control of speech direction in duplex telephone circuits | |||
1364 | 4046972 | Key telephone station set circuit | |||
1365 | 4039763 | Key telephone communication path interface | |||
1366 | 4039762 | Key telephone off-premises line circuit | |||
1367 | 4037058 | Intercom system for a key telephone system | |||
1368 | 4032724 | Direct station selection circuit | |||
1369 | 4024353 | Key telephone system | |||
1370 | 4022985 | Key telephone system with a common push-button sender system | |||
1371 | 4022976 | Mechanically-coupled microphone-speaker unit and intercom system | |||
1372 | 4021622 | Nonlocking key telephone set | |||
1373 | 4018997 | Pluggable key set telephone cross connect device | |||
1374 | 4016372 | Apparatus for a key telephone system for enabling intercom substations to access trunk lines | |||
1375 | 4011415 | Call circuit for key telephone system for giving direct station selection call priority over station call | |||
1376 | 4010332 | Link circuit for intercom unit | |||
1377 | 4010331 | Telephone intercommunication system incorporating improved dialing arrangement | |||
1378 | 4004106 | Line circuit for use with a key telephone system | |||
1379 | 4001517 | Direct station selection hold arrangement | |||
1976 | |||||
1380 | 4000376 | Telephone privacy device | |||
1381 | 3997738 | Line circuit for telecommunications exchange using TDM | |||
1382 | 3997737 | Security line card circuit | |||
1383 | 3995217 | Method and apparatus for suppressing background noise in a digital telephone system | |||
1384 | 3991282 | Multi station telephone switching system | |||
1385 | 3991281 | Key telephone monobus conference arrangement | |||
1386 | 3985976 | Audio frequency signalling systems for telephone systems | |||
1387 | 3985959 | Key telephone system for subscribers | |||
1388 | 3979563 | Communication systems of key telephone systems | |||
1389 | 3976847 | Key telephone system intercom arrangement | |||
1390 | 3973085 | Key telephone system with directly associated station cards and sets | |||
1391 | 3971899 | Signalling device for key telephone systems | |||
1392 | 3971898 | Visual indicating control circuit in key telephone system | |||
1393 | 3967076 | Call denial circuit for key telephone systems | |||
1394 | 3967072 | Time division network connection auditing arrangement | |||
1395 | 3965308 | Line card circuit | |||
1396 | 3963957 | Lamp power supply arrangement for key telephone system | |||
1397 | 3961144 | Exclusion circuit in key telephone system | |||
1398 | 3961142 | Method and apparatus for automatically annunciating the completion of a telephone call hold interval | |||
1399 | 3953683 | Interrupter for telephone systems | |||
1400 | 3952169 | Solid state line circuit for a key telephone system | |||
1401 | 3951248 | Telephone line visual status indication circuit | |||
1402 | 3946146 | Discrete ringing detector for use in key telephone systems | |||
1403 | 3943301 | Solid state four-wire switch for key telephones | |||
1404 | 3941944 | Signalling device for key telephone systems | |||
1405 | 3941943 | Privacy circuit for key telephone systems | |||
1406 | 3941933 | Paging intercommunication system | |||
1407 | 3937901 | Lamp control circuit for key telephone systems | |||
1408 | 3935396 | Key telephone system using time division and space division control | |||
1409 | 3934098 | Telephone message transfer circuit | |||
1410 | 3931479 | Telephone intercommunication system providing common access to a communication line | |||
1411 | 3931478 | Telephone intercommunication system provided with a common communication line to which access is guarded | |||
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017 |