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2016

19444506Waterproof case
29300774Mobile terminal and its case with hall IC driving shield magnet
39282177Caller ID surfing

2015

49083787Apparatus and method for driving communication terminal using proximity sensor for dialing

2014

58867078Operation device and operation method

2013

68437804Mobile phone and dialing method thereof

2012

78107606Method for initiating a connection between communication devices of at least two parties

2007

87212626Information terminal capable of originating a call, method of originating a call and recording medium which stores the program for originating a call
97162025Conference call dialing

2006

107102620Mobile electronic device
117072460System and method for retrieving telephone numbers
127043010Smart phonebook search

2005

136940974Systems and methods for generating tones for operating telephones
146940964Push-button signal receiving circuit and a method of detecting a push-button signal
156917822Mobile radio terminal, and method for displaying data in mobile radio terminal
166914978Pulse dialing system for VoIP modem
176873701System and method for DTMF detection using likelihood ratios

2004

186813504Dialing using indirect addressing methods
196807260Telephone line management and environmental information monitoring system
206778658Digital dialed digit unlock method and system
216778657Analog dialed digit unlock method and system
226771767Signal detector with coefficient swapping transform unit
236763106Signal detector with duration-based frame width
246735457Automatic number capture
256707895Telephone line management system

2003

266671369Method and apparatus for returning a false special information tone for an incoming telephone call
276668057Apparatus for receiving tone signal, apparatus for transmitting tone signal, and apparatus for transmitting or receiving tone signal
286650627Tone detection in communication networks
296576826Tone generation apparatus and method for simulating tone effect imparted by damper pedal
306546091Automatic detection of phone system settings for dial-up modem connections
316519338Tone burst generator and its application to telephony

2002

326459912Menu system for a radiotransmission apparatus
336445790Digital tone generator
346424648Method and apparatus for making a phone call connection over an internet connection
356424647Method and apparatus for making a phone call connection over an internet connection
366400931Card-like wireless communication device
376400821Digital tone generator
386373835Method and apparatus for making a phone call connection over an internet connection
396366669System and method for providing universal access to interactive voice response systems
406359838Keypad arrangement for a watch radiotelephone
416339700Dial device for steering wheel of an automobile

2001

426314179Externally dialed hand-free operator for cellular phones
436259931Controlling a communication device with dual-mode telecommunications signaling
446252533Data conversion device
456243460Telephone with character keypad
466243376Method and apparatus for making a phone call connection over the internet connection

2000

476115465System and method for modifying voice signals to avoid triggering tone detectors
486111948Dialer for selecting a character
496101401Wireless telephone dialing method
506075850Flash-hook Caller ID
516052573Fixed subscriber unit of wireless local loop system

1999

525982855Automatic telephone answering apparatus
535963629Method for embodying automatic call in a keyphone system
545937030Off-hook signal and dial pulse generating circuit and a method for driving the same circuit
555930338Method for handling incoming calls on a pots telephone line to a user's premises
565878131Interference attenuation for acoustic-dialers
575859913Method and system for the high-speed generation and transmission of a sequence of characters by means of voice frequencies
585859905Cycle-modulating type of dual-tone multifrequency generator

1998

595832075Off-hook detector for headset
605818929Method and apparatus for DTMF detection
615781626Communication device capable of controlling transmission parameters of outputted DTMF signals
625706341Active digit cancelling parallel dialer
635706340Telephone apparatus including circuit for producing dial data from serial key data

1997

645638437Telecommunication system and method enabling a user to get access to an automated call processing from a central station operating on pulse dialling mode
655633862DTMF signal transmission method in single frequency simultaneous transmitting and receiving system and single frequency simultaneous transmitting and receiving system transceiver capable of transmitting DTMF signal
665602914Device for limiting the working voltage for mechanical switches in telephony

1996

675563938Subscriber telephone diverter switch
685550907Personal communication using intelligent terminals
695541989Method and apparatus for detecting added keyboard functions
705539812Method and apparatus for detecting an attempted three-way conference call on a remote telephone
715522089Personal digital assistant module adapted for initiating telephone communications through DTMF dialing
725521967Method for monitoring telephone call progress
735508978Telephone on which the number called is composed by a crown of the horological type
745490214Method and apparatus for selectively generating control signals in a telephone system

1995

755465090Key pad shielding device and method
765448636Device for limiting the working voltage mechanical switches in telephony
775444775Telephone key selection aid
785438618Vocal frequency suppression apparatus and method
795428674Communication terminal device and dialing key
805425096Communication device
815412588Digital sine-wave generating circuit
825400398Electronic telephone set with low power hook switch
835388154Alphabetic telephone dialer apparatus and method
845384842Programmable telephone
855384837Line switch control circuit arrangement for telephone subset
865384807ADPCM transcoder with integral tone generation and method therefor

1994

875369697Method and apparatus for automatically switching between pulse code and DTMF signals generated by a telephone
885329580Communication terminal adaptor
895325425Method for monitoring telephone call progress
905319702Method and apparatus for detecting and responding to hook flash events occurring on a remote telephone
915317634Telephone subset arrangement
925307403Telephone branch line transmission circuit with blocking capacitor
935280522Circuit for transmitting voice signals and dial pulses

1993

945266950Programmable keypad monitor
955241591Telephone system having a dial data changeover switch
965235635Keypad monitor with keypad activity-based activation
975228079Method and apparatus for pulse/tone detection and selection
985220601Keypad status reporting system
995208852Sound generation circuit
1005191606Electrical telephone speech network

1992

1015157720Dialler chip mode signal
1025128991Dialing confirmation tone output apparatus
1035121425Telephone transmission circuit with improved switching device
1045121350Digital tone generation based on difference equations
1055105461Telephone line interface circuit
1065101429Electronic telephone set

1991

1075034977Phase accumulation dual tone multiple frequency generator
1085027389Self-compensated dual tone multiple frequency generator
1095023906Method for monitoring telephone call progress
1105003580Adapter for interfacing a work station terminal to a key telephone system
1114998276Dial signal generator for generating dial pulse signal and dual tone multi-frequency signal

1990

1124980585Method and apparatus for synthesizing digital waveforms
1134975949Electronic headset telephone
1144947423Communication apparatus with facilities for changing to a pulse or dial mode
1154939470Circuit for generating dual-tone multi-frequency signals and high/low-tone signals
1164924493Method for monitoring call setup communications
1174922527Small electronic apparatus
1184916732Communication system having telephonic function
1194896060Dialer with internal option select circuit programmed with externally hardwired address

1989

1204887295Telephone instrument
1214864604Electronic wristwatch having dialing tone generator
1224860342Computer-telephone interface method and apparatus
1234852156Private telephone system using a personal code number to access the telephone nearest to the code number holder
1244847886Method for causing large numbers of telephones to dial the same telephone numbers
1254841568Circuit arrangement for a telephone station with earth connection to the central supply device
1264817136Telephone dialing system
1274815126Telephone line switch
1284809322Circuit arrangement for a telephone station with ground connection
1294803437Digital transmission system
1304800585Saturating bipolar switch circuit for telephone dial pulsing

1988

1314788709Facsimile communication terminal with memo pattern memory
1324782520Pulse receiver circuit providing longitudinal balance
1334776008Key-in sound-generating circuit
1344771450Method and apparatus for converting rotary signals to audiofrequency signals
1354769836Dialing tone generator employing low frequency oscillator
1364756021Telephone set
1374741031Intrinsically safe telephone
1384731830Nonsaturating interface supply
1394727571Circuit for surge voltage protection in electronic telephone stations
1404727570Waveform generators
1414723267Telephone line interface and dialer circuitry for telecommunications equipment

1987

1424700385Remote telephone control apparatus
1434697140Semiconductor integrated circuit having a test circuit for testing an internal circuit
1444695804Apparatus for generating a multi-frequency signal
1454675902High performance telephone instrument with combination pulse and tone dialing capacity
1464639554Dual-tone multiple-frequency-signal generating apparatus
1474636590Method and apparatus for converting frequency signals representing characters to binary code
1484634814Surge protected electronic switch for telephone voiceband circuits

1986

1494618742Method and apparatus for decoding audiofrequency information sent through rotary dialing
1504614845Telephone hookswitch flasher
1514614843Arrangement for opening the loop for a well-defined time interval from a telephone set
1524613730Electronic telephone with feature access and speed dialing including loop breaks
1534598174Circuit for detecting keypad conditions in a microprocessor controlled telephone instrument
1544585909Transmission circuit for a DTMF-telephone set
1554571462Multiple use digital tone generator in telephone
1564567329Line circuit for network junctor
1574563548Method and circuit for telephone dialing signal generation

1985

1584558183Opto-coupler interfacing circuit
1594555597Transient resistant key operated pulse generating calling device circuit
1604550226Subscriber's telephone circuit arranged to present constant impedance to a telephone line
1614539552Digital-to-analog converter
1624532380Tone signalling adapter for a telephone set
1634527016Current regulated pulse dialer with memory retention circuit
1644523056Telephone including resistive array for dialing and system for using such telephone
1654508938Push-button dial for a telephone
1664501932Solid state electronic dial pulse receiver circuit
1674492927Offset voltage compensation circuit
1684492823Dual timing circuit for telephone subscriber's instrument

1984

1694489310Time slot-controlling circuit for keyboard switch module, and apparatus incorporating same
1704475012Subscriber telephone set incorporating overvoltage protection
1714472601Control circuit for telephone receiver and transmitter
1724471170Non-integer programmable counter
1734446436Circuit for generating analog signals
1744442322Electronic common switch having an improved receiver mating arrangement
1754431870Telephone system with computer generated dial pad and automatic dialing

1983

1764419543Tone activated hold circuit
1774413159Dial pulsing circuit
1784406926Telephone station circuit using digital tone generation
1794394743Tone generation method and apparatus using stored reference calibration coefficients
1804390754Tone generator circuit
1814390753Line interruption arrangement
1824388499Line interruption circuit for use in a telephone set
1834387274Hook flash signal actuated telephone control device
1844375583Indirectly activatable telephone system
1854368432Sine wave generator for different frequencies
1864367375Push-button dial circuit

1982

1874360710Telephone circuit
1884357496Keypad logic interface circuit
1894355210Sub-miniature tone encoder with automatic number identification
1904352958Electronically-switched multifrequency generator with transducer control
1914349704Digital multifrequency signal generator
1924349701Television receiver with two-way telephone conversation and dial-out capabilities
1934338492Television receiver with two-way telephone conversation capability
1944332984Active speech network circuit for a telephone set
1954329546Interface unit for pushbutton selector
1964327255Keypad caller for a telephone set
1974322582Liquid-sealed type of a governor for telephone dial
1984315108Integrated circuit chip telephone communication system
1994313037Telephone station set with improved flash signalling

1981

2004306190Plural frequency signal generator
2014306119Telephone outpulsing circuit
2024286120Current regulated pulse dialer circuit
2034281220Telephone dialing and answering device
2044267409Keyboard decade digital dial
2054251693Fixed impulse generator for hook switch flash

1980

2064233475Telephone station with automatic switch-over between pulse code dialling and multifrequency code dialling
2074223186Circuit arrangement for line-supplied subscriber stations having dial devices
2084199666Straight line telephone dialer
2094196318Electronically-switched multifrequency generator for providing tone signaling

1979

2104167827Telephone set with rotary dial
2114167655Push button to rotary dial converter systems
2124156115Apparatus and method for a multiple tone code sender system for automatic call initiation
2134144413Rotary telephone dial
2144142184Digital multitone generator for telephone dialing
2154133983Electronic network for telephone set
2164132871Digitally synthesized multi-frequency signal generator

1978

2174110568Dual tone multifrequency generator
2184110567Multi-frequency generator using digital technique
2194088837Combination telephone and calculator with common keyboard having reversible indicia
2204086440Telephone set with loop current interruption timing control
2214081623Sight operated telephone and machine controller
2224081619Switching arrangement for telecommunication subscriber stations using key-operated selection units
2234068178Variable frequency waveform synthesizer

1977

2244061887Key telephone adapter for electronic telephone switching system
2254061886Dual tone multiple frequency generator
2264058805Digital multitone generator for telephone dialing
2274056692Digital tone generator
2284046971Switching arrangement for telephone subsets using impulse-type pushbutton calling
2294025865Frequency-signalling circuit for a telephone
2304024347Telephone calculator
2314017693Synthesizer of multifrequency code signals
2324010454Magnetic bubble signal generator
2334008380Telephone conversion unit with multiple memory system
2344008379Touch-pad to dial conversion unit
2354007459Multitone pushbutton dial phase shift scanning circuitry

1976

2364000379Tone generator
2373999049Synthesizer of multifrequency code signals
2383988549Keyboard type telephone station adapted to transmit dialling pulses and multifrequency signals
2393985966Method and apparatus for generating digital dual frequency signals
2403982079Touch-to-rotary converter for a telephone instrument
2413982078Line matching circuit for use in a tone pushbutton dialling subscriber's set provided with a tone generator
2423980837Apparatus for pulsing in telephone sets
2433978295Circuit arrangement for a tone pushbutton selection telephone subscriber set
2443973084Electric impulse transmitters for telephone instruments
2453971896Two-tone generator using switching transistors in LC resonant circuits controlled by push-button
2463969592Pushbutton-controlled call-number selector for dial-equipped telephone
2473959604Digital calling signal tone generating circuitry
2483956596Circuit arrangements in telephone apparatus
2493941942Two of eight tone encoder
2503932707Electric impulse transmitters for telephone instruments
© 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017