СПИСОК патентов США - подгруппа МПК16 H04B1/50
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| № п/п | Номер патента | Название патента | |||
2017 | |||||
| 1 | 9595994 | Mode-based antenna tuning | |||
| 2 | 9577700 | Radio with asymmetrical directional antenna sub-arrays | |||
| 3 | 9559729 | Same-band combiner using dual-bandpass channel filters | |||
2016 | |||||
| 4 | 9525503 | Reconfigurable multi-mode transceiver | |||
| 5 | 9525462 | Data recovery of data symbols | |||
| 6 | 9520858 | Communication device | |||
| 7 | 9515696 | Method for half-duplex FDD operation in LTE FDD network | |||
| 8 | 9509364 | Integrated antenna unit with field replaceable frequency specific devices | |||
| 9 | 9485009 | Antenna system with high dynamic range amplifier for receive antenna elements | |||
| 10 | 9479322 | Wireless full-duplex system and method using sideband test signals | |||
| 11 | 9461682 | Method and system for filtering out adjacent frequency band interference | |||
| 12 | 9432112 | Mobile communication device and method for adaptive RF front-end tuning | |||
| 13 | 9420569 | Method and apparatus for transmitting control information | |||
| 14 | 9402280 | Methods and apparatus for receiver only tune away in multi-SIM devices | |||
| 15 | 9391667 | Cancellation of spurious responses from local oscillator cross-coupling | |||
| 16 | 9379760 | Radio frequency communication | |||
| 17 | 9374184 | Controlling of code block to physical layer mapping | |||
| 18 | 9374126 | Multiband on ground antenna with a dual radiator arrangement | |||
| 19 | 9374122 | Integrated on-chip duplexer for simultaneous wireless transmission | |||
| 20 | 9369156 | Multi-band multi-path receiving and transmitting device and method, and base station system | |||
| 21 | 9356644 | Wireless circuit and frequency pair determination method | |||
| 22 | 9350411 | Full duplex backhaul radio with MIMO antenna array | |||
| 23 | 9337884 | Medium access control method in single channel wireless network environment | |||
| 24 | 9313012 | Apparatus and methods for full duplex communication | |||
| 25 | 9252832 | High-frequency circuit and communication device | |||
| 26 | 9252739 | Module substrate and module | |||
| 27 | 9236897 | Software configurable distributed antenna system and method for bandwidth compression and transport of signals in noncontiguous frequency blocks | |||
2015 | |||||
| 28 | 9209748 | Frequency synthesis device and method | |||
| 29 | 9185727 | Access point for wireless LAN and medium access control method thereof | |||
| 30 | 9184782 | High-frequency module and communication device | |||
| 31 | 9178558 | Backhaul radio with horizontally or vertically arranged receive antenna arrays | |||
| 32 | 9166765 | High-frequency circuit module | |||
| 33 | 9148178 | Multi-band multi-path receiving and transmitting device and method, and base station system | |||
| 34 | 9143186 | Transceiver and communication device | |||
| 35 | 9130604 | Multi-band multi-path receiving and transmitting device and method, and base station system | |||
| 36 | 9124311 | Multi-band multi-path receiving and transmitting device and method, and base station system | |||
| 37 | 9113411 | Adaptive transceiver for utilizing white space spectrum in mobile application | |||
2014 | |||||
| 38 | 8879437 | Backward compatible LTE system design for asymmetric uplink/downlink spectrum | |||
| 39 | 8872601 | Circuit module including a duplexer mounted on a circuit substrate having a specified second ground path | |||
| 40 | 8872600 | High frequency circuit module with a filter disposed in a core layer of a circuit substrate | |||
| 41 | 8830010 | High frequency circuit module with a filter in a core layer of a circuit substrate | |||
| 42 | 8786384 | Self-matched band reject filter | |||
| 43 | 8723621 | Elastic wave device having pairs of filters that face each other | |||
| 44 | 8723619 | Filter arrangement having first and second duplex filters | |||
| 45 | 8625565 | Millimeter-wave communication station and method for multiple-access beamforming in a millimeter-wave communication network | |||
2013 | |||||
| 46 | 8611317 | Simultaneously maintaining bluetooth and 802.11 connections to increase data throughput | |||
| 47 | 8552816 | Multiband simultaneous transmission and reception front end architecture | |||
| 48 | 8520494 | Precoding method for reducing uplink PAPR and apparatus thereof | |||
| 49 | 8509711 | Wireless terminals, systems, and methods using interlaced diplexers | |||
| 50 | 8421554 | Filtering device for filtering RF signals and method for filtering RF signals | |||
| 51 | 8416034 | Signal splitting device and wireless communication device using the same | |||
2012 | |||||
| 52 | 8339216 | Duplexer and method for separating a transmit signal and a receive signal | |||
| 53 | 8264298 | Filtering device and a method for filtering a signal | |||
| 54 | 8174339 | Duplexer, substrate for duplexer, and electronic apparatus | |||
| 55 | 8150353 | Masthead amplifier unit | |||
2011 | |||||
| 56 | 7973608 | Phase locked loop, semiconductor device, and wireless tag | |||
2010 | |||||
| 57 | 7848711 | Radio communication apparatus and radio communication method | |||
| 58 | 7778611 | Radio communication apparatus and radio communication method | |||
| 59 | 7688158 | Digitally tuned, integrated baluns with enhanced linearity for multi-band radio applications | |||
2009 | |||||
| 60 | 7536152 | Information access system and active-type contactless information storage device | |||
2006 | |||||
| 61 | 7102446 | Phase lock loop with coarse control loop having frequency lock detector and device including same | |||
2005 | |||||
| 62 | 6961596 | Modular RF antenna and filter system for dual radio WLAN access points | |||
| 63 | 6959206 | Dual-duplexed, tower-top front-end for a radio transceiver system | |||
| 64 | 6950634 | Transceiver circuit arrangement and method | |||
| 65 | 6950410 | Frequency multiplexer | |||
| 66 | 6928298 | Mobile communication device and high-frequency composite unit used in the same | |||
| 67 | 6928276 | Signal reception circuit and communication device having the same | |||
| 68 | 6922402 | Mutual frequency locking across a link | |||
| 69 | 6917823 | Cellular telephone | |||
| 70 | 6915112 | Active cancellation tuning to reduce a wireless coupled transmit signal | |||
| 71 | 6912406 | Apparatus for multiple band communication | |||
| 72 | 6912377 | Leak power ratio detection circuit, mobile communication terminal, and control circuit for mobile communication terminal | |||
| 73 | 6912376 | Mobile phone transceiver | |||
| 74 | 6911942 | Antenna apparatus and communication apparatus using the same | |||
| 75 | 6907093 | Method and apparatus for relayed communication using band-pass signals for self-interference cancellation | |||
| 76 | 6892056 | Subscriber station with duplex antenna amplifier | |||
| 77 | 6889035 | Cable-less interconnect architecture for effecting blind coupling of diplexer to radio transceiver | |||
| 78 | 6885260 | Filter using film bulk acoustic resonator and transmission/reception switch | |||
| 79 | 6870442 | High-frequency device | |||
| 80 | 6861924 | Duplexer with improved transmission/receiving band separation | |||
| 81 | 6853835 | Asymmetric wireless communication system using two different radio technologies | |||
| 82 | 6850748 | RF front end with reduced carrier leakage | |||
| 83 | 6847269 | High-frequency module and wireless communication device | |||
| 84 | 6842629 | Arrangement in a radio system | |||
2004 | |||||
| 85 | 6829314 | Adapter for near end crosstalk and echo canceller for bi-directional digital communications | |||
| 86 | 6826234 | Radio communication apparatus and radio communication method | |||
| 87 | 6823178 | High-speed point-to-point modem-less microwave radio frequency link using direct frequency modulation | |||
| 88 | 6819943 | Spatial spectral efficiency for wireless rings and network of links in millimeter wave (MMW) communication systems | |||
| 89 | 6810239 | Automated transmitter combiner monitoring system and method of using same | |||
| 90 | 6795690 | Full-duplex transceiver with distributed duplexing function | |||
| 91 | 6785324 | Transceiver including reactive termination for enhanced cross-modulation performance and related methods | |||
| 92 | 6766149 | Mobile radio terminal and surface acoustic wave antenna duplexer | |||
| 93 | 6759925 | Radio-frequency hybrid switch module | |||
| 94 | 6756864 | Branching filter and communication apparatus | |||
| 95 | 6748197 | Single antenna for receipt of signals from multiple communications systems | |||
| 96 | 6745018 | Active cancellation of a wireless coupled transmit signal | |||
| 97 | 6738147 | Autostigmatic far field simulator | |||
| 98 | 6731101 | Modulation semiconductor integrated circuit device and testing method for oscillation circuit | |||
| 99 | 6724278 | Duplex filtering | |||
| 100 | 6721544 | Duplexer structure for coupling a transmitter and a receiver to a common antenna | |||
| 101 | 6721543 | Wireless terminal device | |||
| 102 | 6717980 | Reduction of transmitter induced cross modulation in a receiver | |||
| 103 | 6714098 | SAW antenna duplexer having a phase shifter with less than 50 ohm characteristic impedance | |||
| 104 | 6704349 | Method and apparatus for canceling a transmit signal spectrum in a receiver bandwidth | |||
| 105 | 6697603 | Digital repeater | |||
| 106 | 6693499 | Compact lumped element ring balun layout | |||
| 107 | 6683679 | Optical flow monitor | |||
2003 | |||||
| 108 | 6600385 | Front end module for mobile communications apparatus | |||
| 109 | 6591086 | Enhanced time division duplexing (TDD) transceiver circuitry | |||
| 110 | 6590475 | Filter, antenna duplexer, and communication apparatus incorporating the same | |||
| 111 | 6567649 | Method and apparatus for transmitter noise cancellation in an RF communications system | |||
| 112 | 6567648 | System combining radio frequency transmitter and receiver using circulator and method for canceling transmission signal thereof | |||
| 113 | 6567647 | Low noise radio frequency transceivers including circulators | |||
| 114 | 6559759 | Duplex communication apparatus for motor vehicle | |||
| 115 | 6556814 | Memory-based amplifier load adjust system | |||
| 116 | 6553210 | Single antenna for receipt of signals from multiple communications systems | |||
| 117 | 6539235 | Channel leakage power monitor apparatus and method | |||
| 118 | 6539204 | Analog active cancellation of a wireless coupled transmit signal | |||
| 119 | 6535748 | Wireless communication transceiver having a dual mode of operation | |||
| 120 | 6526264 | Wideband multi-protocol wireless radio transceiver system | |||
| 121 | 6525624 | Band-switchable surface acoustic wave antenna duplexer and mobile radio terminal | |||
| 122 | 6516183 | Method and apparatus for disturbance compensation of a direct conversion receiver in a full duplex transceiver | |||
| 123 | 6516023 | System and method of downconversion where the received signal is downconverted | |||
| 124 | 6512428 | Device for the simultaneous reception/transmission of signals comprising a low-noise amplifier | |||
| 125 | 6510308 | RECEPTION OF WEAK RADIO FREQUENCY SIGNAL IN THE PRESENCE OF A STRONG INTERNAL RADIO FREQUENCY INTERFERER--DEVICE AND METHOD FOR COMPENSATION OF AN INTERNAL INTERFERING SIGNAL BY A SUPERPOSITION METHOD | |||
| 126 | 6507728 | Radio transceiver and a method of preventing transmission spurious response | |||
| 127 | 6507651 | Hybrid amplifier | |||
2002 | |||||
| 128 | 6473596 | Close proximity transmitter interference limiting | |||
| 129 | 6472952 | Antenna duplexer circuit with a phase shifter on the receive side | |||
| 130 | 6470173 | Filter unit comprising a wideband bandpass filter and one band-elimination filter | |||
| 131 | 6445262 | Composite high frequency component and mobile communication apparatus incorporating the same | |||
| 132 | 6434122 | Filtering method to allow FDD and TDD operation in PCS transreceivers | |||
| 133 | 6426682 | Transceiver unit for a first and second transmitting/receiving frequency | |||
| 134 | 6408193 | Cellular telephone | |||
| 135 | 6393262 | Difference frequency impedance transformation circuits and methods for providing same in power amplifier systems | |||
| 136 | 6393259 | Amplifier circuit and transceiver | |||
| 137 | 6380823 | Antenna duplexer with receiving, transmitting, and antenna terminal groups separated planarly | |||
| 138 | 6373350 | Branching filter with saw-resonator transmitting and receiving filters in separate packages and receiving-branch lines in both packages | |||
| 139 | 6373349 | Reconfigurable diplexer for communications applications | |||
| 140 | 6366564 | Diplexer duplexer and two-channel mobile communications equipment | |||
| 141 | 6356536 | Protective and decoupling shunt switch at LNA input for TDMA/TDD transceivers | |||
| 142 | 6351628 | Antenna switching circuit | |||
2001 | |||||
| 143 | 6329949 | Transceiver stacked assembly | |||
| 144 | 6313713 | Matched pair circulator antenna isolation circuit | |||
| 145 | 6311045 | Apparatus for signal isolation in a radio transmitter-receiver | |||
| 146 | 6288620 | Antenna-duplexer and communication apparatus | |||
| 147 | 6259900 | Radio frequency signal folding-back transmitting/receiving circuit and radio transmitting/receiving apparatus for use therewith | |||
| 148 | 6256511 | Dual-mode radio architecture | |||
| 149 | 6256480 | Broadcast coupler | |||
| 150 | 6249670 | Signal combining device and method for radio communication | |||
| 151 | 6249195 | Dielectric filter, dielectric duplexer, and transceiver having circular and polygonal electrode openings | |||
| 152 | 6243564 | Dielectric filter having coupling windows between resonators, and transceiver using the dielectric filter | |||
| 153 | 6212367 | Mobile telephone apparatus with tunable filter tuned to the transmit band | |||
| 154 | 6212172 | Filtering method to allow FDD and TDD operation in PCS transreceivers | |||
| 155 | 6184759 | Dielectric filter having inductive coupling windows between resonators, and transceiver using the dielectric filter | |||
| 156 | 6178312 | Mechanism for automatically tuning transceiver frequency synthesizer to frequency of transmit/receiver filter | |||
| 157 | 6177850 | Two frequency filter comprising an inductance device, a resonator, and a switching device | |||
| 158 | 6169912 | RF front-end with signal cancellation using receiver signal to eliminate duplexer for a cordless phone | |||
2000 | |||||
| 159 | 6141539 | Isolation improvement circuit for a dual-polarization antenna | |||
| 160 | 6130897 | Time division multiple access FDD/TDD dual mode radio and a time division multiple access TDD dual band system | |||
| 161 | 6128474 | Test circuit of base station for mobile radio communication system | |||
| 162 | 6122489 | Dielectric filter having capacitive coupling windows between resonators, and transceiver using the dielectric filter | |||
| 163 | 6122488 | Method and apparatus for increasing an output impedance of a transmit amplifier during receive mode of a two-way communication unit | |||
| 164 | 6115592 | Filter device and dual-band radio system in which the filter device is used | |||
| 165 | 6115585 | Antenna switching circuits for radio telephones | |||
| 166 | 6112059 | Off-channel leakage power monitor apparatus and method | |||
| 167 | 6108313 | Transmitter/receiver for use in multichannel time division duplexing system providing isolation between transmission channels and reception channels | |||
| 168 | 6087998 | Duplex antenna circuit assembly selectively operational in a transmit or a receive mode | |||
| 169 | 6075975 | Dielectric filter having pairs of capacitive coupling windows between resonators and transceiver using the dielectric filter | |||
| 170 | 6067448 | System and method for isolating radio frequency signals | |||
| 171 | 6060960 | Duplexer comprising a SAW filter disposed on a multi-layer substrate | |||
| 172 | 6041219 | Integrated orthogonal mode transducer/filter design for microwave frequency-domain | |||
| 173 | 6026281 | Dielectric filter having coupling windows between resonators, and transceiver using the dielectric filter | |||
| 174 | 6023609 | Device for separating transmitting waves and receiving waves and a radio communication equipment provided with the device | |||
| 175 | 6014551 | Arrangement for transmitting and receiving radio frequency signal at two frequency bands | |||
| 176 | 6011959 | Combiner circuit for dual band voltage controlled oscillators | |||
| 177 | 6011952 | Self-interference cancellation for relayed communication networks | |||
1999 | |||||
| 178 | 6005455 | Integrated filter | |||
| 179 | 5999824 | Radio signal processing apparatus of portable telephone for sharing digital/analog compatible mode and personal communication service mode | |||
| 180 | 5974301 | Frequency cancelling system and method | |||
| 181 | 5963854 | Antenna amplifier | |||
| 182 | 5963587 | Wideband transceiver | |||
| 183 | 5945882 | Synchronizing method of distributed reference oscillation systems and reference oscillation generation apparatus | |||
| 184 | 5915212 | System and method for achieving extended radio coverage and additional capacity using extended frequency bands | |||
| 185 | 5912798 | Dielectric ceramic filter | |||
| 186 | 5910731 | Front end interface circuit and method of tuning the same | |||
| 187 | 5881054 | Frequency division duplex transmitter which attenuates the difference between a receiving frequency an output frequency from a second oscillator | |||
1998 | |||||
| 188 | 5818298 | Linear amplifying apparatus using coupled non-linear amplifiers | |||
| 189 | 5815804 | Dual-band filter network | |||
| 190 | 5815803 | Wideband high isolation circulatior network | |||
| 191 | 5797084 | Radio communication equipment | |||
| 192 | 5778025 | Transmitting-receiving circuit | |||
| 193 | 5771444 | Waste energy control and management in power amplifiers | |||
| 194 | 5768691 | Antenna switching circuits for radio telephones | |||
| 195 | 5737696 | Dielectric filter having inductive coupling windows between resonators and transceiver using the dielectric filter | |||
| 196 | 5732329 | Radio transmitter/receiver | |||
| 197 | 5732325 | Waste energy control and management in power amplifiers | |||
| 198 | 5729829 | Interference mitigation method and apparatus for multiple collocated transceivers | |||
| 199 | 5715520 | Frequency offset method and apparatus for use in a transceiver | |||
1997 | |||||
| 200 | 5701595 | Half duplex RF transceiver having low transmit path signal loss | |||
| 201 | 5701594 | Transmitter/receiver for a TDMA system using common IF SAW filter | |||
| 202 | 5691978 | Self-cancelling full-duplex RF communication system | |||
| 203 | 5689817 | RF duplexer bypassing techniques for transceivers | |||
| 204 | 5659886 | Digital mobile transceiver with phase adjusting strip lines connecting to a common antenna | |||
| 205 | 5638024 | Waste energy control and management in power amplifiers | |||
| 206 | 5634203 | Adaptive multi-receiver shared antenna matching system and method | |||
| 207 | 5631604 | Waste energy control and management in power amplifiers | |||
| 208 | 5630223 | Adaptive method and apparatus for eliminating interference between radio transceivers | |||
| 209 | 5625894 | Switch filter having selectively interconnected filter stages and ports | |||
1996 | |||||
| 210 | 5574985 | Radio transmitter receiver for operation in plural radio systems having unequal bands of operating frequencies represented by channel numbers | |||
| 211 | 5574978 | Interference cancellation system and radio system for multiple radios on a small platform | |||
| 212 | 5574967 | Waste energy control and management in power amplifiers | |||
| 213 | 5568088 | Waste energy control and management in power amplifier | |||
| 214 | 5561406 | Duplexer package | |||
| 215 | 5554960 | Branching filter, branching filter module and radio commnication apparatus | |||
| 216 | 5535433 | Hands-free circuitry providing audio signal adjustment based on speaker volume value | |||
| 217 | 5535430 | Mobile communication terminal equipment usable for both satellite and terrestrial communications | |||
| 218 | 5521561 | Arrangement for separating transmission and reception | |||
| 219 | 5519887 | Switchable filter phase-locked loop frequency synthesizer device and method for achieving dual-mode cellular communications | |||
| 220 | 5515017 | Selectable frequency dielectric filter having a ganged relation output switch | |||
| 221 | 5493701 | Frequency-modulated transceiver having a third mixer for generating an outermediate-frequency local oscillator signal from modulated output signal of a high frequency oscillator | |||
| 222 | 5486797 | Integrated port selection circuit for high frequency signal | |||
1995 | |||||
| 223 | 5477532 | Radio transceiver | |||
| 224 | 5473295 | Saw notch filter for improving stop-band attenuation of a duplex filter | |||
| 225 | 5446464 | Transceiver module | |||
| 226 | 5444864 | Method and apparatus for cancelling in-band energy leakage from transmitter to receiver | |||
| 227 | 5428831 | Signal path length correlator and method and an interference cancellation system using the same | |||
| 228 | 5423076 | Superheterodyne tranceiver with bilateral first mixer and dual phase locked loop frequency control | |||
| 229 | 5386203 | Antenna coupler | |||
| 230 | 5379011 | Surface mount ceramic filter duplexer having reduced input/output coupling and adjustable high-side transmission zeroes | |||
1994 | |||||
| 231 | 5369782 | Radio relay system, including interference signal cancellation | |||
| 232 | 5349694 | Radio relay system with a multiplex separation circuit and control for providing time delay multiplex operation of receiver and transmitter | |||
| 233 | 5335364 | Circuit arrangement for automatic frequency control in a radio telephone | |||
| 234 | 5327582 | Wideband wireless communications receiver | |||
| 235 | 5289199 | Antenna resonant circuit | |||
| 236 | 5276914 | Dual-mode transceiver that switches out a large insertion loss filter during transmission | |||
1993 | |||||
| 237 | 5267297 | Base station for a radio communication system | |||
| 238 | 5267234 | Radio transceiver with duplex and notch filter | |||
| 239 | 5263055 | Apparatus and method for reducing harmonic interference generated by a clock signal | |||
| 240 | 5241693 | Single-block filter for antenna duplexing and antenna-switched diversity | |||
| 241 | 5239689 | Transmitter/receiver apparatus with common oscillator that changes frequency between transmitting and received operations | |||
| 242 | 5239688 | Multi-range, multi-use antenna adapter | |||
| 243 | 5216378 | Switch adaptable radio frequency amplifier | |||
| 244 | 5201064 | Multiple-line superheterodyne transmission and reception device | |||
1992 | |||||
| 245 | 5168282 | Antenna resonant circuit | |||
| 246 | 5155724 | Dual mode diplexer/multiplexer | |||
| 247 | 5140699 | Detector DC offset compensator | |||
| 248 | 5109541 | Car-mounted type booster system for hand-held phone | |||
| 249 | 5109536 | Single-block filter for antenna duplexing and antenna-summed diversity | |||
1991 | |||||
| 250 | 4991165 | Digital adaptive interference canceller | |||
1990 | |||||
| 251 | 4980660 | Antenna sharing apparatus for switchable transmit/receive filters | |||
| 252 | 4968967 | Continuously transmitting and receiving radar | |||
| 253 | 4952193 | Interference cancelling system and method | |||
| 254 | 4918685 | Transceiver arrangement for full-duplex data transmission comprising an echo canceller and provisions for testing the arrangement | |||
| 255 | 4907291 | Transmitter/receiver apparatus | |||
| 256 | 4907219 | Duplex communication wireless | |||
| 257 | 4893317 | Digital signals and frequency correction in a digital wireless system | |||
1989 | |||||
| 258 | 4881240 | AM equalizer circuit for digital systems | |||
| 259 | 4868874 | Echo canceller | |||
| 260 | 4864634 | Radio communication apparatus free from interference between local signal and transmission signal | |||
| 261 | 4850034 | Method and apparatus for installing a cellular telephone in a vehicle | |||
| 262 | 4825448 | Subscriber unit for wireless digital telephone system | |||
1988 | |||||
| 263 | 4792939 | Duplex radio communication transceiver | |||
| 264 | 4761821 | Radio frequency signal transmission system with carrier frequencies at opposite edges of the channel | |||
| 265 | 4759078 | Coordinated local oscillator receiving system | |||
1987 | |||||
| 266 | 4691313 | Wireless talking apparatus | |||
| 267 | 4685099 | Method and apparatus for duplex communications | |||
| 268 | 4670889 | Frequency control for point to multipoint radio | |||
| 269 | 4660042 | Cancellation system for transmitter interference with nearby receiver | |||
1986 | |||||
| 270 | 4633511 | Signal transmission and reception system | |||
| 271 | 4627099 | Communication apparatus for transmitting and receiving signals on different frequency bands | |||
1985 | |||||
| 272 | 4542531 | Radio transmitter/receivers with non interferring local oscillator frequency | |||
| 273 | 4535476 | Offset geometry, interference canceling receiver | |||
| 274 | 4510595 | Modified time-division transmission technique for digital mobile radio systems | |||
| 275 | 4493111 | Electronic antenna decoupling process and device | |||
1984 | |||||
| 276 | 4489413 | Apparatus for controlling the receive and transmit frequency of a transceiver | |||
| 277 | 4476575 | Radio transceiver | |||
| 278 | 4475246 | Simulcast same frequency repeater system | |||
| 279 | 4462098 | Radio frequency signal combining/sorting apparatus | |||
| 280 | 4430756 | Oscillator control circuit | |||
1983 | |||||
| 281 | 4394775 | Frequency division communication system wherein conventional transmitter-transceiver can be used as a repeater or local base station | |||
1982 | |||||
| 282 | 4325140 | Full duplex communication system apparatus using frequency selective limiters | |||
| 283 | 4319222 | Transmitter apparatus for an information transmission system | |||
1981 | |||||
| 284 | 4288868 | Satellite communication system for speech and telegraphy | |||
| 285 | 4246582 | Full duplex transceiver comprising hybrid coil and automatic impedance adjustment means | |||
1980 | |||||
| 286 | 4232390 | Mobile radio vehicle control system | |||
| 287 | 4231116 | Radio station system | |||
| 288 | 4229827 | Single voltage controlled oscillator modem | |||
| 289 | 4212013 | Duplex-transmitter receiver arrangement | |||
| 290 | 4208630 | Narrow band paging or control radio system | |||
| 291 | 4186344 | Frequency converter | |||
1979 | |||||
| 292 | 4155039 | Two-way transmission system between a main station and secondary stations | |||
| 293 | 4153884 | Frequency synthesizer for transmitter/receiver using a phase locked loop | |||
| 294 | 4147980 | Redundant RF system for space application | |||
1978 | |||||
| 295 | 4131849 | Two-way mobile radio voice/data shared communications system | |||
| 296 | 4097805 | Frequency-synthesizer type transceiver | |||
| 297 | 4087751 | Transmitter-receiver circuit | |||
1977 | |||||
| 298 | 4061974 | Ultra stable frequency distribution system | |||
| 299 | 4061973 | Synthesizer | |||
| 300 | 4051475 | Radio receiver isolation system | |||
| 301 | 4011410 | Communication system interface circuits | |||
1976 | |||||
| 302 | 3973089 | Adaptive hybrid circuit | |||
| 303 | 3965447 | Synthetic reactor circuit | |||
| 304 | 3962553 | Portable telephone system having a battery saver feature | |||
| 305 | 3935533 | Single oscillator microwave transceiver | |||
| 306 | 3931575 | Filter stabilized single oscillator transceivers | |||
| © 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017 | |||||