СПИСОК патентов США - подгруппа МПК16 H04B1/30
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| № п/п | Номер патента | Название патента | |||
2017 | |||||
| 1 | 9608569 | Linearizing scheme for baseband filter with active feedback | |||
| 2 | 9595991 | Low power radio receiver | |||
| 3 | 9577689 | Apparatus and methods for wide bandwidth analog-to-digital conversion of quadrature receive signals | |||
| 4 | 9543997 | System and method for a mixer | |||
2016 | |||||
| 5 | 9509355 | Calibration of quadrature imbalance via loopback phase shifts | |||
| 6 | 9509354 | Homodyne receiver with improved linearity | |||
| 7 | 9496840 | Radio receiver | |||
| 8 | 9491646 | Measuring device and a method for measuring a signal with several component signals | |||
| 9 | 9491013 | Device and method for removing direct current offset using randomized control pulse | |||
| 10 | 9490858 | Transmitter capable of reducing local oscillation leakage and in-phase/quadrature-phase (I/Q) mismatch and adjusting methods thereof | |||
| 11 | 9450629 | Systems and methods for controlling local oscillator feed-through | |||
| 12 | 9444666 | Device for generating a vector-modulated output signal and method for generating a vector-modulated output signal | |||
| 13 | 9431962 | Coefficient estimation for digital IQ calibration | |||
| 14 | 9413407 | Conversion system | |||
| 15 | 9401732 | Receiver and receiving method of receiver | |||
| 16 | 9391578 | Low intermediate frequency receiver | |||
| 17 | 9385822 | Wideband calibration method and wideband calibration apparatus for calibrating mismatch between first signal path and second signal path of transmitter/receiver | |||
| 18 | 9385688 | Filter auto-calibration using multi-clock generator | |||
| 19 | 9374197 | Methods and arrangements for direct current estimation of a wireless communication packet | |||
| 20 | 9374121 | Transceiver with super-heterodyne and zero intermediate frequency (ZIF) topologies | |||
| 21 | 9356810 | Semiconductor integrated circuit and operating method thereof | |||
| 22 | 9344130 | Leakage calibration for a frequency converter | |||
| 23 | 9337965 | Systems and methods for asynchronous re-modulation with adaptive I/Q adjustment | |||
| 24 | 9325358 | Method for reducing second order distortion in harmonic rejection mixer | |||
| 25 | 9319084 | Noise cancellation apparatus and method | |||
| 26 | 9300336 | Direct conversion receiver device with first and second stages and related methods | |||
| 27 | 9294178 | Method and apparatus for transceiving for beam forming in wireless communication system | |||
| 28 | 9288586 | Method and apparatus for signal reception using dynamically selectable modes | |||
| 29 | 9270316 | Radio frequency front-end based on high-intermediate frequency superheterodyne and zero intermediate frequency structure | |||
| 30 | 9270301 | Method and arrangement for transmitting and receiving RF signals through various radio interfaces of communication systems | |||
| 31 | 9264080 | Reducing second order distortion in an amplifier | |||
| 32 | 9262653 | Reader for data interchange with a mobile data memory | |||
| 33 | 9246722 | Device for providing a differential output signal and method for providing a differential output signal | |||
| 34 | 9246719 | High dynamic range radio architecture with enhanced image rejection | |||
| 35 | 9246529 | Photonic RF down-converter based on optomechanical oscillation | |||
| 36 | 9246436 | Low power radio receiver | |||
| 37 | 9240892 | Method and apparatus for reduction of communications media energy consumption | |||
| 38 | 9240816 | Timing synchronization system and method of super regenerative receiver based on ultra low power communication | |||
| 39 | 9231637 | Adaptive DC offset cancellation for direct conversion RF receivers | |||
2015 | |||||
| 40 | 9225565 | Device for generating a vector-modulated output signal and method for generating a vector-modulated output signal | |||
| 41 | 9219512 | Integrated receiver and integrated circuit having integrated inductors and method therefor | |||
| 42 | 9219459 | Receiving device and remote control system | |||
| 43 | 9197279 | Estimation and reduction of second order distortion in real time | |||
| 44 | 9191048 | Quadrature impulse noise remover | |||
| 45 | 9176234 | Systems and methods for managing power consumption | |||
| 46 | 9172416 | Simplified high frequency tuner and tuning method | |||
| 47 | 9166643 | Method for correcting receiver in TDD system and devices associated therewith | |||
| 48 | 9166632 | Mixer circuits with programmable characteristics | |||
| 49 | 9160588 | Radio receiver and frequency correcting method therefor | |||
| 50 | 9160390 | Method and system for impairment shifting | |||
| 51 | 9148184 | Power detection circuit and power detection method | |||
| 52 | 9136893 | Receiver | |||
| 53 | 9124467 | Receiver gain adjustment to reducing an influence of a DC offset | |||
| 54 | 9124346 | Switching gates mixer | |||
| 55 | 9124345 | If process engine and receiver having the same and method for removing if carriers used therein | |||
| 56 | 9118439 | Receiver for imbalanced carriers | |||
| 57 | 9118285 | Compensation of a transmitter distortion | |||
| 58 | 9106502 | Apparatus, system and method of in-phase/quadrature (I/Q) imbalance compensation | |||
| 59 | 9100243 | Dynamic Low-IF frequency for interference mitigation | |||
| 60 | 9100094 | System and method for tuning a serial link | |||
| 61 | 9083390 | Method and apparatus for mixed-mode spectrum communication | |||
| 62 | 9065537 | Method and system for calibrating a multi-mode, multi-standard transmitter and receiver | |||
| 63 | 9059879 | Test signal generation and application in receivers | |||
| 64 | 9053474 | Systems and methods for handling point-of-sale transactions using a mobile device | |||
2014 | |||||
| 65 | 8874061 | Filtering apparatus and method for dual-band sensing circuit | |||
| 66 | 8750346 | Method for integrating signals transmitted from a transmitter to at least one ultra wide band (UWB) receiver as well as device for the implementation of the method | |||
2013 | |||||
| 67 | 8452250 | DC offset compensation method and DC offset compensation device | |||
| 68 | 8417206 | Methods and systems for blending between stereo and mono in a FM receiver | |||
| 69 | 8416886 | Receiver | |||
2011 | |||||
| 70 | 7953184 | Direct sampling type wireless receiver and method using the same | |||
| 71 | 7885632 | Automated noise measurement system | |||
2010 | |||||
| 72 | 7792215 | Direct-conversion receiver and sub-harmonic frequency mixer thereof | |||
| 73 | 7668527 | Multi-function passive frequency mixer | |||
2009 | |||||
| 74 | 7634247 | Method of sampling an analogue radiofrequency signal | |||
| 75 | 7603099 | Direct-conversion receiver system and method with quadrature balancing and DC offset removal | |||
| 76 | 7567790 | Receiving device and integrated circuit for reception | |||
| 77 | 7486131 | Quadrature demodulator and interrogator | |||
2008 | |||||
| 78 | 7433346 | Card device for high-speed wireless data communication | |||
| 79 | 7415248 | Multiband radio antenna with a flat parasitic element | |||
| 80 | 7356320 | Apparatus and method for removing DC offset in a frequency direct-conversion device | |||
2007 | |||||
| 81 | 7308246 | Emergency notification system and emergency notification device | |||
| 82 | 7292649 | 3G radio | |||
| 83 | 7218685 | Direct conversion receiver | |||
2006 | |||||
| 84 | 7133657 | Channel calibrator for use with a quadrature mixing receiver and a method of operation thereof | |||
| 85 | 7072424 | Adaptive direct conversion receiver | |||
| 86 | 7054610 | Wireless terminal device | |||
| 87 | 7047049 | Radio communications device including at least one light source | |||
| 88 | 7027793 | Direct conversion with variable amplitude LO signals | |||
2005 | |||||
| 89 | 6968172 | DC offset cancel circuit | |||
| 90 | 6963735 | Method and arrangement for receiving a frequency modulated signal | |||
| 91 | 6957057 | Switched capacitor mixer circuit to attain high gain and linearity in radio frequency receivers | |||
| 92 | 6957046 | System and method for reducing multipath interference in packetized wireless communication systems | |||
| 93 | 6954628 | Radio receiver | |||
| 94 | 6954626 | High frequency receiving device | |||
| 95 | 6950641 | Apparatus, and an associated method, for increasing receiver sensitivity of a direct conversion receiver | |||
| 96 | 6946989 | Transponder, including transponder system | |||
| 97 | 6944436 | Direct conversion transceiver capable of reducing DC offset using multichip module | |||
| 98 | 6941121 | Method for calibrating a DC offset cancellation level for direct conversion receivers | |||
| 99 | 6937195 | Inverted-F ferroelectric antenna | |||
| 100 | 6931241 | Dual digital low IF complex receiver | |||
| 101 | 6927644 | Low-loss tunable ferro-electric device and method of characterization | |||
| 102 | 6922554 | Method for implementing a transceiver and a transceiver | |||
| 103 | 6914950 | Multi-protocol receiver | |||
| 104 | 6909882 | Signal processing semiconductor integrated circuit device and wireless communication system | |||
| 105 | 6909344 | Band switchable filter | |||
| 106 | 6907236 | Mixer for dual conversion receiver | |||
| 107 | 6907235 | Apparatus and method for canceling DC offset in communications signals | |||
| 108 | 6904101 | Tuneless narrow-band super-regenerative receiver | |||
| 109 | 6903606 | DC offset correction using unused LNA | |||
| 110 | 6891440 | Quadrature oscillator with phase error correction | |||
| 111 | 6885852 | Method and apparatus in a wireless communication device for mitigating a received power overload | |||
| 112 | 6885341 | Inverted-F ferroelectric antenna | |||
| 113 | 6885263 | Tunable ferro-electric filter | |||
| 114 | 6882834 | Direct conversion receiver apparatus | |||
| 115 | 6873838 | Superregenerative oscillator RF receiver with differential output | |||
| 116 | 6871055 | Direct conversion receiver, mobile radio equipment using the same, and RF signal receiving method | |||
| 117 | 6862439 | Offset compensation in a direct-conversion receiver | |||
| 118 | 6862313 | Direct conversion spread spectrum time division duplex radio | |||
| 119 | 6859104 | Tunable power amplifier matching circuit | |||
| 120 | 6856790 | Receiver with dual D.C. noise cancellation circuits | |||
| 121 | 6850742 | Direct conversion receiver | |||
2004 | |||||
| 122 | 6826388 | Mobile communication apparatus including dividers in transmitter and receiver | |||
| 123 | 6823181 | Universal platform for software defined radio | |||
| 124 | 6816718 | DC offset correction using dummy amplifier | |||
| 125 | 6816712 | Radio apparatus | |||
| 126 | 6816006 | Method of adjusting the cutoff frequency of an electronic filtering system, and corresponding system | |||
| 127 | 6810307 | Thermostat having a temperature stabilized superregenerative RF receiver | |||
| 128 | 6788747 | Receiver capable of receiving analog broadcast and digital broadcast and IC for the same | |||
| 129 | 6785529 | System and method for I-Q mismatch compensation in a low IF or zero IF receiver | |||
| 130 | 6784727 | Fast-settling DC offset removal circuits with continuous cutoff frequency switching | |||
| 131 | 6782249 | Quadrature signal generation in an integrated direct conversion radio receiver | |||
| 132 | 6775530 | Direct conversion of narrow-band RF signals | |||
| 133 | 6771945 | Dynamic DC balancing of a direct conversion receiver and method | |||
| 134 | 6760577 | Alignment methods and apparatus for I/Q phase and amplitude error correction and image rejection improvement | |||
| 135 | 6760568 | Circuit and method for reducing local oscillator frequency transmission in a radio transceiver | |||
| 136 | 6757340 | Radio receiver and method for preloading an average DC-offset into a channel filter | |||
| 137 | 6748203 | Three port structure with modulated LO signal | |||
| 138 | 6748200 | Automatic gain control system and method for a ZIF architecture | |||
| 139 | 6745020 | Direct downconversion receiver | |||
| 140 | 6744327 | Tunable voltage controlled oscillator | |||
| 141 | 6735425 | Telephone with a demodulator circuit with an improved local oscillator | |||
| 142 | 6735422 | Calibrated DC compensation system for a wireless communication device configured in a zero intermediate frequency architecture | |||
| 143 | 6735261 | Calibration of a N-port receiver | |||
| 144 | 6727786 | Band switchable filter | |||
| 145 | 6725023 | Radio FM receiver | |||
| 146 | 6714602 | Demodulator and receiver | |||
| 147 | 6711397 | Structures and methods for direct conversion from radio frequency modulated signals to baseband signals | |||
| 148 | 6707858 | Low IF receiver | |||
| 149 | 6697611 | Method and apparatus for performing DC offset cancellation in a receiver | |||
| 150 | 6697438 | Circuit configuration for a multistandard communications terminal | |||
| 151 | 6690735 | Broad band digital radio receiver for multicarrier signal | |||
| 152 | 6690251 | Tunable ferro-electric filter | |||
| 153 | 6690225 | DC offset cancel circuit | |||
| 154 | 6690176 | Low-loss tunable ferro-electric device and method of characterization | |||
| 155 | 6674998 | System and method for detecting and correcting phase error between differential signals | |||
2003 | |||||
| 156 | 6668164 | Method and apparatus for reducing intermodulation distortion in a low current drain automatic gain control system | |||
| 157 | 6658237 | Multi-Band transceiver utilizing direct conversion receiver | |||
| 158 | 6658070 | Direct conversion receiver and method of compensating interference signals generated during processing | |||
| 159 | 6654596 | Homodyne radio receiver having DC compensation | |||
| 160 | 6654593 | Combined discrete automatic gain control (AGC) and DC estimation | |||
| 161 | 6653411 | Anti-reflective coating compositions comprising polymerized aminoplasts | |||
| 162 | 6650178 | N-port direct receiver | |||
| 163 | 6639909 | Receiver having functions for cancelling DC offset and measuring carrier detection threshold value, and control method thereof | |||
| 164 | 6631256 | Simplified high frequency tuner and tuning method | |||
| 165 | 6631170 | Radio frequency receiver | |||
| 166 | 6625424 | Autocalibration of a transceiver through nulling of a DC-voltage in a receiver and injecting of DC-signals in a transmitter | |||
| 167 | 6614403 | Radiation synthesizer receive and transmit systems | |||
| 168 | 6608999 | Communication signal receiver and an operating method therefor | |||
| 169 | 6606484 | Distortion correction circuit for direct conversion receiver | |||
| 170 | 6600913 | Two-port demodulation device | |||
| 171 | 6600911 | Even harmonic direct-conversion receiver, and a transmitting and receiving apparatus using the same | |||
| 172 | 6597748 | Method and apparatus for receiving a signal | |||
| 173 | 6577855 | Low IF receiver | |||
| 174 | 6573864 | Receiver | |||
| 175 | 6560448 | DC compensation system for a wireless communication device configured in a zero intermediate frequency architecture | |||
| 176 | 6560447 | DC offset correction scheme for wireless receivers | |||
| 177 | 6549763 | Receiving apparatus and method | |||
| 178 | 6545516 | Frequency conversion | |||
| 179 | 6539215 | Down converter and demodulator using a three port junction | |||
| 180 | 6539066 | Integrable radio receiver circuit for frequency-modulated digital signals | |||
| 181 | 6535725 | Interference reduction for direct conversion receivers | |||
| 182 | 6516183 | Method and apparatus for disturbance compensation of a direct conversion receiver in a full duplex transceiver | |||
| 183 | 6512472 | Method and apparatus for optimizing dynamic range of a wideband analog-to-digital converter | |||
| 184 | 6510313 | Wireless communication device | |||
| 185 | 6509777 | Method and apparatus for reducing DC offset | |||
| 186 | 6507733 | Three port junction receiver | |||
| 187 | 6504885 | System and method for modeling mixed signal RF circuits in a digital signal environment | |||
2002 | |||||
| 188 | 6498929 | Receiver having DC offset decreasing function and communication system using the same | |||
| 189 | 6459889 | DC offset correction loop for radio receiver | |||
| 190 | 6449471 | Wireless terminal device | |||
| 191 | 6445726 | Direct conversion radio receiver using combined down-converting and energy spreading mixing signal | |||
| 192 | 6442383 | Demodulator and digital wireless communication receiver | |||
| 193 | 6427068 | Simplified high frequency tuner and tuning method | |||
| 194 | 6424284 | Baseband receiver including dual port DAC | |||
| 195 | 6411646 | Direct conversion time division duplex radio, direct sequence spread spectrum cordless telephone | |||
| 196 | 6408035 | Simplified receiver for frequency shift keyed signals | |||
| 197 | 6377616 | Calibration of n-port receivers | |||
| 198 | 6370372 | Subharmonic mixer circuit and method | |||
| 199 | 6366765 | Receiver | |||
| 200 | 6366622 | Apparatus and method for wireless communications | |||
| 201 | 6363125 | Non-coherent six-port receiver | |||
| 202 | 6360087 | Direct conversion receiver | |||
| 203 | 6356748 | Spectrum control for direct conversion radio frequency reception | |||
| 204 | 6356747 | Intermediary low-frequency frequency-conversion radiofrequency reception | |||
| 205 | 6356746 | Direct converting receiver | |||
| 206 | 6339711 | Radio apparatus | |||
| 207 | 6337976 | Selective-calling radio receiver using direct conversion method | |||
| 208 | 6337888 | In-phase and quadrature signal regeneration | |||
| 209 | 6335656 | Direct conversion receivers and filters adapted for use therein | |||
2001 | |||||
| 210 | 6334051 | Direct conversion receiver with wide band analog frequency conversion front end and digital demodulating and selecting back end | |||
| 211 | 6332083 | Apparatus and associated method, for operating on receive signals received at a receiver | |||
| 212 | 6324389 | Method and circuit arrangement for processing a received signal | |||
| 213 | 6321073 | Radiotelephone receiver and method with improved dynamic range and DC offset correction | |||
| 214 | 6317006 | Frequency synthesizer utilizing phase shifted control signals | |||
| 215 | 6308057 | Radio receiver having compensation for direct current offset | |||
| 216 | 6307897 | Radio receiving apparatus for receiving communication signals of different bandwidths | |||
| 217 | 6307896 | Instrumentation receiver for digitally modulated radio frequency signals | |||
| 218 | 6304751 | Circuits, systems and methods for digital correction of phase and magnitude errors in image reject mixers | |||
| 219 | 6282414 | Wireless selective call receiving apparatus which can reduce current consumption and wireless selective call receiving method | |||
| 220 | 6275540 | Selective call receiver having an apparatus for modifying an analog signal to a digital signal and method therefor | |||
| 221 | 6271737 | Communication device with feedback for cancellation of perturbations | |||
| 222 | 6246866 | Dual band receiver | |||
| 223 | 6236690 | Direct-conversion receiver for digital-modulation signal | |||
| 224 | 6233444 | Radio receiving method and radio receiving apparatus | |||
| 225 | 6233431 | Radio page receiver with automatic cyclical turn on | |||
| 226 | 6192225 | Direct conversion receiver | |||
| 227 | 6188880 | Apparatus and method for reducing low-frequency distortion in frequency converted signals | |||
| 228 | 6181754 | System and method for modeling mixed signal RF circuits in a digital signal environment | |||
| 229 | 6175726 | Receiver architecture for the receiving of angle-modulated/angle-keyed carrier signals | |||
2000 | |||||
| 230 | 6151369 | Digital broadcast receiver | |||
| 231 | 6150891 | PLL synthesizer having phase shifted control signals | |||
| 232 | 6144243 | Method and circuit arrangement for reducing offset voltage of a signal | |||
| 233 | 6134429 | Direct digital down conversion of a 10.8 MHz intermediate frequency signal in the personal handy phone system | |||
| 234 | 6134425 | Digital module RF section | |||
| 235 | 6122487 | Communication unit | |||
| 236 | 6118828 | Digital super-regenerative detector RF receiver | |||
| 237 | 6118810 | Multi-channel base station/terminal design covering complete system frequency range | |||
| 238 | 6115593 | Elimination of D.C. offset and spurious AM suppression in a direct conversion receiver | |||
| 239 | 6115584 | Transmitter-receiver for use in broadband wireless access communications systems | |||
| 240 | 6115432 | High-frequency signal receiving apparatus | |||
| 241 | 6112069 | Radio receiver and method for suppressing attenuation properties of a low frequency signal | |||
| 242 | 6104764 | Radio receiving apparatus for receiving communication signals of different bandwidths | |||
| 243 | 6101226 | Radio receiving apparatus for receiving communication signals of different bandwidths | |||
| 244 | 6088581 | Method and apparatus for reducing amplitude modulated interference in a receiver | |||
| 245 | 6085075 | Communication system, a communication device and a frequency synthesizer | |||
| 246 | 6081697 | Multi-carrier radio system and radio transceiver implementation | |||
| 247 | 6073002 | Mixer circuit and communication device using the same | |||
| 248 | 6073000 | Direct conversion receiving circuit and direct conversion receiver | |||
| 249 | 6072997 | Frequency discriminator for a direct conversion receiver | |||
| 250 | 6052024 | Monolithic, low-noise, synchronous direct detection receiver for passive microwave/millimeter-wave radiometric imaging systems | |||
| 251 | 6035186 | Integrated receiver | |||
| 252 | 6035002 | Digital super-regenerative detector RF receiver | |||
| 253 | 6034990 | Digital radio transmission and reception system applying a direct modulation and demodulation method | |||
| 254 | 6032054 | Vehicle telecommunication apparatus with RF antenna switching arrangement | |||
| 255 | 6029058 | Spectrum control for direct conversion radio frequency reception | |||
| 256 | 6026129 | Radio receiving apparatus for receiving communication signals of different bandwidths | |||
| 257 | 6023614 | Method for decoding a suppressed-carrier modulated signal in the presence of a pilot tone, particularly for FM signals | |||
| 258 | 6021323 | Direct conversion receiver with reduced even order distortion | |||
| 259 | 6021164 | Digital radio communication system having reduced phase-locked loop, and its synchronization | |||
| 260 | 6020839 | Analog technique to detect asymmetric radio frequency pulses | |||
| 261 | 6016422 | Method of and apparatus for generating radio frequency quadrature LO signals for direct conversion transceivers | |||
1999 | |||||
| 262 | 6009126 | Zero-IF receiver | |||
| 263 | 6006081 | Communications receivers | |||
| 264 | 6006079 | Radio having a fast adapting direct conversion receiver | |||
| 265 | 5999574 | Digital filter system, carrier reproduction circuit using the digital filter system, and demodulation circuit using the carrier reproduction circuit | |||
| 266 | 5983081 | Method for generating frequencies in a direct conversion transceiver of a dual band radio communication system, a direct conversion transceiver of a dual band radio communication system and the use of this method and apparatus in a mobile station | |||
| 267 | 5982823 | Direct frequency selection and down-conversion for digital receivers | |||
| 268 | 5970046 | Apparatus for demodulating AM data multiplexed modulated wave signal | |||
| 269 | 5963856 | Wireless receiver including tunable RF bandpass filter | |||
| 270 | 5955783 | High frequency signal processing chip having signal pins distributed to minimize signal interference | |||
| 271 | 5953643 | Receiver circuit | |||
| 272 | 5949830 | Small wireless radio | |||
| 273 | 5946609 | Reduced-radiation radio signal receivers | |||
| 274 | 5937341 | Simplified high frequency tuner and tuning method | |||
| 275 | 5924024 | Method and circuit for achieving frequency conversion | |||
| 276 | 5918169 | Homodyne cellular base station | |||
| 277 | 5918167 | Quadrature downconverter local oscillator leakage canceller | |||
| 278 | 5909644 | AM radio receiver | |||
| 279 | 5907799 | Process for operating at least one receiver of radio signals, placed in the vicinity of a radiating facility or apparatus | |||
| 280 | 5901344 | Method and apparatus for improved zero intermediate frequency receiver latency | |||
| 281 | 5896306 | Group delay correction method and apparatus | |||
| 282 | 5896061 | Homodyne receiver and process for correcting the converted received signal | |||
| 283 | 5893029 | Baseband phase-locked direct conversion receiver with frequency offset | |||
| 284 | 5883548 | Demodulation system and method for recovering a signal of interest from an undersampled, modulated carrier | |||
| 285 | 5872538 | Frequency domain correction of I/Q imbalance | |||
| 286 | 5870669 | Radio receiver | |||
| 287 | 5864586 | Radio apparatus with offset compensating circuit | |||
1998 | |||||
| 288 | 5852784 | Multiband mobile unit communication apparatus | |||
| 289 | 5850598 | Homodyne receiver and process for direct conversion | |||
| 290 | 5848355 | Frequency synthesizer correction using a temperature responsive divisor control | |||
| 291 | 5838799 | Digital sound broadcasting using a dedicated control channel | |||
| 292 | 5828955 | Near direct conversion receiver and method for equalizing amplitude and phase therein | |||
| 293 | 5826180 | Near homodyne radio frequency receiver | |||
| 294 | 5822704 | Mobile radio unit for use in dual-mode cellular communications system | |||
| 295 | 5822688 | Method for enhancing the reception sensitivity in homodyne recievers | |||
| 296 | 5822366 | Transceiver and method for generating and processing complex I/Q-signals | |||
| 297 | 5819157 | Reduced power tuner chip with integrated voltage regulator for a satellite receiver system | |||
| 298 | 5815113 | Monolithic, low-noise, synchronous direct detection receiver for passive microwave/millimeter-wave radiometric imaging systems | |||
| 299 | 5812942 | Balanced differential radio receiver and method of operation | |||
| 300 | 5793817 | DC offset reduction in a transmitter | |||
| 301 | 5793800 | Method and apparatus for minimizing phase error in a transmitter section of a transceiver | |||
| 302 | 5790817 | Configurable digital wireless and wired communications system architecture for implementing baseband functionality | |||
| 303 | 5764704 | DSP implementation of a cellular base station receiver | |||
| 304 | 5764700 | Digital radio link system and radio link terminal | |||
| 305 | 5761615 | Wide band zero if quadrature demodulator using a intermediate frequency and a single local oscillator | |||
| 306 | 5758296 | Mobile telephone receiver with adaptively inserted if filters and an if filter inserting method | |||
| 307 | 5757794 | Digital down converter and method | |||
| 308 | 5754601 | Jitter circuit for reduced switching noise | |||
| 309 | 5751197 | Low-power, self-quenching superregenerative detector | |||
| 310 | 5749051 | Compensation for second order intermodulation in a homodyne receiver | |||
| 311 | 5745531 | Automatic gain control apparatus, communication system, and automatic gain control method | |||
| 312 | 5742902 | Super-regenerative circuit apparatus for a door operator receiver and door operator incorporating the same | |||
| 313 | 5724653 | Radio receiver with DC offset correction circuit | |||
| 314 | 5715530 | Method for reducing spurious reception locations in homodyne receivers with time-variant carrier frequency | |||
| 315 | 5710998 | Method and apparatus for improved zero intermediate frequency receiver latency | |||
| 316 | 5710997 | Superheterodyne receiver apparatus | |||
1997 | |||||
| 317 | 5697088 | Balun transformer | |||
| 318 | 5696437 | Intelligent low battery detection circuit for a paging receiver | |||
| 319 | 5678223 | Method and apparatus for an automatic frequency control receiver | |||
| 320 | 5663988 | Method and circuit arrangement for offset correction in a TDMA radio receiver | |||
| 321 | 5661485 | Homodyne receiver apparatus and method | |||
| 322 | 5633815 | Formatter | |||
| 323 | 5630228 | Double balanced mixer circuit with active filter load for a portable comunication receiver | |||
| 324 | 5630216 | Micropower RF transponder with superregenerative receiver and RF receiver with sampling mixer | |||
| 325 | 5619536 | Digital superheterodyne receiver and baseband filter method used therein | |||
| 326 | 5617451 | Direct-conversion receiver for digital-modulation signal with signal strength detection | |||
| 327 | 5617344 | Fixed coefficient high decimation filter | |||
| 328 | 5613233 | Apparatus with distortion cancelling feedback signal | |||
| 329 | 5606737 | Oscillator mixer and a multiplier mixer for outputting a baseband signal based upon an input and output signal | |||
| 330 | 5606731 | Zerox-IF receiver with tracking second local oscillator and demodulator phase locked loop oscillator | |||
| 331 | 5604929 | System for correcting quadrature gain and phase errors in a direct conversion single sideband receiver independent of the character of the modulated signal | |||
| 332 | 5604927 | Receiver having an adjustable bandwidth filter | |||
| 333 | 5604746 | Digital data receiver | |||
| 334 | 5603111 | Synchronous tracking AM receiver | |||
1996 | |||||
| 335 | 5590413 | Radio transceiver having shared modulation and demodulation mixer circuits | |||
| 336 | 5584068 | Direct conversion receiver | |||
| 337 | 5584066 | Correcting circuit for mixing circuit receiver using same and frequency spectrum inverting circuit using same | |||
| 338 | 5579347 | Digitally compensated direct conversion receiver | |||
| 339 | 5570392 | Phase generator | |||
| 340 | 5555452 | Peak and valley signal measuring circuit using single digital-to-analog converter | |||
| 341 | 5533064 | Digital radio receiver having limiter amplifiers and logarithmic detector | |||
| 342 | 5530929 | Homodyne receiver minimizing oscillator leakage | |||
| 343 | 5509030 | RF receiver AGC incorporating time domain equalizer circuity | |||
| 344 | 5507036 | Apparatus with distortion cancelling feed forward signal | |||
| 345 | 5493581 | Digital down converter and method | |||
| 346 | 5483695 | Intermediate frequency FM receiver using analog oversampling to increase signal bandwidth | |||
1995 | |||||
| 347 | 5471665 | Differential DC offset compensation circuit | |||
| 348 | 5465407 | Gain controller for a digital mobile radio receiver | |||
| 349 | 5446770 | Time division duplex transceiver | |||
| 350 | 5440586 | Receiver having reduced influence of oscillator radiation and parasitic crosstalk effects on gain control | |||
| 351 | 5438692 | Direct conversion receiver | |||
| 352 | 5428836 | Radio receiver for forming a baseband signal of time-varying frequencies | |||
| 353 | 5422889 | Offset correction circuit | |||
1994 | |||||
| 354 | 5375255 | Radio receiver comprising analog dynamic compression and digital expansion | |||
| 355 | 5375146 | Digital frequency conversion and tuning scheme for microwave radio receivers and transmitters | |||
| 356 | 5371902 | Method and apparatus for recovering baseband signals from in-phase and quadrature-phase signal components having phase error therebetween | |||
| 357 | 5361408 | Direct conversion receiver especially suitable for frequency shift keying (FSK) modulated signals | |||
| 358 | 5355524 | Integrated radio receiver/transmitter structure | |||
| 359 | 5341431 | AM stereo detection and audio processing apparatus | |||
| 360 | 5339040 | AM demodulation receiver using digital signal processor | |||
| 361 | 5321852 | Circuit and method for converting a radio frequency signal into a baseband signal | |||
| 362 | 5309482 | Receiver having an adjustable matched filter | |||
| 363 | 5307378 | Digital radio communication apparatus | |||
| 364 | 5305086 | Two step demodulation synchronous detector | |||
| 365 | 5303417 | Mixer for direct conversion receiver | |||
| 366 | 5301364 | Method and apparatus for digital automatic gain control in a receiver | |||
| 367 | 5293408 | FSK data receiving system | |||
1993 | |||||
| 368 | 5263197 | Dual port oscillator for two-stage direct conversion receiver | |||
| 369 | 5263196 | Method and apparatus for compensation of imbalance in zero-if downconverters | |||
| 370 | 5263195 | Superheterodyne radio receiver with digital automatic frequency control for a local oscillator | |||
| 371 | 5263194 | Zero if radio receiver for intermittent operation | |||
| 372 | 5241702 | D.C. offset compensation in a radio receiver | |||
| 373 | 5233632 | Communication system receiver apparatus and method for fast carrier acquisition | |||
| 374 | 5230099 | System for controlling phase and gain errors in an I/Q direct conversion receiver | |||
| 375 | 5212827 | Zero intermediate frequency noise blanker | |||
| 376 | 5212826 | Apparatus and method of DC offset correction for a receiver | |||
| 377 | 5212825 | Synthetic heterodyne demodulator circuit | |||
| 378 | 5204977 | Apparatus and method of automatic gain control in a receiver | |||
| 379 | 5179730 | Selectivity system for a direct conversion receiver | |||
| 380 | 5179728 | Spurious product and local oscillator radiation suppression system for use in superheterodyne radio receivers | |||
1992 | |||||
| 381 | 5146613 | Low power UHF data transceiver | |||
| 382 | 5142695 | Cellular radio-telephone receiver employing improved technique for generating an indication of received signal strength | |||
| 383 | 5140703 | Modulation distortion analyzer | |||
| 384 | 5109531 | Sideband receiver with pilot lock | |||
| 385 | 5095536 | Direct conversion receiver with tri-phase architecture | |||
1991 | |||||
| 386 | 5065107 | Phase-locked loop bandwidth switching demodulator for suppressed carrier signals | |||
| 387 | 5008939 | AM noise reducing | |||
| 388 | 5003621 | Direct conversion FM receiver | |||
1990 | |||||
| 389 | 4980687 | Digital demodulator | |||
| 390 | 4979230 | Up-conversion homodyne receiver for cable television converter with frequency offset to avoid adjacent channel interference | |||
| 391 | 4953182 | Gain and phase correction in a dual branch receiver | |||
| 392 | 4944025 | Direct conversion FM receiver with offset | |||
| 393 | 4912773 | Communications system utilizing a pilot signal and a modulated signal | |||
| 394 | 4905087 | UHF FM receiver having improved frequency stability and low RFI emission | |||
| 395 | 4903331 | Quadrature detection receiver with separate amplitude and phase control | |||
1989 | |||||
| 396 | 4852123 | Nearly DC IF phase locked transceiver | |||
| 397 | 4814715 | Mixer arrangement for suppression of oscillator interference in quadrature demodulators | |||
1988 | |||||
| 398 | 4742566 | AM receiver | |||
| 399 | 4736390 | Zero IF radio receiver apparatus | |||
| 400 | 4718113 | Zero-IF receiver wih feedback loop for suppressing interfering signals | |||
1987 | |||||
| 401 | 4641368 | Radio frequency receiver | |||
1986 | |||||
| 402 | 4633315 | Receiver for RF-signals comprising a pair of parallel signal paths | |||
| 403 | 4631499 | Phase-locked loop for a directly mixing synchronous AM-receiver | |||
| 404 | 4625331 | Automatic frequency control system or an SSB receiver | |||
1985 | |||||
| 405 | 4535286 | Radio frequency receiver | |||
1984 | |||||
| 406 | 4485487 | Method of, and a receiver for, demodulating a double sideband amplitude modulated signal in a quasi-synchronous area coverage scheme utilizing sideband diversity | |||
| 407 | 4464770 | Synchronous radio or television receiver with analog high frequency section followed by digital low frequency section | |||
1983 | |||||
| 408 | 4408351 | Directly mixing receiving system | |||
| 409 | 4403348 | Single sideband receiver with intersyllabic gain correction limit control | |||
1982 | |||||
| 410 | 4363139 | Radio frequency receiver | |||
| 411 | 4352210 | Linear mixer with reduced spurious responses | |||
| 412 | 4328590 | Single sideband receiver | |||
| 413 | 4313211 | Single sideband receiver with pilot-based feed forward correction for motion-induced distortion | |||
1981 | |||||
| 414 | 4292594 | Method and apparatus for carrier regeneration and synchronous amplitude demodulation | |||
1980 | |||||
| 415 | 4241452 | Automatic frequency control system | |||
| 416 | 4228546 | AM Radio receiver | |||
| 417 | 4206410 | Automatic frequency control system for single sideband signal receiver | |||
| 418 | 4193035 | Circuit arrangement for receiving one of the sidebands from a double sideband signal | |||
1978 | |||||
| 419 | 4123712 | Symmetrical polyphase network | |||
| 420 | 4100376 | Pilot tone demodulator | |||
1977 | |||||
| 421 | 4013964 | Automatic gain control means for a single sideband radio receiver | |||
1976 | |||||
| 422 | 3984835 | Homodyne communication system | |||
| 423 | 3973203 | Carrier isolation system | |||
| © 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017 | |||||