СПИСОК патентов США - подгруппа МПК16 H04L27/36
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| № п/п | Номер патента | Название патента | |||
2017 | |||||
| 1 | 9608695 | Communication system | |||
| 2 | 9605934 | Relaying of missile body roll angle | |||
| 3 | 9602326 | Apparatus and method for transmitting signal, apparatus and method for receiving signal | |||
| 4 | 9602245 | Transmitting apparatus and interleaving method thereof | |||
| 5 | 9596120 | Signal transmission apparatus, distortion compensation apparatus, and signal transmission method | |||
| 6 | 9596118 | FBMC receiver using a method for synchronization in a frequency domain | |||
| 7 | 9596112 | Method for communication via three orthogonal waveforms | |||
| 8 | 9595924 | Calibration for power amplifier predistortion | |||
| 9 | 9595920 | Hardware-efficient compensator for outphasing power amplifiers | |||
| 10 | 9590836 | System and method for digital sideband mitigation: advanced modulation in a narrow bandwidth RF channel | |||
| 11 | 9590800 | Multilevel modulation optical transceiver and multilevel modulation optical transmission and reception method | |||
| 12 | 9585115 | RF carrier synchronization and phase alignment methods and systems | |||
| 13 | 9584349 | Transmission circuit | |||
| 14 | 9584169 | High frequency transmitter | |||
| 15 | 9584154 | System and method for digital signaling | |||
| 16 | 9577865 | Carrier recovery aided by pilot symbols carrying information | |||
| 17 | 9577864 | Method and apparatus for use with received electromagnetic signal at a frequency not known exactly in advance | |||
| 18 | 9577786 | Pilot symbol generation for highly-spectrally-efficient communications | |||
| 19 | 9577698 | Semiconductor device including spiral shape inductor and horseshoe shape inductor | |||
| 20 | 9577581 | Signal amplifier with active power management | |||
| 21 | 9571326 | Method and apparatus for high-speed data transfer employing self-synchronizing quadrature amplitude modulation | |||
| 22 | 9571325 | Transmission circuit, transmission method, and transmission system | |||
| 23 | 9571137 | Single tone RF signal generator | |||
| 24 | 9571131 | Signal generating method and signal generating device | |||
| 25 | 9569648 | Apparatus and methods for wireless communication using load modulation | |||
| 26 | 9568521 | Distortion estimation apparatus and method | |||
| 27 | 9564992 | Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals | |||
| 28 | 9564976 | Blind equalization of dual subcarrier OFDM signals | |||
| 29 | 9564974 | Optical transmission device | |||
| 30 | 9564928 | Transmitter and method for generating additional parity thereof | |||
| 31 | 9559879 | PA cell, PA module, wireless communication unit, RF transmitter architecture and method therefor | |||
| 32 | 9553754 | Post distortion in satellite communications | |||
| 33 | 9553621 | Apparatus and methods for signal generation, reception, and self-calibration | |||
| 34 | 9553618 | Signal cancellation method and device for wireless communication system | |||
| 35 | 9548881 | Method and apparatus for transmitting and receiving data in broadcasting system | |||
| 36 | 9548880 | Transmitter and its control method | |||
| 37 | 9548771 | Method and apparatus for eliminating interference among transmission channels of transmitter | |||
| 38 | 9544032 | System and method for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) offset quadrature amplitude modulation (OQAM) | |||
| 39 | 9544008 | Integrated circuit | |||
| 40 | 9544007 | Wireless transmission system, wireless communication device, and wireless communication method | |||
| 41 | 9538547 | User equipment initiated discontinuous operation in a wireless communications network | |||
| 42 | 9537513 | Rate adaptive turbo forward error correction | |||
| 43 | 9537509 | Transmitting apparatus and interleaving method thereof | |||
2016 | |||||
| 44 | 9531576 | Method and apparatus for transmitting modulation symbol using 256QAM in a wireless access system | |||
| 45 | 9531575 | Systems and methods for providing and/or using an OFDN-OQAM structure | |||
| 46 | 9531478 | Digital optical modulator for programmable n-quadrature amplitude modulation generation | |||
| 47 | 9531409 | Switched capacitor transmitter circuits and methods | |||
| 48 | 9525581 | Wireless communication device and malfunction determining method | |||
| 49 | 9525572 | Signal correction method and receiving machine | |||
| 50 | 9521027 | Method for generating symbols for the automatic gain control of a signal to be transmitted | |||
| 51 | 9521026 | Tomlinson-harashima precoding with non-overlapping dynamic modulation coding subsets | |||
| 52 | 9521024 | Device of crest factor reduction | |||
| 53 | 9520906 | Switched capacitor transmitter circuits and methods | |||
| 54 | 9520834 | Quadrature mixer arrangement | |||
| 55 | 9515737 | Method and device for data compression, transmission, and decompression | |||
| 56 | 9509546 | Semi-polar modulator | |||
| 57 | 9509489 | Correction of quadrature modulation errors | |||
| 58 | 9504084 | Method to support an asymmetric time-division duplex (TDD) configuration in a heterogeneous network (HetNet) | |||
| 59 | 9503305 | Method for low complexity decision metric compression of higher-order square-QAM constellation | |||
| 60 | 9503303 | Symbol mapping for binary coding | |||
| 61 | 9503294 | Amplitude and phase shift keying modulation for saturated amplifier systems | |||
| 62 | 9503153 | Spread spectrum GMSK signals | |||
| 63 | 9497713 | Accurate uplink power control for CoMP and C-RAN | |||
| 64 | 9497061 | Undersampled receiver characterization | |||
| 65 | 9491029 | Devices and methods for reducing signal distortion in I/Q modulation transceivers | |||
| 66 | 9491028 | Phase synchronization of modulation or demodulation for QAM-based multiband TSV-link | |||
| 67 | 9491027 | Miniature mobile marker system and method | |||
| 68 | 9491026 | Transmission method | |||
| 69 | 9490881 | Envelope tracking system for MIMO | |||
| 70 | 9485126 | Signal combining system for constant envelope transmission of information | |||
| 71 | 9485030 | Optical signal modulation | |||
| 72 | 9484975 | Modular microwave backhaul outdoor unit | |||
| 73 | 9484957 | Transmitter apparatus and signal processing method thereof | |||
| 74 | 9479381 | Method for transmitting at least one multi-carrier signal consisting of OFDM-OQAM symbols | |||
| 75 | 9479368 | Method and apparatus for adjusting pre-distortion coefficient | |||
| 76 | 9479287 | Information transmission method and device | |||
| 77 | 9479208 | System for the correction of the phase error of two in-phase and quadrature signals, corresponding device and method | |||
| 78 | 9473340 | Orthogonal frequency division multiplexing polar transmitter | |||
| 79 | 9473338 | Receiver, transmitter, feedback device, transceiver and signal processing method | |||
| 80 | 9473244 | Flexible 400G and 1 Tb/s transmission over transoceanic distance | |||
| 81 | 9473096 | Method and apparatus for adaptive transmit power control | |||
| 82 | 9467954 | Power adjustment method and apparatus based on low delay power detection before DPD | |||
| 83 | 9467394 | Time and frequency diversity modulation system and method | |||
| 84 | 9467251 | Method and system for forward error correction decoding with parity check for use in low complexity highly-spectrally efficient communications | |||
| 85 | 9467229 | Multilevel intensity modulation and demodulation system and method | |||
| 86 | 9467212 | System and method for multiple-input multiple-output communication | |||
| 87 | 9467164 | Apparatus and method for supporting polar code designs | |||
| 88 | 9462582 | Enhanced PDCCH overlapping with the PDCCH region | |||
| 89 | 9461865 | Apparatus and method for demodulating hybrid modulation symbol in wireless communication system using hybrid modulation scheme | |||
| 90 | 9461864 | Apparatus and method for adaptively selecting channel code based on non-gaussianity of channel in wireless communication system | |||
| 91 | 9461775 | Method, apparatus and system for transmitting information bits | |||
| 92 | 9461771 | Method and apparatus for transmitting and receiving downlink control information | |||
| 93 | 9461675 | System and method for enhanced transmitter efficiency | |||
| 94 | 9450686 | Testing an upstream path of a cable network | |||
| 95 | 9450629 | Systems and methods for controlling local oscillator feed-through | |||
| 96 | 9450593 | Dither-less error feedback fractional-n frequency synthesizer systems and methods | |||
| 97 | 9450553 | Apparatus and a method for amplifying a transmit signal | |||
| 98 | 9444672 | Data modulation | |||
| 99 | 9444514 | OTFS methods of data channel characterization and uses thereof | |||
| 100 | 9444500 | Modulation circuit of digital transmitter, digital transmitter, and signal modulation method | |||
| 101 | 9438460 | Partial discrete fourier transform-spread in an orthogonal frequency division multiplexing system | |||
| 102 | 9432946 | Transmission apparatus and transmission method | |||
| 103 | 9432236 | System for generating a calibration signal, related transceiver and method | |||
| 104 | 9432173 | Method and transceiver for cancelling multi-carrier transmission interference | |||
| 105 | 9426016 | Self track scheme for multi frequency band serializer de-serializer I/O circuits | |||
| 106 | 9426015 | Apparatus and method for symbol mapping in wireless communication system using multi tone frequency quadrature amplitude modulation | |||
| 107 | 9425874 | Signal generating method and signal generating apparatus | |||
| 108 | 9419837 | Distributed antenna system | |||
| 109 | 9419772 | Method and apparatus for transmitting and receiving MCS index for 256QAM in wireless access system | |||
| 110 | 9413583 | Calibrating RF path delay and IQ phase imbalance for polar transmit system | |||
| 111 | 9413582 | Method and apparatus for transmitting and receiving | |||
| 112 | 9413417 | Apparatus for improving receiver sensitivity in a communication system | |||
| 113 | 9413294 | Apparatus and method for correcting IQ imbalance | |||
| 114 | 9407306 | Quadrature amplitude modulation for time-reversal systems | |||
| 115 | 9407203 | Combined amplitude-time and phase modulation | |||
| 116 | 9401833 | Method and apparatus for transmitting/receiving signal in wireless communication system | |||
| 117 | 9401778 | Transmission device and distortion compensation method | |||
| 118 | 9398604 | System and method for managing multiradio communications in a single device | |||
| 119 | 9397781 | Method and apparatus for improving performance of transmit controlled adaptive modulation in xDSL and G.fast systems | |||
| 120 | 9397711 | Pre-distortion in a wireless transmitter | |||
| 121 | 9385907 | Dual re-configurable logic devices for MIMO-OFDM communication systems | |||
| 122 | 9385764 | Digital pre-distortion for high bandwidth signals | |||
| 123 | 9379930 | Transmitter devices of I/Q mismatch calibration, and methods thereof | |||
| 124 | 9379929 | Phase imbalance calibration | |||
| 125 | 9379745 | Multi-band wide band power amplifier digital predistortion system | |||
| 126 | 9379742 | RF transmitter, integrated circuit device, wireless communication unit and method therefor | |||
| 127 | 9374262 | Techniques for linearizing phase separately from amplitude in a communications system | |||
| 128 | 9374261 | Signal modulator and signal modulating method | |||
| 129 | 9374260 | Method and apparatus for directly detected optical transmission systems based on carrierless amplitude-phase modulation | |||
| 130 | 9374256 | Transmitter and method for reducing peak-to-average power ratio | |||
| 131 | 9374196 | System and method for digital memorized predistortion for wireless communication | |||
| 132 | 9374044 | Architecture of nonlinear RF filter-based transmitter | |||
| 133 | 9369318 | Scalable serial/de-serial I/O for chip-to-chip connection based on multi-frequency QAM scheme | |||
| 134 | 9363130 | Dynamic digital predistortion for a microwave radio system | |||
| 135 | 9363112 | Systems and methods for equalization in radio frequency signal paths | |||
| 136 | 9363068 | Vector processor having instruction set with sliding window non-linear convolutional function | |||
| 137 | 9363053 | Integrated circuit | |||
| 138 | 9363040 | Apparatus for transmitting and receiving a signal and method for transmitting and receiving a signal | |||
| 139 | 9362869 | Signal predistortion for non-linear amplifier | |||
| 140 | 9356732 | Quadrature error detection and correction | |||
| 141 | 9350578 | Sigma-delta modulation apparatus and sigma-delta modulation power amplifier | |||
| 142 | 9350487 | System and method quadrature error detection and correction | |||
| 143 | 9349029 | Transmission apparatus for a wireless device | |||
| 144 | 9344315 | Transmitting system and receiving system, and transmitting method and receiving method | |||
| 145 | 9344302 | Loopback technique for IQ imbalance estimation for calibration in OFDM systems | |||
| 146 | 9344041 | Polar amplification transmitter distortion reduction | |||
| 147 | 9344038 | Tri-phase digital polar modulator | |||
| 148 | 9338044 | Method and apparatus to track gain variation in orthogonal frequency division multiplexing (OFDM) systems | |||
| 149 | 9338039 | Efficient signal classification in digital pre-distortion systems | |||
| 150 | 9331886 | Magnetic field data modem | |||
| 151 | 9331885 | Modulation with fundamental group | |||
| 152 | 9331884 | Method and apparatus for encoding and decoding for frequency and quadrature-amplitude modulation in wireless communication system | |||
| 153 | 9331875 | System and method for communication using orbital angular momentum with multiple layer overlay modulation | |||
| 154 | 9331635 | Quadrature modulator | |||
| 155 | 9325557 | Radio communication apparatus and pulse signal transmission method in radio communication apparatus | |||
| 156 | 9319261 | Transmission apparatus | |||
| 157 | 9319091 | Semiconductor device including first inductor of a spiral shape and a second inductor having an opening which is opposite the first inductor | |||
| 158 | 9313747 | Structured codebook for uniform circular array (UCA) | |||
| 159 | 9313078 | Pulse cancellation crest factor reduction with a low sampling rate | |||
| 160 | 9313077 | Method and frequency agile pre-distorted transmitter using programmable digital up and down conversion | |||
| 161 | 9313076 | Antenna modulation method applicable to wireless transmitter and transmitter using the same | |||
| 162 | 9313055 | Transmitter linearization | |||
| 163 | 9306791 | Method for designing an amplitude and phase shift keying constellation | |||
| 164 | 9306778 | Enabling modulation mode selection | |||
| 165 | 9306731 | Signal processing apparatus | |||
| 166 | 9300514 | OFDM generation apparatus in a multi-carrier data transmission system | |||
| 167 | 9300513 | Signal transmission device adjusting electrical characteristic value corresponding to logic level and signal transmitting method thereof | |||
| 168 | 9300444 | Wideband quadrature error correction | |||
| 169 | 9294382 | Communication device and method for enhancing energy efficiency | |||
| 170 | 9294329 | Emphasized signal point arrangement operation for compensating DC imbalance | |||
| 171 | 9294328 | In-phase and quadrature radio frequency digital-to-analog converter | |||
| 172 | 9288099 | Predistortion circuit and method for predistorting a signal | |||
| 173 | 9288091 | Modulation method and apparatus with consideration of adaptive hybrid automatic repeat request in wireless communication system | |||
| 174 | 9287833 | Capture buffer of digital predistortion systems | |||
| 175 | 9281972 | Multi-band radio-frequency digital predistortion | |||
| 176 | 9276800 | Single frequency synthesizer based FDD transceiver | |||
| 177 | 9276799 | Wireless transmission apparatus and distortion compensation method | |||
| 178 | 9276798 | Non-recursive digital calibration for joint-elimination of transmitter and receiver I/Q imbalances with minimized add-on hardware | |||
| 179 | 9276687 | Apparatus for transmitting broadcast signals, apparatus for receiving broadcast signals, method for transmitting broadcast signals and method for receiving broadcast signals | |||
| 180 | 9270416 | Multi-mode transmitter for highly-spectrally-efficient communications | |||
| 181 | 9264279 | Transmitter, receiver, and method for receiving and transmitting a radio frequency signal | |||
| 182 | 9264179 | Decision feedback equalizer for highly spectrally efficient communications | |||
| 183 | 9264144 | Transmission and reception of quad-subcarrier orthogonal frequency division multiplexed signals | |||
| 184 | 9264078 | Transmitter with quantization noise compensation | |||
| 185 | 9258159 | Transmitter and zero bits padding method thereof | |||
| 186 | 9258081 | High dynamic range AMAM predistortion | |||
| 187 | 9252986 | System and method for communication using orbital angular momentum with multiple layer overlay modulation | |||
| 188 | 9252822 | Adaptive non-linear model for highly-spectrally-efficient communications | |||
| 189 | 9246731 | Method and system for baseband predistortion linearization in multi-channel wideband communication systems | |||
| 190 | 9246525 | Device and method for predistortion | |||
| 191 | 9246510 | Apparatus and method for multilevel coding in communication systems | |||
| 192 | 9240919 | Polar modulator | |||
| 193 | 9240918 | Method, devices and computer program product for modulation and demodulation delivering OFDM/OQAM symbols | |||
| 194 | 9237054 | Distortion compensation device and distortion compensation device method | |||
| 195 | 9237053 | Discrete multi-tone systems for half-duplex IP links | |||
| 196 | 9236982 | PDSCH resource element mapping for three-cell joint transmission | |||
| 197 | 9236898 | Multi-band observation receiver | |||
| 198 | 9231805 | Device for carrier phase recovery | |||
| 199 | 9231804 | Digital broadcast transmitting device and exciter | |||
| 200 | 9231715 | I/Q mismatch compensation method and apparatus | |||
| 201 | 9231628 | Low-complexity, highly-spectrally-efficient communications | |||
| 202 | 9231624 | Time alignment for an amplification stage | |||
| 203 | 9231606 | Dither-less error feedback fractional-N frequency synthesizer systems and methods | |||
2015 | |||||
| 204 | 9225578 | High order modulation method, demapping method, and corresponding device | |||
| 205 | 9225577 | Exciter and quadrature error correction method | |||
| 206 | 9225576 | Resilient channel and broadcast modulation | |||
| 207 | 9225501 | Non-linear modeling of a physical system using look-up table with polynomial interpolation | |||
| 208 | 9225500 | Microwave backhaul system having a dual channel over a single interconnect | |||
| 209 | 9225349 | Dither-less multi-stage noise shaping fractional-N frequency synthesizer systems and methods | |||
| 210 | 9210025 | Method and apparatus for correcting in-phase signal and quadrature-phase signal | |||
| 211 | 9210009 | Digital pre-distortion filter system and method | |||
| 212 | 9209852 | Modular microwave backhaul outdoor unit | |||
| 213 | 9209843 | Fine phase estimation for highly spectrally efficient communications | |||
| 214 | 9209834 | Symbol mapping for binary coding | |||
| 215 | 9209826 | Radio frequency circuit | |||
| 216 | 9203555 | Optimum signal constellation design and mapping for few-mode fiber based LDPC-coded CO-OFDM | |||
| 217 | 9198144 | Power supply adjustment and polar modulation in a MIMO system | |||
| 218 | 9197309 | Systems and methods for providing signals of multiple active wireless transmitters | |||
| 219 | 9197300 | Wireless precoding methods | |||
| 220 | 9197259 | System and method for increasing bandwidth for digital predistortion in multi-channel wideband communication systems | |||
| 221 | 9197164 | RF power transmission, modulation, and amplification, including direct cartesian 2-branch embodiments | |||
| 222 | 9197163 | Systems, and methods of RF power transmission, modulation, and amplification, including embodiments for output stage protection | |||
| 223 | 9191261 | System and method for transmitting a quadrature amplitude modulation (QAM) waveform to a receiver | |||
| 224 | 9191250 | Extended bandwidth adaptive digital pre-distortion with reconfigurable analog front-ends | |||
| 225 | 9184976 | Method and system for I/Q mismatch calibration and compensation for wideband communication receivers | |||
| 226 | 9184974 | In-phase and quadrature radio frequency digital-to-analog converter | |||
| 227 | 9184945 | Method for compensating the frequency dependent phase imbalance | |||
| 228 | 9184834 | Method and apparatus for detection and correction of time skew in an optical transmitter | |||
| 229 | 9184773 | Apparatus and methods for signal generation, reception, and self-calibration | |||
| 230 | 9184710 | Digital predistortion of a power amplifier for signals comprising widely spaced carriers | |||
| 231 | 9179405 | Transmission device, transmission method, receiving device and receiving method | |||
| 232 | 9178740 | Peak-to-average power ratio reduction for QAM modulation with HD radio signals | |||
| 233 | 9178739 | Method of wireless communication with a multi-antenna receiver | |||
| 234 | 9178734 | Communications transmitter having high-efficiency combination modulator | |||
| 235 | 9178731 | Transmission apparatus for a wireless device using delta-sigma modulation | |||
| 236 | 9178541 | Cartesian digital power amplifier using coordinate rotation | |||
| 237 | 9172574 | Dynamic-range reduction of complex-valued baseband signals | |||
| 238 | 9172409 | Multi-path digital pre-distortion | |||
| 239 | 9167185 | Transmission and reception apparatus and transmission and reception system | |||
| 240 | 9166859 | Wireless communication apparatus and transmission power control method | |||
| 241 | 9166858 | Method for modulating an OQAM type multi-carrier signal, and corresponding computer program and modulator | |||
| 242 | 9166840 | Method of transmitting data samples with reduced bandwidth | |||
| 243 | 9166833 | Feed forward equalization for highly-spectrally-efficient communications | |||
| 244 | 9166707 | Transmitter, signal generation device, calibration method, and signal generation method | |||
| 245 | 9166680 | Apparatus and method for measuring IQ imbalance for optical receiver | |||
| 246 | 9160583 | Method and equipment for controlling radio-frequency signal | |||
| 247 | 9148324 | Daisy-chained ring of remote units for a distributed antenna system | |||
| 248 | 9148267 | Radio communication apparatus and radio communication method | |||
| 249 | 9148096 | Device and method for controlling an input signal of a power amplifier | |||
| 250 | 9143213 | Method and apparatus for multi-antenna transmission in uplink | |||
| 251 | 9143091 | Distortion compensating apparatus, transmitter, distortion compensating method, and transfer function calculating method | |||
| 252 | 9143088 | Control modules | |||
| 253 | 9137084 | Digitally controlled edge interpolator (DCEI) for digital to time converters (DTC) | |||
| 254 | 9137081 | Satellite navigational signal generating method generating device receiving method and receiving device | |||
| 255 | 9137078 | Daisy-chained ring of remote units for a distributed antenna system | |||
| 256 | 9137069 | Systems and methods to frequency shift unwanted signal components | |||
| 257 | 9135108 | Data processing device and data processing method | |||
| 258 | 9130815 | Method, receiver, transmitter and communication system for phase error compensation | |||
| 259 | 9130814 | Interleaving method and deinterleaving method | |||
| 260 | 9130808 | Apparatus and method for communication using near Golay sequence | |||
| 261 | 9130628 | Digital pre-distorter | |||
| 262 | 9130627 | Multi-mode receiver for highly-spectrally-efficient communications | |||
| 263 | 9130626 | Frequency dependent I/Q impairment compensation | |||
| 264 | 9130623 | User equipment and method for radio communication system | |||
| 265 | 9118285 | Compensation of a transmitter distortion | |||
| 266 | 9116368 | Optical modulation device and bias voltage control method | |||
| 267 | 9112761 | System and method for routing and up-converting narrowband channels | |||
| 268 | 9112649 | Method and apparatus for predicting signal characteristics for a nonlinear power amplifier | |||
| 269 | 9112515 | Geographic locating remote endpoint monitor device, system, and methodology thereof | |||
| 270 | 9106502 | Apparatus, system and method of in-phase/quadrature (I/Q) imbalance compensation | |||
| 271 | 9106501 | Quadrature power amplifier having increased efficiency | |||
| 272 | 9106500 | Systems and methods of RF power transmission, modulation, and amplification, including embodiments for error correction | |||
| 273 | 9106415 | Microwave backhaul system having a double capacity link | |||
| 274 | 9106304 | Correction of quadrature errors | |||
| 275 | 9106292 | Coarse phase estimation for highly-spectrally-efficient communications | |||
| 276 | 9106256 | Data processing device and data processing method for encoding/decoding information bits | |||
| 277 | 9100263 | Distortion compensation apparatus and distortion compensation method | |||
| 278 | 9100080 | Digital radios | |||
| 279 | 9100071 | Timing pilot generation for highly-spectrally-efficient communications | |||
| 280 | 9094278 | Apparatus, method, and system for transmitting and receiving high-speed data in point-to-point fixed wireless communication | |||
| 281 | 9094277 | Digital compensation technique using area efficient tri-state architecture | |||
| 282 | 9094022 | Geographic locating remote endpoint monitor device, system, and methodology thereof | |||
| 283 | 9088472 | System for compensating for I/Q impairments in wireless communication system | |||
| 284 | 9088471 | Quadrature combining and adjusting | |||
| 285 | 9088319 | RF transmitter architecture, integrated circuit device, wireless communication unit and method therefor | |||
| 286 | 9083402 | High frequency circuit and high frequency module including the same | |||
| 287 | 9077577 | System and method for communication using orbital angular momentum with multiple layer overlay modulation | |||
| 288 | 9077409 | Signal processing system and signal processing method | |||
| 289 | 9077391 | Transmitter front-end device for generating output signals on basis of polyphase modulation | |||
| 290 | 9077298 | Sampling circuit, communication device, distortion correction circuit, signal sampling method, and program | |||
| 291 | 9077293 | Envelope tracking system for MIMO | |||
| 292 | 9071496 | All-digital multi-standard transmitter architecture using delta-sigma modulators | |||
| 293 | 9071305 | Timing synchronization for reception of highly-spectrally-efficient communications | |||
| 294 | 9070062 | Streamlined apparatus and methods for RFID communication | |||
| 295 | 9065538 | Transmission-reception device | |||
| 296 | 9065491 | Adjusting phase imbalance between in-phase (I) and quadrature-phase (Q) signals | |||
| 297 | 9054936 | Semiconductor device having horseshoe and spiral shape inductors | |||
| 298 | 9054642 | Systems and methods to provide compensated feedback phase information | |||
| 299 | 9036737 | Polar modulation | |||
| 300 | 9026391 | Distortion estimation apparatus and method | |||
| 301 | 9025700 | Digital polar modulator for a switch mode RF power amplifier | |||
| 302 | 9025430 | System and method of modulation and coding scheme adjustment for a LTE shared data channel | |||
| 303 | 9020069 | Active general purpose hybrid | |||
| 304 | 9014300 | Switched-mode high-linearity transmitter using pulse width modulation | |||
| 305 | 9008221 | Spurious frequency attenuation servo | |||
| 306 | 8995573 | Octagonal quadrature amplitude modulation | |||
| 307 | 8995571 | Baseband digital pre-distortion architecture | |||
| 308 | 8976692 | D.C. offset estimation | |||
| 309 | 8964895 | WLAN transmitter having high data throughput | |||
| 310 | 8953712 | Method for data modulation and transmitter using the same | |||
| 311 | 8948304 | Apparatus and method for transmitting and receiving data in a communication or broadcasting system using linear block code | |||
| 312 | 8938024 | Preamble generating device, preamble generating method, and non-transitory computer-readable recording medium storing a program | |||
| 313 | 8929484 | Communications transmitter having high-efficiency combination modulator | |||
2014 | |||||
| 314 | 8924823 | System and method for cycle slip correction | |||
| 315 | 8908799 | Systems and methods for communicating using ASK or QAM with uneven symbol constellation | |||
| 316 | 8890634 | Multiplexed configurable sigma delta modulators for noise shaping in a 25-percent duty cycle digital transmitter | |||
| 317 | 8885766 | Optical communication interface utilizing N-dimensional double square quadrature amplitude modulation | |||
| 318 | 8879667 | Layer shifting in open loop multiple-input, multiple-output communications | |||
| 319 | 8867662 | Multidimensional constellations for coded transmission | |||
| 320 | 8867658 | Multicarrier-signal receiving apparatus and multicarrier-signal transmitting apparatus | |||
| 321 | 8861642 | Method and apparatus for mapping quadrature amplitude modulation symbol | |||
| 322 | 8855235 | Circuit transmission apparatus and transmission method | |||
| 323 | 8848831 | Direct digital synthesis of quadrature modulated signals | |||
| 324 | 8848830 | Method for providing a modulation scheme | |||
| 325 | 8842761 | Methodology and method and apparatus for signaling with capacity optimized constellations | |||
| 326 | 8837618 | Transmission processing method, transmitter, reception processing method, and receiver | |||
| 327 | 8817911 | Integrated circuit for controlling a process | |||
| 328 | 8817910 | Systems and methods for communicating using ASK or QAM with uneven symbol constellation | |||
| 329 | 8811533 | Communications transmitter having high-efficiency combination modulator | |||
| 330 | 8798200 | Constellation mapping method | |||
| 331 | 8792546 | Transmission circuit | |||
| 332 | 8787477 | Methods for assigning codewoods to points in hexagonal constellations in digital communication systems | |||
| 333 | 8781026 | Digital quadrature transmitter using generalized coordinates | |||
| 334 | 8755774 | Broadcast transmitting apparatus and method for processing broadcast signals | |||
| 335 | 8755462 | Frequency offset estimator for upstream cable signals | |||
| 336 | 8750420 | Method and apparatus for generating modulated radio waves | |||
| 337 | 8750410 | Multi-band power amplifier digital predistortion system and method | |||
| 338 | 8744084 | Methods, systems, and computer readable media for scrambled communication of data to, from, or over a medium | |||
| 339 | 8731103 | Multicarrier-signal receiving apparatus and multicarrier-signal transmitting apparatus | |||
| 340 | 8724738 | Multidimensional constellations for coded transmission | |||
| 341 | 8724735 | Quadrature modulator, signal generating device, and quadrature modulation method | |||
| 342 | 8718189 | Digital broadcasting systems using parallel concatenated coding of bit-complementary bitstreams | |||
| 343 | 8711955 | Spreading technique applied to broadband mobile communications by satelite relying on DVB-RCS | |||
| 344 | 8693576 | Method of transmitting symbols | |||
| 345 | 8693575 | Wireless precoding methods | |||
| 346 | 8675774 | Constellation rearrangement for transmit diversity schemes | |||
| 347 | 8675771 | Log likelihood ratio arithmetic circuit, transmission apparatus, log likelihood ratio arithmetic method, and program | |||
| 348 | 8674758 | Method and apparatus for improved high order modulation | |||
| 349 | 8665992 | Pilot symbol generation for highly-spectrally-efficient communications | |||
| 350 | 8660208 | Apparatus and methods for QAM modulation using dual polar modulation | |||
| 351 | 8625716 | Method and apparatus for performing HARQ in wireless communication system | |||
| 352 | 8625702 | Transmitting apparatus, transmission method, receiving apparatus, and receiving method | |||
2013 | |||||
| 353 | 8611461 | Method and device for modulating the information of TFCI | |||
| 354 | 8605821 | Apparatus and method for scrambling in a wireless communication system | |||
| 355 | 8605820 | Method of transmitting data in wireless communication system | |||
| 356 | 8594233 | Quadrature communications device with power combiner and related methods | |||
| 357 | 8588335 | Radio communication device, radio communication method, and communication system using PADM transmission diversity | |||
| 358 | 8571123 | Apparatus and method for mapping symbol | |||
| 359 | 8565344 | Transmission circuit and communication device | |||
| 360 | 8548094 | Transmission device and modulation method | |||
| 361 | 8548079 | Transmitter, transmission method, receiver, and reception method | |||
| 362 | 8537909 | Method for transmitting signals using HARQ scheme to guarantee constellation rearrangement gain | |||
| 363 | 8520774 | Generation of radio frequency outputs | |||
| 364 | 8509136 | Network coding method and network coding apparatus | |||
| 365 | 8494087 | Method and system to reduce PAPR in single carrier and SCBT communications systems | |||
| 366 | 8488692 | Radio transmission device and radio transmission method | |||
| 367 | 8422579 | Quadrature amplitude modulation via modified-square signal point constellation | |||
| 368 | 8416884 | Digital RF transmitter optimized for linear quantized IQ up conversion | |||
| 369 | 8406283 | Modulation apparatus, test apparatus and correction method | |||
| 370 | 8400228 | Redundancy system for a telecommunication system and related methods | |||
| 371 | 8391407 | Data transmission device and method thereof, and data reception device and method thereof | |||
| 372 | 8369449 | Method and system of diversity transmission of data employing M-point QAM modulation | |||
| 373 | 8369448 | Bit mapping scheme for an LDPC coded 32APSK system | |||
| 374 | 8363752 | Methods and apparatus for reducing the average-to-minimum magnitude ratio of communications signals in communications transmitters | |||
| 375 | 8358719 | Method and device for the compensation of signal errors in IQ-modulators | |||
| 376 | 8355463 | Radio transmission device and modulation method | |||
| 377 | 8355427 | System and method for descrambling the phase of carriers in a multicarrier communications system | |||
| 378 | 8351870 | Systems and methods of RF power transmission, modulation, and amplification, including cartesian 4-branch embodiments | |||
2012 | |||||
| 379 | 8319569 | Quadrature amplitude modulator and quadrature amplitude modulation method | |||
| 380 | 8295399 | Transmission apparatus, reception apparatus and digital radio communication method | |||
| 381 | 8295398 | Data re-transferring method based on bit transformation | |||
| 382 | 8290087 | Sample rate conversion in delta-sigma modulators | |||
| 383 | 8284865 | Data transmitting and receiving method using phase shift based precoding and transceiver supporting the same | |||
| 384 | 8284862 | Method for encoding data symbols with implicitly embedded pilot symbols in resource blocks for wireless networks | |||
| 385 | 8275069 | Transmitting apparatus, transmission method and signal generating apparatus | |||
| 386 | 8275067 | Adaptive turbo peak mitigation for peak-to-average ratio (PAR) reduction using reserved tones | |||
| 387 | 8270531 | Data transmissions in a mobile communication system employing diversity and constellation rearrangement of a 16 QAM scheme | |||
| 388 | 8270511 | Methodology and method and appartus for signaling with capacity optimized constellations | |||
| 389 | 8259848 | Hierarchical modulation for communication channels in single-carrier frequency division multiple access | |||
| 390 | 8249190 | Dual carrier modulation | |||
| 391 | 8238474 | Trellis modulation protocols for a VDSL system | |||
| 392 | 8218680 | Radio communication apparatus capable of switching modulation schemes | |||
| 393 | 8218679 | Method and system for creating quadrature modulation signal constellations with arbitrary spectral efficiency | |||
| 394 | 8218674 | OFDM transmitter with adaptive bit interleaver for adaptive bit loading and method for OFDM communications | |||
| 395 | 8218610 | System and method for descrambling the phase of carriers in a multicarrier communications system | |||
| 396 | 8208572 | Method for transmitting and receiving quadrature amplitude modulation signals, a system for carrying out said method, a machine-readable carrier and the use of a method for synchronously receiving quadrature amplitude modulation signals | |||
| 397 | 8204140 | Subscriber unit and method for variable forward error correction (FEC) decoding | |||
| 398 | 8203394 | RF vector modulator for beamforming | |||
| 399 | 8183951 | Modulator | |||
| 400 | 8179783 | System and method of modulation and coding scheme adjustment for a LTE shared data channel | |||
| 401 | 8149902 | Methods to relax the second order intercept point of transceivers | |||
| 402 | 8139676 | Wireless communication unit, linearised transmitter circuit and method of linearising therein | |||
| 403 | 8111765 | Communication apparatus, communication method, and integrated circuit | |||
| 404 | 8102942 | VSB modulation apparatus and method for generating a VSB-modulated wave | |||
| 405 | 8090008 | System and method for scrambling the phase of the carriers in a multicarrier communications system | |||
2011 | |||||
| 406 | 8085108 | Digital polar radio frequency transmitting device with a radiofrequency reference oscillator and an integrated circuit comprising such device | |||
| 407 | 8081695 | Channel estimation using frequency smoothing | |||
| 408 | 8077800 | Transmitting apparatus with bit arrangement method | |||
| 409 | 8073041 | System and method for descrambling the phase of the carriers in a multicarrier communications system | |||
| 410 | 8059751 | Frequency dependent phase rotation prior to mapping in an OFDM transmitter | |||
| 411 | 8059750 | Method and apparatus for generating training sequence code in a communication system | |||
| 412 | 8050355 | Transmitter and receiver using pseudo-orthogonal code | |||
| 413 | 8040974 | Shift space-time coding for digital video broadcasting systems | |||
| 414 | 8036301 | Radio transmitter with reduced power consumption | |||
| 415 | 8005163 | Constellation rearrangement for transmit diversity schemes | |||
| 416 | 8000410 | Bit reliability equalization by modulation switching for HARQ | |||
| 417 | 7983630 | Digital IF wireless transmitter, RF modulator, and RF modulating method | |||
| 418 | 7983359 | Synchronization techniques for polar transmitters | |||
| 419 | 7965791 | Transmitting apparatus with bit arrangement method | |||
| 420 | 7965761 | Multicarrier sub-layer for direct sequence channel and multiple-access coding | |||
| 421 | 7961814 | Method for using a symbol mapper using a symbol mapping scheme to generate modulation symbols according to a different symbol mapping scheme and a method for generating a symbol mapping scheme | |||
| 422 | 7961813 | Multi-value modulation/demodulation method and multi-value modulation/demodulation device | |||
| 423 | 7961805 | Method for the coding of an OFDM/OQAM signal using symbols with complex values, and corresponding signal, devices and computer programs | |||
| 424 | 7953379 | Method and system for calibrating quadrature modulators | |||
| 425 | 7953177 | Radio communication apparatus capable of switching modulation schemes | |||
| 426 | 7933352 | Cross QAM modulation-based symbol mapping method and apparatus in a mobile communication system | |||
| 427 | 7925228 | Method and system for calibrating quadrature modulators | |||
| 428 | 7920647 | Receiving apparatus and transmitting apparatus | |||
| 429 | 7920645 | Data transmissions in a mobile communication system employing diversity and constellation rearrangement of a 16 QAM scheme | |||
| 430 | 7907641 | Method and apparatus for providing signal acquisition and frame synchronization in a hierarchical modulation scheme | |||
| 431 | 7903759 | Method for transmitting and receiving quadrature-amplitude modulation signals, system for implementing thereof, machine-readable medium, and application of the method for synchronizing reception of amplitude modulation signals | |||
| 432 | 7873120 | Forward error correction coding for AM 9kHz and 10kHz in-band on-channel digital audio broadcasting systems | |||
| 433 | 7872545 | Jumpless phase modulation in a polar modulation environment | |||
| 434 | 7872544 | Modulation/demodulation apparatus and modulation/demodulation method | |||
| 435 | 7864883 | Method and apparatus for modulating digital signal using equilateral triangular constellation | |||
| 436 | 7864882 | Method and apparatus for generating constant envelope modulation using a quadrature transmitter | |||
2010 | |||||
| 437 | 7860186 | Transmitting apparatus with bit arrangement method | |||
| 438 | 7852969 | System and method for dynamic calibration of a quadrature encoder | |||
| 439 | 7848453 | Independent LO IQ tuning for improved image rejection | |||
| 440 | 7848452 | Distortion compensating apparatus | |||
| 441 | 7844015 | Method for calibrating a quadrature modulator and a modulation system | |||
| 442 | 7843802 | Method for uplink multiuser OFM with constrained inputs | |||
| 443 | 7817747 | Precise delay alignment between amplitude and phase/frequency modulation paths in a digital polar transmitter | |||
| 444 | 7809078 | OFDM modulator | |||
| 445 | 7801246 | Multi-mode communication device for generating constant envelope modulated signals using a quadrature modulator | |||
| 446 | 7778354 | Communicating apparatus, method of calculating set value of orthogonal error compensation and orthogonal error compensation program | |||
| 447 | 7773693 | Apparatus and method for direct quadrature power amplifier modulation | |||
| 448 | 7769104 | System and method for scrambling the phase of the carriers in a multicarrier communications system | |||
| 449 | 7756217 | Method and system for a robust initialization symbol for digital duplexing | |||
| 450 | 7742542 | Phase correlated quadrature amplitude modulation | |||
| 451 | 7738590 | Radio communication apparatus capable of switching modulation schemes | |||
| 452 | 7724840 | RF transmitter with predistortion and method therefor | |||
| 453 | 7724805 | Fast RMS measurement of input I/Q signals in a W-CDMA system | |||
| 454 | 7719376 | Avoidance of discontinuities when switching between modulation schemes | |||
| 455 | 7715809 | EDGE modulator | |||
| 456 | 7711064 | Method for digital wireless communications | |||
| 457 | 7697654 | Determining effective carrier-to-interference plus noise ratio in OFDMA systems | |||
| 458 | 7672398 | Method and system for adjusting the amplitude and phase characteristics of real and imaginary signal components of complex signals processed by an analog radio transmitter | |||
| 459 | 7653148 | System and method for delivery of video, content on demand and IP packets | |||
2009 | |||||
| 460 | 7639756 | Apparatus and method for adjusting quadrature modulator, communication apparatus and program | |||
| 461 | 7630455 | Apparatus and method for digital wireless communication | |||
| 462 | 7630453 | Multi-level modulation method and system | |||
| 463 | 7623000 | Hybrid linear and polar modulation apparatus | |||
| 464 | 7616702 | Transmission circuit and communication apparatus comprising the same | |||
| 465 | 7599446 | Modulation and demodulation based on hierarchical modulation | |||
| 466 | 7570711 | Quadrature LINC transmission method and apparatus | |||
| 467 | 7548591 | Quadrature modulator and calibration method | |||
| 468 | 7545882 | Transmission apparatus, reception apparatus and digital radio communication method | |||
| 469 | 7539270 | Method and apparatus to interleave bits across symbols from different constellations | |||
| 470 | 7535975 | QAM mapping and bit labeling or bit-interleaved coded modulation | |||
| 471 | 7532679 | Hybrid polar/cartesian digital modulator | |||
| 472 | 7532673 | Transport of modulation symbols in a communications system | |||
| 473 | 7499696 | Method to optimize hierarchical modulation for a diversity system | |||
| 474 | 7499503 | Parallel concatenated code with soft-in soft-out interactive turbo decoder | |||
| 475 | 7492832 | Method and apparatus for digital vector QAM modulator | |||
2008 | |||||
| 476 | 7471741 | Method, apparatus and system for high-speed transmission on fiber optic channel | |||
| 477 | 7471740 | ARQ retransmission with reordering scheme employing multiple redundancy versions and receiver/transmitter therefor | |||
| 478 | 7471640 | Scalable QAM system and method | |||
| 479 | 7460614 | Method and system for adjusting the amplitude and phase characteristics of real and imaginary signal components of complex signals processed by an analog radio transmitter | |||
| 480 | 7453957 | Method and apparatus for transmitting high speed data by spectral decomposition of the signaling space | |||
| 481 | 7450660 | Apparatus and method for digital modulation | |||
| 482 | 7443924 | Residual carrier and side band processing system and method | |||
| 483 | 7412008 | Programmable phase mapping and phase rotation modulator and method | |||
| 484 | 7379509 | Digital intermediate frequency QAM modulator using parallel processing | |||
| 485 | 7359457 | Transmission apparatus, reception apparatus and digital radio communication method | |||
| 486 | 7356092 | Wireless communication system and communication semiconductor integrated circuit device | |||
| 487 | 7346123 | Quadrature modulator | |||
| 488 | 7340008 | Method and apparatus for rearranging codeword sequence in a communication system | |||
2007 | |||||
| 489 | 7289573 | Modulator/transmitter apparatus and method | |||
| 490 | 7280606 | Apparatus and method for transmitting/receiving data in a CDMA mobile communication system | |||
| 491 | 7276985 | Transmission modulation apparatus, communication apparatus and mobile wireless apparatus | |||
| 492 | 7274753 | Method of implementing modulation and modulator | |||
| 493 | 7251293 | Digital pre-distortion for the linearization of power amplifiers with asymmetrical characteristics | |||
| 494 | 7245667 | Method of transmitting data | |||
| 495 | 7236757 | High-speed multi-channel communications transceiver with inter-channel interference filter | |||
| 496 | 7206353 | Mobile communication apparatus including an antenna array and mobile communication method | |||
| 497 | 7203248 | Impairment sensitive selection of constellation points for communication across a channel | |||
| 498 | 7177371 | Methods and apparatus for transmitting and receiving data over a communications network in the presence of interference | |||
| 499 | 7173978 | Method and system for turbo encoding in ADSL | |||
| 500 | 7164328 | Direct digital amplitude modulator | |||
| 501 | 7161991 | Multi-dimensional fractional number of bits modulation scheme | |||
2006 | |||||
| 502 | 7151805 | System for generating an analogue I/Q signal from two or more data streams | |||
| 503 | 7145964 | Maximizing data rate by adjusting codes and code rates in CDMA system | |||
| 504 | 7145963 | Method and apparatus for multiple phase splitting for dual band IQ subharmonic mixer drive chains | |||
| 505 | 7136425 | Combining frequency multiplication and modulation | |||
| 506 | 7133462 | Method and apparatus for determining modulation scheme for retransmission in a communication system | |||
| 507 | 7130358 | Method and apparatus for rearranging codeword sequence in a communication system | |||
| 508 | 7127006 | Method for transmitting frames comprising bursts modulated with different modulation schemes on radio communication channel | |||
| 509 | 7110470 | ARQ retransmission with reordering scheme employing multiple redundancy versions and receiver/transmitter therefor | |||
| 510 | 7103112 | Transmit frequency domain equalizer | |||
| 511 | 7092454 | Method and apparatus of compensating imbalance of a modulator | |||
| 512 | 7079585 | Gray encoding for hierarchical QAM transmission systems | |||
| 513 | 7078981 | 16 QAM modulator and method of 16 QAM modulation | |||
| 514 | 7072421 | IQ modulation systems and methods that use separate phase and amplitude signal paths and perform modulation within a phase locked loop | |||
| 515 | 7068730 | Wideband multi-channel quadrature amplitude modulation of cable television signals | |||
| 516 | 7065158 | Detection method for phase-modulated symbols with a correlator-bank | |||
| 517 | 7065145 | Digital carrierless amplitude and phase modulation (CAP) transmitter using vector arithmetic structure (VAS) | |||
| 518 | 7054658 | Pulse shaping according to modulation scheme | |||
| 519 | 7046739 | Pre-distortion of input signals to form constant envelope signal outputs | |||
| 520 | 7039126 | M-ary signal constellations suitable for non-linear amplification | |||
| 521 | 7012953 | Method and apparatus for transmitting high speed data by spectral decomposition of the signaling space | |||
| 522 | 6996190 | Method of encoding a signal, transmitter and receiver | |||
| 523 | 6996189 | Symmetric spherical QAM constellation | |||
| 524 | 6993092 | Transmission apparatus, reception apparatus and digital radio communication method | |||
| 525 | 6990155 | Wireless quadrature modulator transmitter using E/O and O/E connectives | |||
| 526 | 6987814 | Distortion compensating device | |||
2005 | |||||
| 527 | 6968016 | Device and method for I/Q modulation, frequency translation and upsampling | |||
| 528 | 6963622 | Bit labeling for amplitude phase shift constellation used with low density parity check (LDPC) codes | |||
| 529 | 6963621 | Method and apparatus for reducing distortion of digital data | |||
| 530 | 6957044 | Satellite communication apparatus | |||
| 531 | 6947713 | Amplitude- and frequency- or phase-modulated radio frequency signal generator and the transmitter incorporating same | |||
| 532 | 6947712 | Group delay precompensator for broadband radio frequency transmitter and method of operating the same | |||
| 533 | 6944250 | Variable rate modulator | |||
| 534 | 6940919 | Bandpass predistortion method and apparatus for radio transmission | |||
| 535 | 6937848 | Method and device for digital-to-RF conversion | |||
| 536 | 6937669 | Digital predistortion system for linearizing a power amplifier | |||
| 537 | 6937668 | Method of and apparatus for performing modulation | |||
| 538 | 6937617 | Apparatus and method for trellis encoding data for transmission in digital data transmission systems | |||
| 539 | 6928101 | FMOD transceivers including continuous and burst operated TDMA, FDMA, spread spectrum CDMA, WCDMA and CSMA | |||
| 540 | 6914943 | Signal modulation circuit and signal modulation method | |||
| 541 | 6904267 | Amplifying device | |||
| 542 | 6904099 | Digital modulation signal generator | |||
| 543 | 6894657 | Bi-directional vector modulator | |||
| 544 | 6885322 | Apparatus and method for transmitter phase shift compensation | |||
| 545 | 6885241 | Type-based baseband predistorter function estimation technique for non-linear circuits | |||
| 546 | 6879641 | Transmit pre-equalization in a modem environment | |||
| 547 | 6873860 | Base transceiver station with distortion compensation | |||
| 548 | 6870435 | Electromagnetic wave transmitter, receiver and transceiver systems, methods and articles of manufacture | |||
| 549 | 6870429 | Variable rate modulator | |||
| 550 | 6864745 | Distortion compensation device | |||
| 551 | 6853691 | Vector modulator using amplitude invariant phase shifter | |||
2004 | |||||
| 552 | 6836646 | Circuit and method for compensating for non-linear distortion | |||
| 553 | 6836517 | Distortion compensating apparatus | |||
| 554 | 6831954 | Apparatus, and associated method, for compensating for distortion introduced upon a send signal by an amplifier | |||
| 555 | 6831526 | Phase and amplitude digital modulation circuit and method | |||
| 556 | 6809607 | Circuit and method for compensating for non-linear distortion | |||
| 557 | 6801582 | Apparatus and method for improving an output signal from a nonlinear device through dynamic signal pre-distortion based upon Lagrange interpolation | |||
| 558 | 6798844 | Correction of phase and amplitude imbalance of I/Q modulator | |||
| 559 | 6795693 | Method for controlling the transmitter part of a radio transceiver and a corresponding radio transceiver | |||
| 560 | 6771710 | Partial frequency offset digital upconversion | |||
| 561 | 6771709 | System and method for direct transmitter self-calibration | |||
| 562 | 6763227 | Systems and methods for modulator calibration | |||
| 563 | 6757261 | GSM transceiver with time division duplexed operations for receiving data, monitoring signal strength and transmitting data during a single time frame | |||
| 564 | 6754285 | Signal conditioning techniques in DMT-based transmissions | |||
| 565 | 6751269 | Bit-interleaved coded modulation for CATV upstream channels | |||
| 566 | 6751268 | Bandpass predistorting expansion method and apparatus for digital radio transmission | |||
| 567 | 6741662 | Transmitter linearization using fast predistortion | |||
| 568 | 6738431 | Method for neutralizing a transmitter tube | |||
| 569 | 6738415 | Bi-directional communication system | |||
| 570 | 6737918 | Distortion compensation apparatus | |||
| 571 | 6731694 | Isolator eliminator for a linear transmitter | |||
| 572 | 6731693 | System of and method for compensating a baseband signal to reduce third order modulation distortion | |||
| 573 | 6724831 | Pre-distortion apparatus and method thereof | |||
| 574 | 6724829 | Automatic power control in a data transmission system | |||
| 575 | 6714601 | Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator | |||
| 576 | 6711218 | System and method for received signal decoding | |||
| 577 | 6711216 | Method and apparatus for an ultra-wideband radio utilizing MEMS filtering | |||
| 578 | 6707857 | Reference signal pre-distortion for transmitter with frequency synthesizer based phase encoding | |||
| 579 | 6700453 | Amplitude imbalance compensation of quadrature modulator | |||
| 580 | 6693970 | QAM modulator | |||
| 581 | 6693956 | Power amplifier having negative feedback circuit for transmitter | |||
| 582 | 6690743 | Compensation of delay in linearization loop of power amplifier | |||
| 583 | 6687311 | Direct QAM modulator with digital feedback control and complex pre-equalization for phase and amplitude distortion | |||
| 584 | 6683917 | Base band signal processing circuit capable of improving both noise characteristic and distortion characteristic | |||
| 585 | 6678334 | Methods of reducing the complexity of trellis-based scalar-vector quantizers | |||
| 586 | 6674823 | Variable rate modulator | |||
| 587 | 6674811 | Efficient pre-distorted 12/4 QAM modulator | |||
| 588 | 6674808 | Post-amplifier filter rejection equalization | |||
2003 | |||||
| 589 | 6671337 | Carrier modulator for use in a transmitter or transceiver | |||
| 590 | 6671336 | Gain controller for circuit having in-phase and quadrature channels, and method | |||
| 591 | 6670900 | Quadrature mismatch compensation | |||
| 592 | 6665308 | Apparatus and method for equalization in distributed digital data transmission systems | |||
| 593 | 6657510 | Corrective phase quadrature modulator system and method | |||
| 594 | 6654426 | Correction of nonlinearity of I/Q modulator | |||
| 595 | 6653909 | Digital signals, radio transmitter circuits and method | |||
| 596 | 6650711 | Quadrature modulation with reduced phase-error distortion | |||
| 597 | 6647074 | Removal of clock related artifacts from an offset QAM generated VSB signal | |||
| 598 | 6647073 | Linearisation and modulation device | |||
| 599 | 6636555 | Amplitude limitation | |||
| 600 | 6633199 | Amplifier circuit, radio transmitter, method and use | |||
| 601 | 6631254 | Apparatus for producing a radio-frequency signal | |||
| 602 | 6621876 | System and method to reduce phase modulation bandwidth | |||
| 603 | 6614854 | System and method for adaptive predistortion | |||
| 604 | 6611568 | Variable rate modulator | |||
| 605 | 6611567 | Method and apparatus for pulse shaping | |||
| 606 | 6608532 | Circuit configuration for producing a quadrature-amplitude-modulated transmission signal | |||
| 607 | 6593827 | Modulating array transmitter autocalibration method and system | |||
| 608 | 6591090 | Predistortion control for power reduction | |||
| 609 | 6577898 | Bi-directional telemetry system and method for transmitting data at high transmission rate | |||
| 610 | 6574286 | Modulation system having on-line IQ calibration | |||
| 611 | 6570933 | Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator | |||
| 612 | 6570914 | Amplitude calculation circuit | |||
| 613 | 6567478 | Radio apparatus having distortion compensating function | |||
| 614 | 6560293 | Apparatus and method for FM remodulation of envelope modulated data signals | |||
| 615 | 6559994 | Optical fiber transmitter for long distance subcarrier multiplexed lightwave systems | |||
| 616 | 6535562 | Method and apparatus for rotating the phase of a complex signal | |||
| 617 | 6535073 | Device and method for I/Q modulation, frequency translation and upsampling | |||
| 618 | 6519010 | Broadcast transmission system with sampling and correction arrangement for correcting distortion caused by amplifying and signal conditioning components | |||
| 619 | 6515712 | Signal distortion compensating apparatus and method in digital TV translator | |||
| 620 | 6512800 | Method and system for correcting phase and amplitude imbalances of a quadrature modulated RF signal | |||
| 621 | 6507625 | Digital modulator and digital demodulator | |||
| 622 | 6504879 | Digital modulation apparatus | |||
2002 | |||||
| 623 | 6498823 | Variable rate modulator | |||
| 624 | 6480704 | Method and arrangement for forming a transmission signal | |||
| 625 | 6463093 | METHOD AND APPARATUS TO REDUCE SPURIOUS AND INTERMODULATION PRODUCTS IN WIRELESS BROADBAND MULTI-CARRIER DIGITAL TRANSCEIVER EQUIPMENT THROUGH STATIC NON-LINEARITY CORRECTION OF DIGITAL CONVERSION COMPONENTS | |||
| 626 | 6449465 | Method and apparatus for linear amplification of a radio frequency signal | |||
| 627 | 6449303 | System and method for peak power reduction in multiple carrier communications systems | |||
| 628 | 6449302 | System and method for peak power reduction in spread spectrum communications systems | |||
| 629 | 6445749 | FMOD transceivers including continuous and burst operated TDMA, FDMA, spread spectrum CDMA, WCDMA, and CSMA | |||
| 630 | 6445748 | Non linear amplitude precorrection for HDTV transmitter | |||
| 631 | 6442192 | CDMA type multiple transmission apparatus and CDMA type multiple transmission method | |||
| 632 | 6441694 | Method and apparatus for generating digitally modulated signals | |||
| 633 | 6434199 | 2N-QAM macrocell | |||
| 634 | 6433604 | Phase adjustment technique | |||
| 635 | 6430228 | Digital QAM modulator using post filtering carrier recombination | |||
| 636 | 6429798 | Combined transmit filter and D-to-A converter | |||
| 637 | 6421398 | Modulation system having on-line IQ calibration | |||
| 638 | 6421397 | Modulation system having on-line IQ calibration | |||
| 639 | 6421396 | Variable rate modulator | |||
| 640 | 6418173 | Transmission Apparatus | |||
| 641 | 6411655 | Systems and methods for converting a stream of complex numbers into an amplitude and phase-modulated radio power signal | |||
| 642 | 6400777 | Linear modulator | |||
| 643 | 6400774 | Nonlinearity-caused distortion compensating system | |||
| 644 | 6400415 | System and method for predistorting signals to be amplified | |||
| 645 | 6400233 | Method and apparatus for compensating for distortion in IQ modulators | |||
| 646 | 6396345 | Phase and amplitude detector and method of determining errors | |||
| 647 | 6393258 | PROCESS AND SYSTEM FOR ADJUSTING THE LEVEL OF THE SPURIOUS LINES OF THE OUTPUT FREQUENCY SPECTRUM OF A SINGLE-SIDEBAND FREQUENCY TRANSPOSITION DEVICE, IN PARTICULAR INCORPORATED INTO A MOBILE TELEPHONE | |||
| 648 | 6385439 | Linear RF power amplifier with optically activated switches | |||
| 649 | 6384677 | Power amplifier having negative feedback circuit for transmitter | |||
| 650 | 6373902 | Device and method for linearizing transmitter in digital communication system | |||
| 651 | 6373901 | Method and apparatus for conditioning modulated signals using window expansion | |||
| 652 | 6366619 | Constrained-envelope transmitter and method therefor | |||
| 653 | 6356555 | Apparatus and method for digital data transmission using orthogonal codes | |||
| 654 | 6351677 | Method and device in a telecommunication system | |||
| 655 | 6339621 | One bit digital quadrature vector modulator | |||
| 656 | 6335951 | Programmable waveform generator for a global positioning system | |||
| 657 | 6335767 | Broadcast transmission system with distributed correction | |||
| 658 | 6335766 | System and method for transmitting advanced television signals | |||
2001 | |||||
| 659 | 6307868 | Apparatus and method for SCDMA digital data transmission using orthogonal codes and a head end modem with no tracking loops | |||
| 660 | 6298096 | Method and apparatus for determination of predistortion parameters for a quadrature modulator | |||
| 661 | 6285412 | Adaptive pre-equalization apparatus for correcting linear distortion of a non-ideal data transmission system | |||
| 662 | 6282411 | Mobile communication terminal device | |||
| 663 | 6278743 | Non linear amplitude precorrection for HDTV transmitter | |||
| 664 | 6272326 | Distortion compensation address generator, distortion compensating circuit, and transmitter | |||
| 665 | 6269125 | System and method for trellis encoding a digital signal | |||
| 666 | 6266517 | Method and apparatus for correcting distortion in a transmitter | |||
| 667 | 6265949 | Phase compensation apparatus and method for a digital modulator | |||
| 668 | 6252912 | Adaptive predistortion system | |||
| 669 | 6243422 | Waveform shaping method and equipment | |||
| 670 | 6240142 | Quadrature modulator and demodulator | |||
| 671 | 6236837 | Polynomial Predistortion linearizing device, method, phone and base station | |||
| 672 | 6208698 | Quadrature modulator imbalance estimator and modulator stage using it | |||
| 673 | 6195396 | Encoding/decoding system using 16-QAM modulation encoded in multi-level blocks | |||
| 674 | 6194963 | Circuit and method for I/Q modulation with independent, high efficiency amplitude modulation | |||
| 675 | 6185259 | Transmitter/receiver for GMSK and offset-QAM | |||
| 676 | 6185255 | System and Method for exciting advanced television signals | |||
| 677 | 6181199 | Power IQ modulation systems and methods | |||
| 678 | 6175599 | Method and apparatus for transmitting and receiving digital data over a bandpass channel | |||
| 679 | 6169463 | Quadrature modulator with set-and-forget carrier leakage compensation | |||
2000 | |||||
| 680 | 6166774 | Combining NTSC visual and aural signals with DTV signals | |||
| 681 | 6166598 | Power amplifying circuit with supply adjust to control adjacent and alternate channel power | |||
| 682 | 6157254 | Double side band pilot technique for a control system that reduces distortion produced by electrical circuits | |||
| 683 | 6154456 | Apparatus and method for digital data transmission using orthogonal codes | |||
| 684 | 6144712 | Variable rate modulator | |||
| 685 | 6141387 | Digital QAM modulator using post filtering carrier recombination | |||
| 686 | 6137841 | Signal power adjustment for QAM communication systems | |||
| 687 | 6125266 | Dual band architectures for mobile stations having transmitter linearization feedback | |||
| 688 | 6108385 | Method and apparatus for reducing intermodulation distortion in digital wideband transmission systems | |||
| 689 | 6104761 | Constrained-envelope digital-communications transmission system and method therefor | |||
| 690 | 6094458 | Arrangements and methods for generating a radio frequency signal | |||
| 691 | 6091941 | Radio apparatus | |||
| 692 | 6081698 | Radio apparatus and offset compensating method | |||
| 693 | 6081158 | Adaptive pre-distortion apparatus for linearizing an amplifier output within a data transmission system | |||
| 694 | 6078628 | Non-linear constant envelope modulator and transmit architecture | |||
| 695 | 6055021 | System and method for obtaining synchronization to a digital frame | |||
| 696 | 6046649 | Communication system employing paired power amplifiers and drift compensation feedback control loops | |||
| 697 | 6044117 | Peak clipping circuit provided in a quadrature modulator and a method of clipping peak levels of in-phase and quadrature signals | |||
| 698 | 6034999 | Burst signal transmitter capable of producing correct transmission output in initial burst signal | |||
1999 | |||||
| 699 | 6002923 | Signal generation in a communications transmitter | |||
| 700 | 5991308 | Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant | |||
| 701 | 5987072 | Phase modulation scheme and apparatus | |||
| 702 | 5987071 | Digital modulator and digital demodulator | |||
| 703 | 5982818 | Method for implementing trellis codes for ISI channels | |||
| 704 | 5973559 | Transmitter for high frequency signals | |||
| 705 | 5966376 | Apparatus and method for digital data transmission using orthogonal cyclic codes | |||
| 706 | 5929703 | Method and device for modeling AM-AM and AM-PM characteristics of an amplifier, and corresponding predistortion method | |||
| 707 | 5926507 | Quotient coding modem | |||
| 708 | 5923651 | Increasing data throughput in a wireless telecommunications environment | |||
| 709 | 5920416 | Optical method of transmitting digital data | |||
| 710 | 5917858 | Digital transmission system with symbol encoding which maximizes the signal amplitude-to-noise ratio | |||
| 711 | 5917384 | Modulating array transmitter and method having improved on-off keying | |||
| 712 | 5914620 | Frequency doubling of a quadrature-amplitude modulated signal using a frequency multiplier | |||
| 713 | 5913154 | VSWR control technique for terminal products with linear modulation | |||
| 714 | 5909642 | Nonlinear distortion detecting circuit and nonlinear distortion compensating circuit for transmitter | |||
| 715 | 5907264 | Power recycling for modulating array transmitters | |||
| 716 | 5905760 | Method of correcting nonlinearities of an amplifier, and radio transmitter employing a method of this type | |||
| 717 | 5903823 | Radio apparatus with distortion compensating function | |||
| 718 | 5903611 | Method of correcting nonlinearities of an amplifier, and radio transmitter employing a method of this type | |||
| 719 | 5901346 | Method and apparatus utilizing a compensated multiple output signal source | |||
| 720 | 5901179 | Waveform shaping method and equipment | |||
| 721 | 5886584 | Method and apparatus for adjusting modulation accuracy of an orthogonal modulation | |||
| 722 | 5883551 | Quadrature modulator malfunction estimator and modulator stage using it | |||
| 723 | 5881107 | Transmission system for digital signals, and transmitter and receiver therefor | |||
| 724 | 5867071 | High power transmitter employing a high power QAM modulator | |||
| 725 | 5864492 | Randomized digital waveshape samples from a look up table | |||
| 726 | 5862181 | Transmitting receiving apparatus | |||
1998 | |||||
| 727 | 5852389 | Direct QAM modulator | |||
| 728 | 5838733 | Method and apparatus for mitigating signal distortion in a communication system | |||
| 729 | 5838727 | Method and apparatus for transmitting and receiving digital data over a bandpass channel | |||
| 730 | 5825828 | Method and apparatus for multi-level quadrature amplitude modulation | |||
| 731 | 5825820 | Waveform shaping method and equipment | |||
| 732 | 5815531 | Transmitter for encoded data bits | |||
| 733 | 5815046 | Tunable digital modulator integrated circuit using multiplexed D/A converters | |||
| 734 | 5802451 | Non-linear compensation circuit for a power amplifier | |||
| 735 | 5802111 | Complex constellation point multiplier | |||
| 736 | 5796783 | Digital transmission system | |||
| 737 | 5793759 | Apparatus and method for digital data transmission over video cable using orthogonal cyclic codes | |||
| 738 | 5784402 | FMOD transceivers including continuous and burst operated TDMA, FDMA, spread spectrum CDMA, WCDMA and CSMA | |||
| 739 | 5781076 | Digital quadrature amplitude modulators | |||
| 740 | 5778029 | Signal conditioner with symbol addressed lookup table producing values which compensate linear and non-linear distortion using transversal filter | |||
| 741 | 5768317 | Equalization filter compensating for distortion in a surface acoustic wave device | |||
| 742 | 5768269 | Apparatus and method for establishing frame synchronization in distributed digital data communication systems | |||
| 743 | 5767750 | Modulator | |||
| 744 | 5748678 | Radio communications apparatus | |||
| 745 | 5745837 | Apparatus and method for digital data transmission over a CATV system using an ATM transport protocol and SCDMA | |||
| 746 | 5740520 | Channel correction transceiver | |||
| 747 | 5729575 | Transmitter and receiver system and method utilizing a pilot carrier notch data encoded signal | |||
| 748 | 5714916 | Modulator | |||
| 749 | 5706311 | Modulator circuit | |||
| 750 | 5705958 | Apparatus for correcting quadrature error in a modulator and/or in a demodulator for a signal having a plurality of phase states, a corresponding transmitter, and a corresponding receiver | |||
1997 | |||||
| 751 | 5703909 | Programmable voltage controlled attenuator | |||
| 752 | 5699383 | High-power linear amplification using periodically updated amplitude and phase correction values | |||
| 753 | 5696794 | Method and apparatus for conditioning digitally modulated signals using channel symbol adjustment | |||
| 754 | 5692013 | Shared resources modulator-demodulator circuits for use with quadrature amplitude modulated signals | |||
| 755 | 5638401 | Method and apparatus for generating plural quadrature modulated carriers | |||
| 756 | 5625647 | Transmitter having automatic level control function | |||
| 757 | 5623226 | Automatic calibration of carrier suppression and loop phase in a Cartesian amplifier | |||
| 758 | 5621762 | Radio with peak power and bandwidth efficient modulation | |||
| 759 | 5617063 | Matched filters for processing related signal components | |||
| 760 | 5613226 | Linear transmitter for use in combination with radio communication systems | |||
| 761 | 5612651 | Modulating array QAM transmitter | |||
| 762 | 5604771 | System and method for transmitting sound and computer data | |||
| 763 | 5598436 | Digital transmission system with predistortion | |||
1996 | |||||
| 764 | 5586146 | Programmable voltage controlled attenuator | |||
| 765 | 5559807 | Power amplifier linearization in a TDMA mobile radio system | |||
| 766 | 5553318 | Transmitter having envelope feedback loop and automatic level control loop | |||
| 767 | 5548253 | Spectrally efficient quadrature amplitude modulator | |||
| 768 | 5535245 | Modulation/demodulation circuit for a digital signal recorder/reproducer | |||
| 769 | 5534828 | Digitized quadrature modulator | |||
| 770 | 5534827 | Modulator | |||
| 771 | 5533048 | Apparatus and method for compensating for limiter induced non-linear distortion in a wireless data communication system | |||
| 772 | 5509033 | Quadrature overlapping modulation system | |||
| 773 | 5507033 | Apparatus and method for increasing data transmission rate over wireless communication systems using spectral shaping | |||
| 774 | 5507014 | Radio transmitter circuit with time dependant inhibited transmissions | |||
| 775 | 5504465 | Microwave modulator having adjustable couplers | |||
| 776 | 5491457 | F-modulation amplification | |||
1995 | |||||
| 777 | 5469127 | Amplification apparatus and method including modulator component | |||
| 778 | 5469105 | Transmitter and power amplifier therefor | |||
| 779 | 5459749 | Multi-level superposed amplitude-modulated baseband signal processor | |||
| 780 | 5450044 | Quadrature amplitude modulator including a digital amplitude modulator as a component thereof | |||
| 781 | 5448203 | Negative-feedback amplifier and feedback controlling method thereof | |||
| 782 | 5438301 | Modem having a phase corrector and a voltage controlled oscillator implemented using a multi-stage ring oscillator | |||
| 783 | 5434887 | Quadrature modulation circuit for use in a radio transmitter | |||
| 784 | 5420536 | Linearized power amplifier | |||
| 785 | 5404378 | Distortion compensating circuit | |||
| 786 | 5396196 | Quadrature modular with adaptive suppression of carrier leakage | |||
| 787 | 5387883 | Quadrature modulator having controlled phase shifter | |||
| 788 | 5386590 | Apparatus and method for increasing data transmission rate over wireless communication systems using spectral shaping | |||
| 789 | 5381108 | Automatic calibration of the quadrature balance within a cartesian amplifier | |||
1994 | |||||
| 790 | 5371481 | Tuning techniques for I/Q channel signals in microwave digital transmission systems | |||
| 791 | 5369789 | Burst signal transmitter | |||
| 792 | 5343500 | Non-linear encoder and decoder for information transmission through non-linear channels | |||
| 793 | 5339054 | Modulated signal transmission system compensated for nonlinear and linear distortion | |||
| 794 | 5329259 | Efficient amplitude/phase modulation amplifier | |||
| 795 | 5321799 | Signalling transition control in a modulated-signal communications system | |||
| 796 | 5293406 | Quadrature amplitude modulator with distortion compensation | |||
1993 | |||||
| 797 | 5265127 | Non-linear encoder and decoder for information transmission through non-linear channels | |||
| 798 | 5253271 | Method and apparatus for quadrature amplitude modulation of digital data using a finite state machine | |||
| 799 | 5237292 | Quadrature amplitude modulation system with compensation for transmission system characteristics | |||
| 800 | 5204881 | System for set-up of transmitters in high capacity digital radio links | |||
| 801 | 5200978 | Process for actuation of multi-level digital modulation by a digital signal processor | |||
| 802 | 5193224 | Adaptive phase control for a power amplifier predistorter | |||
| 803 | 5177455 | Digital phase and amplitude modulator | |||
1992 | |||||
| 804 | 5172071 | Linearized output control of a nonlinear amplifier | |||
| 805 | 5153536 | Suppressed carrier modulator formed from two partial modulators each including a phase delay path | |||
| 806 | 5148448 | Adaptive predistortion circuit with memory | |||
| 807 | 5124861 | Digital signal magnetic recording and playback apparatus employing quadrature amplitude modulation | |||
| 808 | 5123031 | Control voltage generator in a transmitter arrangement for digitally modulated signals | |||
| 809 | 5119399 | Quadrature measurement and calibration of a vector modulator | |||
| 810 | 5113414 | Predistortion arrangement for a digital transmission system | |||
| 811 | 5107520 | Adaptive predistortion circuit for a digital transmission system | |||
| 812 | 5105446 | Digital method of correcting non-linearity in a transmission chain, and apparatus implementing the method | |||
| 813 | 5105445 | Predistortion arrangement for a digital transmission system | |||
| 814 | 5091919 | Transmitter arrangement for digitally modulated signals | |||
| 815 | 5081647 | Communication of a voice signal via continuous quadrature amplitude modulator | |||
1991 | |||||
| 816 | 5066923 | Linear transmitter training method and apparatus | |||
| 817 | 5066922 | Stabilizing circuit for feedback RF amplifier | |||
| 818 | 5058135 | Modulating arrangement for phase and amplitude modulation of a wave | |||
| 819 | 5054037 | Method of servo-controlling the parameters of a modulator having 2.sup.n phase and amplitude states, and a circuit for implementing the method | |||
| 820 | 5040194 | Method and apparatus for providing for automatic gain control of incoming signals in a modem | |||
| 821 | 4999590 | Four state phase shift modulator, in particular for amplitude modulation of two carriers in quadrature with a large number of states | |||
| 822 | 4993047 | Volterra linearizer for digital transmission | |||
| 823 | 4985688 | Modulation system capable of accurately compensating for nonlinearities of an amplifier connected thereto | |||
1990 | |||||
| 824 | 4967164 | Adaptive predistortion circuit | |||
| 825 | 4965536 | Quadrature amplitude modulation system using digital filters | |||
| 826 | 4910474 | Method and apparatus for generating phase and amplitude modulated signals | |||
1989 | |||||
| 827 | 4881049 | QAM modulator/demodulator | |||
| 828 | 4868864 | Autocorrelating 2400 bps handshake sequence detector | |||
| 829 | 4849703 | Method and apparatus for generating a data sampling clock locked to a baud clock contained in a data signal | |||
| 830 | 4843613 | Digitally implemented modulators | |||
| 831 | 4843351 | Vector modulation signal generator | |||
| 832 | 4816783 | Method and apparatus for quadrature modulation | |||
| 833 | 4808937 | Phase-locked loop for a modem | |||
| 834 | 4801899 | Quadrature amplitude modulation/demodulation device using multi-level digital signals | |||
1988 | |||||
| 835 | 4777453 | Quadrature amplitude modulator using switched capacitor filter | |||
| 836 | 4759039 | Simplified recovery of data signals from quadrature-related carrier signals | |||
| 837 | 4751478 | Multilevel modulator capable of producing a composite modulated signal comprising a quadrature amplitude modulated component and a phase modulated component | |||
| 838 | 4737969 | Spectrally efficient digital modulation method and apparatus | |||
| 839 | 4736389 | Technique for synthesizing the modulation of a time varying waveform with a data signal | |||
| 840 | 4717894 | Calibration of vector modulators using a scalar detector | |||
1987 | |||||
| 841 | 4700151 | Modulation system capable of improving a transmission system | |||
| 842 | 4672634 | Arrangement for generating an angle-modulated carrier signal of constant amplitude in response to data signals | |||
| 843 | 4665532 | Radio communication system | |||
| 844 | 4661948 | Digital quadrature amplitude modulator | |||
| 845 | 4646326 | QAM modulator circuit | |||
| 846 | 4644565 | Superposed quadrature modulated baseband signal processor | |||
1986 | |||||
| 847 | 4626803 | Apparatus for providing a carrier signal with two digital data streams I-Q modulated thereon | |||
| 848 | 4617537 | Method for digital quadrature amplitude modulation | |||
| 849 | 4606048 | Radio communication system | |||
| 850 | 4581748 | QAM with DC bias in one channel | |||
| 851 | 4573153 | Data transmitting-receiving system for suppressing data error | |||
| 852 | 4571549 | 16-QAM Modulator with PLL amplification devices | |||
1985 | |||||
| 853 | 4562425 | Differential encoder and decoder for transmitting binary data | |||
| 854 | 4529950 | Digital phase and amplitude modulator | |||
| 855 | 4525847 | QAM encoder | |||
| 856 | 4521878 | Data transmitting-receiving system | |||
1984 | |||||
| 857 | 4485357 | Circuit for amplitude and phase modulation of carrier signal by two respective input signals | |||
| 858 | 4464767 | System for generation of multiple pointed QAM signal spaces by use of synchronous Qam transmitters | |||
| 859 | 4458216 | Switched-capacitor modulator for quadrature modulation | |||
| 860 | 4442530 | Digital transmitter with vector component addressing | |||
| 861 | 4433310 | Modulator-demodulator for four level double amplitude modulation on quadrature carriers | |||
1983 | |||||
| 862 | 4404532 | Modulator having improved bandwidth and power requirements | |||
1982 | |||||
| 863 | 4358853 | Digital modem transmitter | |||
| 864 | 4355397 | Full duplex communication system for voice grade channels | |||
| 865 | 4327439 | Method for generating modem transmission signals with quadrature amplitude modulation | |||
1981 | |||||
| 866 | 4302757 | Bore telemetry channel of increased capacity | |||
| 867 | 4291277 | Adaptive predistortion technique for linearizing a power amplifier for digital data systems | |||
| 868 | 4285062 | Digital multi-level multi-phase modulation communication system | |||
1980 | |||||
| 869 | 4217467 | Amplitude and periodic phase modulation transmission system | |||
1979 | |||||
| 870 | 4166923 | Amplitude- and periodic phase-modulation transmission system | |||
1978 | |||||
| 871 | 4123710 | Partial response QAM modem | |||
| 872 | 4085449 | Digital modem | |||
| 873 | 4084137 | Multidimensional code communication systems | |||
1977 | |||||
| 874 | 4055727 | Partial response, quadrature amplitude modulation system | |||
1976 | |||||
| 875 | 3983485 | Multi-phase and multi-amplitude level modulator and modulation and demodulation methods | |||
| 876 | 3980971 | Modulator for hybrid modulation by more and less significant digital signals in succession in each clock interval and counterpart demodulator | |||
| 877 | 3931860 | Low-profile platform scale | |||
| © 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017 | |||||