СПИСОК патентов США - подгруппа МПК16 H04B1/62
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| № п/п | Номер патента | Название патента | |||
2017 | |||||
| 1 | 9595983 | Method and apparatus for digital predistortion of ultra wideband radio frequency upconverters | |||
| 2 | 9584181 | Channel estimation | |||
| 3 | 9577863 | System and method for improved frequency/phase error tracking in high-speed high-frequency communication | |||
| 4 | 9571137 | Single tone RF signal generator | |||
| 5 | 9537585 | Circuit, an integrated circuit, a transmitter, a receiver, a transceiver, a method for obtaining calibration data and a method for generating a local oscillator signal | |||
2016 | |||||
| 6 | 9529567 | Digital processor having instruction set with complex exponential non-linear function | |||
| 7 | 9521405 | Receiver automatic gain control (AGC) and slicer | |||
| 8 | 9520915 | Radio communication system, radio base station, and mobile terminal | |||
| 9 | 9509365 | Digital suppression of transmitter intermodulation in receiver | |||
| 10 | 9489961 | Controlling a noise-shaping feedback loop in a digital audio signal encoder avoiding instability risk of the feedback | |||
| 11 | 9485035 | Self-tuning transfer function for adaptive filtering | |||
| 12 | 9461698 | Communications device with simultaneous transmit and receive and related methods | |||
| 13 | 9455761 | Systems and methods for multi-rate digital self-interference cancellation | |||
| 14 | 9455760 | Waveform adaptable digital predistortion | |||
| 15 | 9450622 | Circuit and method for providing a radio frequency signal | |||
| 16 | 9450621 | Digital predistortion processing method and system | |||
| 17 | 9432076 | Linearity enhancement for concurrent transmission systems and methods | |||
| 18 | 9419658 | Digital modulator non-linearity correction | |||
| 19 | 9385762 | Linearization of intermodulation bands for concurrent dual-band power amplifiers | |||
| 20 | 9379854 | Signaling with noise cancellation using echoes | |||
| 21 | 9379745 | Multi-band wide band power amplifier digital predistortion system | |||
| 22 | 9372663 | Direct digital synthesis of signals using maximum likelihood bit-stream encoding | |||
| 23 | 9363130 | Dynamic digital predistortion for a microwave radio system | |||
| 24 | 9363068 | Vector processor having instruction set with sliding window non-linear convolutional function | |||
| 25 | 9362967 | Transmitter noise suppression in receiver | |||
| 26 | 9362942 | System characteristic identification systems and methods | |||
| 27 | 9362868 | Reduced power amplifier load impact for open loop envelope tracking | |||
| 28 | 9337886 | Digital pre-distortion with shared observation path receiver | |||
| 29 | 9331738 | Method, system, and apparatus for RF switching amplifier | |||
| 30 | 9306678 | Data interpretation with noise signal analysis | |||
| 31 | 9292255 | Multi-stage crest factor reduction (CFR) for multi-channel multi-standard radio | |||
| 32 | 9280315 | Vector processor having instruction set with vector convolution function for fir filtering | |||
| 33 | 9240819 | Self-tuning transfer function for adaptive filtering | |||
| 34 | 9236898 | Multi-band observation receiver | |||
| 35 | 9231647 | Joint analog and digital interference cancellation in wireless systems | |||
2015 | |||||
| 36 | 9225501 | Non-linear modeling of a physical system using look-up table with polynomial interpolation | |||
| 37 | 9225364 | Distortion compensation method, distortion compensation apparatus, and non-transitory computer readable storage medium | |||
| 38 | 9209841 | Adaptively controlled digital pre-distortion in an RF power amplifier using an integrated signal analyzer with enhanced analog-to-digital conversion | |||
| 39 | 9201628 | Maximum likelihood bit-stream generation and detection using M-algorithm and infinite impulse response filtering | |||
| 40 | 9197281 | Method for power amplification and electronic device thereof | |||
| 41 | 9197182 | Envelope power supply calibration of a multi-mode radio frequency power amplifier | |||
| 42 | 9191041 | Digital predistortion of wideband power amplifiers with reduced observation bandwidth | |||
| 43 | 9184784 | Method and apparatus for digital predistortion for a switched mode power amplifier | |||
| 44 | 9130660 | Multiple-path noise cancellation | |||
| 45 | 9130628 | Digital pre-distorter | |||
| 46 | 9118525 | Receiver for sideband mitigation communication systems and methods for increasing communication speeds, spectral efficiency and enabling other benefits | |||
| 47 | 9100250 | Pre-phase error correction | |||
| 48 | 9094106 | Precoding method and apparatus | |||
| 49 | 9093960 | Transmitter and method with RF power amplifier having predistorted bias | |||
| 50 | 9088344 | Frequency agile filter using a digital filter and bandstop filtering | |||
| 51 | 9077440 | Digital suppression of transmitter intermodulation in receiver | |||
| 52 | 9036732 | Modeling transmitter and/or transmit observation receiver frequency response and utilization thereof | |||
| 53 | 9020021 | Precoding loss reduction | |||
2014 | |||||
| 54 | 8891672 | Method and apparatus for maximizing power output based on linearity of a transmitter | |||
| 55 | 8665935 | Method and system for calibrating a transmitting system | |||
2013 | |||||
| 56 | 8346188 | Nonlinearity calibration scheme for a frequency modulation transmitter | |||
2010 | |||||
| 57 | 7778612 | Polar modulation circuit, integrated circuit and radio apparatus | |||
2005 | |||||
| 58 | 6959174 | Amplifying device | |||
| 59 | 6940987 | Techniques for improving audio clarity and intelligibility at reduced bit rates over a digital network | |||
| 60 | 6864745 | Distortion compensation device | |||
| 61 | 6850556 | Pre-phase error correction transmitter | |||
2004 | |||||
| 62 | 6831941 | CDMA system which uses pre-rotation before transmission | |||
| 63 | 6807278 | Audio noise reduction system implemented through digital signal processing | |||
| 64 | 6799021 | Method and arrangement for forming an address | |||
| 65 | 6751447 | Adaptive digital pre-distortion circuit using output reference signal and method of operation | |||
| 66 | 6751273 | Apparatus for compensating a channel distortion in a bluetooth system | |||
| 67 | 6721700 | Audio coding method and apparatus | |||
| 68 | 6714093 | Dynamics compressor for an analog signal to be compressed | |||
| 69 | 6690711 | User equipment which uses pre-rotation before transmission | |||
| 70 | 6680978 | Method and apparatus for nonlinear filtering and controlling the peak-to-average ratio | |||
2003 | |||||
| 71 | 6633602 | User equipment which uses pre-rotation before transmission | |||
| 72 | 6606345 | Base station which uses pre-rotation before transmission | |||
| 73 | 6597301 | Apparatus and method for level-dependent companding for wireless audio noise reduction | |||
| 74 | 6591090 | Predistortion control for power reduction | |||
| 75 | 6587499 | Base station which uses pre-rotation before transmission | |||
| 76 | 6542612 | Companding amplifier with sidechannel gain control | |||
| 77 | 6518852 | Information signal compressor and expander | |||
2002 | |||||
| 78 | 6430169 | Spectral shaping a CDMA signal | |||
| 79 | 6405147 | Signal transfer device measurement system and method | |||
| 80 | 6393062 | Methods and circuits for generating a preemphasis waveform | |||
| 81 | 6366627 | Compressive receiver with frequency expansion | |||
| 82 | 6346853 | Predistortion linearizer circuit | |||
2001 | |||||
| 83 | 6266320 | Amplitude limitation in CDMA system | |||
| 84 | 6246865 | Device and method for controlling distortion characteristic of predistorter | |||
| 85 | 6169808 | Signal compressing circuit | |||
2000 | |||||
| 86 | 6137934 | Optical cable with tubular metal core and method of making same | |||
| 87 | 6038430 | Method and apparatus for improving transmission of data in a wireless network | |||
| 88 | 6038429 | Citizen's band radio with improved reception | |||
1999 | |||||
| 89 | 5911115 | Data transmission over amps networks | |||
| 90 | 5910995 | DSP decoder for decoding analog SR encoded audio signals | |||
| 91 | 5910965 | Adaptive predistortion using over-the-hop feedback | |||
| 92 | 5907623 | Audio noise reduction system implemented through digital signal processing | |||
| 93 | 5907584 | System and method for transmitting and receiving a Lincompex signal having information encoded thereon through angle modulation | |||
| 94 | 5901348 | Apparatus for enhancing sensitivity in compressive receivers and method for the same | |||
1998 | |||||
| 95 | 5845216 | Optimized companding for communication over cellular systems | |||
| 96 | 5794187 | Method and apparatus for improving effective signal to noise ratios in hearing aids and other communication systems used in noisy environments without loss of spectral information | |||
| 97 | 5793797 | Data transmisson system with a low peak-to-average power ratio based on distorting small amplitude signals | |||
| 98 | 5748678 | Radio communications apparatus | |||
| 99 | 5745839 | Satellite multiple access system with distortion cancellation and compression compensation | |||
| 100 | 5737434 | Multi-band audio compressor with look-ahead clipper | |||
| 101 | 5720039 | Satellite multiple access system with distortion cancellation and compression compensation | |||
1997 | |||||
| 102 | 5682432 | Broadcast receiver | |||
| 103 | 5659660 | Method of transmitting and/or storing digitized, data-reduced audio signals | |||
| 104 | 5651028 | Data transmission system with a low peak-to-average power ratio based on distorting frequently occuring signals | |||
| 105 | 5631648 | Signal compression or expansion circuit for mobile communication | |||
| 106 | 5612991 | Use of RSSI indication for improved data transmission over amps network | |||
1996 | |||||
| 107 | 5574990 | Predistortion technique for communications systems | |||
| 108 | 5568087 | Pre-distorting linearization circuit | |||
| 109 | 5533048 | Apparatus and method for compensating for limiter induced non-linear distortion in a wireless data communication system | |||
| 110 | 5524148 | Background noise compensation in a telephone network | |||
| 111 | 5507033 | Apparatus and method for increasing data transmission rate over wireless communication systems using spectral shaping | |||
| 112 | 5499389 | Method of compensating the dependence of the useful transmitter signal on the transfer function of a combiner filter | |||
| 113 | 5495468 | System and method for transmitting plural information waveforms over a single communications channel using lincompex techniques | |||
| 114 | 5493699 | Low noise communication analog compressor and analog expander | |||
| 115 | 5485515 | Background noise compensation in a telephone network | |||
1995 | |||||
| 116 | 5454010 | System and method for calibration of frequency hopping | |||
| 117 | 5428593 | Digital audio signal transforming method and apparatus | |||
| 118 | 5400371 | System and method for filtering random noise using data compression | |||
| 119 | 5386590 | Apparatus and method for increasing data transmission rate over wireless communication systems using spectral shaping | |||
1994 | |||||
| 120 | 5363056 | Circuit for linearization of amplified electronic signals | |||
| 121 | 5276764 | Method and device for compressing and expanding an analog signal | |||
| 122 | 5276403 | Nonlinear preemphasis-deemphasis system | |||
1993 | |||||
| 123 | 5252930 | Predistorter for linearization of electronic and optical signals | |||
| 124 | 5251328 | Predistortion technique for communications systems | |||
| 125 | 5241689 | Digital signal processor audio compression in an RF base station system | |||
| 126 | 5241282 | Wide dynamic range, low power, analog-to-digital receiver | |||
| 127 | 5204880 | Differential line driver employing predistortion | |||
| 128 | 5179361 | Compandor system with stable and widely adjustable unity gain level | |||
1992 | |||||
| 129 | 5161044 | Optical transmitters linearized by means of parametric feedback | |||
| 130 | 5132639 | Predistorter for linearization of electronic and optical signals | |||
| 131 | 5113414 | Predistortion arrangement for a digital transmission system | |||
| 132 | 5107520 | Adaptive predistortion circuit for a digital transmission system | |||
| 133 | 5105446 | Digital method of correcting non-linearity in a transmission chain, and apparatus implementing the method | |||
| 134 | 5105445 | Predistortion arrangement for a digital transmission system | |||
1991 | |||||
| 135 | 5065451 | System and method of frequency calibration in a linked compression-expansion (lincompex) system | |||
| 136 | 5060310 | Apparatus and method for reduction of intermodulation distortion in an optical fiber network | |||
| 137 | 5058202 | System and method of transmitting and receiving a licompex modulated signal over a communication channel utilizing frequency modulation techniques | |||
| 138 | 5038113 | Nonlinearity generator using FET source-to-drain conductive path | |||
| 139 | 5023890 | Digital peak noise reduction circuit | |||
| 140 | 4992754 | Predistorter for linearization of electronic and optical signals | |||
1990 | |||||
| 141 | 4969162 | Polled data network auto-equalizer system and method | |||
| 142 | 4944024 | Method and apparatus for reducing noise in a linked compressor-expander telecommunications system | |||
| 143 | 4907217 | System and method of transmitting a complex waveform over a communication channel utilizing lincompex techniques | |||
| 144 | 4894862 | Signal compression circuit, particularly for a telephone set | |||
1989 | |||||
| 145 | 4882762 | Multi-band programmable compression system | |||
| 146 | 4876741 | Method of receiving a compressed composite signal | |||
| 147 | 4856026 | Data transmission system comprising smearing filters | |||
| 148 | 4803739 | SSB communication system | |||
1988 | |||||
| 149 | 4741039 | System for maximum efficient transfer of modulated energy | |||
| 150 | 4718116 | Method and apparatus for receiving a compressed composite signal | |||
1987 | |||||
| 151 | 4700362 | A-D encoder and D-A decoder system | |||
| 152 | 4700361 | Spectral emphasis and de-emphasis | |||
| 153 | 4700151 | Modulation system capable of improving a transmission system | |||
| 154 | 4698597 | Suppressed-fundamental frequency three-way predistorter | |||
| 155 | 4682343 | Processing circuit with asymmetry corrector and convolutional encoder for digital data | |||
| 156 | 4677645 | Audio signal transmission system having noise reduction means | |||
| 157 | 4672633 | Data transmission system | |||
| 158 | 4660216 | Transmission system for the transmission of data signals in a modulation band | |||
| 159 | 4654891 | Optical communication of video information with distortion correction | |||
| 160 | 4642583 | Noise reduction in companding arrangements | |||
1986 | |||||
| 161 | 4618941 | Apparatus and method for generating filtered multilevel data from NRZ data | |||
| 162 | 4600902 | Compandor noise reduction circuit | |||
| 163 | 4578818 | System for processing audio frequency information for frequency modulation | |||
| 164 | 4573208 | Compressed single side band communications system and method | |||
1985 | |||||
| 165 | 4562571 | Speech processing device for radioelectric equipment adapted for speech transmission and reception | |||
| 166 | 4561111 | Method of predistorting a single sideband system | |||
| 167 | 4551853 | Apparatus for processing speech in radioelectric transmitter/receiver equipment suitable for transmitting and receiving speech | |||
| 168 | 4547741 | Noise reduction circuit with a main signal path and auxiliary signal path having a high pass filter characteristic | |||
| 169 | 4539707 | Compressed single side band communications system and method | |||
| 170 | 4536846 | Distortion reducer for companded analog systems | |||
| 171 | 4531208 | Apparatus and method for reducing telephone channel power loading | |||
| 172 | 4500842 | Adaptive gain variable bit rate NIC processor | |||
1984 | |||||
| 173 | 4485483 | FM Stereophonic system incorporating companding of difference signal | |||
| 174 | 4476539 | Transversal type smear-desmear filter | |||
| 175 | 4457020 | Signal processing device for use on radio links | |||
| 176 | 4451746 | Non-linear emphasis circuit | |||
| 177 | 4443890 | Optical-connection direct-light modulation information transmission system with a passband extended towards the low frequencies and continuous waves | |||
| 178 | 4430754 | Noise reducing apparatus | |||
1983 | |||||
| 179 | 4369509 | Gain control circuit for noise reduction system | |||
1982 | |||||
| 180 | 4335470 | Audio de-emphasis circuit | |||
| 181 | 4326293 | Transmitter-receiver with automatic alternation control | |||
| 182 | 4314372 | Methods and means for producing and reproducing transmitted or recorded sound or video signals | |||
| 183 | 4313194 | Transmission system of frequency division multiplex signals on digital links | |||
| 184 | 4309676 | Instantaneous compressor and instantaneous expandor | |||
1981 | |||||
| 185 | 4306256 | Preemphasis and clipping apparatus for reducing distortions | |||
| 186 | 4295223 | Digital signal/noise ratio amplifier apparatus for a communication system | |||
| 187 | 4281295 | Noise reducing apparatus | |||
| 188 | 4271499 | Method and apparatus for digitally implementing a linked compressor-expander telecommunications system | |||
| 189 | 4253072 | Compandor with sampling and equalization | |||
| 190 | 4250470 | Syllabic compander with logarithmic chain | |||
1980 | |||||
| 191 | 4221934 | Compandor for group of FDM signals | |||
| 192 | 4215431 | Wireless transmission system | |||
| 193 | 4181970 | Digital attenuator for compressed PCM signals | |||
1979 | |||||
| 194 | 4162462 | Noise reduction system | |||
| 195 | 4152582 | Compaction/expansion logic | |||
| 196 | 4151469 | Apparatus equipped with a transmitting and receiving station for generating, converting and transmitting signals | |||
| 197 | 4145664 | Audio signal compression and expansion system | |||
| 198 | 4136314 | Adaptive signal weighting system | |||
1978 | |||||
| 199 | 4123711 | Synchronized compressor and expander voice processing system for radio telephone | |||
| 200 | 4122399 | Distortion generator | |||
| 201 | 4121295 | Integer weighted impulse equivalent coded signal processing apparatus | |||
| 202 | 4114115 | Compandor apparatus | |||
| 203 | 4112254 | Signal compander system | |||
| 204 | 4110699 | Adaptive audio compressor | |||
| 205 | 4103239 | Compressor for both speech and carrier signals | |||
| 206 | 4101849 | Adaptive filter | |||
| 207 | 4072914 | Compression and expansion system with enlarged dynamic range | |||
| 208 | 4071695 | Speech signal amplitude equalizer | |||
| 209 | 4068139 | IC compatible variable shunt impedance for Dolby B system | |||
1977 | |||||
| 210 | 4060764 | Transceiver audio system | |||
| 211 | 4039949 | Pulse code modulation with dynamic range limiting | |||
| 212 | 4038652 | Digital communications line terminal compacter/expander | |||
| 213 | 4035739 | Signal dynamic compression and expansion circuits | |||
| 214 | 4016497 | Feedbackward distortion compensating circuit | |||
| 215 | 4001732 | Calibration oscillators for noise reduction systems | |||
1976 | |||||
| 216 | 3978409 | Signal compressors and expanders | |||
| 217 | 3972010 | Compressors, expanders and noise reduction systems | |||
| 218 | 3969680 | Automatic dynamic compander system | |||
| 219 | 3967219 | Signal compressors and expanders | |||
| 220 | 3943466 | Compander for TDM telecommunication system | |||
| 221 | 3934190 | Signal compressors and expanders | |||
| © 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017 | |||||