СПИСОК патентов США - подгруппа МПК16 H04L27/22
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| № п/п | Номер патента | Название патента | |||
2017 | |||||
| 1 | 9596104 | Blind equalization tap coefficient adaptation in optical systems | |||
| 2 | 9564964 | Optical signal processing device, optical signal processing method and recording medium | |||
| 3 | 9553751 | Demodulation device | |||
| 4 | 9548812 | Method and apparatus for sub-carrier frequency control | |||
2016 | |||||
| 5 | 9515860 | Wideband and narrowband receiver | |||
| 6 | 9515743 | Receiver, transmission system, method for receiving polarization multiplexed optical signal, and non-transitory computer readable medium storing receiver control program | |||
| 7 | 9509410 | High-speed optical transceiver systems and methods | |||
| 8 | 9503304 | Packet mode auto-detection in multi-mode wireless communication system, signal field transmission for the packet mode auto-detection, and gain control based on the packet mode | |||
| 9 | 9497055 | Method and apparatus for polar receiver with digital demodulation | |||
| 10 | 9491018 | Carrier phase and amplitude estimation for phase shift keying using pilots and data | |||
| 11 | 9491017 | Circuit and method for improving phase detection | |||
| 12 | 9490755 | Phase shift and attenuation circuits for use with multiple-path amplifiers | |||
| 13 | 9484975 | Modular microwave backhaul outdoor unit | |||
| 14 | 9467317 | Method and apparatus for detecting and classifying signals | |||
| 15 | 9461855 | Methods and arrangements for selecting channel updates in wireless networks | |||
| 16 | 9455850 | Three phase and polarity encoded serial interface | |||
| 17 | 9444554 | Digital coherent receiving apparatus | |||
| 18 | 9444503 | Active signal processing personal health signal receivers | |||
| 19 | 9438301 | PLL circuit, calibration method, and wireless communication apparatus | |||
| 20 | 9419834 | MPSK demodulation apparatus and method | |||
| 21 | 9413575 | Method and apparatus for multi-carrier modulation (MCM) packet detection based on phase differences | |||
| 22 | 9407483 | Communication using continuous-phase modulated signals | |||
| 23 | 9401829 | Method for generating a filter bank for receiving a signal modulated by continuous phase modulation, and method for receiving said signal | |||
| 24 | 9397870 | Signal receiving device for measuring characteristic of wireless communication channel, and method of measuring characteristic of wireless communication channel | |||
| 25 | 9397821 | Method, apparatus, mobile communication terminal, computer program and storage medium for adjusting frequency error of terminal | |||
| 26 | 9385832 | Methodology and method and apparatus for signaling with capacity optimized constellations | |||
| 27 | 9385816 | Methods and arrangements for frequency shift communications by undersampling | |||
| 28 | 9379918 | System and method for increasing throughput in digital radio broadcast receiver | |||
| 29 | 9369321 | Increasing sensor data carrying capability of phase generated carriers | |||
| 30 | 9369235 | Maximizing data rate by adjusting codes and code rates | |||
| 31 | 9363125 | Blind phase tracking method for a filter bank multi-carrier (FBMC)receiver | |||
| 32 | 9362865 | Demodulation device, demodulation method and program | |||
| 33 | 9356813 | Capacity for narrow-band hybrid modulation | |||
| 34 | 9356772 | Hybrid clock and data recovery circuit and system including the same | |||
| 35 | 9356651 | Method for self-adaptively demodulating quasi-orthogonal signals, demodulation unit and radio signal receiver | |||
| 36 | 9350489 | FEC frame header design for cable television signals | |||
| 37 | 9344307 | Method and apparatus for sub-carrier frequency control | |||
| 38 | 9344306 | Method for dynamically adjusting signal processing parameters for processing wanted signal and communications apparatus utilizing the same | |||
| 39 | 9344171 | Transmission method, transmission device, reception method, and reception device | |||
| 40 | 9344038 | Tri-phase digital polar modulator | |||
| 41 | 9319182 | Near maximum likelihood spatial multiplexing receiver | |||
| 42 | 9319095 | DSSS inverted spreading for smart utility networks | |||
| 43 | 9313061 | Wireless communication system using selective mapping for memory-less demodulation and related methods | |||
| 44 | 9313059 | Data-modulated pilots for phase and gain detectors | |||
| 45 | 9313018 | Circuit and method for clock recovery of quadrature amplitude modulated waveforms | |||
| 46 | 9281973 | Method for demodulating at least one frame consisting of a succession of bits coded according to a Manchester code | |||
| 47 | 9276791 | Method and apparatus for transmitting PLCP frame in wireless local area network system | |||
| 48 | 9276674 | Estimating phase using test phases and interpolation for modulation formats using multiple sub-carriers | |||
| 49 | 9270390 | Frequency and phase offset compensation of modulated signals with symbol timing recovery | |||
| 50 | 9270377 | High-speed optical transceiver for infiniband and ethernet | |||
| 51 | 9270313 | Wireless receiver and method for wireless reception | |||
| 52 | 9264147 | Method and apparatus for phase shift keyed optical communications | |||
| 53 | 9252824 | Method and apparatus for filtering noise in a signal received by a wireless receiver | |||
| 54 | 9246724 | Method and apparatus for performing soft demapping in rotated quadrature amplitude modulation (QAM) based communication system | |||
| 55 | 9244126 | Automated test system with event detection capability | |||
| 56 | 9231653 | UWB receiver with time drift correction | |||
| 57 | 9231634 | Compensation apparatus and wireless communication equipment | |||
2015 | |||||
| 58 | 9209852 | Modular microwave backhaul outdoor unit | |||
| 59 | 9203511 | Feed-forward carrier phase recovery for optical communications | |||
| 60 | 9197471 | Optically interleaved photonic analog to digital converters | |||
| 61 | 9197469 | System and method for frequency offset estimation for signals containing multi-user symbols | |||
| 62 | 9185322 | Digital video broadcast receiver | |||
| 63 | 9184954 | Systems and methods for directed soft data perturbation in layered decoding | |||
| 64 | 9184905 | Phase compensation receiver | |||
| 65 | 9184779 | Dynamic medium switch in co-located PLC and RF networks | |||
| 66 | 9179442 | Wireless communication system, communication apparatus, communication method, and communication program | |||
| 67 | 9178551 | Circuits and methods for pulse radio receivers | |||
| 68 | 9173007 | Method and system for synchronization for DVB-S2 frame and its associated frame structure | |||
| 69 | 9166680 | Apparatus and method for measuring IQ imbalance for optical receiver | |||
| 70 | 9160588 | Radio receiver and frequency correcting method therefor | |||
| 71 | 9160417 | Apparatus and method for data communication using wireless power | |||
| 72 | 9154359 | Packet mode auto-detection in multi-mode wireless communication system, signal field transmission for the packet mode auto-detection, and gain control based on the packet mode | |||
| 73 | 9154351 | Method to minimize interference into legacy SDARS reception by varying overlay modulation as a function of satellite position | |||
| 74 | 9143374 | Efficient signal processing for receive and transmit DBF arrays | |||
| 75 | 9143316 | Non-disruptive eye scan for data recovery units based on oversampling | |||
| 76 | 9136979 | Carrier wave reproduction device and carrier wave reproduction method | |||
| 77 | 9134813 | System for demodulating a signal | |||
| 78 | 9130807 | Data recovery unit (DRU) based on free running oversampling with zero-latency loop | |||
| 79 | 9124393 | End of communication detection | |||
| 80 | 9106492 | Digital receiver | |||
| 81 | 9106298 | Suppression of adjacent channel interference by adaptive channel filtering in mobile radio receivers | |||
| 82 | 9100125 | Frame formatting for high rate optical communications | |||
| 83 | 9094266 | Efficient de-spreading | |||
| 84 | 9088465 | Receiver circuit | |||
| 85 | 9083589 | Active signal processing personal health signal receivers | |||
| 86 | 9083373 | Quadrature signal decoding using a driver | |||
| 87 | 9077593 | Receiver circuit and method for controlling receiver circuit | |||
| 88 | 9054925 | Parallel digital-to-time converter architecture | |||
| 89 | 9048985 | Transmission method, transmission device, reception method, and reception device | |||
| 90 | 9048979 | RF carrier synchronization and phase alignment methods and systems | |||
| 91 | 9036740 | Performing image rejection on bandpass signals | |||
| 92 | 9036661 | False lock detection for physical layer frame synchronization | |||
| 93 | 9020077 | Correction of imbalances in a complex intermediate frequency mixer | |||
| 94 | 9001948 | Pulse shaping in a communication system | |||
| 95 | 8995247 | Device triggered wake up of powerline communication devices | |||
| 96 | 8989315 | Methods, algorithms, software, circuits, architectures, and systems for improved communications over cyclostationary channels | |||
| 97 | 8976905 | Robust differential receiver for frequency modulated system | |||
| 98 | 8964909 | Maximizing data rate by adjusting codes and code rates | |||
| 99 | 8964904 | Receiver filter for DC-wander removal in a contactless smartcard | |||
| 100 | 8942320 | Data unit format for multi-user data in long-range wireless local area networks (WLANs) | |||
| 101 | 8942319 | Partial response equalizer and related method | |||
| 102 | 8938015 | Orthogonal frequency division multiplex (OFDM) demodulator with improved cyclic ambiguity resolution | |||
2014 | |||||
| 103 | 8924823 | System and method for cycle slip correction | |||
| 104 | 8908808 | Systems and methods for demodulating a signal | |||
| 105 | 8908806 | Method and system for communicating data wirelessly using probabilistic data association | |||
| 106 | 8891688 | Receiver circuit and receiver apparatus | |||
| 107 | 8891661 | Techniques for data transmission using high-order modulation | |||
| 108 | 8891644 | Communication apparatus and communication method | |||
| 109 | 8879653 | Soft-demapping of QAM signals | |||
| 110 | 8848838 | Detector for single-user coded signals in the presence of interference | |||
| 111 | 8848834 | System and method for detecting a frame format | |||
| 112 | 8848772 | Device, system and method of phase quantization for phased array antenna | |||
| 113 | 8817931 | Apparatus and method for envelope detection | |||
| 114 | 8792593 | Radio receiver and method for controlling radio receiver | |||
| 115 | 8787439 | Decision feedforward equalization | |||
| 116 | 8767881 | Signal processing apparatus, signal processing method, and program | |||
| 117 | 8744014 | Method and apparatus for coordinated MIMO signal transmission among multiple cells in wireless OFDM systems | |||
| 118 | 8724744 | Method and apparatus for wide dynamic range reduction | |||
| 119 | 8718190 | Receiver/transmitter capable of simultaneously receiving/transmitting discontinuous frequency signals and method thereof | |||
| 120 | 8705664 | Soft-input generation for soft-decision FEC decoding | |||
| 121 | 8699629 | Signal demodulation method | |||
| 122 | 8665014 | I/Q demodulation apparatus and method with phase scanning | |||
| 123 | 8644426 | Robust differential receiver for frequency modulated system | |||
2013 | |||||
| 124 | 8605828 | Blind mechanism for demodulating offset QPSK signals in the presence of carrier phase error | |||
| 125 | 8605826 | Multi-gigabit millimeter wave receiver system and demodulator system | |||
| 126 | 8594243 | Device and method of data recovery | |||
| 127 | 8588344 | Detecting the modulation type and/or constellation order of a PSK/QAM-modulated signal | |||
| 128 | 8588343 | Apparatus for calibrating amplitude and phase errors, multiport amplifier including the same, and method of amplifying the multiport amplifier | |||
| 129 | 8576954 | Method and apparatus of cross-correlation | |||
| 130 | 8576953 | Identification of target signals in radio frequency pulsed environments | |||
| 131 | 8576952 | Configurable all-digital coherent demodulator system for spread spectrum applications | |||
| 132 | 8576950 | Reception apparatus, reception method, demodulation apparatus, demodulation method, and program | |||
| 133 | 8571141 | Carrier recovery device and method | |||
| 134 | 8532227 | Method and apparatus for robust and high efficiency FEC frame header recovery | |||
| 135 | 8520780 | Communication units, communication system and methods for modulation and demodulation | |||
| 136 | 8509355 | Method and apparatus for low power simultaneous frequency, automatic gain control and timing acquisition in radio receivers | |||
| 137 | 8483322 | Automatic frequency correction | |||
| 138 | 8451950 | Method and apparatus adapted to demodulate a data signal | |||
| 139 | 8428184 | Transmitter, receiver, data transmission method and data reception method | |||
| 140 | 8401119 | Equalizer based symbol timing recovery with symbol enabled control | |||
| 141 | 8401118 | Method and apparatus for constant envelope demodulation | |||
| 142 | 8401038 | False lock detection for physical layer frame synchronization | |||
2012 | |||||
| 143 | 8331497 | Joint synchronizer and decoder | |||
| 144 | 8325827 | Transmitting device, receiving device and communication method for an OFDM communication system with new preamble structure | |||
| 145 | 8324963 | Demodulation circuit | |||
| 146 | 8311152 | Adaptive OFDM receiver based on carrier frequency offset | |||
| 147 | 8295405 | Apparatus and method for I/Q mismatch calibration | |||
| 148 | 8284871 | Synchronization determining circuit, receiver including the synchronization determining circuit, and method of the receiver | |||
| 149 | 8283975 | Data processing system | |||
| 150 | 8270511 | Methodology and method and appartus for signaling with capacity optimized constellations | |||
| 151 | 8259857 | Methods and systems for increased communication throughput | |||
| 152 | 8254498 | Random orthogonal frequency division multiplexing | |||
| 153 | 8243855 | Calibrated quadrature generation for multi-GHz receiver | |||
| 154 | 8238481 | Blind channel estimation for PSK and D-PSK modulated multicarrier communication systems | |||
| 155 | 8238463 | Reception and measurement of MIMO-OFDM signals with a single receiver | |||
| 156 | 8223890 | Asymptotically optimal modulation classification method for software defined radios | |||
| 157 | 8218692 | Signal separator | |||
| 158 | 8204161 | Configurable all-digital coherent demodulator system for spread spectrum applications | |||
| 159 | 8194793 | Multi-stage frequency offset estimation and compensation method and its circuit | |||
| 160 | 8170149 | OFDM receiver apparatus | |||
| 161 | 8165246 | Training sequence for low latency LMS implementation | |||
| 162 | 8160458 | Optical phase-modulation evaluating device | |||
| 163 | 8159929 | Low complexity high performance TMCC acquisition in ISDB-T and ISDB-TBS receivers | |||
| 164 | 8159288 | Low power BPSK demodulator | |||
| 165 | 8155241 | System for processing common gain values | |||
| 166 | 8139687 | Method to track a target frequency of an input signal | |||
| 167 | 8139655 | System and method for effectively transferring electronic information | |||
| 168 | 8138824 | Recursive demodulation apparatus and method | |||
| 169 | 8135094 | Receiver I/Q group delay mismatch correction | |||
| 170 | 8126089 | Method and apparatus for providing frame synchronization in a digital communication system that supports multiple modulation formats | |||
| 171 | 8107560 | Method and apparatus for interference cancellation in communication signal processing | |||
| 172 | 8098772 | Method for digital wireless communications | |||
| 173 | 8094755 | Ramping in multimode transmitters using primed filters | |||
| 174 | 8090057 | Robust burst detection and acquisition system and method | |||
| 175 | 8090055 | Binary continuous phase modulation (CPM) data demodulation receiver | |||
2011 | |||||
| 176 | 8085879 | Method for amplitude insensitive packet detection | |||
| 177 | 8081027 | Reception device, control method, and program | |||
| 178 | 8073080 | Method and system for RC-CR quadrature generation with wideband coverage and process compensation | |||
| 179 | 8068563 | Systems and methods for frequency offset correction in a digital radio broadcast receiver | |||
| 180 | 8068562 | Signal processing for multiple chains including barker code correlation and auto-correlation | |||
| 181 | 8064544 | Method and device for receiving OPFDM-DQPSK signal | |||
| 182 | 8050361 | Method and apparatus for coding in a telecommunications system | |||
| 183 | 8044713 | Receiving circuit and method for receiving an amplitude shift keying signal | |||
| 184 | 8040977 | Reception synchronization control device, reception synchronization control method, and program therefor | |||
| 185 | 8036310 | Transmitter and receiver | |||
| 186 | 8014462 | Apparatus for performing alternating quadratures differential binary phase shift keying modulation and demodulation | |||
| 187 | 7995678 | System and method for communicating data using weighted bit soft decisions for differentially encoded phase shift keying | |||
| 188 | 7991043 | Hybrid polyphase and joint time-frequency detection | |||
| 189 | 7978790 | Method and circuit for carrier control in a quadrature demodulator | |||
| 190 | 7970080 | Modes of operations in QAM modems using hysteresis sub-states | |||
| 191 | 7970079 | Phase shift keying wireless communication apparatus and method | |||
| 192 | 7961819 | Space-time block decoder for a wireless communications system | |||
| 193 | 7953184 | Direct sampling type wireless receiver and method using the same | |||
| 194 | 7929654 | Data sampling circuit and method for clock and data recovery | |||
| 195 | 7920654 | Signal processing method and apparatus using bit confidence values | |||
| 196 | 7912111 | Dynamic switching of carrier tracking loops without loss of tracking information | |||
| 197 | 7899137 | Mobile communication system with integrated GPS receiver | |||
| 198 | 7898322 | Demodulator for a low power radio receiver | |||
| 199 | 7885367 | System for adjusting sampling timing of DLL circuit, method therefor and transmitter-receiver used therefor | |||
| 200 | 7876149 | Harmonic quadrature demodulation apparatus and method thereof | |||
| 201 | 7873124 | Method for digital wireless communications | |||
| 202 | 7873123 | Null detector and method thereof | |||
| 203 | 7864893 | Decoder with soft decision combining | |||
| 204 | 7864892 | Control method and apparatus for receiving optical signal | |||
2010 | |||||
| 205 | 7860191 | Optimal two-layer coherent demodulation for D-PSK (Differential Phase Shift Keying) | |||
| 206 | 7836471 | Apparatus for receiving satellite DMB and method thereof | |||
| 207 | 7830989 | Ultra wideband impulse radar | |||
| 208 | 7826565 | Blocker performance in a radio receiver | |||
| 209 | 7817709 | Non-coherent phase differential and multiple orthogonal signal reception | |||
| 210 | 7809092 | Method and system for UMTS HSDPA shared control channel processing | |||
| 211 | 7796710 | Digital signal demodulator and wireless receiver using the same | |||
| 212 | 7792220 | Demodulator system and method | |||
| 213 | 7792215 | Direct-conversion receiver and sub-harmonic frequency mixer thereof | |||
| 214 | 7782128 | Sign detection device and associated method | |||
| 215 | 7778360 | Demodulating a signal encoded according to ASK modulation and PSK modulation | |||
| 216 | 7773697 | Method to demodulate amplitude offsets in a differential modulation system | |||
| 217 | 7769352 | Receiver and wireless communication apparatus | |||
| 218 | 7769118 | Method and apparatus for equalizing received signals based on independent component analysis | |||
| 219 | 7769112 | Method and system for generating wavelets | |||
| 220 | 7764937 | Frequency error estimation and correction | |||
| 221 | 7729455 | PSK receiver, PSK demodulating circuit, communication apparatus, and PSK receiving method | |||
| 222 | 7728657 | PLL circuit, phase shifting method, and IC chip | |||
| 223 | 7702047 | RF receiving apparatus and method for removing leakage component of received signal | |||
| 224 | 7702040 | Method and apparatus for frequency discriminator and data demodulation in frequency lock loop of digital code division multiple access (CDMA) receivers | |||
| 225 | 7697638 | Modulation detection in a SAIC operational environment | |||
| 226 | 7692485 | Modulation method with insertion of semi-pilot symbols | |||
| 227 | 7688918 | Recursive phase estimation for a phase-shift-keying receiver | |||
| 228 | 7688917 | Configurable all-digital coherent demodulator system for spread spectrum applications | |||
| 229 | 7672411 | Radio receiver | |||
| 230 | 7671670 | Device for demodulating a signal containing information being conveyed by phase shift keying | |||
| 231 | 7660367 | Base station using a multicarrier communication band divided into a plurality of blocks | |||
| 232 | 7643585 | Method for correcting soft decision value, computer program product for the same, and reception apparatus for the same | |||
| 233 | 7643581 | Space-time block decoder for a wireless communications system | |||
| 234 | 7643579 | Multiple differential demodulator using weighting value | |||
2009 | |||||
| 235 | 7639758 | Blind detection of BPSK signals in a multi-user environment | |||
| 236 | 7633414 | Circuit and method for Manchester decoding with automatic leading phase discovery and data stream correction | |||
| 237 | 7627058 | Alternating quadratures differential binary phase shift keying modulation and demodulation method | |||
| 238 | 7619466 | Quadrature demodulator | |||
| 239 | 7606332 | Variable signal delaying circuit, quadrature frequency converter and radio frequency tuner | |||
| 240 | 7583759 | Baseband time-domain communications method | |||
| 241 | 7580483 | Trimming of local oscillation in an integrated circuit radio | |||
| 242 | 7579921 | On-off keying-7-phase shift keying modulation system and method for fiber communication | |||
| 243 | 7558341 | Carrier recovery apparatus and digital broadcast receiver using the same | |||
| 244 | 7558340 | VSB receiver and carrier recovery apparatus thereof | |||
| 245 | 7545889 | Blocker performance in a radio receiver | |||
| 246 | 7539271 | System and method for multi-band ultra-wide band signal generators | |||
| 247 | 7529321 | Radio digital signal receiver | |||
| 248 | 7515654 | Data slicing circuit using multiple thresholds | |||
| 249 | 7514993 | IQ demodulator | |||
| 250 | 7512195 | Frequency control apparatus, wireless communication apparatus and frequency control method | |||
| 251 | 7508889 | Digital apparatus for soft detection of multi-chip DBPSK signals | |||
| 252 | 7499506 | Detection of signal modulation format type | |||
| 253 | 7492835 | Synchrodyning apparatus | |||
| 254 | 7486131 | Quadrature demodulator and interrogator | |||
| 255 | 7483497 | Method and apparatus for calculating log-likelihood ratio for decoding in a receiver for a mobile communication system | |||
| 256 | 7480350 | Carrier recovery apparatus and broadcasting receiver using the same | |||
| 257 | 7477708 | Modes of operations in QAM modems | |||
| 258 | 7474713 | System and method for demodulating multiple QAM signals | |||
| 259 | 7474711 | Method and system for I/Q imbalance and DC offset correction | |||
2008 | |||||
| 260 | 7466769 | Method and apparatus of cross-correlation | |||
| 261 | 7463701 | Fast symbol timing recovery for transmitted digital data | |||
| 262 | 7456683 | Amplitude error compensating device and quadrature skew error compensating device | |||
| 263 | 7450666 | Ask demodulation device and wireless device using the same | |||
| 264 | 7440516 | Apparatus and method for receiving digital multimedia broadcasting in a wireless terminal | |||
| 265 | 7436907 | Analog compression of GPS C/A signal to audio bandwidth | |||
| 266 | 7428273 | Method and apparatus for efficient preamble detection in digital data receivers | |||
| 267 | 7428272 | Method and apparatus for joint phase offset and frequency offset estimator for MPSK transmission | |||
| 268 | 7428270 | Method and system for detecting and classifying the modulation of unknown analog and digital telecommunications signals | |||
| 269 | 7415078 | Demodulation for phase modulation | |||
| 270 | 7409015 | Adaptive modulation scheme based on cutoff rate with imperfect channel state information | |||
| 271 | 7406137 | Carrier recovery system and method thereof | |||
| 272 | 7403579 | Dual mode QAM/VSB receiver | |||
| 273 | 7388934 | Detection and correction of phase jumps in a phase sequence | |||
| 274 | 7376206 | Method and apparatus for adjusting the phase of a received signal | |||
| 275 | 7369629 | FSK signal demodulation circuit | |||
| 276 | 7362827 | System and method for the demodulation of IFF signals | |||
| 277 | 7342981 | Digital receiver having adaptive carrier recovery circuit | |||
| 278 | 7342980 | Estimating carrier phase in communication systems | |||
| 279 | 7333792 | Multi-carrier receiving method and apparatus | |||
| 280 | 7333571 | Reduced complexity coding system using iterative decoding | |||
| 281 | 7324612 | Carrier tracking circuit and method including dual numerically controlled oscillators and feedforward phase correction coefficient | |||
| 282 | 7319716 | Transmitter image suppression in TDD transceivers | |||
2007 | |||||
| 283 | 7310387 | Apparatus for compensating DC offsets, gain and phase imbalances between I-channel and Q-channel in quadrature transceiving system | |||
| 284 | 7292655 | Apparatus and method and decoding biphase signals | |||
| 285 | 7292653 | Carrier lock detector | |||
| 286 | 7289557 | Adaptive equalization using a conditional update sign-sign least mean square algorithm | |||
| 287 | 7280615 | Method for making a clear channel assessment in a wireless network | |||
| 288 | 7277504 | Method and system for concurrent estimation of frequency offset and modulation index | |||
| 289 | 7263139 | Phase correction for a phase modulated signal with mutually interfering symbols | |||
| 290 | 7260159 | Method and apparatus for providing higher order modulation that is backwards compatible with quaternary phase shift keying (QPSK) or offset quaternary phase shift keying (OQPSK) | |||
| 291 | 7260158 | Digital broadcast receiver and digital broadcast receiving method | |||
| 292 | 7251295 | Apparatus for recovering carrier | |||
| 293 | 7245672 | Method and apparatus for phase-domain semi-coherent demodulation | |||
| 294 | 7233632 | Symbol timing correction for a phase modulated signal with mutually interfering symbols | |||
| 295 | 7230995 | Interleaver pattern modification | |||
| 296 | 7221718 | I/Q demodulator and I/Q signal sampling method thereof | |||
| 297 | 7218685 | Direct conversion receiver | |||
| 298 | 7203253 | Method and apparatus of cross-correlation | |||
| 299 | 7197091 | Direct conversion receiver with direct current offset correction circuitry | |||
| 300 | 7190742 | Differential receiver circuit with electronic dispersion compensation | |||
| 301 | 7184494 | Regenerated data signal generation apparatus | |||
| 302 | 7180964 | Constellation manipulation for frequency/phase error correction | |||
| 303 | 7177374 | Apparatus and method for sampling frequency offset estimation and correction in a wireless communication system | |||
| 304 | 7173982 | Method and circuit for digitally correcting the frequency of a signal | |||
| 305 | 7161993 | Method and apparatus for coding in a telecommunications system | |||
2006 | |||||
| 306 | 7155181 | High sensitivity RF receiver and method for forming the same | |||
| 307 | 7145966 | Signal quality estimation for continuous phase modulation | |||
| 308 | 7145965 | Digital demodulator for terrestrial receiver | |||
| 309 | 7139334 | Cooperative code-enhanced multi-user communications system | |||
| 310 | 7139332 | Quadrature receiver sampling architecture | |||
| 311 | 7139331 | Characterizing channel response in a single upstream burst using redundant information from training tones | |||
| 312 | 7136422 | Method and apparatus for capacity increase and enhanced communications performance in CATV networks | |||
| 313 | 7133470 | Receiver with offset compensation | |||
| 314 | 7130360 | Apparatus and method for receiving digital signal | |||
| 315 | 7120310 | Image noise reduction method and device | |||
| 316 | 7120210 | Method and system for processing a signal | |||
| 317 | 7120205 | Method and system for multiple-shift code acquisition of optical orthogonal codes in optical CDMA systems | |||
| 318 | 7116837 | Method and apparatus for reducing image noise | |||
| 319 | 7116729 | Trimming of local oscillation in an integrated circuit radio | |||
| 320 | 7116728 | Quadrature alignment in communications receivers using dual delay lines | |||
| 321 | 7113552 | Phase sampling techniques using amplitude bits for digital receivers | |||
| 322 | 7109787 | High-efficiency circuit for demodulating carriers in quadrature | |||
| 323 | 7106815 | Ingress noise reduction in a digital receiver | |||
| 324 | 7106809 | AM/FM/IBOC receiver architecture | |||
| 325 | 7095807 | Method for decoding biphase signals | |||
| 326 | 7095803 | Method of reconstructing data transmitted over a transmission path in a receiver and corresponding device | |||
| 327 | 7095290 | Method and system for generating higher order modulations with QPSK modulator | |||
| 328 | 7092461 | Polyphase receivers | |||
| 329 | 7092458 | Carrier recovery circuit and lock detection circuit for mixed PSK signals | |||
| 330 | 7088787 | Post-FFT scaling to reduce multiple effects | |||
| 331 | 7082171 | Phase shifting applications of universal frequency translation | |||
| 332 | 7079599 | Multi-mode quadrature amplitude modulation receiver for high rate wireless personal area networks | |||
| 333 | 7079596 | Multiband data communication apparatus, communication method of multiband data communication apparatus, and storage medium | |||
| 334 | 7079592 | Complementary code keying demodulation system | |||
| 335 | 7072426 | Demodulation apparatus and method in a communication system employing 8-ary PSK modulation | |||
| 336 | 7072425 | Digital TV receiver | |||
| 337 | 7068737 | Digital TV receiver | |||
| 338 | 7068732 | Receiving apparatus and power control method | |||
| 339 | 7068731 | Apparatus and method for multi-channel receiver | |||
| 340 | 7061993 | CDMA receiver architecture for lower bypass switch point | |||
| 341 | 7058137 | Phase shifters for peak-to-average power ratio reduction in multi-carrier communication systems | |||
| 342 | 7050512 | Receiver architecture | |||
| 343 | 7039855 | Decision function generator for a Viterbi decoder | |||
| 344 | 7039132 | Differential detection of GFSK signal using decision feedback and preamble for carrier, clock and frame synchronization | |||
| 345 | 7039131 | Carrier frequency offset estimation in a wireless communication system | |||
| 346 | 7039130 | RF receiver phase correction circuit using cordic and vector averaging functions and method of operation | |||
| 347 | 7027529 | Demodulation method and demodulation apparatus | |||
| 348 | 7027497 | Adaptive equalization method and adaptive equalizer | |||
| 349 | 7020221 | System and method for an IF-sampling transceiver | |||
| 350 | 7010062 | System and method for multi-carrier modulation | |||
| 351 | 7010061 | Configurable all-digital coherent demodulator system for spread spectrum applications | |||
| 352 | 7010059 | Quadrature demodulator for compensating for gain and phase imbalances between in-phase and quadrature-phase components | |||
| 353 | 7003054 | Receiving method and receiver | |||
| 354 | 6999528 | I/Q demodulator device with three power detectors and two A/D converters | |||
| 355 | 6996193 | Timing error detection circuit, demodulation circuit and methods thereof | |||
| 356 | 6993096 | BS digital broadcasting receiver | |||
| 357 | 6993094 | Coarse frequency synchronization in multicarrier systems | |||
| 358 | 6987816 | Iris data recovery algorithms | |||
| 359 | 6985540 | AM demodulator | |||
| 360 | 6983029 | Blind channel estimation and data detection for PSK OFDM-based receivers | |||
2005 | |||||
| 361 | 6965654 | Frequency offset quantity detecting apparatus | |||
| 362 | 6956924 | Efficient implementation of a decision directed phase locked loop (DD-PLL) for use with short block code in digital communication systems | |||
| 363 | 6947497 | Digital signal receiver and method for receiving digital signal | |||
| 364 | 6944242 | Apparatus for and method of converting soft symbol information to soft bit information | |||
| 365 | 6940927 | Simplified symbol timing tracking circuit for a CPM modulated signal | |||
| 366 | 6922555 | Phase interpolation receiver for angle modulated RF signals | |||
| 367 | 6907027 | Radio communication system | |||
| 368 | 6901120 | Method and apparatus for iterative parameter estimation | |||
| 369 | 6895045 | Balancing amplitude and phase | |||
| 370 | 6876708 | Method and apparatus for demodulation of phase shift keyed signals | |||
| 371 | 6873663 | Reception of M-ary PSK-modulated signals | |||
| 372 | 6862324 | Data aided symbol timing system for precoded continuous phase modulated signals | |||
| 373 | 6859507 | Method and apparatus for correcting a signal | |||
| 374 | 6856656 | Iterative carrier phase tracking decoding system | |||
| 375 | 6850576 | Method and apparatus for reproducing timing, and a demodulating apparatus that uses the method and apparatus for reproducing timing | |||
| 376 | 6850562 | Digital equalizing method and radio communication receiver implementing said method | |||
| 377 | 6847694 | Method for determining the sampling phase and method for synchronization word detection using the phase detection method | |||
2004 | |||||
| 378 | 6834089 | Device for computing tangent angles and associated DQPSK decoder | |||
| 379 | 6823026 | Apparatus and method for baseband detection | |||
| 380 | 6813321 | Digital demodulator | |||
| 381 | 6807221 | Channel spreading device and method for CDMA communication system | |||
| 382 | 6788747 | Receiver capable of receiving analog broadcast and digital broadcast and IC for the same | |||
| 383 | 6785348 | Demodulator and method for demodulating CPFSK-modulated signals using a linear approximation of the CPFSK signal | |||
| 384 | 6785343 | Rectangular-to-polar conversion angle quantizer | |||
| 385 | 6782045 | Frequency error measuring method and frequency error measuring device | |||
| 386 | 6781447 | Multi-pass phase tracking loop with rewind of current waveform in digital communication systems | |||
| 387 | 6778614 | Complex baseband envelope computation | |||
| 388 | 6778594 | Receiver architecture employing low intermediate frequency and complex filtering | |||
| 389 | 6771718 | Method for frequency error estimation | |||
| 390 | 6763074 | Adaptive configurable demodulation system with multiple operating modes | |||
| 391 | 6760393 | Spread-spectrum GMSK/M-ary radio with oscillator frequency correction | |||
| 392 | 6757341 | Digital audio interface signal demodulating device | |||
| 393 | 6754257 | Frame timing synchronization method | |||
| 394 | 6748206 | Low-power-consumption radio receiver | |||
| 395 | 6748037 | Digital broadcasting receiver | |||
| 396 | 6748030 | Differential phase demodulator incorporating 4th order coherent phase tracking | |||
| 397 | 6744839 | Clock regeneration circuit | |||
| 398 | 6744836 | Apparatus, computer readable medium, transmission medium, and method for synchronizing a received signal based on a maximum likelihood principle using a bisection technique | |||
| 399 | 6735259 | Method and apparatus for optimization of a data communications system using sacrificial bits | |||
| 400 | 6735188 | Channel encoding and decoding method and apparatus | |||
| 401 | 6731710 | Method for rapid carrier frequency estimation in a communication system | |||
| 402 | 6731698 | Quadrature demodulation circuit capable for canceling offset | |||
| 403 | 6728321 | Receiving device for angle-modulated signals | |||
| 404 | 6700940 | Carrier reproduction circuit | |||
| 405 | 6693882 | Frequency correction burst detection | |||
| 406 | 6690745 | Circuit for detecting the phase of received signal | |||
| 407 | 6684059 | Frequency generation in a wireless communication system | |||
| 408 | 6683926 | Gain controller with comparator offset compensation for circuit having in-phase and quadrature channels | |||
| 409 | 6683921 | Received-signal absolute phasing apparatus of receiver | |||
| 410 | 6683493 | Timing reproducing device and demodulator | |||
| 411 | 6678342 | Absolute-phasing synchronization capturing circuit | |||
| 412 | 6678336 | Hierarchical transmission digital demodulator | |||
| 413 | 6674731 | Transmission and reception of TCP/IP data over a wireless communication channel | |||
2003 | |||||
| 414 | 6665292 | Transmission and reception of TCP/IP data over a wireless communication channel | |||
| 415 | 6650636 | Transmission and reception of TCP/IP data over a wireless communication channel | |||
| 416 | 6643339 | Receiver and receiving method | |||
| 417 | 6643335 | Signal point arrangement dispersion calculation circuit | |||
| 418 | 6639951 | Digital demodulator | |||
| 419 | 6631171 | QPSK modulation signal receiving unit | |||
| 420 | 6625239 | Circuit for capturing frame sync signal in receiver | |||
| 421 | 6625231 | Adaptive phase demodulation | |||
| 422 | 6624691 | Demodulator for processing digital signal | |||
| 423 | 6615060 | Communication device effectively controlling power supply, method of controlling power supply, and medium | |||
| 424 | 6614856 | Intermediary frequency input QPSK demodulator | |||
| 425 | 6597754 | Compensation of frequency pulling in a time-division duplexing transceiver | |||
| 426 | 6590941 | Semi-NDA frequency correction at the receiving end in a packet transmission system | |||
| 427 | 6566941 | Method and device of phase detection in phase modulation systems | |||
| 428 | 6553080 | Constant envelope modulation communication system | |||
| 429 | 6549763 | Receiving apparatus and method | |||
| 430 | 6546047 | Methods and circuits for optimal equalization | |||
| 431 | 6542557 | Method and apparatus for high speed signaling | |||
| 432 | 6535566 | Demodulating method and receiver apparatus | |||
| 433 | 6535562 | Method and apparatus for rotating the phase of a complex signal | |||
| 434 | 6529559 | Reduced soft output information packet selection | |||
| 435 | 6526107 | Synchronization acquiring circuit | |||
| 436 | 6519303 | Clock reproduction circuit | |||
2002 | |||||
| 437 | 6498818 | Method and system for transmitting information by means of phase modulation | |||
| 438 | 6490326 | Method and apparatus to correct for in-phase and quadrature-phase gain imbalance in communication circuitry | |||
| 439 | 6480552 | Soft output metrics generation for symbol detectors | |||
| 440 | 6470030 | Orthogonal frequency division multiplexing receiver system | |||
| 441 | 6459888 | Method of estimating carrier frequency in a digital mobile communications system through multiple hypotheses performed on the received signal | |||
| 442 | 6445685 | Uplink demodulator scheme for a processing satellite | |||
| 443 | 6442216 | Digital demodulator using boxcar filters and boxcar filter sections | |||
| 444 | 6430212 | Spread-spectrum GMSK/M-ary radio | |||
| 445 | 6415004 | Phase detector, timing recovery device using the same, and a demodulator using the timing recovery device | |||
| 446 | 6396883 | Method for detection of pilot tones | |||
| 447 | 6377620 | Balancing amplitude and phase | |||
| 448 | 6363131 | Method and apparatus for joint timing synchronization and frequency offset estimation | |||
| 449 | 6363100 | Radio data communication system using spread spectrum scheme | |||
| 450 | 6359951 | Method and apparatus for high speed signaling | |||
| 451 | 6359518 | Signal level adjusting circuit using coupling stage for preventing variation from resulting in each operating point of first amplifying stage and second amplifying stage | |||
| 452 | 6351503 | Threshold extension block phase estimator for quasi-coherent communications systems | |||
2001 | |||||
| 453 | 6324234 | Synchronization and clock recovery | |||
| 454 | 6301291 | Pilot symbol assisted modulation and demodulation in wireless communication systems | |||
| 455 | 6298099 | Constant envelope modulation communication system | |||
| 456 | 6282235 | Signal processing apparatus | |||
| 457 | 6272190 | System for wireless transmission and receiving of information and method of operation thereof | |||
| 458 | 6271950 | Optical differential phase shift keying transmission system having multiplexing, routing and add/replace capabilities | |||
| 459 | 6269128 | Clock recovery control in differential detection | |||
| 460 | 6263031 | Method and apparatus for signal burst classification | |||
| 461 | 6256487 | Multiple mode transmitter using multiple speech/channel coding modes wherein the coding mode is conveyed to the receiver with the transmitted signal | |||
| 462 | 6246729 | Method and apparatus for decoding a phase encoded data signal | |||
| 463 | 6246281 | Absolute phasing circuit | |||
| 464 | 6243429 | Data demodulator for correcting bit errors | |||
| 465 | 6229471 | Method for detecting a pulse-usable system | |||
| 466 | 6218896 | Vectored demodulation and frequency estimation apparatus and method | |||
| 467 | 6198783 | System for wireless serial transmission of encoded information | |||
2000 | |||||
| 468 | 6154490 | Signal processing apparatus | |||
| 469 | 6134429 | Direct digital down conversion of a 10.8 MHz intermediate frequency signal in the personal handy phone system | |||
| 470 | 6125152 | Output signal modification providing phase amplified information for soft decision decoding | |||
| 471 | 6125136 | Method and apparatus for demodulating trellis coded direct sequence spread spectrum communication signals | |||
| 472 | 6122327 | Radio receiver | |||
| 473 | 6115419 | Adaptive digital beamforming receiver with .pi./2 phase shift to improve signal reception | |||
| 474 | 6115417 | Signal quality measuring scheme | |||
| 475 | 6111923 | System and method for calculating a state transition metric in a viterbi equalizer | |||
| 476 | 6108373 | Process and device for detecting loss of carrier recovery and of determining the Eb/No ratio of a digital transmission link | |||
| 477 | 6104762 | Timing recovery apparatus and a diversity communication apparatus using the same | |||
| 478 | 6088411 | Method and apparatus for a unique word differential detection and demodulation using the unique word differential detection | |||
| 479 | 6088410 | False-synchronization detection device for bit-synchronous circuit of . .pi/4-shift DQPSK demodulator | |||
| 480 | 6078630 | Phase-based receiver with multiple sampling frequencies | |||
| 481 | 6072842 | Carrier-recovery loop with stored initialization in a radio receiver | |||
| 482 | 6055281 | Passband DQPSK detector for a digital communications receiver | |||
| 483 | 6038270 | Radio receiver apparatus and radio receiving method | |||
| 484 | 6032029 | Receiver selecting either a first demodulated signal or a second demodulated signal in accordance with characteristics of a received signal | |||
| 485 | 6026131 | Automatic gain control systems | |||
| 486 | 6018556 | Programmable loop filter for carrier recovery in a radio receiver | |||
1999 | |||||
| 487 | 5995541 | Method and apparatus for self-calibration and testing of ZPSK transmitter/receiver IC's | |||
| 488 | 5995520 | Carrier slip compensation method for coherent detection | |||
| 489 | 5974040 | Receiver and transmitter-receiver having variable attenuator to avoid saturation by a strong signal | |||
| 490 | 5966416 | Verification of PN synchronization in a spread-spectrum communications receiver | |||
| 491 | 5963590 | Method for receiving digital radio signals and a digital radio signals receiver | |||
| 492 | 5960030 | Carrier detection unit and carrier detection method | |||
| 493 | 5956376 | Apparatus for varying a sampling rate in a digital demodulator | |||
| 494 | 5943369 | Timing recovery system for a digital signal processor | |||
| 495 | 5940451 | Automatic gain control in quadrature phase shift keying demodulator | |||
| 496 | 5923223 | Transmission system in which either an in-phase or quadrature component of a transmitted signal is delayed prior to modulation | |||
| 497 | 5909471 | Method and system for rapid initial control signal detection in a wireless communications system | |||
| 498 | 5905767 | Timing recovery apparatus and a diversity communication apparatus using the same | |||
| 499 | 5903186 | Demodulator of MSK signal | |||
| 500 | 5875216 | Weight generation in stationary interference and noise environments | |||
1998 | |||||
| 501 | 5848105 | GMSK signal processors for improved communications capacity and quality | |||
| 502 | 5844938 | Carrier based data operated squelch | |||
| 503 | 5841817 | Apparatus and methods for signal recovery in a digital communication system | |||
| 504 | 5822379 | Device for receiving digital signals | |||
| 505 | 5805642 | Method for detecting differently encoded signal sequences using a recursively computed reference signal | |||
| 506 | 5805018 | High-speed demodulating method of burst data and apparatus for same | |||
| 507 | 5790604 | Method and apparatus for automatic frequency correction acquisition | |||
| 508 | 5787125 | Apparatus for deriving in-phase and quadrature-phase baseband signals from a communication signal | |||
| 509 | 5761250 | Iterative filtering frequency estimator and estimation method | |||
| 510 | 5760645 | Demodulator stage for direct demodulation of a phase quadrature modulated signal and receiver including a demodulator stage of this kind | |||
| 511 | 5751773 | System for wireless serial transmission of encoded information | |||
| 512 | 5748682 | Oscillator frequency offset error estimator for communications systems | |||
| 513 | 5748680 | Coarse frequency burst detector for a wireline communications system | |||
| 514 | 5745532 | System for wireless transmission and receiving of information and method of operation thereof | |||
| 515 | 5742644 | Receiving circuitry for receiving serially transmitted encoded information | |||
| 516 | 5732105 | Method of estimating signal quality in a DPSK demodulator | |||
| 517 | 5721756 | Digital receiver with tunable analog parameters and method therefor | |||
| 518 | 5719903 | Method and apparatus for receiving symbols | |||
| 519 | 5717725 | System for wireless transmission and receiving of information through a computer bus interface and method of operation | |||
| 520 | 5710798 | System for wireless transmission and receiving of information and method of operation thereof | |||
| 521 | 5710793 | Error signal quantization method and hardware for mixed blind and decision directed equalization | |||
| 522 | 5706313 | Soft decision digital communication method and apparatus | |||
1997 | |||||
| 523 | 5696769 | Decision error correcting method of a digital communication system and the digital communication system for the same | |||
| 524 | 5694428 | Transmitting circuitry for serial transmission of encoded information | |||
| 525 | 5694415 | Signal communication system capable of recognizing reception of reception desired signal | |||
| 526 | 5668838 | Instantaneous phase detecting circuit and clock recovery signal generating circuit incorporated in differential demodulator | |||
| 527 | 5648986 | Receiver in digital radio communication device with selective equalization | |||
| 528 | 5646698 | Pre-frame-comb as well as "pre-line-comb" partial-response filtering of BPSK buried in a TV signal | |||
| 529 | 5627864 | Phase shift correcting apparatus of a sync detector in a satellite broadcasting reception system | |||
| 530 | 5625643 | Modulator and demodulator apparatus | |||
| 531 | 5623225 | Quadrature signal demodulation using quantizing and accumulating | |||
| 532 | 5621483 | Polarity selection circuit for bi-phase stable FPLL | |||
| 533 | 5612977 | Automatic frequency control circuit for a receiver of phase shift keying modulated signals | |||
1996 | |||||
| 534 | 5579343 | Soft decision circuit | |||
| 535 | 5566214 | Automatic noise normalization and reacquisition control for a QPSK demodulator symbol tracking loop | |||
| 536 | 5566184 | Phase ambiguity removing device | |||
| 537 | 5565930 | Receiver with oversampling analog-to-digital conversion for digital signals accompanied by analog TV signals | |||
| 538 | 5563908 | Modulator and demodulator apparatus | |||
| 539 | 5563664 | Pre-frame-comb as well as pre-line-comb partial-response filtering of BPSK buried in a TV signal | |||
| 540 | 5550868 | .pi./4-DQPSK delay spread detection and compensation apparatus and method | |||
| 541 | 5537442 | Instantaneous phase detecting circuit and clock recovery signal generating circuit incorporated in differential demodulator | |||
| 542 | 5535252 | Clock synchronization circuit and clock synchronizing method in baseband demodulator of digital modulation type | |||
| 543 | 5533068 | Frequency error detecting device capable of correctly detecting a frequency error between a carrier frequency and a standard frequency | |||
| 544 | 5524026 | Method and apparatus for judging timing phase of modem which is used in data communication | |||
| 545 | 5517530 | Method and apparatus for dual demodulation of mobile channel signals | |||
| 546 | 5490177 | Method and apparatus for determining signal quality | |||
1995 | |||||
| 547 | 5457710 | Method and circuit for detecting burst signal | |||
| 548 | 5446763 | Apparatus and method for converting soft symbols into soft bits | |||
| 549 | 5440265 | Differential/coherent digital demodulator operating at multiple symbol points | |||
| 550 | 5440259 | Frequency stabilizing circuit for a .pi./4 shift QPSK signal receivers | |||
| 551 | 5379324 | System and method for calculating channel gain and noise variance of a communication channel | |||
1994 | |||||
| 552 | 5375143 | Method for channel adaptive detecting/equalizing | |||
| 553 | 5355243 | Direct detecting of optical PSK signals | |||
| 554 | 5313493 | Plural-differential, phase-shift-keyed modulation, communication system | |||
| 555 | 5301364 | Method and apparatus for digital automatic gain control in a receiver | |||
| 556 | 5276685 | Digital automatic gain control | |||
1993 | |||||
| 557 | 5263052 | Viterbi equalizer for radio receiver | |||
| 558 | 5261120 | Method and apparatus for transmitting a signal with an offset which follows a received signal | |||
| 559 | 5241545 | Apparatus and method for recovering a time-varying signal using multiple sampling points | |||
| 560 | 5237287 | Demodulating method and apparatus particularly for demodulating a differential phase-shift keying signal | |||
| 561 | 5228043 | Direct modulation phase shift keying (DM-PSK) transmission system | |||
| 562 | 5214675 | System and method for calculating channel gain and noise variance of a communication channel | |||
| 563 | 5212826 | Apparatus and method of DC offset correction for a receiver | |||
| 564 | 5204977 | Apparatus and method of automatic gain control in a receiver | |||
| 565 | 5195106 | Method for channel adaptive detecting/equalize | |||
1992 | |||||
| 566 | 5121414 | Carrier frequency offset equalization | |||
| 567 | 5107521 | Single analog path multi-data rate matched filtered demodulator | |||
| 568 | 5083304 | Automatic gain control apparatus and method | |||
1991 | |||||
| 569 | 5062155 | Modulated light wave demodulator | |||
| 570 | 5050176 | Direct modulation phase-shift-keying system and method | |||
| 571 | 5048059 | Log-polar signal processing | |||
| 572 | 5014283 | Arrangement for equalizing and demodulating binary continuous-phase angle-modulated data signals with modulation index 0.5 | |||
1990 | |||||
| 573 | 4942592 | Synchronous receiver for minimum shift keying transmission | |||
| 574 | 4932029 | Method and apparatus for correcting errors in convolutional code signals | |||
| 575 | 4922209 | Clock recovery device | |||
| 576 | 4905256 | Method and device for multistate modulation and demodulation with adjustable protection level | |||
1989 | |||||
| 577 | 4873683 | TDMA radio system employing BPSK synchronization for QPSK signals subject to random phase variation and multipath fading | |||
| 578 | 4866449 | Multichannel alignment system | |||
| 579 | 4835421 | Squaring circuits in MOS integrated circuit technology | |||
| 580 | 4833696 | System for controlling operation mode of modulator/demodulator | |||
| 581 | 4827488 | Demodulator for PSK-modulated signals | |||
1987 | |||||
| 582 | 4698521 | Bi-directional current switch | |||
| 583 | 4696056 | Frequency converting circuit | |||
| 584 | 4674105 | Digital signal processor | |||
| 585 | 4648134 | Optical receivers | |||
1986 | |||||
| 586 | 4626789 | Demodulating circuit for data signal | |||
| 587 | 4617678 | Apparatus for detecting and recovering binary data from an input signal | |||
| 588 | 4592009 | MSK surface acoustic wave convolver | |||
| 589 | 4577334 | Digital data receiver including timing adjustment circuit | |||
1985 | |||||
| 590 | 4554509 | Frequency shift keyed demodulation system | |||
| 591 | 4547736 | Phase lock loop PSK demodulator with sweep control circuit | |||
| 592 | 4520492 | Method for determining the optimum sampling times for a QPSK or QAM received signal | |||
| 593 | 4503545 | System for evaluating transmission line impairments | |||
| 594 | 4498050 | Demodulation device for composite PSK-PSK modulated waves | |||
1984 | |||||
| 595 | 4449222 | Digital modulation quality monitor | |||
1982 | |||||
| 596 | 4355303 | Receiver for a distribution network power line carrier communication system | |||
| 597 | 4352071 | Planar QPSK demodulator | |||
1981 | |||||
| 598 | 4281293 | Planar QPSK demodulator | |||
1980 | |||||
| 599 | 4223326 | Method and device for reducing the probability of loss of a character in a digital transmission employing biphase coding | |||
| 600 | 4215427 | Carrier tracking apparatus and method for a logging-while-drilling system | |||
| 601 | 4215425 | Apparatus and method for filtering signals in a logging-while-drilling system | |||
| 602 | 4193033 | Quadrature transposition stage | |||
1979 | |||||
| 603 | 4146841 | Technique for combatting jitter in multiple phase transmission system | |||
1978 | |||||
| 604 | 4109101 | Correlative converter between a 2.sup.n -ary code sequence and a 2.sup.n+1 -phase carrier pulse sequence | |||
| 605 | 4099121 | Spatial diversity satellite communications system with error control | |||
| 606 | 4072905 | Wide acquisition range MSK demodulator input circuit | |||
1977 | |||||
| 607 | 4052557 | Phase-jump detector and corrector method and apparatus for phase-modulated communication systems that also provides a signal quality indication | |||
| 608 | 4035625 | Method and apparatus for performing binary equalization in voice-band phase-modulation modems | |||
| 609 | 4028490 | MSK digital data synchronization detector | |||
| 610 | 4020283 | MSK digital data synchronization detector | |||
1976 | |||||
| 611 | 3992673 | System for demodulating a digital modulated wave | |||
| 612 | 3992617 | Chopping correlator for a MSK data signal | |||
| © 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017 | |||||