| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 07/09/1997 | CN1154027A Phase error detecting method and phase tracking loop circuit |
| 07/09/1997 | CN1154018A Frequency synthesizer |
| 07/09/1997 | CN1154017A Digital radiocommunication receiver |
| 07/09/1997 | CN1154011A Apparatus and method for improving stability of transmitting frequency by using COSTAS loop section in communication system of half duplex transmitting method |
| 07/08/1997 | US5646963 Fast automatic gain control |
| 07/08/1997 | US5646962 Apparatus for reducing electromagnetic radiation from a differentially driven transmission line used for high data rate communication in a computerized tomography system |
| 07/08/1997 | US5646935 Hierarchical quadrature frequency multiplex signal format and apparatus for transmission and reception thereof |
| 07/08/1997 | US5646698 Pre-frame-comb as well as "pre-line-comb" partial-response filtering of BPSK buried in a TV signal |
| 07/03/1997 | WO1997023981A1 Method and apparatus for demodulating a received signal |
| 07/03/1997 | WO1997023953A1 High-frequency device |
| 07/03/1997 | DE19654585A1 One-bit digital signal transmission device |
| 07/03/1997 | DE19548888A1 Data transmission method via modem |
| 07/02/1997 | EP0782295A2 Device for symbol synchronisation in digital communications |
| 07/02/1997 | EP0782294A2 Synchronization device for digital communications |
| 07/02/1997 | EP0782292A2 Receiver which ensures the proper separation of convolutionally encoded, multiplexed signals |
| 07/02/1997 | EP0782271A1 Phase locked loop with controllable response time |
| 07/02/1997 | EP0782063A1 Noise reduction in digital frequency synthesizers |
| 07/02/1997 | EP0782062A1 Reducing noise in digital frequency synthesizers |
| 07/02/1997 | EP0781481A1 Blind equalizing apparatus |
| 07/02/1997 | EP0781467A2 Quadrature modulator with integrated distributed rc filters |
| 07/01/1997 | US5644606 Receiver with two synchronization loops |
| 07/01/1997 | US5644602 Direct digital frequency synthesizer for use in a subscriber unit of a wireless digital communication system |
| 07/01/1997 | US5644601 Method and apparatus for bias suppression in a VCO based FM transmission system |
| 07/01/1997 | US5644600 Multi-valued signal decoding circuit having bit synchronization signal timing transition which is sampled and held |
| 07/01/1997 | US5644597 Adaptive equalizer and adaptive diversity equalizer |
| 07/01/1997 | US5644594 Power-conserving modem |
| 07/01/1997 | US5644573 Methods for coordinating upstream discrete multi-tone data transmissions |
| 07/01/1997 | US5644260 RC/CR automatic quadrature network |
| 06/26/1997 | WO1997023080A1 Method and apparatus for automatic frequency correction acquisition |
| 06/26/1997 | WO1997023079A1 Split harmonic frequency modulation data transmission system |
| 06/26/1997 | WO1997023051A2 Radio apparatus |
| 06/26/1997 | WO1997023032A1 Digital calibration of a transceiver |
| 06/26/1997 | CA2240483A1 Multisensor equalisation method and device enabling multisensor reception in the presence of interference and multipath propagation |
| 06/25/1997 | EP0781014A2 Apparatus for the display of signal states of a QAM signal |
| 06/25/1997 | EP0781013A2 Data transmission and reception system |
| 06/25/1997 | EP0781012A2 Arithmetic unit |
| 06/25/1997 | EP0781011A1 ASK receiver, particularly for the remote control of motor vehicles |
| 06/25/1997 | EP0780987A1 Coding/decoding system using multilevel block coded MAQ-16 modulation |
| 06/25/1997 | EP0780974A1 Discrete phase modulator |
| 06/25/1997 | EP0780970A2 Broad-band amplifier circuit and high-speed communication element using the same |
| 06/25/1997 | CN1152982A Method and device for synchronization of transmitter and receiver in a digital system |
| 06/25/1997 | CN1152827A Communications device |
| 06/24/1997 | US5642385 Frequency detector for carrier frequency synchronization |
| 06/24/1997 | US5642384 Trellis coded modulation scheme with low envelope variation for mobile radio by constraining a maximum modulus of a differential phase angle |
| 06/24/1997 | US5642380 Data communication system and modem therefor |
| 06/24/1997 | US5642379 Technique for modulating orthogonal signals with one or more analog or digital signals |
| 06/24/1997 | US5642369 Quick resynchronization receiver for sequential decoding of convolutional codes |
| 06/20/1997 | CA2193404A1 Coding-decoding system using multilevel block-coded maq-16 modulation |
| 06/19/1997 | WO1997022185A2 Re-orthogonalization of wideband cdma signals |
| 06/18/1997 | EP0779726A2 Digital Communication Apparatus |
| 06/18/1997 | EP0779000A1 Code acquisition in a cdma communication system using multiple walsh channels |
| 06/18/1997 | EP0778996A1 Process and device for reshaping pairs of signals |
| 06/18/1997 | EP0778995A1 Receiver with quadrature decimation stage, method of processing digital signals |
| 06/18/1997 | EP0704122B1 Process and arrangement for adjusting the local oscillators of a receiver in a multi-channel transmission system |
| 06/18/1997 | CN1152210A Demodulation method and device |
| 06/18/1997 | CN1152209A Digital quadrature amplitude modulation |
| 06/17/1997 | US5640431 Method and apparatus for offset frequency estimation for a coherent receiver |
| 06/17/1997 | US5640428 Direct conversion receiver |
| 06/17/1997 | US5640427 Demodulator |
| 06/17/1997 | US5640426 Clock recovery circuit of demodulator |
| 06/17/1997 | US5640425 Fast-acting costas loop |
| 06/17/1997 | US5640424 Direct downconverter circuit for demodulator in digital data transmission system |
| 06/17/1997 | US5640423 Method for signal transmission using spectrally efficient orthogonal modulation |
| 06/17/1997 | US5640422 Digital communications modulation method and apparatus |
| 06/17/1997 | US5640418 Equalizer, reception system having an equalizer, data conversion method and apparatus thereof |
| 06/17/1997 | US5640417 QAM detector which compensates for received symbol distortion induced by a cellular base station |
| 06/17/1997 | US5640125 Digital PSK-type demodulator having clock recovery before carrier recovery |
| 06/12/1997 | WO1997013349A3 Receiver architecture for receiving angle-modulated/scanned carrier signals of different frequency |
| 06/11/1997 | CN1151813A Data frame structure and synchronization system for digital television signal |
| 06/11/1997 | CN1151669A Signal determination, receiving device and method of signal determination, channel state inference |
| 06/10/1997 | US5638406 Carrier detector |
| 06/10/1997 | US5638405 Dual-mode baseband controller for radio-frequency interfaces relating to digital cordless telephones |
| 06/10/1997 | US5638404 Pre-compensated frequency modulation (PFM) |
| 06/10/1997 | US5638403 Low-splatter peak-to-average signal reduction with interpolation |
| 06/10/1997 | US5638401 Method and apparatus for generating plural quadrature modulated carriers |
| 06/10/1997 | US5638400 Method for updating an equalization speed of an equalizer |
| 06/10/1997 | US5638361 Frequency hopped return link with net entry channel for a satellite personal communications system |
| 06/10/1997 | US5638306 Testing hooks for testing an integrated data processing system |
| 06/10/1997 | US5638140 FPLL having AFC filter with limited phase shift |
| 06/10/1997 | CA2120216C Quadrature modulator |
| 06/10/1997 | CA2110149C High frequency signal detecting circuit |
| 06/05/1997 | WO1997020417A1 Digital demodulator |
| 06/05/1997 | WO1997020416A1 Phase modulator efficiently utilizing waveform storing section |
| 06/05/1997 | WO1997020399A1 Transmission system for a non linear transmission medium |
| 06/05/1997 | WO1997020398A1 Highly stable frequency synthesizer loop with feedforward |
| 06/05/1997 | WO1997013378A3 Apparatus and method for determining and using channel state information |
| 06/04/1997 | EP0777354A2 Digital transmission apparatus using differential coding and forward error correction |
| 06/04/1997 | EP0777336A1 PSK Broadcast transmitter and predistortion method |
| 06/04/1997 | EP0777332A1 A Microwave multiphase detector |
| 06/04/1997 | EP0776557A1 Multi-band, multi-mode spread-spectrum communication system |
| 06/04/1997 | EP0776547A1 A digital radio system, a digital radio device, and a quadrature demodulator |
| 06/04/1997 | EP0707766B1 Start-stop receiver |
| 06/04/1997 | EP0532504B1 Cable television radio frequency data processor |
| 06/04/1997 | CN1151093A Radio communication apparatus and method |
| 06/03/1997 | US5636253 Method for detecting erasures in received digital data |
| 06/03/1997 | US5636252 Automatic gain control of radio receiver for receiving digital high-definition television signals |
| 06/03/1997 | US5636251 Receiver for a trellis coded digital television signal |
| 06/03/1997 | US5636250 Automatic VSB/QAM modulation recognition method and apparatus |
| 06/03/1997 | US5636247 Information transmission system |
| 06/03/1997 | US5636246 Multicarrier transmission system |