| Patents for H04L 27 - Modulated-carrier systems (89,721) |
|---|
| 04/16/1998 | WO1998016015A1 Method and apparatus for decoding block codes |
| 04/16/1998 | CA2267837A1 Method and apparatus for decoding block codes |
| 04/16/1998 | CA2267799A1 Process for transmitting data in packets on a linearly variable carrier frequency and transmitter and receiver implementing this process |
| 04/15/1998 | EP0836316A1 Data communication apparatus |
| 04/15/1998 | EP0836305A2 TCM scheme with fractional bit rates, framing signals and constellation shaping |
| 04/15/1998 | EP0836304A2 Tracking of sampling frequency in a DAB receiver |
| 04/15/1998 | EP0836303A2 Reduction of peak to average power ratio in MCM systems |
| 04/15/1998 | EP0836294A1 Transmission system and method for detecting a modification in phase for such a system |
| 04/15/1998 | EP0835593A2 Code division multiple access (cdma) communication system |
| 04/15/1998 | EP0835568A2 Cdma modem |
| 04/15/1998 | EP0835565A1 Group modulator for a broadband communications system |
| 04/15/1998 | EP0835561A1 Modulation method and circuit arrangement for the transmission of data signals |
| 04/15/1998 | EP0835557A1 Digitally compensated direct conversion receiver |
| 04/15/1998 | EP0835549A1 Methods and apparatus for modulating, demodulating and amplifying |
| 04/15/1998 | CN1179251A Method and apparatus for processing burst signals in a telecommunication system |
| 04/15/1998 | CN1179041A Vorsh QPSK sheet modulating equipment for porducing signal waveform |
| 04/14/1998 | US5740520 Channel correction transceiver |
| 04/14/1998 | US5740204 Digital radiocommuncation receiver |
| 04/14/1998 | US5740203 Trellis demapper of a convolutional decoder for decoding pragmatic trellis codes suitable for use in a multi-channel receiver of satellite, terrestrial and cable transmitted FEC compressed-digital television data |
| 04/14/1998 | US5740202 Method and apparatus for digitally evaluating the phase of a modulated carrier |
| 04/14/1998 | US5739709 Phase frequency detecting circuit |
| 04/09/1998 | WO1998015083A2 Signal transformation method and apparatus |
| 04/09/1998 | WO1998015056A1 A filter co-processor |
| 04/09/1998 | WO1998014042A2 Method of high-order codification and transmission of information |
| 04/09/1998 | DE19639580A1 Acoustic echo reduction method for hands-free telephone set |
| 04/08/1998 | EP0835012A2 A DQPSK mapping circuit |
| 04/08/1998 | EP0835000A1 Method for transmitting a low-rate additional channel in high-rate coherent optical transmission systems |
| 04/08/1998 | EP0834997A1 High-frequency signal receiver |
| 04/08/1998 | EP0834228A1 Frequency- and phase-regulator circuit for vsb receivers |
| 04/08/1998 | EP0746910A4 Modem-channel bank converter |
| 04/08/1998 | EP0706730B1 Method and apparatus for automatic gain control and dc offset cancellation in quadrature receiver |
| 04/08/1998 | EP0642720A4 Data communication receiver having burst error protected data synchronization. |
| 04/08/1998 | EP0629325A4 Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a cdma cellular communications system. |
| 04/07/1998 | US5737694 Tuner circuit |
| 04/07/1998 | US5737252 Circuit arrangement comprising a permutation unit and method of processing a batch of items |
| 04/07/1998 | US5736840 Phase shifter and communication system using the phase shifter |
| 04/07/1998 | CA2111579C Digital fsk demodulator |
| 04/02/1998 | WO1998014005A1 Multiple modulation format television signal receiver system |
| 04/02/1998 | WO1998013960A2 Pipeline communication system |
| 04/02/1998 | WO1998013929A1 Receiver capable of demodulating multiple digital modulation formats |
| 04/02/1998 | DE19634134C1 Verfahren zum Übertragen von Daten zwischen einem Terminal und einem tragbaren Datenträger über eine drahtlose elektromagnetische Übertragungsstrecke A method of transmitting data between a terminal and a portable data carrier via a wire-free electromagnetic transmission link |
| 04/02/1998 | CA2267334A1 Pipeline communication system |
| 04/01/1998 | EP0833509A1 An interface for an asymmetric digital subscriber line transceiver |
| 04/01/1998 | EP0833484A1 Device and method for vector equalization of an OFDM signal |
| 04/01/1998 | EP0833483A2 Phase comparator for demodulator using differential detection |
| 04/01/1998 | EP0833482A2 Method and apparatus for preamble-less demodulation |
| 04/01/1998 | EP0833476A2 Fast resynchronization system for high-speed data transmission |
| 04/01/1998 | EP0833470A2 Method of frame synchronization |
| 04/01/1998 | EP0833460A2 Method and apparatus for frequency domain ripple compensation for a communications transmitter |
| 04/01/1998 | EP0833456A2 Spread spectrum communication system |
| 04/01/1998 | EP0832531A1 Method and apparatus for signal classification using i/q quadrant histogram |
| 04/01/1998 | EP0832528A1 Reverse path allocation and contention resolution scheme for a broadband communications system |
| 04/01/1998 | EP0746932A4 Wireless direct sequence spread spectrum digital cellular telephone system |
| 04/01/1998 | EP0679309A4 Digital pulse detector. |
| 04/01/1998 | CN1178052A Multicarrier communication system and method for peak power control |
| 04/01/1998 | CN1178046A Method and apparatus for using walsh shift reying in a spread spectrum communication system |
| 04/01/1998 | CN1177876A Receiving apparatus using automatic frequency control |
| 04/01/1998 | CN1177875A Correcting-code generating circuit and modulation device using same |
| 04/01/1998 | CN1177789A Local frequency correction |
| 03/31/1998 | US5734972 Automatic frequency controller |
| 03/31/1998 | US5734703 A modem |
| 03/31/1998 | US5734681 Process and system for transferring vector signal with precoding for signal power reduction |
| 03/31/1998 | US5734678 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 03/31/1998 | US5734676 Apparatus, method and article of manufacture for carrier frequency compensation in a FM radio receiver |
| 03/31/1998 | US5734577 Adaptive IIR multitone detector |
| 03/31/1998 | CA2121002C Apparatus and method for determining a point in time for detecting a sampled signal in a receiver |
| 03/26/1998 | WO1998012880A2 Multiple carrier transmission system with differential coding of subcarriers |
| 03/26/1998 | WO1998012874A1 Set top terminal for an interactive information distribution system |
| 03/26/1998 | WO1998012850A1 Method and apparatus for constant envelope quadrature amplitude modulation |
| 03/26/1998 | WO1998012849A1 Demodulation of asynchronously sampled data by means of detection-transition sample estimation in a shared multi-carrier environment |
| 03/26/1998 | WO1998012848A1 Interference mitigation by joint detection of cochannel signals |
| 03/26/1998 | WO1998012836A1 Component timing recovery system for qam |
| 03/26/1998 | WO1998012800A1 Adaptive digital predistortion linearization and feed-forward correction of rf power amplifier |
| 03/26/1998 | DE19715701A1 Carrier recovery phase detector e.g. for QAM signal |
| 03/26/1998 | DE19638654A1 Verfahren zur digitalen Nachrichtenübertragung A method for digital communications |
| 03/25/1998 | EP0831627A2 Assignment of subcarriers to an antenna array in a multicarrier transmitter |
| 03/25/1998 | EP0831626A1 Method and system for determining a carrier frequency error |
| 03/25/1998 | EP0831625A2 Phase detection circuit and differential detection demodulator |
| 03/25/1998 | EP0831624A2 A modem |
| 03/25/1998 | EP0831595A2 Digital modulated signal receiver |
| 03/25/1998 | EP0831416A2 Device for inductive high-frequency data exchange |
| 03/25/1998 | EP0830771A1 Method and circuit arrangement for improving carrier separation for the transmission of ofdm signals |
| 03/25/1998 | CN1177428A Improved channel estimation in communication system |
| 03/25/1998 | CN1177239A Method of combing received signal of diversity type radio device and diversing type radio device |
| 03/24/1998 | US5732113 Timing and frequency synchronization of OFDM signals |
| 03/24/1998 | US5732111 Frequency error compensation for direct sequence spread spectrum systems |
| 03/24/1998 | US5732110 Receiver having an adjustable symbol slice demodulator |
| 03/24/1998 | US5732109 Phase detector |
| 03/24/1998 | US5732105 Method of estimating signal quality in a DPSK demodulator |
| 03/24/1998 | US5732068 Signal transmitting apparatus and signal receiving apparatus using orthogonal frequency division multiplexing |
| 03/23/1998 | CA2216661A1 Process and device for detecting a carrier frequency error |
| 03/21/1998 | CA2215859A1 Method and apparatus for constant envelope quadrature amplitude modulation |
| 03/19/1998 | WO1998011698A1 Methods and apparatus for encoding and decoding data |
| 03/19/1998 | WO1998011688A1 A decoding technique for tail biting codes |
| 03/19/1998 | WO1998011683A1 Arrangements and methods for generating a radio frequency signal |
| 03/18/1998 | EP0829990A2 Method for demodulating high-level M-QAM signals without knowledge of the transmitted symbols |
| 03/18/1998 | EP0829988A2 Symbol synchronization and sampling frequency adjustment in an OFDM receiver |
| 03/18/1998 | EP0829987A2 Setting of decision thresholds in MFSK receivers |
| 03/18/1998 | EP0829982A1 Orthogonal modulation scheme |
| 03/18/1998 | EP0829978A2 Digital optical transmitter and digital optical receiver making communication by superimposing subdata on modulated waveform of main data |