Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 27 - Modulated-carrier systems
Patents for H04L 27 - Modulated-carrier systems (89,721)
12/2000
12/17/2000CA2311833A1 Mixed baseband-if predistortion system for linearising power amplifiers
12/16/2000CA2310424A1 N-port receiver with rf/lo isolation
12/16/2000CA2310393A1 Optimized synchronization preamble structure
12/14/2000WO2000076165A1 Automatic frequency controller
12/14/2000WO2000076163A1 Phase detector, timing reproducing device comprising the same, and demodulator comprising the same
12/14/2000WO2000076115A1 Method and device in a multi-tone transmission system
12/14/2000WO2000076114A1 Adaptive modulation system and method for tdma
12/14/2000WO2000076058A1 Fm modulator using both a pll and a quadrature phase modulator
12/14/2000WO2000051236A3 Method and apparatus for frequency synchronisation in a digital radio communications system
12/14/2000WO2000048370A3 Modem with a reduced state maximum likelihood sequence estimator
12/14/2000WO2000041521A3 Psk burst receiver with phase adjustment and timing and data recovery
12/14/2000DE19926658A1 Empfänger für zwei orthogonal polarisierte Signale Receiver for two orthogonally polarized signals
12/13/2000EP1059787A1 Adjustable time- and frequency interleaving system for digital data transmission between fixed or mobile stations
12/13/2000EP1059786A1 Demodulator of receiver
12/13/2000EP1059785A2 Reconfigurable modem using multirate signal processing
12/13/2000EP1059759A2 Sample timing control for demodulation of phase-modulated signals
12/13/2000EP1059748A2 Soft selection combining method in a digital transmission system based on successive erasures of frequency band components
12/13/2000EP1059738A2 Mitigation of co-channel interference in synchronization bursts in a multi-beam communication system
12/13/2000EP1058988A1 Method and circuit for demodulating a digital frequency-modulated signal
12/13/2000EP1058968A1 Quadrature-free rf receiver for directly receiving angle modulated signal
12/13/2000EP0754379A4 Method and apparatus for robust communications based upon angular modulation
12/13/2000CN1276948A Power conservation for POTS and modulated data transmission
12/13/2000CN1276928A Multi-carrrier transmitting apparatus and method
12/13/2000CN1276652A Self-inferring method of receiver for satellite broadcasting
12/13/2000CN1276651A Digital broadcast receiver
12/12/2000US6161203 Communication system utilizing Reed-Solomon code to achieve auto frame synchronization acquistion
12/12/2000US6160858 MSK signal processing in a GPS correlator channel
12/12/2000US6160857 Demodulator for frequency shift keying signals
12/12/2000US6160855 Digital modulation method and digital communication system
12/12/2000US6160854 Concatenated trellis coded modulation and linear block codes
12/12/2000US6160843 Communication server apparatus providing XDSL services and method
12/12/2000US6160821 Synchronization of digital communication systems
12/12/2000US6160820 Multi-carrier transmission systems
12/12/2000US6160791 Transmission system for the transmission of power control information in an OFDM system
12/12/2000US6160443 Dual automatic gain control in a QAM demodulator
12/12/2000CA2191732C Automatic modulation mode selecting unit and method for modems
12/12/2000CA2029802C Receiver with direct quadrature sampling of the input signal
12/10/2000CA2274171A1 Loop driver for pots, xdsl, or integrated pots/xdsl interface
12/07/2000WO2000074415A1 Automatic frequency allocation (afa) for wireless office systems sharing the spectrum with public systems
12/07/2000WO2000074375A1 Digital television system for 8 mhz channels
12/07/2000WO2000074331A1 A multiple access communication system using chaotic signals and method for generating and extracting chaotic signals
12/07/2000WO2000074330A1 Transmission of digital signals, with separate phase and amplitude modulation
12/07/2000WO2000074296A1 Method and apparatus for mapping bits to an information burst
12/07/2000WO2000074280A1 Highly integrated adsl linecard
12/07/2000WO2000074267A1 Receiver and equalizing method
12/07/2000WO2000074266A1 Receiving device and method of generating replica signal
12/07/2000WO2000074265A1 Communication device and communication method
12/07/2000WO2000074264A1 Method and apparatus for high data rate wireless communications over wavefield spaces
12/07/2000WO2000074252A1 Method and apparatus for receiving a signal
12/07/2000WO2000074249A1 Turbo code termination
12/07/2000WO2000074248A1 Serial-concatenated turbo codes
12/07/2000WO2000074230A1 Multiplier for multiplying complex signals
12/07/2000WO1999060988A3 Combination therapy for treatment of fiv infection
12/07/2000DE19858099C2 Demodulatorschaltung Demodulator
12/07/2000CA2376137A1 Highly integrated adsl linecard
12/07/2000CA2372550A1 A multiple access communication system using chaotic signals and method for generating and extracting chaotic signals
12/06/2000EP1058451A1 Digital AM demodulator, particularly for demodulating TV signals
12/06/2000EP1058435A1 Method and apparatus for inverse Fourier transform in pipelined architecture
12/06/2000EP1058434A2 Symbol synchronisation in multicarrier receivers
12/06/2000EP1058396A1 Very low IF receiver circuit and method
12/06/2000EP1058388A2 Direct digital downconverter and method for converting an analog signal to a digital signal
12/06/2000EP1058378A1 Multiplier for multiplying complex signals
12/06/2000EP1057282A1 Automatic frequency control loop multipath combiner for a rake receiver
12/06/2000EP1057278A1 System and method for demodulating global positioning system signals
12/06/2000EP1057273A1 Transmission circuit for a radio frequency signal
12/06/2000EP1057254A1 Wideband if image rejecting receiver
12/06/2000EP1057253A2 Down/up-conversion apparatus and method
12/06/2000EP1057252A1 Direct digital synthesis of precise, stable angle modulated rf signal
12/06/2000CN1276122A Digital modulator for angle and/or amplitude modulation
12/06/2000CN1276121A Data transmission using carrierless QAM
12/06/2000CN1275873A Method for equalizing service of Eb/1 ratio in multiple CDMA system
12/06/2000CN1275843A Zero code element position test method, equipment and receiver
12/06/2000CN1275842A Noise reducer
12/06/2000CN1275837A Receiver having self diagnostic mode
12/06/2000CN1275833A Lower frequency converter and demodulator adopting three-port wire connector
12/05/2000US6158041 System and method for I/Q trellis coded modulation
12/05/2000US6157686 Diversity apparatus with improved ability of reproducing carrier wave in synchronous detection
12/05/2000US6157683 Method and system for automatic invariancy compensation in digital communication receivers
12/05/2000US6157681 Transmitter system and method of operation therefor
12/05/2000US6157679 Method of adding encryption/encoding element to the modulation/demodulation process
12/05/2000US6157619 Code division multiple access (CDMA) communication system
12/05/2000US6157612 Fast fading packet diversity transmission method and system
12/05/2000US6157271 Rapid tuning, low distortion digital direct modulation phase locked loop and method therefor
12/05/2000US6157254 Double side band pilot technique for a control system that reduces distortion produced by electrical circuits
11/2000
11/30/2000WO2000072546A1 Signal transmission apparatus
11/30/2000WO2000072543A1 Reduction of peak to average power ratio in multicarrier transmission
11/30/2000WO2000072542A1 Differentiate and multiply based timing recovery in a quadrature demodulator
11/30/2000WO2000072541A1 Chaotic communication with modulation of non-reactive parameters
11/30/2000WO2000072497A1 A method for interactive demodulation and decoding for a system with coding and differential demodulation
11/30/2000WO2000072488A1 Digital subscriber's line transmitting method and device
11/30/2000WO2000072438A1 Linearisation and modulation device
11/30/2000WO2000072120A1 Digital synthesizer with coherent division
11/30/2000CA2374707A1 Digital synthesizer with coherent division
11/29/2000EP1056251A1 Multi-dimensional coding, and method and device for the code
11/29/2000EP1056250A2 Reduction of peak to average power ratio and of equaliser complexity in multicarrier transmission systems
11/29/2000EP1056249A2 Multicarrier receiver with noise detection and frequency control
11/29/2000EP1056248A1 Modulator using separate phase and amplitude stages
11/29/2000EP1056193A1 Down converter and demodulator using a three port junction
11/29/2000EP1055293A1 Radio receiver that digitizes a received signal at a plurality of digitization frequencies
11/29/2000EP1055290A2 Spread spectrum transceiver for use in wireless local area network and having multipath mitigation
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