H04L 27 - Modulated-carrier systems

Patents for H04L 27 - Modulated-carrier systems (89,721)
12/1992
12/30/1992	CN1067539A Method and apparatus for providing carrier frequency offset compensation in tdma communication system
12/29/1992	WO1993000747A1 Automatic frequency control by an adaptive filter
12/29/1992	US5175882 Demodulation control arrangement in satelitte communications system using "scpc-dama"
12/29/1992	US5175617 Telephone line picture transmission
12/29/1992	US5175514 Digital modulator and baseband signal generator for digital modulator
12/29/1992	US5175507 Method of and device for demodulating biphase modulated signal
12/28/1992	WO1993000770A1 Method and device for modulating and demodulating transmission subchannels for a compatible television system
12/28/1992	CA2090722A1 Method and device for modulating and demodulating transmission sub-channels for a compatible television system
12/28/1992	CA2068964A1 Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver
12/23/1992	EP0519891A2 PSK demodulator for multipath fading channels
12/23/1992	EP0286665B1 Device and method for the transmission or storage of information optimising the use of the band-pass
12/23/1992	CN1067344A Apparatus and method for equalizing corrupted signal in receiver
12/22/1992	US5173926 Convolutionally-encoded quadrature frequency-modulation system
12/22/1992	US5173925 Demodulating system capable of accurately equalizing received signals using error correction codes
12/22/1992	US5173924 Method for equalizing received burst signal
12/22/1992	US5173663 Demodulation circuit enabling independent recovery of the carrier and sampling timing
12/15/1992	US5172071 Linearized output control of a nonlinear amplifier
12/15/1992	US5172070 Apparatus for digitally demodulating a narrow band modulated signal
12/10/1992	WO1992022162A1 Qam system in which the constellation is modified in accordance with channel quality
12/09/1992	EP0517533A2 Integrate and dump phase demodulator
12/09/1992	EP0516741A1 Hybrid analog/digital signal processing
12/08/1992	US5170415 Burst demodulator for establishing carrier and clock timing from a sequence of alternating symbols
12/08/1992	US5170413 Control strategy for reuse system assignments and handoff
12/08/1992	US5170131 Demodulator for demodulating digital signal modulated by minimum shift keying and method therefor
12/08/1992	US5170046 Data transfer system
12/08/1992	CA1311281C2 Modem with improved digital signal processor
12/05/1992	CA2069578A1 Digital demodulator
12/02/1992	EP0516484A2 MSK-modulator
12/01/1992	WO1992022155A1 Tdma communication using carrier frequency offset compensation
12/01/1992	US5168509 Quadrature amplitude modulation communication system with transparent error correction
12/01/1992	US5168507 For a wireless digital telephone network
12/01/1992	US5168275 Method and apparatus for decoding two frequency (f/2f) data signals
12/01/1992	CA2067461A1 Automatic equalizer for a data transmission channel
11/1992
11/26/1992	WO1992021196A1 Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system
11/26/1992	WO1992021195A1 Dual mode transmitter and receiver
11/26/1992	WO1992021194A1 Power line communication while avoiding determinable interference harmonics
11/26/1992	WO1992021086A1 Binary data error correction using hint signal
11/25/1992	EP0514629A2 Method for demodulation and synchronisation of digitally modulated signals
11/24/1992	US5166924 Echo cancellation in multi-frequency differentially encoded digital communications
11/22/1992	CA2065648A1 Digital discriminator for pulse shaped pi/4 shifted differentially encoded quadrature phase shift keying
11/22/1992	CA2065647A1 Tangental type differential detector for pulse shaped pi/4 shifted differentially encoded quadrature phase shift keying
11/22/1992	CA2065638A1 Sample timing and carrier frequency estimation circuit for sine-cosine detectors
11/19/1992	EP0513313A1 Method for resetting the local oscillators of a receiver and device for implementing such method.
11/18/1992	CN1066360A Automatic frequency selection in bi-directional cable televison system
11/17/1992	US5164963 Communicating television information
11/17/1992	US5164959 Use with a spread spectrum communications system
11/17/1992	US5164719 Radio system for data transmission with passive terminal station
11/17/1992	CA1310426C2 Autocorrelating 2400 bps handshake sequence detector
11/17/1992	CA1310371C Mechanism for deriving accurate frequency reference for satellite communications burst demodulator
11/14/1992	CA2102914A1 Dual mode transmitter and receiver
11/12/1992	WO1992020173A1 Receiver with signal classifier
11/12/1992	WO1992020162A2 Method and apparatus for resolving phase ambiguities in trellis coded modulated data
11/10/1992	US5163159 Dual mode automatic frequency control
11/10/1992	US5162812 Technique for achieving the full coding gain of encoded digital signals
11/10/1992	CA1310079C Saw device tapped delay line and apparatus using same
11/05/1992	DE4114274A1 Verfahren und anordnung zur differentiellen modulation von signalen in einem mehrkanal-uebertragungssystem Method and arrangement for differential modulation of signals in a multi-channel transmission system
11/04/1992	EP0511514A2 Data conversion circuit
11/04/1992	EP0511295A1 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions
11/03/1992	WO1992020179A1 Process and arrangement for the differential modulation of signals in a multi-channel transmission system
11/03/1992	CA2109211A1 Process and arrangement for the differential modulation of signals in a multi-channel transmission system
10/1992
10/29/1992	WO1992019061A1 Superframes
10/29/1992	WO1992019055A1 Data bit to constellation symbol mapper
10/28/1992	EP0511095A1 Coding and decoding method and apparatus for a digital signal
10/28/1992	EP0510756A2 Sample tuning recovery for receivers using Viterbi processing
10/28/1992	CN1065762A Apparatus and method of dc offset correction for receiver
10/27/1992	US5159705 Frequency synthesizer circuit
10/27/1992	US5159610 Trellis precoding for modulation systems
10/27/1992	US5159607 Rf signal synthesis
10/27/1992	US5159282 Demodulation apparatus incorporating adaptive equalizer for digital communication
10/25/1992	WO1992020146A1 Adaptive phase control for a power amplifier predistorter
10/22/1992	DE4112860A1 Multi-channel transmission system receiver including digital frequency control - obtains mixer frequency shift correction from production of subchannel output and conjugated complex hard decision signal
10/21/1992	EP0509495A2 Intermediate frequency filter
10/20/1992	US5157698 Method for clock pulse synchronization
10/20/1992	US5157697 Receiver employing correlation technique for canceling cross-talk between in-phase and quadrature channels prior to decoding
10/20/1992	US5157694 Coherent psk demodulator using bit error rate and s/n ratio to establish synchronization
10/20/1992	US5157693 Digital modulation circuit
10/20/1992	US5157358 High speed frequency agile FSK modulator
10/20/1992	US5157344 Digital quadrature phase detector for angle modulated signals
10/20/1992	US5157343 Electronic arrangement for receiving a modulated carrier signal
10/14/1992	EP0508401A2 Direct-conversion FSK receiver with orthogonal demodulation
10/14/1992	EP0489081A4 Gain/phase compensation for linear amplifier feedback loop
10/13/1992	US5155590 System for data channel level control
10/13/1992	US5155454 MSK modulator using a VCO to produce MSK signals
10/13/1992	US5155446 Digital FSK demodulator
10/09/1992	WO1992017967A1 Multi-level symbol synchronizer
10/07/1992	EP0507522A2 Data communication apparatus
10/07/1992	EP0507443A2 Data receiver for portable telephone set with high frame synchronisation probability
10/07/1992	EP0507139A2 Method for adjacent channel rejection at reception of FM-modulated signals
10/07/1992	EP0489880A4 Maximal ratio diversity combining technique
10/06/1992	US5153536 Suppressed carrier modulator formed from two partial modulators each including a phase delay path
10/06/1992	US5153527 Demodulation apparatus having reception state evaluation
10/06/1992	CA1308450C Coherent demodulation method for a digitally modulated signal having a continuous phase and a constant envelope
10/02/1992	WO1992017969A1 Digital modulation circuit
10/02/1992	WO1992017944A1 Apparatus and method of automatic gain control in a receiver
09/1992
09/30/1992	EP0506535A1 Method and system for processing of pre-echos of a frequency transform coded digital audio signal
09/30/1992	EP0506400A2 Signal transmission system
09/30/1992	EP0506185A1 Multistage decoder
09/30/1992	EP0505867A2 Method for adjacent channel rejection at reception of FM modulated transmitters
09/30/1992	EP0505771A1 Communication satellite system having an increased power output density per unit of bandwidth
09/30/1992	CN1018505B Interactive television and data transmission system

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