Patents for H04L 25 - Baseband systems (55,083)
02/1996
02/07/1996CN1116381A Sampling phase synchronizing apparatus and bidirectional maximum likelihood sequence estimation scheme therefor
02/07/1996CN1116348A Adaptive digital audio encoding system
02/06/1996US5490209 Autobaud rate detection mechanism
02/06/1996US5490178 Power and time saving initial tracebacks
02/06/1996US5490175 Method and apparatus for detecting binary encoded data
02/06/1996US5490171 Single-port network node transceiver with powered-down protection
02/06/1996US5490169 Decision feedback equalizer method and apparatus
02/06/1996US5490121 Nonlinear equalizer for measurement while drilling telemetry system
02/01/1996WO1996003004A1 Coded modulation with shaping gain
02/01/1996WO1996002990A2 Method and device for synchronization of transmitter and receiver in a digital system
02/01/1996WO1996002983A1 Generalized direct update viterbi equalizer
02/01/1996DE4427007A1 Transmitting hardware pulses from source to receiver units along data bus or line
02/01/1996DE4426713A1 Verfahren zum Messen des Phasenjitters eines Datensignals A method for measuring the phase jitter of a data signal
02/01/1996DE4426712A1 Verfahren zum Erfassen der Nulldurchgänge eines Datensignals A method of detecting the zero crossings of a data signal
02/01/1996CA2195400A1 Generalized direct update viterbi equalizer
01/1996
01/31/1996EP0695065A2 Decoding circuit for bi-phase BPSK signal
01/31/1996EP0695064A1 Data recovery apparatus and method
01/31/1996EP0695060A1 Backplane bus for differential signals
01/31/1996EP0695042A2 Viterbi decoding method and decoder capable of eliminating phase indeterminacy
01/31/1996EP0694238A1 Method for increasing transmission rate
01/31/1996EP0694237A1 Data transfer system
01/31/1996CN1115923A Digital modulating/demodulation method and apparatus using same
01/30/1996US5488637 Decoding method and apparatus having optimum decoding paths
01/30/1996US5488636 Digital data detector
01/30/1996US5488635 Low complexity adaptive equalizer radio receiver employing reduced complexity branch metric calculation
01/30/1996US5488633 Intersymbol interference channel coding scheme
01/30/1996US5488628 Method and apparatus for transition encoding a logic signal
01/30/1996US5488610 Communication system
01/30/1996CA2154858A1 Clock recovery circuit employing delay-and-difference circuit and trajectory classification
01/30/1996CA2154848A1 Multilevel weighted transmission method and multilevel weighted transmission and reception apparatus
01/25/1996WO1996002100A1 Trellis coded modulation system for hdtv
01/25/1996WO1996002054A1 Signal modulation method, signal modulator, signal demodulation method and signal demodulator
01/25/1996DE4425624A1 Potential rise accelerating circuit for logic bus line
01/24/1996EP0693842A2 Hybrid line coding method and apparatus
01/24/1996EP0693750A2 Method and apparatus for cancelling in real-time DC offset in a received analog signal
01/24/1996EP0693246A1 Transceiver algorithms of antenna arrays
01/24/1996EP0693241A1 Reliability-controlled data reception in receivers for tdma mobile radio systems
01/24/1996EP0693240A1 Kalman filter for channel pulse response adaptation in receivers for tdma mobile radio systems
01/24/1996EP0693239A1 Linear interpolation method for channel pulse response adaptation in receivers for tdma mobile radio systems
01/24/1996CN1115591A Apparatus for and method of speech digitizing
01/24/1996CN1115545A Equalization apparatus with fast coefficient updating operation
01/24/1996CN1030808C Gain control circuit for radio transmitter
01/23/1996US5487089 Nyquist filter for digital modulation
01/23/1996US5487085 Transmission system with improved equalizer
01/23/1996US5486825 Convolutional encoders for modems which implement the "Cole code"
01/23/1996US5486777 Low power differential receiver input circuit
01/23/1996CA1337996C Optical communications network
01/17/1996EP0692896A1 QAM carrier recovery
01/17/1996EP0692894A2 Optimum signal decision apparatus for digital signal receiver
01/17/1996EP0692887A1 Optical communications device
01/17/1996EP0692883A1 Blind equalisation method, and its application to speech recognition
01/17/1996EP0692157A1 A demodulator for frequency shift keyed signals
01/17/1996CN1115147A Pre-frame-comb" as well as "pre-line-comb" partial-response filtering of bpsk buried in a TV signal
01/16/1996US5485488 Circuit and method for twisted pair current source driver
01/16/1996US5485300 Optical transmitter and power setting method in optical transmitters for use in optical networks
01/16/1996US5485113 Jitter-compensated sampling phase control apparatus
01/16/1996CA2153814A1 Received signal decision apparatus for digital modulated signal receiver
01/11/1996DE4425250C1 Potentially-separated data and energy transmission using 2-wire bus line
01/11/1996DE4423264A1 Opto-electronic data word transmission appts. e.g. as light barrier for transmission between vehicle and stationary transmitter
01/10/1996EP0691770A2 Maximum-likelihood sequence estimator with variable number of states
01/10/1996EP0691752A1 Transformerless hybrid circuit having direct powered line-side amplifiers
01/10/1996EP0691750A1 Digital modulating/demodulating method and apparatus using same
01/10/1996EP0691617A2 Directional asymmetric signal swing bus system for circuit module architecture
01/10/1996CN1114849A Transcoding and transdecoding unit, and method for adjusting the output thereof
01/10/1996CN1114802A Signal transmitting device suitable for fast signal transmission
01/09/1996US5483670 Trunked radio repeater system with control channel monitoring feature
01/09/1996US5483557 Channel equalisation in particular for fading channels
01/09/1996US5483553 Serial data transfer apparatus
01/09/1996US5483552 Adaptive equalizing apparatus for controlling the input signal level of quantized feedback
01/09/1996US5483530 System and method for communicating with digital and analog devices via a single digital interface
01/09/1996US5483184 Programmable CMOS bus and transmission line receiver
01/09/1996US5483110 Signal transmission method, signal transmission circuit and information processing system using same
01/04/1996WO1996000475A1 Maximum likelihood decoding and synchronous detecting method
01/04/1996WO1996000430A1 Communication system and method
01/03/1996EP0690652A2 Method for performing intelligent network services with an ISDN network terminator
01/03/1996EP0689747A1 Bit rate recognition
01/03/1996EP0689743A1 Bus transceiver with binary data transmission mode and ternary control transmission mode
01/02/1996USRE35137 High speed serial data link
01/02/1996US5481568 Data detecting apparatus using an over sampling and an interpolation means
01/02/1996US5481565 Method for identifying symbols
01/02/1996US5481564 Received data adjusting device
01/02/1996US5481555 System and method for error detection and reducing simultaneous switching noise
12/1995
12/28/1995WO1995035615A1 Synchronous detector and synchronizing method for digital communication receiver
12/28/1995CA2150490A1 Backplane bus for differential signals
12/27/1995EP0689311A2 Method and system for forward error correction using convolutional codes and a maximum likelihood decoding rule
12/27/1995EP0688482A1 A cellular/satellite communications system with improved frequency re-use
12/26/1995US5479450 Digital data demodulating apparatus
12/26/1995US5479440 Apparatus and method for impulsive noise cancellation
12/26/1995US5479419 Adaptive maximum likelihood sequence estimator
12/26/1995US5479123 Externally programmable integrated bus terminator for optimizing system bus performance
12/24/1995CA2152551A1 Communication system and method
12/21/1995WO1995034990A1 Synchronizing a packetized digital datastream to an output processor in a television signal processing system
12/21/1995WO1995034954A1 Signal receiving circuit and digital signal processing system
12/21/1995DE4430679C1 Verfahren und Vorrichtung zur Entzerrung von Signalpaaren Method and apparatus for equalization of signal pairs
12/20/1995EP0688110A2 Method and apparatus for adaptive dual decision equalization in multipath fading channels
12/20/1995EP0687398A1 Receive side pulse width controlled adaptive equalizer
12/20/1995CN1113637A Equalization apparatus with fast coefficient updating operation
12/14/1995WO1995034152A1 Vehicle communications network transceiver, ground translation circuit therefor
12/14/1995WO1995034130A1 High speed transport system
12/14/1995WO1995030289A3 A direct sequence cdma coherent uplink detector