Patents for H04L 25 - Baseband systems (55,083)
06/1992
06/02/1992US5119403 Communications device for transmitting
06/02/1992US5119402 Method and apparatus for transmission of local area network signals over unshielded twisted pairs
06/02/1992US5119401 Decision feedback equalizer including forward part whose signal reference point is shiftable depending on channel response
06/02/1992US5119400 Digital transmission system employing a viterbi-like equalizer
06/02/1992US5119380 Zero string error detection circuit
06/02/1992US5119371 Automotive multipath transmission system with power always supplied to at least two transmission unit
06/02/1992US5119326 Waveshaping transversal filter and method utilizing the same for data transmission over coaxial cable
05/1992
05/29/1992WO1992009162A1 Dc-free line code and bit and frame synchronization for arbitrary data transmission
05/27/1992EP0487428A1 Circuit arrangement for the transmission of synchronous information over an asynchronous network, in particular an asynchronous transfer mode network
05/27/1992EP0487029A1 An adaptive filter and a method of preventing divergent behavior of the adaptive filter
05/26/1992US5117429 Packet switch for a transfer of data in asynchronous mode in a digital transmission network
05/26/1992US5117291 Technique for adjusting signal dispersion cancellation apparatus in communications systems
05/26/1992US5117135 Frequency and phase detection circuit in NRZ bit synchronous system
05/26/1992CA1301933C Binary data communication system
05/26/1992CA1301931C Decoding method for t1 line format for ccitt 32k bit per second adpcm clear channel transmission and 64 kbps clear channel transmission
05/20/1992EP0486474A2 Method for adapting a transversal equalizer, without carrier synchronism
05/20/1992EP0486072A2 Interface for serial data communications link
05/20/1992EP0486049A2 Decision feedback equalizer
05/19/1992US5115450 High speed digital to analog to digital communication system
05/19/1992CA1301252C Optical communications network
05/19/1992CA1301251C Bit synchronisation for optical networks
05/13/1992EP0485250A1 Electronic data display device
05/13/1992EP0485102A2 Bus driver circuit
05/13/1992EP0484946A2 Decoder for SB6B code
05/13/1992EP0326614B1 Synchronous signal decoder
05/12/1992US5113186 Apparatus for converting an alternate mark inversion signal to unipolar signals with frequency dependent amplification
05/12/1992US5113159 Communications transmission system including facilities for suppressing electromagnetic interference
05/12/1992CA1300736C Hospital digital data transfer system
05/07/1992DE4141387A1 Data transmission interface for control network e.g. in motor vehicle - uses optical transmission path defined by inner part of mechanical body component
05/07/1992DE4135495A1 Equaliser for digital communication signals - uses transversal filter to adapt receiver for transmitted signals without use of test signal sequence
05/06/1992EP0483439A1 Self-training adaptive equalization method and apparatus
05/06/1992EP0483435A1 Equalization system and method for equalizing a base-band telecommunication line
05/06/1992CN1016556B Ensemble modem structure for imperfect transmission media
05/06/1992CN1016553B Subscriber unit for wireless digital subscriber communication system
05/05/1992US5111488 Doubling/dividing device for a series bit flow
05/05/1992US5111484 Adaptive distortion canceller
05/05/1992US5111481 Dual mode LMS channel equalizer
05/05/1992US5111480 Method for equalization of the pulse widths of a digital signal
05/05/1992US5111298 Method and apparatus for communication channel identification and signal restoration
05/05/1992US5111080 Complementary signal transmission circuit with impedance matching circuitry
05/01/1992WO1992008304A1 Apparatus for generating a ds-3 signal from the data component of an sts-1 payload signal
05/01/1992WO1992008298A1 Channel equalisation in particular for fading channels
04/1992
04/30/1992WO1992007435A1 Digital audio broadcasting system
04/29/1992EP0482927A2 Digital radio receiver
04/29/1992EP0482392A2 Circuit arrangement for providing an output current for a data driver
04/29/1992EP0482336A1 Switchable transceiver interface device
04/29/1992EP0305482B1 Low-noise transmission line termination circuitry
04/28/1992US5109493 Structure and method for tying down an unused multi-user bus
04/28/1992US5109391 Unbalanced transmitter and receiver
04/22/1992EP0481544A2 Waveshaping circuit
04/22/1992CN1016395B Active signalling transmitter control
04/21/1992US5107263 NRZ to CMI (II) encoding circuit
04/16/1992WO1992006454A1 Method and apparatus for price display
04/15/1992EP0480598A1 Repeater method and apparatus
04/15/1992EP0480597A2 Phase lock loop
04/15/1992EP0480596A2 Circuit and method for determining the duration of the time interval between two signals
04/15/1992EP0480566A2 Bit stuffing apparatus
04/15/1992EP0480507A2 Method and apparatus for communication channel identification and signal restoration by sending a test signal used for channel impulse response calculation
04/15/1992EP0480042A1 Device for evaluating signal transmission performance of optical communication equipment
04/14/1992US5105447 Demodulated data recognition and decision device
04/14/1992US5105445 Predistortion arrangement for a digital transmission system
04/14/1992US5105441 Device for potential-free transmission of data
04/14/1992US5105440 Method and apparatus for adaptive equalization of pulse signals
04/08/1992EP0479305A2 Rate conversion apparatus
04/08/1992EP0478706A1 Self-tuning direct coupled data limiter of a battery saver type paging receiver
04/07/1992US5103467 Asynchronous voice reconstruction for a digital communication system
04/02/1992WO1992005647A1 Sequence synchronisation
04/02/1992WO1992005511A1 Token ring equalizer
04/02/1992WO1992001346A3 Multimedia high speed network
04/01/1992EP0478008A2 Method and system for monitoring the data rates of asynchronous time division communications
03/1992
03/31/1992US5101403 Apparatus for processing signalling messages in an asynchronous time division telecommunications network
03/31/1992US5101198 Method and device for the transmission of data between stations of a communications network, in particular for motor vehicles
03/31/1992US5101175 Power control method for a voltage controlled power amplifier and circuitry used in the method
03/31/1992CA1298362C Method and arrangement for setting an amplitude equalization characteristic on an equalizer for use in a modem
03/31/1992CA1298355C Linear feedback shift registers for data scrambling
03/25/1992EP0477131A2 Method and apparatus for sample rate conversion
03/25/1992EP0476968A2 Clock recovery circuit
03/25/1992EP0476125A1 Treillis precoding for fractional bits/baud
03/25/1992EP0475984A1 Process for equalizing signals by means of test sequences.
03/24/1992US5099500 Symbol detection and error correction coding in a local area network
03/24/1992US5099497 Polarity detector for subscriber lines
03/24/1992US5099496 Adaptive equalizers
03/24/1992US5099349 Optical transmission line system
03/24/1992CA1297993C Backplane bus
03/19/1992DE4029399A1 Opto-coupler for digital signal transmission - uses control stage for counter-phase control of parallel elements
03/18/1992EP0475276A2 Pulse stuffing system
03/18/1992EP0474908A1 Method of evaluating information bits contained in biphase coded pulse sequences
03/17/1992US5097488 Transmission apparatus and method
03/17/1992US5097486 Pipelined decision feedback decoder
03/17/1992US5097482 Method and apparatus of decision feedback equalization for multipath digital communication
03/17/1992US5097353 Optical repeater having phase inversion circuit
03/17/1992US5097160 Method of transmitting pulse signal and apparatus therefor
03/17/1992US5097143 Bipolar to unipolar converter with automatic gain control
03/11/1992EP0474615A2 D.C. offset compensation in a radio receiver
03/11/1992EP0474367A2 Driver circuit
03/11/1992EP0474241A2 HDB3 Code violation detector
03/11/1992EP0474185A1 Digital data decoder, coded following a bipolar mark inversion code
03/11/1992EP0473872A2 Circuit arrangement for the transmission of serial data between a sensor and a control device
03/10/1992US5095498 Bit synchronizer
03/10/1992US5095497 Technique for achieving the full coding gain of encoded digital signals