Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 25 - Baseband systems
Patents for H04L 25 - Baseband systems (55,083)
12/1998
12/16/1998EP0883950A2 Transition-controlled digital encoding and signal transmission system
12/16/1998EP0883949A1 Channel estimation arrangement
12/16/1998EP0883841A1 System and method for waveform synthesis
12/16/1998EP0883840A1 Method for continuous waveform synthesis
12/16/1998EP0771422B1 Process for measuring phase jitter of a data signal
12/16/1998EP0753225B1 Apparatus and method for integrating downstream data transfer over a cable television channel with upstream data carried by other media
12/16/1998EP0693240B1 Kalman filter for channel pulse response adaptation in receivers for tdma mobile radio systems
12/15/1998US5850450 Method and apparatus for encryption key creation
12/15/1998US5850403 Process of selectively protecting information bits against transmission errors
12/15/1998US5850353 Dynamic multiple comparison digital device particularly for the real time monitoring of a plurality of signals
12/15/1998US5850154 Data transmission method and data transmission circuit
12/10/1998WO1998056146A1 Time variable adaptation method and data receiver
12/10/1998WO1998056119A2 Non-coherent sequence estimation receiver for digital modulations
12/10/1998WO1998039871A3 Adaptation of pre-equalisers
12/10/1998CA2292534A1 Method and arrangement for receiving data
12/09/1998EP0883267A2 Line driver
12/09/1998EP0883260A2 Error correction in a digital transmission system
12/08/1998US5848105 GMSK signal processors for improved communications capacity and quality
12/08/1998US5848101 Circuits systems and methods for reducing power loss during transfer of data across an I/O bus
12/08/1998US5848060 Cellular/satellite communications system with improved frequency re-use
12/08/1998US5848041 Method and apparatus for recording digital signals medium for recording digital signals and method
12/08/1998US5847891 PRML regenerating apparatus
12/05/1998CA2235178A1 Error correction in a digital transmission system
12/03/1998WO1998054876A1 Method and device for continuous packet-like data transmission
12/03/1998WO1998054874A1 Device and method for clock recovery and regeneration of data
12/03/1998WO1998039888A3 A method and apparatus for shaping the signal spectrum of a transmit signal of a modem
12/03/1998DE19722433A1 Verfahren und Vorrichtung zur Übertragung eines kontinuierlichen Datenstroms in paketierter Form Method and apparatus for transmitting a continuous stream of data in packetized form
12/03/1998DE19722302A1 Vorrichtung und Verfahren zur Taktrückgewinnung und Datenregeneration Apparatus and method for clock recovery and data recovery
12/03/1998DE19722168A1 Digital data transmission system for channel with limited bandwidth
12/02/1998EP0881803A2 Weighted interleaving for correlated channel coding
12/02/1998EP0881796A2 Radio receiver performing simultaneous equalisation and error correction decoding
12/02/1998EP0881778A2 Ternary signal input circuit
12/02/1998EP0881773A1 Frequency difference detector for use with an NRZ signal
12/02/1998EP0881639A2 Automatic equalization system
12/02/1998EP0880868A2 Method and apparatus for compressing and transmitting high speed data
12/02/1998EP0880844A2 Current distribution circuit having an additional parallel dc-current sinking branch
12/02/1998EP0880843A1 Data receiving method for receiving data through predetermined clear zones of a powerline
12/02/1998EP0880838A1 Method of communicating according to a trellis code chosen from a fixed set of baseband signal points
12/02/1998EP0806085B1 Bidirectional transmission line driver/receiver
12/02/1998EP0544875B1 Apparatus for adjusting signal points, equalizer gains and the like
12/02/1998CN1200603A Automatic equalization system
12/01/1998US5844989 Data scrambling method, data scrambling apparatus, data descrambling method, and data descrambling apparatus
12/01/1998US5844946 Soft-decision receiver and decoder for digital communication
12/01/1998US5844942 Pulse position modulation communications protocol
12/01/1998US5844741 System for reproducing high-density magnetic record data with viterbi detector for generating quadripartite reproduction data
12/01/1998US5844510 System and method for extracting a data signal encoded onto first and second binary signals
12/01/1998US5844507 Rate 16/17 ENDEC with independent high/low byte decoding
12/01/1998US5843799 Circuit module redundancy architecture process
11/1998
11/26/1998WO1998053454A1 Digital modulation and digital demodulation
11/26/1998WO1998038774A3 Line driver with adaptive output impedance
11/26/1998WO1998038773A3 Line driver with adaptive output impedance
11/25/1998EP0880253A2 Blind training of a decision feedback equalizer
11/25/1998EP0880233A1 Extended-trinary coded decimal apparatus and method
11/25/1998EP0879522A1 Coherent modulation of cpm signals
11/25/1998EP0788696B1 Network interfacing method and a network interface for a digital transmission network
11/25/1998CN1200214A Method of synchronizing a digital signal receiver
11/25/1998CN1200213A Wireless powered communication device using power signal sampling and method
11/25/1998CN1199967A Synchronous circuit controller for controlling data transmission between asynchronous circuits
11/24/1998US5841986 Method for the transmission of binary asynchronous data via a synchronous channel
11/24/1998US5841821 Bi-directional low pass filtering method and apparatus
11/24/1998US5841819 In a system for processing a trellis-encoded video input signal
11/24/1998US5841816 Diversity Pi/4-DQPSK demodulation
11/24/1998US5841812 NMOS pass transistor digital signal processor for a PRML system
11/24/1998US5841809 Access line termination unit
11/24/1998US5841602 PRML regenerating apparatus
11/24/1998US5841478 Code sequence detection in a trellis decoder
11/24/1998CA2136403C Cable crosstalk measurement system
11/19/1998WO1998052331A1 Data transmission method and game system constructed by using the method
11/19/1998WO1998052330A1 Apparatus and method for noise-predictive maximum likelihood detection
11/19/1998WO1998052329A1 Equalising and decoding device for a frequency-selective digital transmission channel
11/18/1998EP0878933A1 Receiving apparatus and methods
11/18/1998EP0878926A2 Optical receiver
11/18/1998EP0878921A1 Transmission line presuming circuit and modem using the same
11/18/1998EP0878786A1 Circuit arrangement having a sensor and an evaluation circuit
11/18/1998EP0878081A2 Digital receiver with fractionally-spaced self-recovery adaptive equalizer
11/18/1998EP0771501B1 Data signal zero crossing detection process
11/18/1998CN1199525A Apparatus and method for digital data transmission
11/18/1998CN1040824C Digital modulating/demodulation method and apparatus using same
11/17/1998US5838933 Control circuit and method for a first-in first-out data pipeline
11/17/1998US5838749 Method and apparatus for extracting an embedded clock from a digital data signal
11/17/1998US5838748 Communication interface between computer and synchronous digital telephone line employing asynchronous data transmission format and having enhanced reliability
11/17/1998US5838747 Asynchronous serial data transmission apparatus with edge interrupt operation and timer interrupt operation
11/17/1998US5838739 Channel estimator circuitry, and associated method, for a digital communication system
11/17/1998US5838738 Coding to improve timing recovery in a sampled amplitude read channel
11/17/1998US5838735 Method and apparatus for compensating for a varying d.c. offset in a sampled signal
11/17/1998US5838731 Burst-mode digital receiver
11/17/1998US5838729 Multiple mode trellis decoder for a digital signal processing system
11/17/1998US5838726 Method of automatically adjusting the output voltage in a transmission system
11/17/1998US5838724 Spectral and power shaping mapper for high data rate signalling
11/17/1998US5838722 Monolithic transceiver including feedback control
11/17/1998US5838667 For use in a subscriber line based communication system
11/17/1998US5838475 Optical regenerator and an optical transmission system
11/17/1998CA2176478C Optimization of transmitted pulse shape and receiver timing in digital system
11/17/1998CA2133236C Method and apparatus for channel equalization
11/15/1998CA2237460A1 Adaptive multiple sub-band common-mode rfi suppression
11/15/1998CA2205686A1 Adaptive multiple sub-band common-mode rfi suppression
11/12/1998WO1998051120A2 Apparatus for an improved isdn terminal adapter and methods for use therein
11/12/1998WO1998051046A1 Active termination circuit and method therefor
11/12/1998WO1998028887A3 Transmission using the eigenmodes of a multiconductor link
11/12/1998DE19820643A1 Clock pulse transmission circuit e.g. for IC tester
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