Patents for H04L 25 - Baseband systems (55,083)
02/1998
02/05/1998WO1997048219A3 Transmitter for qam encoded data
02/04/1998EP0822688A1 Bus coupler with amplitude-controlled transmitter circuit
02/04/1998EP0822687A1 On-board power supply network
02/04/1998EP0822684A1 Remote supply system for elements connected to a network
02/04/1998EP0822673A1 MAP receiver for high-speed numerical transmissions through Rayleigh channels which are noisy and dispersive in time and frequency
02/04/1998EP0822662A2 Interface circuit
02/04/1998EP0821852A1 Sdh/sonet interface
02/04/1998CN1172566A Multiple access digital transmitter and receiver
02/04/1998CN1172565A Coupling arrangement in terminating circuit
02/04/1998CN1172562A Transmission system for non-linear transmission medium
02/03/1998US5715405 Transceiver circuit with transition detection
02/03/1998US5715252 High rate data transmission circuit
02/03/1998US5714904 High speed serial link for fully duplexed data communication
02/03/1998CA2036662C Communications transmission system including facilities for suppressing electromagnetic interference
01/1998
01/29/1998WO1998004075A1 Communication equipment and communication system
01/29/1998WO1998004074A1 Phase detector estimator
01/29/1998WO1998004073A2 Blind dfe and phase correction
01/29/1998WO1998004068A1 Apparatus and method for digital data transmission
01/29/1998WO1998004062A1 Method and circuit for data regeneration of a data stream
01/29/1998WO1998004041A1 Programmable dynamic line-termination circuit
01/29/1998CA2260839A1 Blind acquisition of digital communication signals
01/29/1998CA2232624A1 Transmission apparatus and transmission method for digital data
01/28/1998EP0821500A1 Multiple decoding
01/28/1998EP0821360A1 Data decoder
01/28/1998CN1171687A Transmission rate judging unit
01/28/1998CN1171686A Jidging method and precoding apparatus
01/27/1998US5713025 Asynchronous arbiter using multiple arbiter elements to enhance speed
01/27/1998US5712877 Pilot-symbol aided continuous phase modulation system
01/27/1998US5712875 Method for providing three signal states in a pair of signaling wires
01/27/1998US5712871 Method and apparatus for implementing a direct-sequence code division multiple access communication system with an M-ary pulse-position modulated spreading-sequence signal
01/27/1998US5712637 Slope, drift and offset compensation in zero-IF receivers
01/27/1998US5712585 Sysem for distributing clock signals
01/27/1998US5712475 Light receiving circuit with variable threshold circuit
01/27/1998CA2081923C Method and arrangement of estimating data sequences transmitted using viterbi algorithm
01/21/1998EP0820172A2 Data transmission by multicarrier modulation using a higher power for reference symbols
01/21/1998EP0820168A2 Multimode modem, and protocols therefor
01/21/1998CN1171176A Method and apparatus for channel estimation
01/20/1998US5710890 Method and device for the transmission of data on a bus
01/20/1998US5710795 Received signal decision apparatus for digital modulated signal receiver
01/20/1998US5710793 Error signal quantization method and hardware for mixed blind and decision directed equalization
01/20/1998US5710792 Adaptive equalizer
01/20/1998US5710790 Communication arrangement with improved echo and noise suppression in a channel containing quantization
01/20/1998US5710784 Multirate serial viterbi decoder for code division multiple access system applications
01/20/1998US5710757 Electronic device for processing multiple rate wireless information
01/20/1998US5709598 Abrasive tape and method of producing the same
01/15/1998WO1998001981A1 Method and apparatus for compensating for a varying d.c. offset in a sampled signal
01/15/1998WO1998001980A1 Bus coupling with amplitude-controlled transmission circuit
01/15/1998WO1998001966A1 Semiconductor integrated circuit for communication and battery saving method for the same
01/15/1998WO1998001962A1 Low-noise, high rms switching power supply for broadband signal distribution system
01/15/1998WO1998001960A1 Automatic adaptive filtering according to frequency modulation rate
01/15/1998WO1998001957A2 Transmission system and receiver with improved detection, and improved detection method
01/14/1998EP0818941A2 Communication links for transmission of data in fixed size packets
01/14/1998EP0818877A2 Offset compensation circuit
01/14/1998EP0818099A1 Terminator with voltage regulator
01/14/1998EP0818083A1 Method of generating a.c. information for a bus system, and transmission unit for carrying out the method
01/13/1998US5708971 Two-way paging system and apparatus
01/13/1998US5708703 Wide range equalizer with line length detection
01/13/1998US5708683 Symbol rate conversion method for CDPD demodulator
01/08/1998DE19728757A1 Signal processing arrangement
01/08/1998DE19726045A1 Battery-saving radio pager for reception of variable encoding formats
01/07/1998EP0817441A2 Integrated circuit chip with adaptive input-output port
01/07/1998EP0817440A2 Transmission rate judging unit
01/07/1998EP0817382A1 System for switching between stand by and wake up for a data processing unit and an analog switch
01/07/1998EP0817379A2 Apparatus and method for digital data recovery
01/07/1998EP0815692A2 A two-way paging system and apparatus
01/07/1998EP0549672B1 Sequence synchronisation
01/07/1998EP0511373B1 Dc-free line code and bit and frame synchronization for arbitrary data transmission
01/06/1998US5706402 Blind signal processing system employing information maximization to recover unknown signals through unsupervised minimization of output redundancy
01/06/1998US5706289 Data module with variable data word length for a serial multiplex data system
01/06/1998US5706285 Network interfacing method and a network interface for a digital transmission network
01/06/1998US5706221 Mehtod and apparatus for recovering digital data from baseband analog signal
01/06/1998US5706115 Optical wireless communication method and apparatus
01/06/1998US5706057 Phase detector in a carrier recovery network for a vestigial sideband signal
01/06/1998US5705947 Clock generator
01/06/1998US5705922 Terminator with voltage regulator
12/1997
12/31/1997WO1997050247A1 Data transmission
12/31/1997WO1997050219A1 Data transmitting method, data transmitting system, transmitter, and receiver
12/31/1997WO1997050179A1 M=10 (2,10), d=3.75 runlength limited code for multi-level data
12/31/1997CN1169073A Receiver
12/30/1997US5703914 Clock recovery circuit employing delay-and-difference circuit and pulse-sequence detection
12/30/1997US5703904 Impulse noise effect reduction
12/30/1997US5703903 Method and apparatus for adaptive filtering in a high interference environment
12/30/1997US5703882 Cyclic line coding apparatus for error detection and frame recovery
12/30/1997US5703506 Signal processing method
12/29/1997EP0814587A2 Pulse shaping for multicarrier systems
12/29/1997EP0813779A1 High-speed data transmission in mobile communication networks
12/29/1997EP0813768A1 Slope, drift and offset compensation in zero-if receivers
12/24/1997WO1997049249A1 Data reception system
12/24/1997WO1997049206A2 Digital data transmission system with different compression rates, in particular for digital radio broadcasting
12/24/1997WO1997049029A1 Optical analog signal transmission system
12/24/1997CN1168600A Multiple mode trellis decoder for digital signal processing system
12/24/1997CN1168576A Adaptive equalizer for controlling step size in proportion to estimated delay of received signals
12/23/1997US5701333 Diversity receiver in which reception characteristics can be improved
12/23/1997US5701331 Differential signal receiver
12/23/1997CA2065853C Asynchronous signal extracting circuit
12/23/1997CA2052589C Rate conversion apparatus
12/18/1997WO1997048219A2 Transmitter for qam encoded data
12/18/1997WO1997048218A1 Msle decoder with neural network
12/18/1997WO1997048197A3 Communication system with multicarrier telephony transport
12/18/1997WO1997048197A2 Communication system with multicarrier telephony transport