Patents
Patents for H04L 1 - Arrangements for detecting or preventing errors in the information received (103,402)
02/1999
02/04/1999DE19728841A1 Data transmission monitoring method for car ECU and injector pump control unit
02/04/1999DE19727516A1 Method for determining internal noise in digital circuit
02/04/1999CA2297700A1 Methods and apparatus for canceling adjacent channel signals in digital communications systems
02/03/1999EP0895405A1 Method for controlling modem
02/03/1999EP0895372A2 Circuit for measuring the bit error rate
02/03/1999EP0894409A1 Detection of speech channel back-looping
02/03/1999EP0894367A1 Method and apparatus for interference rejection with different beams, polarizations, and phase references
02/03/1999CN1207223A High-penetration transmission method for a radiocommunication system
02/03/1999CN1207220A Robust method and apparatus enabling multi-mode wireless optical communication
02/02/1999US5867791 Up link macro diversity method and apparatus in a digital mobile radio communication system
02/02/1999US5867663 Method and system for controlling network service parameters in a cell based communications network
02/02/1999US5867531 Maximum likelihood sequence estimator and maximum likelihood sequence estimating method
02/02/1999US5867527 Method of searching for a bursty signal
02/02/1999US5867510 Method of and apparatus for decoding and processing messages
02/02/1999US5867509 Communication control apparatus in ATM communication
02/02/1999US5867508 Method and device for the correction of errors in the transmission of series of information items
02/02/1999US5867503 Digital sound broadcasting receiver and automatic phase controlling method therefor
02/02/1999US5867478 Synchronous coherent orthogonal frequency division multiplexing system, method, software and device
02/02/1999US5867041 Clock signal testing apparatus for use in a synchronous transmission system
01/1999
01/28/1999WO1999004539A2 Communication method and system
01/28/1999WO1999004527A2 Reconstruction of a sent data frame
01/28/1999WO1999004522A1 Method and apparatus for adaptive loss-less compression of cell/packet headers
01/28/1999WO1999004521A2 A method and apparatus for segmentation and reassembly of packets/cells over satellite/wireless networks
01/28/1999WO1999004519A2 Combined array processing and space-time coding
01/28/1999WO1999004516A1 Frameless reed-solomon coding system and method
01/28/1999WO1999004515A1 Method and apparatus for fast acquisition and synchronization of transmission frames
01/28/1999WO1999004509A1 Method and apparatus for minimizing delay variance via time divided transmissions
01/28/1999WO1999004508A1 Multicarrier demux/demod (mcdd) wireless network architecture
01/28/1999WO1999004507A2 Method and system for controlling the use of satellite transmission capacity in terrestrial networks
01/28/1999WO1999004340A1 A frame format and frame assembling/disassembling method for the frame format
01/28/1999WO1999004339A2 Method and apparatus for improving asynchronous transfer mode operation over noisy, high speed wireless links
01/28/1999WO1999004338A1 Method and apparatus for adaptive control of forward error correction codes
01/28/1999WO1998049851A3 Method for voice quality improvement in a wireless transmission system
01/28/1999WO1998047256A3 Device for and method of transmission of digital signals, in particular in dect-type systems
01/28/1999DE19757636A1 Data transmission method for PAM communication system
01/28/1999DE19754903C1 Replacement circuit for several similar function modules
01/28/1999DE19731261A1 Data packet transmission method and protocol
01/28/1999CA2296423A1 Communication method and system
01/28/1999CA2290967A1 Method and system for controlling the use of satellite transmission capacity in terrestrial networks
01/27/1999EP0893017A1 Bundled protection switching in a wide area network
01/27/1999EP0791256B1 Process for transmitting messages from a secondary control system to a primary control system
01/27/1999EP0763225A4 Method and system for remote procedure call via an unreliable communication channel using multiple retransmission timers
01/27/1999CN1206514A Apparatus and method for demodulating modulated signal
01/27/1999CN1206318A Channel allocation method and circuit for testing trunk line in radio communication system
01/27/1999CN1206271A Radio communication apparatus
01/27/1999CN1206153A Method and apparatus for reducing jitter or wander on internet working between ATM network and PDH network
01/26/1999US5864762 Operating a trunked communication system in transmission and message trunked modes
01/26/1999US5864677 System for preserving sequential ordering and supporting nonidempotent commands in a ring network with busy nodes
01/26/1999US5864589 Device for making decisions by estimating the viterbi algorithm in a mobile radio system
01/26/1999US5864549 Method for the overlayed operation of two radio communication systems with reduced intersystem interference, and a radio communication system for overlayed use
01/26/1999US5864547 Method and system for controlling uplink power in a high data rate satellite communication system employing on-board demodulation and remodulation
01/26/1999US5864543 Transmit/receive compensation in a time division duplex system
01/26/1999US5864442 Reproducing apparatus capable of controlling equalization characteristics
01/26/1999CA2149679C Transmission power control method and apparatus for mobile communications using a cdma (code division multiple access) system
01/26/1999CA2095054C Error recovery in an information communication system
01/26/1999CA2083304C Equalization and decoding for digital communication channel
01/26/1999CA2069346C Atm cell error processing system
01/21/1999WO1999003222A1 Apparatus and method for supporting the use of multiple modulation systems simultaneously on terrestrial distribution networks
01/21/1999WO1999003221A2 Device and method for determining characteristics of a digital subscriber line
01/21/1999WO1998046039A3 Wireless communications systems and methods utilizing data link reset
01/21/1999DE19751258C1 Continuous payload measurement in ATM data communications network
01/21/1999DE19730159A1 Kommunikationsverfahren und System A communication method and system
01/21/1999CA2295673A1 Apparatus and method for supporting the use of multiple modulation systems simultaneously on terrestrial distribution networks
01/20/1999EP0892579A1 Procedure for transmitting and receiving ATM cells with variable coding rate and corresponding digital signal
01/20/1999EP0892518A2 Methods and apparatus for packetizing data for transmission through an erasure broadcast channel
01/20/1999EP0892517A2 Error correction coding for short sequences
01/20/1999EP0892509A2 Communication method, transmitter, receiver, and cellular radio communication system
01/20/1999EP0891664A1 Packet data transmission with clash subtraction
01/20/1999EP0891662A1 Method and apparatus for data recovery in arq systems
01/20/1999EP0891656A1 Data block convolutional coding device and method, and corresponding decoding method and device
01/20/1999CN1205603A Dynamic configuration of radio link protocol in telecommunications system
01/20/1999CN1205580A Diversity receiver unit of quadrature frequency allocation multiplex signals
01/19/1999US5862451 In a communications system
01/19/1999US5862343 Circuit for logical stream sorting at CPU transfer time division for multiplexed (TDM) including bus interface circuitry
01/19/1999US5862312 Loosely coupled mass storage computer cluster
01/19/1999US5862311 Inter-equipment data link system
01/19/1999US5862200 Ground fault detector for T1 span equipment
01/19/1999US5862192 Methods and apparatus for equalization and decoding of digital communications channels using antenna diversity
01/19/1999US5862190 Method and apparatus for decoding an encoded signal
01/19/1999US5862189 Receiver for receiving a transmission signal
01/19/1999US5862186 RF simplex spread spectrum receiver and method
01/19/1999US5862180 Differential encoding of self-clocking data streams
01/19/1999US5862178 Method and apparatus for speech transmission in a mobile communications system
01/19/1999US5862177 Method for testing communications channels
01/19/1999US5862175 Digital transmission apparatus using differential coding and forward error correction
01/19/1999US5862171 Radio frequency communication network having adaptive communication parameters
01/19/1999US5862160 Secondary channel for communication networks
01/19/1999US5862157 Method and circuitry for monitoring a digital channel
01/19/1999US5862156 Adaptive sequence estimation for digital cellular radio channels
01/19/1999US5862155 Trellis coded FM digital communications system and method
01/19/1999US5862153 Coding apparatus and decoding apparatus for transmission/storage of information
01/19/1999US5862141 Variable bitrate radio modem system to enhance data transmission and reduce error rates
01/19/1999US5862137 For facilitating transmission of a unit of data
01/19/1999CA2161057C Soft decision digital communication method and apparatus
01/19/1999CA2145701C Signaling protocol for a noisy communications channel
01/19/1999CA2124707C Tailored error protection
01/14/1999WO1999001994A2 A subscriber unit and method for use in a wireless communication system
01/14/1999WO1999001959A2 Method and system for coding digital data
01/14/1999WO1998037594A3 Method to gain access to a base station in a discrete multitone spread spectrum communications system
01/14/1999DE19729109A1 Digital message signal transmission and evaluation method