Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 1 - Arrangements for detecting or preventing errors in the information received
Patents for H04L 1 - Arrangements for detecting or preventing errors in the information received (103,402)
04/1998
04/09/1998WO1998015140A1 Two-way radio communication system
04/09/1998WO1998015120A1 Ntsc co-channel interference detectors responsive to received q-channel signals in digital tv signal receivers
04/09/1998WO1998015090A1 Method and apparatus for selectively transmitting packets of message data to a remote communication station
04/09/1998WO1998015089A1 Method and apparatus for determining activation status of a receiving station of a radio communication system
04/09/1998CA2267593A1 Method and apparatus for determining activation status of a receiving station of a radio communication system
04/08/1998EP0835006A2 Integrity check method and system for serial-based communication
04/08/1998EP0834222A1 Parallel concatenated tail-biting convolutional code and decoder therefor
04/08/1998EP0629325A4 Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a cdma cellular communications system.
04/08/1998CN1178617A Method and apparatus for formatting of data for transmission
04/08/1998CN1178616A Process for monitoring quantisation quality in digital data
04/07/1998US5737390 Digital exchange system with function of displaying operation state of system
04/07/1998US5737365 Method and apparatus for determining a received signal quality estimate of a trellis code modulated signal
04/07/1998US5737359 In a mobile communication system
04/07/1998US5737357 Apparatus and method for data pattern sensitivity correction
04/07/1998US5737337 Method and apparatus for interleaving data in an asymmetric digital subscriber line (ADSL) transmitter
04/07/1998US5737317 Communication system testing method
04/07/1998US5737311 Failure detection method in a communication channel with several routes
04/07/1998US5737252 Circuit arrangement comprising a permutation unit and method of processing a batch of items
04/07/1998US5737165 Apparatus for databus fault isolation
04/07/1998US5736933 Method and apparatus for providing redundancy in a communication network
04/02/1998WO1998013965A1 Error concealment in digital audio receiver
04/02/1998WO1998013941A1 Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters
04/02/1998WO1998013940A1 Error detection scheme for arq systems
04/02/1998DE19720236A1 High quality data transmission method
04/02/1998DE19642017C1 Data receiving system e.g. for motor vehicle locking system or immobiliser
04/02/1998CA2267373A1 Error detection scheme for arq systems
04/02/1998CA2267079A1 Error concealment in digital audio receiver
04/02/1998CA2265640A1 Method and apparatus for detecting bad data packets received by a mobile telephone using decoded speech parameters
04/01/1998EP0833475A2 Control of modulation process based on detected error rate
04/01/1998EP0833474A2 Method and apparatus for interleaving data in an asymmetric digital subscriber line (adsl) transmitter
04/01/1998EP0833350A2 Parallel connected PTC elements
04/01/1998EP0685129B1 Method and system for the dynamic modification of control parameters in a transmitter power control system
04/01/1998CN1178051A Method for frame quality detection and receiver
04/01/1998CN1178049A High-speed data transmission is mobile communication c networks
04/01/1998CN1178046A Method and apparatus for using walsh shift reying in a spread spectrum communication system
04/01/1998CN1178045A Message fragmenting in time diversity radio system
03/1998
03/31/1998US5734962 Satellite communications system utilizing parallel concatenated coding
03/31/1998US5734826 Variable cyclic redundancy coding method and apparatus for use in a multistage network
03/31/1998US5734678 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
03/31/1998US5734663 In a communications channel
03/31/1998US5734645 Layer 2 protocol in a cellular communication system
03/31/1998US5734341 Encoding digital data
03/30/1998CA2217357A1 Demand-based power and data rate adjustments to a transmitter to optimize channel capacity and power usage with respect to data transmission traffic over a fixed-bandwidth channel
03/26/1998WO1998012880A2 Multiple carrier transmission system with differential coding of subcarriers
03/26/1998WO1998012850A1 Method and apparatus for constant envelope quadrature amplitude modulation
03/26/1998WO1998012848A1 Interference mitigation by joint detection of cochannel signals
03/26/1998WO1998012844A1 Packet transmitter-receiver and packet receiver
03/26/1998WO1998012834A1 Method for clocked serial data-transmission of data blocks of identical length
03/26/1998WO1998012818A1 Transmission system with improved lock detection
03/26/1998WO1998012571A1 Position determination using multiple base station signals
03/26/1998DE19650833C1 Measurement apparatus for full-duplex two-wire transmission interface
03/26/1998DE19638654A1 Verfahren zur digitalen Nachrichtenübertragung A method for digital communications
03/26/1998CA2266100A1 Method for clocked serial data-transmission of data blocks of identical length
03/25/1998EP0831627A2 Assignment of subcarriers to an antenna array in a multicarrier transmitter
03/25/1998EP0831621A2 Communication control apparatus
03/25/1998EP0831616A2 Frame synchronization circuit and communications system
03/25/1998EP0831615A2 Receiver allowing adjustment of error thresholds based upon message type and message content
03/25/1998EP0831614A2 RF transponder with error detection and correction
03/25/1998EP0831613A1 Network adapter with conversion of a bit stream in transport frames
03/25/1998EP0831603A2 Method and system for information transmission in a TDMA radio digital mobile system
03/25/1998EP0831597A2 An information receiving system and a control method therefor
03/25/1998EP0830770A1 Method and apparatus for determining coding rate in a wireless communication system
03/25/1998EP0830741A1 High speed cyclical redundancy check system using a programmable architecture
03/25/1998CN1177429A Data receiving apparatus and method of deinterleaving data
03/25/1998CN1177262A Repeated signaling method by using symbol judgment threshold with separation-integration receiving
03/24/1998US5732111 Frequency error compensation for direct sequence spread spectrum systems
03/24/1998US5732105 Method of estimating signal quality in a DPSK demodulator
03/21/1998CA2215859A1 Method and apparatus for constant envelope quadrature amplitude modulation
03/19/1998WO1998011698A1 Methods and apparatus for encoding and decoding data
03/19/1998WO1998011688A1 A decoding technique for tail biting codes
03/19/1998WO1998011670A1 Method and apparatus for performing decoding of codes at variable data rates
03/19/1998CA2185847A1 Method and apparatus for encoding and decoding digital signals
03/18/1998EP0829989A2 Method for transmission and reception of digital multiplexed multi-carrier signals, transmission apparatus and receiving apparatus therefor
03/18/1998EP0829986A1 System for improving data throughput of a TCP/IP Network connection with slow return channel
03/18/1998EP0829154A1 A method for identifying data transmission rate, and a receiver
03/18/1998EP0829144A1 Apparatus and method for adaptive forward error correction in data communications
03/18/1998EP0679300A4 A wireless packet data communications modem and method of use therein.
03/18/1998CN1176722A Method and apparatus for decoding an encoded signal
03/18/1998CN1176721A A method for identifying data transmission rate, and a receiver
03/18/1998CN1176719A A method for determining connection quality, and a receiver
03/18/1998CN1176716A Method and apparatus for adatively selecting a communication strategy in a selective call radio communication system
03/18/1998CN1176703A Processing speech coding parameters in a telecommunication system
03/18/1998CN1176560A System for receiving variable encoding formats and number of transmission channels
03/18/1998CN1176548A Data communication system and method therefor
03/18/1998CN1176543A CDMA communication system
03/18/1998CN1037803C Modulator/demodulator for compatible high definition television system
03/17/1998US5729695 Method and device for acknowledgement of transmitted information
03/17/1998US5729577 Signal processor with improved efficiency
03/17/1998US5729560 Method and coding means for protected transmission of data on the basis of multi-component coding
03/17/1998US5729558 Method of compensating for Doppler error in a wireless communications system, such as for GSM and IS54
03/17/1998US5729557 Cellular communication system with multiple code rates
03/17/1998US5729538 Dual mode satellite/cellular terminal
03/17/1998US5729526 Asynchronous transfer mode type multimedia radiocommunication system
03/12/1998WO1998010618A1 Method and system for transmitting railroad information
03/12/1998WO1998010615A1 Setting service level in digital mobile communication system
03/12/1998WO1998010591A1 Information transmitting method, encoder/decoder of information transmitting system using the method, and encoding multiplexer/decoding inverse multiplexer
03/12/1998WO1998010568A1 Cellular communication system with dynamically modified data transmission parameters
03/12/1998WO1998010566A1 Wireless atm metropolitan area network
03/12/1998WO1998010557A1 Transmitter, receiver, transmission system, sending method, receiving method, and transmitting method
03/12/1998WO1998010555A2 Improvements in, or relating to, multi-carrier transmission systems
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