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)
09/1999
09/30/1999WO1999049610A1 Traffic channel quality estimation derived from a digital control channel
09/30/1999WO1999049609A1 Spread spectrum communication device and spread spectrum communication method
09/30/1999WO1999049600A1 Parity determining apparatus and method
09/30/1999WO1999026375A3 Method of operating a digital data distribution network
09/30/1999DE19813507A1 Verfahren zur Anpassung eines Empfangsgerätes an Übertragungsbedingungen und Empfangsgerät hierfür Method for adapting the receiving device to transfer conditions and receiving apparatus therefor
09/30/1999CA2325421A1 Spread spectrum communication device and spread spectrum communication method
09/29/1999EP0946024A1 Decision feedback equalisation, in particular for data communication over powrr distribution networks
09/29/1999EP0946015A1 Method and system for estimating transmission quality
09/29/1999EP0946014A1 Method for detecting a sequence of symbols from a received signal, and Viterbi processor for carrying out the method
09/29/1999EP0946001A2 Method and radio communication system for transmission of speech information
09/29/1999EP0945041A2 Measuring device for the interface of a transmission link with full duplex transmission in a two-wire common frequency operation
09/29/1999EP0945040A2 Circuitry and method for improved signal reception acknowledgment in a radio communication system
09/29/1999EP0944989A1 System controlled asymmetrical automatic repeat request protocol method
09/29/1999EP0944973A1 Method for suppressing interference signals during transmission of digital signals
09/29/1999EP0944972A2 Method and apparatus for mapping between cellular bit streams and wireline waveforms
09/29/1999EP0944962A1 Method and circuit for decoding a cyclically coded signal
09/29/1999CN1230061A Communication controlling apparatus for controlling communication between remote device and upper device and method thereof
09/28/1999US5960336 Data receiving apparatus
09/28/1999US5960067 Apparatus and method for parallel transmission of data over a telephone line
09/28/1999US5960040 Communication signal processors and methods
09/28/1999US5960010 Error detection and error concealment of convolutionally encoded data
09/28/1999US5959970 Circuit pack sparing arrangement
09/28/1999US5959699 Reception mode control in radio receivers for receiving both VSB and QAM digital television signals
09/28/1999US5959558 Method and an arrangement relating to communication systems
09/28/1999US5958081 Energy efficient remote control protocol with improved reliability
09/28/1999US5958080 Method and apparatus for detecting and recovering from errors occurring in a transmission of digital information
09/28/1999US5958064 Multiple node dual level error recovery system and method
09/28/1999CA2181809C Split frequency band signal digitizer and method
09/28/1999CA2181807C Wideband frequency signal digitizer and method
09/23/1999WO1999048237A1 A method for estimating channel bit error ratio, and receiver
09/23/1999DE19811002A1 Information transmission method for air interface of radio communications system
09/22/1999EP0944275A2 Broadcast information delivering system
09/22/1999EP0944201A2 System and method for measuring channel quality in a communication system
09/22/1999EP0944200A2 Adaptive modulation method and apparatus
09/22/1999EP0944199A1 Data sequence generator, transmitter, information data decoder, receiver, transceiver, data sequence generating method, information data decoding method, and recording medium
09/22/1999EP0944177A2 Spread spectrum encoding device and method using data to send as initial values of sequence generator
09/22/1999EP0943194A1 Process and device for transmitting at least one part of a digital message from a first to a second equipment
09/22/1999EP0943191A1 System and method for the non-sequential transmission of control signals within a speech transmission
09/22/1999CN1229554A Multilevel coding with time diversity
09/21/1999US5956401 In-service monitoring in communications networks
09/21/1999US5956384 Apparatus and method for automatically detecting defective lines in a cable and for automatically switching from the defective line to an extra line
09/21/1999US5956376 Apparatus for varying a sampling rate in a digital demodulator
09/21/1999US5956370 Wrap-back test system and method
09/21/1999US5956342 Priority arbitration for point-to-point and multipoint transmission
09/21/1999US5956332 High-speed data transmission in mobile communication networks
09/21/1999US5955992 Frequency-shifted feedback cavity used as a phased array antenna controller and carrier interference multiple access spread-spectrum transmitter
09/21/1999US5955959 Synchronization message transmitting apparatus
09/21/1999US5954839 Error protection method for multimedia data
09/21/1999US5954835 Check sequence preservation
09/21/1999CA2169904C System and method for determining epl message transmission retries
09/21/1999CA2167741C Modulator-demodulator device capable of detecting an unsynchronized frame state
09/21/1999CA2040102C Selecting the most suitable receiver antenna from two or more receiver antennas
09/16/1999WO1999046908A1 Local network, especially ethernet network, with redundancy properties and redundancy manager
09/16/1999WO1999046889A1 Method for random-access communication with binary feedback
09/16/1999WO1999046886A2 Off-line broadband network interface
09/16/1999WO1999046884A1 Method and apparatus for signal degradation measurement
09/16/1999WO1999046883A1 Received signal quality determination methods and systems for convolutionally encoded communication channels
09/16/1999WO1999046875A1 Method and apparatus for signal acquisition and power control
09/16/1999WO1999046869A1 Correction of signal-interference ratio measurements
09/16/1999WO1999007076A3 Adaptive channel encoding method and device
09/16/1999DE19810587A1 Ethernet (RTM) network with redundancy characteristics
09/16/1999CA2649659A1 Gigabit ethernet transceiver
09/15/1999EP0942565A2 Phase estimation for fading channels
09/15/1999EP0942561A2 Adaptive step size for channel estimation
09/15/1999EP0942550A1 Adaptive radio link
09/15/1999EP0941591A1 Transit modulator for jittering signals
09/15/1999EP0941585A1 Radio communication system
09/15/1999EP0941582A1 Method for correcting errors from a jamming signal in a frequency hopped spread spectrum communication system
09/15/1999EP0891656B1 Data block convolutional coding device and method, and corresponding decoding method and device
09/15/1999CN1228888A Variable length coding with error protection
09/15/1999CN1228655A Data distribution system and data distribution method
09/15/1999CN1228647A Transmitter and receiver, and communication system and communication method
09/14/1999US5953646 System for controlling power consumption of a mobile radio communication device during standby using signal error rate
09/14/1999US5953636 Single-chip DBS receiver
09/14/1999US5953395 Communication apparatus using telephone network
09/14/1999US5953378 Frame synchronization circuit and communications system
09/14/1999US5953376 Probabilistic trellis coded modulation with PCM-derived constellations
09/14/1999US5953372 Loopback transmission testing in a communications device
09/14/1999US5953371 Remote terminal apparatus
09/14/1999US5953366 Receiving apparatus, receiving method, and terminal unit for use with radio system
09/14/1999US5953324 CDMA mobile communication method, system and mobile station apparatus
09/14/1999US5953313 Circuit switching control method for multiplex communication equipment
09/14/1999US5951707 Method for use in a communications system
09/14/1999US5951701 Detection of loop-back conditions on faulty digital trunks
09/14/1999CA2140484C Method and apparatus for communicating multilevel modulated data using concatenated coding
09/10/1999WO1999045660A1 Rate control device and method for cdma communication system
09/10/1999WO1999045657A1 Decoding of space-time coded signals for wireless communication
09/09/1999DE19909051A1 Error detection and correction in trigger circuits
09/09/1999DE19805647A1 Method of detecting the transmission quality of digital radio signals consisting of a regular sequence of data symbols separated by null symbols
09/08/1999EP0940941A1 Transactional message handling in communications systems
09/08/1999EP0940933A2 A method and apparatus for controlling the power radiated by a wireless terminal in a telecommunications system
09/08/1999EP0940020A1 Method for correcting errors from a fading signal in a frequency hopped spread spectrum communication system
09/08/1999CN1228234A Method and system for transmitting rail road information
09/08/1999CN1228213A Wide-area wireless distribution system
09/08/1999CN1228212A High data rate CDMA wireless communication system of lowering peak-to-average transmission power
09/08/1999CN1228211A High rate CDMA wireless communication system
09/07/1999US5950124 Cellular communication system with dynamically modified data transmission parameters
09/07/1999US5949832 Method for processing a received data communication signal
09/07/1999US5949822 Encoding/decoding scheme for communication of low latency data for the subcarrier traffic information channel
09/07/1999US5949814 High-data-rate supplemental channel for CDMA telecommunications system
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