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)
10/1998
10/27/1998US5828699 Automatic differential absolute time delay equalizer
10/27/1998US5828695 QAM system in which the constellation is modified in accordance with channel quality
10/27/1998US5828677 Adaptive hybrid ARQ coding schemes for slow fading channels in mobile radio systems
10/27/1998US5828676 Method and apparatus for robust communication based upon angular modulation
10/27/1998US5828672 Estimation of radio channel bit error rate in a digital radio telecommunication network
10/25/1998CA2235900A1 Method and apparatus for detecting multiplexing standard mismatches in communication networks
10/22/1998WO1998047256A2 Device for and method of transmission of digital signals, in particular in dect-type systems
10/22/1998WO1998047248A1 System for transmitting high-speed added-value services in terrestrial digital broadcasting
10/22/1998WO1998046060A2 Information secret protection and error-correction system
10/22/1998WO1998037650A3 Transmit/receive compensation in a discrete multitone spread spectrum system
10/22/1998DE19713066C1 Early switching method between redundant transmission paths
10/22/1998CA2232337A1 Adaptive antenna array processing arrangement using a combined coherent and constant-modulus reference signal
10/21/1998EP0872979A2 System and method for monitoring performance of wireless lan and dynamically adjusting its operating parameters
10/21/1998EP0872974A2 Bit error pattern detection circuit
10/21/1998EP0872973A1 Data link system between an aircraft and a ground station, and failure restoration method
10/21/1998EP0872798A1 Computer memory organization
10/21/1998EP0872116A1 Method and apparatus for transmitting messages in a telecommunication system
10/21/1998EP0872096A1 Apparatus for demodulating and decoding video signals
10/21/1998EP0872095A1 Method and apparatus for symbol decoding using a variable number of survivor paths
10/21/1998EP0872086A1 Method and apparatus for discarding frames in a communications device
10/21/1998EP0872066A1 A method for determining connection quality, and a receiver
10/21/1998EP0872065A1 Method and system for identifying fault locations in a communications network
10/21/1998EP0872057A1 Deterministic selection of an optimal restoration route in a telecommunications network
10/21/1998EP0872049A1 Robust method and apparatus enabling multi-mode wireless optical communication
10/21/1998EP0872044A1 Message fragmenting in a time diversity radio system
10/21/1998EP0872041A1 Arrangement and method in a base station
10/21/1998EP0872035A1 Communication transceiver providing unscheduled acknowledge back responses
10/21/1998EP0872018A1 Receiving method and receiver
10/21/1998EP0872017A1 Digital transmission system for transmitting a digital audio signal being in the form of samples of a specific wordlength and occurring at a specific sampling rate
10/21/1998CN1196845A Method and apparatus for rate determination in communication system
10/21/1998CN1196841A Apparatus and method of determining symbol rate and carrier frequency
10/21/1998CN1196640A Method and decoder for decoding compressed moving-picture data
10/21/1998CN1196622A Apparatus for providing error correction data in digital data transfer system
10/21/1998CN1196621A Estimator of error rate
10/21/1998CN1196617A Method and device for transmission information through power-supply wire
10/21/1998CN1196612A Speech transmission/reception system in which error data is replaced by speech synthesized data
10/20/1998US5826198 Transmission of data over a radio frequency channel
10/20/1998US5826032 Method using a computer
10/20/1998US5825976 Device and method for efficient utilization of allocated transmission medium bandwidth
10/20/1998US5825832 Method and device for the reception of signals affected by inter-symbol interface
10/20/1998US5825828 Method and apparatus for multi-level quadrature amplitude modulation
10/20/1998US5825823 PCM channel diagnosis
10/20/1998US5825817 Radio wave measuring apparatus for digital communication system
10/20/1998US5825808 Random parity coding system
10/20/1998US5825807 System and method for multiplexing a spread spectrum communication system
10/20/1998US5825761 Radio communication equipment with transmission rate regulating function
10/20/1998US5825508 Image data receiving method for receiving retransimitted image data frames
10/20/1998US5825241 Differential demodulator
10/20/1998US5825211 Oversampled state machine for jitter tolerant pulse detection
10/15/1998WO1998046039A2 Wireless communications systems and methods utilizing data link reset
10/15/1998WO1998046026A1 Link adaption related to radio
10/15/1998WO1998045952A1 Method for decreasing the frame error rate in data transmission in the form of data frames
10/15/1998WO1998025369A3 Method for correcting errors from jamming and fading signals in a frequency hopped spread spectrum communication system
10/15/1998DE19815597A1 Datenübertragungssystem, mobile Station und Verfahren zum Verringern der Rahmenfehlerrate bei einer in Form von Datenrahmen erfolgenden Datenübertragung Data transmission system, mobile station and method for reducing the frame error rate at a taking place in the form of data frame transmission
10/15/1998DE19715022A1 System zur Übertragung hochratiger Mehrwertdienste im terrestrischen Rundfunk A system for transmitting high-rate value-added services in terrestrial broadcasting
10/14/1998EP0871170A2 Information reproducing apparatus and reproducing method
10/14/1998EP0870379A1 Routine testing parity maintenance
10/14/1998EP0870378A1 Concatenated error detection coding and packet numbering for hierarchical arq schemes
10/14/1998EP0870377A1 High-penetration transmission method for a radiocommunication system
10/14/1998EP0870372A1 Diversity antenna selection
10/14/1998EP0870371A1 Impairment determination for a diversity antenna selection process
10/14/1998EP0815509A4 Method and apparatus for data encoding and communication over noisy media
10/14/1998CN1195955A Communication method, transmitting apparatus and receiving apparatus
10/14/1998CN1195935A Method for decreasing frame error rate in data transmission in form of data frames
10/13/1998US5822540 Method and apparatus for discarding frames in a communications device
10/13/1998US5822524 System for just-in-time retrieval of multimedia files over computer networks by transmitting data packets at transmission rate determined by frame size
10/13/1998US5822398 Control of operating states of channel unit installed in performance monitoring capable D4 channel bank
10/13/1998US5822379 Device for receiving digital signals
10/13/1998US5822373 Method and apparatus for optimization of wireless communications
10/13/1998US5822367 Digital mobile data communication system
10/13/1998US5822340 Method for decoding data signals using fixed-length decision window
10/13/1998US5822339 Data decoder and method to correct inversions or phase ambiguity for M-ary transmitted data
10/13/1998US5822332 Pseudonoise code pull in circuit
10/13/1998US5822318 Method and apparatus for controlling power in a variable rate communication system
10/13/1998US5822313 Seamless handover in a cordless TDMA system
10/13/1998US5822310 High power short message service using broadcast control channel
10/08/1998WO1998044672A1 A controlled phase noise generation method for enhanced testability of clock and data generator and recovery circuits
10/08/1998WO1998044671A1 A method of and system for synchronously communicating data to a network having a reference clock signal
10/08/1998WO1998044660A1 Optical transmission device and method for checking transmission in an optical transmission device
10/08/1998WO1998044658A1 IrDA MODULATION/DEMODULATION INTEGRATED CIRCUIT DEVICE
10/08/1998WO1998044638A1 Communications systems and methods employing code rate partitioning with nonorthogonal modulation
10/08/1998WO1998044472A1 Unidirectional telemetry system
10/08/1998WO1998024253A3 Method and apparatus for mapping between cellular bit streams and wireline waveforms
10/08/1998CA2254817A1 A method of and system for synchronously communicating data to a network having a reference clock signal
10/08/1998CA2233858A1 Convolutional deinterleaver for digital communication instrument
10/07/1998EP0869675A2 An exciter circuit for digital television transmitters
10/07/1998EP0869674A1 Transmitting system and method
10/07/1998EP0869673A2 Television signal broadcasting system with common clock reference
10/07/1998EP0869672A1 Predistortion circuit for an RF amplifier
10/07/1998EP0869671A1 Frequency controlling circuit for digital television transmission
10/07/1998EP0869670A1 Combining adjacent TV channels for transmission by a common antenna
10/07/1998EP0869666A2 A digital system having a sync confidence counter
10/07/1998EP0869650A2 A trellis encoder for encoding a digital data stream
10/07/1998EP0869647A2 System of multicarreir modulation with dynamically scalable operating parameters
10/07/1998EP0869623A2 Method and apparatus for spectrally efficient transmission of CDMA modulated signals
10/07/1998EP0722638A4 Control and communications apparatus
10/07/1998CN1195450A Communication receiver for controlling receive operation in response to control value
10/07/1998CN1195434A Dual mode satellite/cellular terminal
10/07/1998CN1195241A Data communication method and data communication apparatus
10/06/1998US5819182 Method and apparatus for improving receiver performance in a land mobile communications system
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