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)
10/1999
10/21/1999CA2327284A1 Test access and performance monitoring system and method for cross-connect communication networks
10/20/1999EP0951188A1 A method for updating a channel coding scheme for digital communication systems
10/20/1999EP0951156A2 Multicarrier transceiver with a single Fourier transformer
10/20/1999EP0951091A2 Wireless communications system having a space-time architecture employing multi-element antennas at both the transmitter and receiver
10/20/1999EP0950313A1 Collision avoidance in a half-duplex communication system
10/20/1999EP0950301A1 Transmitter method and transmission system using adaptive coding based on channel characteristics
10/20/1999EP0950300A1 Secondary channel using code violations
10/20/1999EP0950298A1 Method and device for network protection
10/20/1999EP0864125A4 Data integrity and cross-check code with logical block address
10/20/1999EP0823153A4 High integrity transport for time critical multimedia networking applications
10/20/1999EP0632911B1 Error detector circuit and method for receiver operative to receive discretly-encoded signals
10/20/1999CN1232600A Setting service level in digital mobile communication system
10/20/1999CN1232591A NTSC co-channel interference detectors responsive to received Q-channel signals in digital TV signal receivers
10/20/1999CN1232589A Decoder utilizing soft information output to minimize error rates
10/20/1999CN1232331A Method for error correction and error detection of data transmission between optical large scale memory and host computer
10/20/1999CN1045856C Over plug-in-substraction positive (or negative) code speed regulating method and apparatus
10/20/1999CN1045855C Digital positive/zero/negative code speed regulating method and apparatus
10/19/1999US5970098 Multilevel encoder
10/19/1999US5970089 Method and apparatus for generating a probing signal for a system having non-linear network and codec distortion
10/19/1999US5970088 Reverse channel next cancellation for MDSL modem pool
10/19/1999US5970085 Method and receiver for coded satellite digital audio broadcasting
10/19/1999US5970063 Method for unacknowledged data frame delivery in a noisy wireless environment
10/19/1999US5970061 Transmission space diversity controlling method and transmission space diversity apparatus
10/19/1999US5970057 Method and apparatus for distinguishing between a digital control channel and a digital traffic channel in a radiocommunication system
10/19/1999US5970047 Communications method, communication apparatus, reception method, and reception apparatus
10/19/1999US5968198 Decoder utilizing soft information output to minimize error rates
10/19/1999US5968197 Method and apparatus for data recovery
10/15/1999CA2234777A1 Asymmetric equalization system for data transmission
10/14/1999WO1999052302A1 Paging method and apparatus with acknowledgement capability
10/14/1999WO1999052233A1 Adaptive reference pattern for spread spectrum detection
10/14/1999WO1999052225A1 Ensuring quality of information transfer in telecommunication network
10/14/1999WO1999052216A2 Channel encoding/decoding device and method
10/14/1999WO1999044294A3 Signal coding
10/14/1999WO1999020027B1 Splitterless multicarrier modem
10/14/1999DE19910903A1 Method of expanded configuration indication for vestigial sideband television signals
10/14/1999DE19815825A1 Method of analogue distortion correction and decoding for distorted, frequency-selective message transmission channels
10/14/1999CA2291673A1 Paging method and apparatus with acknowledgement capability
10/13/1999EP0949832A1 Method and apparatus for allocation of a transmission frequency within a given spectrum
10/13/1999EP0949780A2 A frame format and method and apparatus for processing a frame
10/13/1999EP0949779A2 Encoding methods and apparatus
10/13/1999EP0949778A2 Dummy bit elimination device and coding apparatus for FEC code word
10/13/1999EP0948850A1 A digital communications system having an automatically selectable transmission rate
10/13/1999EP0883527B1 Control system for a restraining device, particularly in a motor vehicle
10/13/1999EP0664187B1 Grinding tape and method of manufacturing the same
10/13/1999CN1231785A Transmission of signaling data in an adjustable rate wireless communication system
10/13/1999CN1231552A Signal transmitting system for mobile communication network
10/12/1999US5966416 Verification of PN synchronization in a spread-spectrum communications receiver
10/12/1999US5966414 System and method for processing signals to determine their stochastic properties
10/12/1999US5966413 Digital demodulator and method of operation
10/12/1999US5966412 Apparatus and method for processing a Quadrature Amplitude Modulated (QAM) signal
10/12/1999US5966401 RF simplex spread spectrum receiver and method with symbol deinterleaving prior to bit estimating
10/12/1999US5966384 Method and apparatus for data transmission within a broad-band communication system
10/12/1999US5966374 High-speed data transmission in mobile communication networks
10/12/1999US5966373 Waveform and frame structure for a fixed wireless loop synchronous CDMA communications system
10/12/1999US5966306 Method for verifying protocol conformance of an electrical interface
10/12/1999US5966188 Decimation of baseband DTV signals prior to channel equalization in digital television signal receivers
10/12/1999US5966186 Digital broadcast receiving device capable of indicating a receiving signal strength or quality
10/12/1999US5966083 Electronic indentification system with transponder muting
10/12/1999US5964896 Method and apparatus for a high speed cyclical redundancy check system
10/12/1999CA2152177C Method and system for synchronizing an encoder and a decoder when an error is detected upon transmission of encoded data on communication networks
10/10/1999CA2268424A1 Method and apparatus for allocation of a transmission frequency within a given spectrum
10/07/1999WO1999050991A1 Quality evaluation method
10/07/1999WO1999050990A1 An interleaving scheme for blocks in a packet switched system
10/07/1999WO1999050989A1 Adaptive modulation for cdma systems
10/07/1999WO1999050981A1 Digital audio broadcasting method using puncturable convolutional code
10/07/1999WO1999050967A1 ACTIVATION OF MULTIPLE xDSL MODEMS WITH IMPLICIT CHANNEL PROBE
10/07/1999WO1999050963A2 TURBO ENCODING/DECODING DEVICE AND METHOD FOR PROCESSING FRAME DATA ACCORDING TO QoS
10/07/1999WO1999039517A3 Time difference of arrival measurement system
10/07/1999WO1998042079A3 A method of chip interleaving in direct sequence spread spectrum communications
10/07/1999DE19815408A1 Data transmission optimization arrangement for memory-equipped bidirectional radio channel
10/07/1999DE19814098C1 Redundant relay contact control circuit for automation system
10/07/1999DE19814096A1 Changeover to subsystem connected in cold redundancy, in hierarchical automation system
10/07/1999CA2326531A1 Digital audio broadcasting method using puncturable convolutional code
10/07/1999CA2325993A1 An interleaving scheme for blocks in a packet switched system
10/06/1999EP0948171A1 Adaptive equaliser using known and pseudo-known symbols
10/06/1999EP0948154A2 Data communication system and method using an hybrid ARQ scheme
10/06/1999EP0948140A1 Iterative demapping and decoding of multilevel modulated signal
10/06/1999EP0947069A1 Receiver decoder circuitry, and associated method, for decoding a channel encoded signal
10/06/1999EP0947068A2 A communication system and a terminal
10/06/1999EP0947046A1 Dpsk demodulator
10/06/1999EP0946920A2 Method and apparatus for real-time ionospheric mapping and dynamic forecasting
10/06/1999EP0620518B1 Methods and apparatus for generating linear-feedback-shift-register sequences
10/06/1999CN2342522Y DC power modulated digital communication device
10/06/1999CN1231083A Processor and processing method
10/06/1999CN1230832A Simply-constructed digital radio communication system capable of changing transmission capacity mode
10/06/1999CN1230830A Dynamic and smart spreading for wideband CDMA
10/06/1999CA2234008A1 Encoding methods and apparatus
10/05/1999US5963885 Sensing circuit
10/05/1999US5963873 Digital multiplex radio system
10/05/1999US5963590 Method for receiving digital radio signals and a digital radio signals receiver
10/05/1999US5963559 Radio transmission with a slow transmission mode used when retransmission of a data frame fails even repeated
10/05/1999US5963545 Fault evaluating system for transmission apparatus
10/05/1999US5961659 Independent simultaneous queueing of message descriptors
10/05/1999US5961605 Method and apparatus for acknowledging TCP data packets
10/05/1999CA2188204C Communication control unit
10/05/1999CA2128852C Coding device with termination of decoder operation
10/03/1999CA2265102A1 A tapped delay line space/time processor weight estimating calculator
09/1999
09/30/1999WO1999049689A2 Method and device for estimating the carrier-to-interference ratio in a radio communication system
09/30/1999WO1999049672A1 Method for adapting a receiver to transmission conditions and receiver for carrying out the method
09/30/1999WO1999049631A1 Iterative equalization and decoding
1 ... 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 ... 1035