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
10/06/1998US5819000 Magnetic recording and playback apparatus
10/06/1998US5818883 Multi-channel digital transceiver and method
10/06/1998US5818875 Modulation and demodulation method, modulator and demodulator
10/06/1998US5818853 ATM switch and control method thereof
10/06/1998US5818852 Packet data communication method and system
10/06/1998US5818826 Media access control protocols in a wireless communication network supporting multiple transmission rates
10/06/1998US5818820 Method and system for data link expansion or contraction using spread spectrum TDMA communication
10/06/1998US5818816 Communication device for switching connection from a working channel line to a protection channel line and vice versa
10/04/1998CA2233247A1 Television signal broadcasting system with common clock reference
10/04/1998CA2232759A1 Combining adjacent tv channels for transmission by a common antenna
10/03/1998CA2228714A1 Method and apparatus for spectral efficient transmission of cdma modulated signals
10/01/1998WO1998043437A1 Method of and apparatus for transmitting data for interactive tv applications
10/01/1998WO1998043433A1 Data processing system
10/01/1998WO1998043432A1 Transmission and reception of television programmes and other data
10/01/1998WO1998043431A1 Method of downloading of data to an mpeg receiver/decoder and mpeg transmission system for implementing the same
10/01/1998WO1998043430A1 Signal generation and broadcasting
10/01/1998WO1998043428A1 Method and apparatus for preventing fraudulent access in a conditional access system
10/01/1998WO1998043427A1 Broadcast and reception system, and receiver/decoder and remote controller therefor
10/01/1998WO1998043426A1 Broadcast and reception system, and conditional access system therefor
10/01/1998WO1998043425A1 Smartcard for use with a receiver of encrypted broadcast signals, and receiver
10/01/1998WO1998043421A1 Broadcast receiving system comprising a computer and a decoder
10/01/1998WO1998043415A1 Extracting data sections from a transmitted data stream
10/01/1998WO1998043383A1 Method and apparatus for communicating a block of digital information between a sending and a receiving station
10/01/1998WO1998043382A1 Method for reducing redundant transmissions of data groups
10/01/1998WO1998043374A2 A method of and apparatus for processing variable rate data for transmission in a fixed rate transmission medium
10/01/1998WO1998043373A1 Systems and methods of channel coding and inverse-multiplexing for multi-carrier cdma systems
10/01/1998WO1998043360A1 List output viterbi decoding with crc outer code for multi-rate signal
10/01/1998WO1998043248A1 Computer memory organization
10/01/1998WO1998043172A2 Access control system
10/01/1998WO1998043167A1 Computer memory organization
10/01/1998WO1998043165A1 Television or radio control system development
10/01/1998WO1998043162A1 Downloading a computer file from a transmitter via a receiver/decoder to a computer
10/01/1998WO1998031121A3 Communication bus system
10/01/1998WO1998024261A3 Measuring device for the interface of a transmission link with full duplex transmission in a two-wire common frequency operation
10/01/1998DE19726538C1 Line fault testing method for 2-wire bus system e.g. for motor vehicle
10/01/1998DE19712759A1 Bidirektionale optische Übertragungseinrichtung und Verfahren zur Überprüfung der Übertragung in einer bidirektionalen optischen Übertragungseinrichtung Bidirectional optical transmission device and method for checking the transmission in a bidirectional optical transmission device
10/01/1998CA2284867A1 Access control system
10/01/1998CA2284147A1 Downloading a computer file from a transmitter via a receiver/decoder to a computer
10/01/1998CA2284146A1 Computer memory organization
10/01/1998CA2284145A1 Method of and apparatus for transmitting data for interactive tv applications
10/01/1998CA2284044A1 Computer memory organization
10/01/1998CA2284036A1 Method and apparatus for preventing fraudulent access in a conditional access system
10/01/1998CA2284022A1 Television or radio control system development
10/01/1998CA2284016A1 Signal generation and broadcasting
10/01/1998CA2284014A1 Smartcard for use with a receiver of encrypted broadcast signals, and receiver
10/01/1998CA2284011A1 Data processing system
09/1998
09/30/1998EP0867079A1 Multisensor equalisation method and device enabling multisensor reception in the presence of interference and multipath propagation
09/30/1998EP0699334A4 Method and apparatus for group encoding signals
09/30/1998CN1194748A Method and apparatus for multirate data communications
09/30/1998CN1194744A Decryption of retransmitted data in an encrypted communication system
09/30/1998CN1194738A 接收方法和接收机 The receiving method and receiver
09/30/1998CN1194551A Digital radio communication machine
09/30/1998CN1194517A Precision FFT window position recovery apparatus of orthogonal frequency-division multiplexer system receiver
09/30/1998CN1194510A Position diversity reception, base station main frame apparatus and processing method for receiving signal
09/29/1998US5815534 In a modem receiving digitized facsimile transmissions of a document
09/29/1998US5815533 Receive processor device for use in a digital mobile radio systems
09/29/1998US5815531 Transmitter for encoded data bits
09/29/1998US5815525 Transmitter
09/29/1998US5815507 Error detector circuit for digital receiver using variable threshold based on signal quality
09/29/1998US5815099 Method and apparatus for differentially decoding signals
09/24/1998WO1998042155A2 A method for combining signals, and a receiver
09/24/1998WO1998042132A1 Method of processing, transmitting and receiving dynamic image data and apparatus therefor
09/24/1998WO1998042108A1 Method for implementing a transport layer protocol for wireless packet data delivery
09/24/1998WO1998042097A1 Message encoding technique for communication systems
09/24/1998WO1998042096A2 A communications system and method for interconnected networks h aving a linear topology, especially railways
09/24/1998WO1998042094A1 Direct spread spectrum communication system corresponding to delayed multiplex mode, and method of communication using the system
09/24/1998WO1998042079A2 A method of chip interleaving in direct sequence spread spectrum communications
09/24/1998DE19810532A1 Receiver unit for mobile communications system
09/24/1998DE19712144A1 Verfahren zur Reduzierung von redundanten Übertragungen von Datengruppen Method for reducing redundant transmissions of data groups
09/23/1998EP0866623A2 Method and apparatus for decoding compressed moving-picture data
09/23/1998EP0866616A1 Method of and apparatus for transmitting data
09/23/1998EP0866613A1 Preventing fraudulent access in a conditional access system
09/23/1998EP0866611A1 Broadcast receiving system comprising a computer and a decoder
09/23/1998EP0866589A1 Data transmitting method, data transmitting system, transmitter, and receiver
09/23/1998EP0866580A2 Error rate estimator for PSK signals
09/23/1998EP0866579A1 Packet transmission method without sending serial numbers
09/23/1998EP0866578A2 Maximum likelihood sequence estimation and decoding for burst mode signals
09/23/1998EP0866568A1 Method and reception device for the detection of data
09/23/1998EP0865696A2 Digital television synchronization
09/23/1998CN1193884A Communication system
09/23/1998CN1193883A Differential detector with error correcting function
09/23/1998CN1193852A Method and apparatus for nested automatic protection switching
09/22/1998US5812968 Vocoder apparatus using the link margin
09/22/1998US5812947 Cellular/satellite communications systems with improved frequency re-use
09/22/1998US5812771 Distributed chassis agent for distributed network management
09/22/1998US5812605 Multi-channel digital transceiver and method
09/22/1998US5812603 Digital communications system
09/22/1998US5812602 System and device for, and method of, communicating according to a trellis code of baseband signals chosen from a fixed set of baseband signal points
09/22/1998US5812601 Coding for higher-level modulation
09/22/1998US5812600 Method and apparatus for mitigating distortion effects in the determination of signal usability
09/22/1998US5812558 Device and method for generating multiplexed signals with real time inputs for testing voice grade channels in a demultiplexer
09/22/1998US5812556 Fault tolerant switch fabric with control and data correction by hamming codes and error inducing check register
09/22/1998US5812542 Method for determining weighting coefficients in a CDMA radio receiver
09/22/1998US5812539 Dual mode satellite/cellular terminal
09/22/1998US5812528 Measuring round trip time in ATM network virtual connections
09/22/1998US5812524 Deterministic selection of an optimal restoration route in a telecommunications network
09/22/1998CA2146024C Method and apparatus for providing cryptographic protection of a data stream in a communication system
09/22/1998CA2133009C Transmission error correction code appending device which can regulate a maximum delay of an interleaver in a variable bit rate video coding system
09/22/1998CA2118277C Facility type determination technique
09/22/1998CA2111544C Circular viterbi decoder
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