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)
11/1998
11/17/1998US5838742 Diversity path co-channel interference reduction
11/17/1998US5838741 Communication device and method for reducing effects of noise introduction by synchronizing data transfer to a received signal
11/17/1998US5838737 Method and apparatus for estimating PSK modulated signals
11/17/1998US5838728 High rate reed-solomon concatenated trellis coded 16 star QAM system for transmission of data over cellular mobile radio
11/17/1998US5838698 In a telecommunication apparatus
11/17/1998US5838668 Satellite broadcast communications system
11/17/1998US5838267 Method and apparatus for encoding and decoding digital information
11/17/1998CA2176478C Optimization of transmitted pulse shape and receiver timing in digital system
11/17/1998CA2131488C Computationally efficient data decoder and method used therein
11/17/1998CA2066406C Dynamic encoding rate control minimizes traffic congestion in a packet network
11/12/1998WO1998051111A1 Link quality dependent modulation scheme
11/12/1998WO1998051031A1 Monitoring line conditions in the data transmission mode
11/12/1998WO1998051030A1 Method and system for determining signal to interference plus noise power ratio (sinr) in a communications system
11/12/1998WO1998051028A1 Method and apparatus for processing data from multiple sources
11/12/1998WO1998051019A1 Time-shifted weighting for signal processing
11/12/1998WO1998051017A1 Arrangements and method relating to handling of digital signals
11/12/1998WO1998037713A3 Support of multiple modulation levels for a cellular packet control channel
11/12/1998WO1998035450A3 An information coding method and devices utilizing error correction and error detection
11/12/1998WO1998026619A3 Circuitry and method for improved signal reception acknowledgment in a radio communication system
11/12/1998DE19717643A1 Verfahren und Anordnung zur Regelung der Entscheiderschwelle und des Abtastzeitpunktes eines Datenregenerators Method and apparatus for controlling the decision threshold and the sampling of a data regenerator
11/11/1998EP0877526A2 Demodulating digital video broadcast signals
11/11/1998EP0877517A2 Output interface for a digital communication system
11/11/1998EP0877516A1 Signal Processing System
11/11/1998EP0877514A2 Matched filter
11/11/1998EP0877513A1 Dynamic configuration of radio link protocol in a telecommunications system
11/11/1998EP0877503A2 Test pattern generating apparatus, communication device and simulator
11/11/1998EP0876712A1 A method and arrangement for minimizing skew
11/11/1998EP0876179A1 Adaptive, performance-optimizing communication system for communicating with an implanted medical device
11/11/1998EP0692167B1 Apparatus and method for transmitting information between dual redundant components utilizing four signal paths
11/11/1998CN1198861A Confidence and frame signal quality detection in a soft decision convolutional decoder
11/10/1998US5835857 Position determination for reducing unauthorized use of a communication system
11/10/1998US5835541 Sampling phase synchronizing apparatus and bidirectional maximum likelihood sequence estimation scheme therefore
11/10/1998US5835529 Digital communication apparatus
11/10/1998US5835508 Network for transmitting information data without error correction when a transmission channel quality is good, or with redundancy bits of a predetermined length added to each datum when the channel quality is poor
11/10/1998US5835507 Error sensing method for improving error control capability in data communications
11/10/1998US5835501 Built-in test scheme for a jitter tolerance test of a clock and data recovery unit
11/10/1998US5835500 Error rate monitor
11/10/1998US5835499 Data processing device for FM multi-channel broadcasting
11/10/1998US5835483 Information transmission system utilizing at least two channels in the redundancy mode
11/10/1998US5835165 Reduction of false locking code words in concatenated decoders
11/10/1998US5834753 Laser scanner module having integral interface with hand-held data capture terminal proximity and label sensing, and enhanced sensitivity and power efficiency
11/10/1998US5833584 Striding exerciser with upwardly curved tracks
11/05/1998WO1998049852A1 A method and an arrangement for controlling scanning of radio channels by a mobile station operating in standby mode
11/05/1998WO1998049851A2 Method for voice quality improvement in a wireless transmission system
11/05/1998WO1998049811A2 Method and device for regulating the decision threshold and sampling point of a data regenerator
11/05/1998WO1998049800A1 Estimation of radio channel bit error rate in a digital radio telecommunications network
11/05/1998WO1998049799A2 Method for transmitting data securely in the synchronous digital hierarchy
11/05/1998WO1998049797A2 Method for transmitting packet switched data in a mobile communications system
11/05/1998WO1998049796A2 Method for transmitting packet switched data in a mobile communications system
11/05/1998WO1998049570A1 Computer monitoring system
11/05/1998WO1998038769A3 Frame alignment of test signals in a communication system
11/05/1998CA2288005A1 A method and an arrangement for controlling scanning of radio channels by a mobile station operating in standby mode
11/04/1998EP0876045A1 Improved billing scheme for a telecommunications network
11/04/1998EP0876031A2 Symbol synchronization in multicarrier receivers
11/04/1998EP0876023A1 Transmitter and transmitting method, receiver and receiving method, and transceiver and transmitting/receiving method
11/04/1998EP0876021A1 System and method for transmitting data over a plurality of channels
11/04/1998EP0875120A1 Method and apparatus for transmitting an outbound message in a two-way messaging system
11/04/1998EP0875119A1 Temporary equipment identifier message notification method
11/04/1998EP0565652B1 Peak to average power ratio reduction methodology for qam communications systems
11/04/1998CN1198282A Data transmitting method, data transmitting system, transmitter and receiver
11/04/1998CN1198274A Transmitted power controller
11/04/1998CN1198225A Apparatus and method employing window reset for excessive bit error rate alarm detection and clearing
11/03/1998US5832379 Communications system including control means for designating communication between space nodes and surface nodes
11/03/1998US5832044 Transmitter antenna diversity and fading-resistant modulation for wireless communication systems
11/03/1998US5832036 Radio relay apparatus
11/03/1998US5832031 In a wireless communications system
11/03/1998US5832026 Method for correcting errors from a fading signal in a frequency hopped spread spectrum communcation system
11/03/1998US5832024 Digital wireless speaker system
11/03/1998US5832003 Video error/distortion checker
11/03/1998US5832001 Variable rate viterbi decorder
11/03/1998US5831999 Method and apparatus for correcting code errors
11/03/1998US5831970 Transmission apparatus
11/03/1998CA2118227C Coordinated coding for digital transmission
10/1998
10/30/1998CA2235231A1 System and software method of operation of a radio data base station
10/29/1998WO1998048544A1 Apparatus and method for selecting different communication speeds on a data signal line
10/29/1998WO1998048537A1 Method for detecting data errors
10/29/1998WO1998048531A1 Method for masking defects in a stream of audio data
10/29/1998WO1998048517A1 Turbo-coding with staged data transmission and processing
10/29/1998WO1998037647A3 Method to gain access to a base station in a discrete multitone spread spectrum communications system
10/29/1998CA2257843A1 Method for detecting data errors
10/28/1998EP0874499A2 Analog-to-digital converter for digital receiver
10/28/1998EP0874493A2 Scrambling in a full-duplex modem
10/28/1998EP0874492A2 Deinterleaver
10/28/1998EP0874491A2 Signal processing apparatus and method
10/28/1998EP0874475A2 Adaptive antenna array using a combined coherent and constant modulus reference signal
10/28/1998EP0874472A2 Method and device for informationtransmission on power supply lines
10/28/1998EP0874466A2 Reed-Solomon decoding circuit and method
10/28/1998EP0874341A2 Reduced power installation and supervision of wireless security system devices
10/28/1998EP0873641A1 Communication system and method
10/28/1998EP0873640A1 Method and apparatus for reduced power consumption in a mobile packet data communication system
10/28/1998EP0873613A1 Data transmission method and equipment for encoding a signal
10/28/1998EP0586554B1 Binary data error correction in a modulated signal using hint signal indicating noise exceeding certain limits
10/28/1998CN1197567A Point-to-point internet protocol
10/28/1998CN1197564A Process and circuit for processing useful data
10/28/1998CN1197558A Cellular communication system with multiple code rates
10/28/1998CN1197352A TCM decoder of high definition television receiver and decoding method
10/28/1998CN1197337A Method and apparatus for spectral efficient transmission of CDMA modulated signals
10/28/1998CN1197334A Error correcting/decoding apparatus and error correcting/decoding method
10/28/1998CN1197237A Deinterleaver
10/27/1998US5828754 Method of inhibiting copying of digital data
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