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)
11/1995
11/15/1995EP0682425A2 A signaling protocol for a noisy communications channel
11/15/1995EP0682423A2 Code division multiple access system providing variable data rate access to a user
11/15/1995EP0682422A2 Method and device for synchronising redundantly transmitted information cell streams
11/15/1995EP0682420A1 Apparatus for estimating the transmission channel quality in a digital receiver
11/15/1995EP0682415A1 Punctured convolutional encoder
11/15/1995EP0681766A1 Digital control channels having logical channels for multiple access radiocommunication
11/15/1995EP0681762A1 Wireless personal local area network
11/15/1995EP0681761A1 Method and apparatus for controlling switched antenna diversity systems
11/15/1995EP0530339B1 Method for identifying a supervising signal at a base station of a mobile telephone system
11/15/1995CN1111889A Retransmission protocol for wireless communications
11/15/1995CN1111863A Alogorithmic controlling method of blind balancing system
11/15/1995CN1111861A Autorate method for simultaneous transmission of voice and data
11/15/1995CN1111858A Receiver code rate switching apparatus
11/14/1995US5467359 Apparatus for generating and checking the error correction codes of messages in a message switching system
11/14/1995US5467350 Conversion of ISDN LAPB and ISDN LAPD frames
11/12/1995CA2148997A1 Method and circuit arrangement for disturbance-free redirection of a message cell stream onto an alternate route
11/12/1995CA2148996A1 Method and circuit arrangement for disturbance-free redirection of a message cell stream onto an alternate route
11/12/1995CA2148874A1 Device for estimating the quality of a transmission channel and its use
11/09/1995WO1995030295A1 A system for the parallel assembly of data transmissions in a broadband network
11/09/1995WO1995030289A2 A direct sequence cdma coherent uplink detector
11/09/1995WO1995030282A1 Bad frame detection
11/09/1995DE4433896C1 Reducing radio transmissions in pico-cellular wireless communications
11/09/1995DE4416254A1 Transmission security procedure in ISDN network
11/09/1995CA2188122A1 Bad frame detection
11/08/1995EP0681384A2 Two priority fair distributed round robin protocol for a network having cascaded hubs
11/08/1995EP0681381A1 Method and apparatus for modifying frame check sequences in intermediate high speed network nodes
11/08/1995EP0681376A2 Methods of and devices for spread spectrum communication systems using forward error correction
11/08/1995EP0680675A1 Communication process in a radio telephone system
11/08/1995CN1111469A Transmitting and receiving apparatus and method including punctured convolutional encoding and decoding
11/07/1995US5465276 Method of forming a channel estimate for a time-varying radio channel
11/07/1995US5465271 Post detection weighted vector combining diversity receivers using phase metrics for mobile and indoor radio channels
11/07/1995US5465267 Error-correcting tandem encoding system
11/07/1995US5465207 Vehicle data system
11/02/1995WO1995027385A3 Method and apparatus for controlling transmission systems
11/02/1995EP0680158A1 Methods of and devices for spread spectrum communication systems using forward error correction
11/02/1995EP0680157A1 Methods of and devices for spread spectrum communication systems using forward error correction
11/02/1995EP0680154A2 Interference cancellation using power-inversion adaptive array and LMS adaptive equalizer
11/02/1995EP0680034A1 Mobile radio communication system using a sound or voice activity detector and convolutional coding
11/02/1995EP0679323A1 Method and apparatus of providing time sensitive message over a variable delay channel
11/02/1995EP0679304A1 Enhanced sleep mode in radiocommunication systems
11/02/1995EP0679300A1 A wireless packet data communications modem and method of use therein
11/02/1995DE4414574A1 Determining cable length or jitter reserve of data signal transmission paths
11/02/1995DE19515572A1 Fehlerermittlungsschaltkreis Error detection circuit
11/01/1995CN1111048A Apparatus for use in equipment providing a digital radio link between a fixed and a mobile radio unit
10/1995
10/31/1995US5463646 Method for error correction of a transmitted data word
10/31/1995US5463641 Tailored error protection
10/31/1995US5463633 Use of at commands to test modem with HP3065
10/31/1995US5463631 Error pulse width expanding circuit
10/26/1995WO1995028814A1 Method for adapting a transmission mode in a mobile radiocommunication system
10/26/1995WO1995026602A3 Decoding method
10/26/1995DE19514831A1 Information bit transfer system in local network with peripheral equipment
10/25/1995EP0628170B1 Process for detecting non-linear behaviour in a digital data transmission path to be examined
10/25/1995EP0587792A4 Battery saver for a communication device
10/25/1995CN1110891A A speech decoding method and a speech decoder
10/25/1995CN1110886A Standby power saving in mobile phones
10/25/1995CN1110884A 失帧的隐蔽 Frame loss concealment
10/25/1995CN1110883A Rejected frame concealment
10/24/1995US5461639 Fast forward link power control in a code division multiple access system
10/24/1995US5461632 Trellis coded FM digital communications system and method
10/24/1995US5461629 Error correction in a spread spectrum transceiver
10/24/1995US5461623 Data transmission system with abnormality discrimination
10/19/1995WO1995028050A1 Data level selection for multilevel vsb transmission system
10/19/1995WO1995028046A1 Method and apparatus for robust communications based upon angular modulation
10/19/1995WO1995024769A3 Universal reed-solomon coder/encoder
10/19/1995WO1995023384A3 Error correctable data transmission method and device based on semi-cyclic codes
10/19/1995DE4431021C1 Ersatzschaltung für mehrere Funktionseinheiten Equivalent circuit for a plurality of function units
10/18/1995EP0677967A2 Viterbi decoder for a high definition television
10/18/1995EP0677965A2 Partial response trellis decoder
10/18/1995EP0677964A2 HDTV Viterbi decoder
10/18/1995EP0677937A1 Method for detecting erasures in a multicarrier data transmission system
10/18/1995EP0677224A1 A method and apparatus for locating a digital control channel in a radiocommunication system
10/18/1995EP0677223A1 Automatic retransmission request
10/18/1995EP0677222A1 Layer 2 protocol in a cellular communication system
10/18/1995EP0586554A4 Binary data error correction using hint signal
10/18/1995EP0489880B1 Maximal ratio diversity combining technique
10/18/1995CN1110491A A method and apparatus for mitigating distortion effects in the determination of signal usability
10/18/1995CN1110486A Transmission error concealment
10/18/1995CN1110443A Method and apparatus for confirming delivery of files in a file broadcast system
10/18/1995CN1110442A Radio communication apparatus which can quickly recover from misjudgement of levels of a multilevel modulated signal
10/17/1995US5459772 External apparatus for monitoring a communication system
10/17/1995US5459764 Clock synchronization system
10/17/1995US5459741 Data transmission system
10/17/1995US5459731 In a communication network
10/17/1995US5459725 Reliable multicasting over spanning trees in packet communications networks
10/15/1995CA2147229A1 Method for detecting erasures
10/12/1995WO1995027385A2 Method and apparatus for controlling transmission systems
10/12/1995CA2146579A1 Received signal processing device, particularly for a mobile digital radiocommunication system
10/11/1995EP0676875A1 Method and apparatus for multiplexed transmission of digital data having different code rates and priorities
10/11/1995EP0676870A1 Space diversity receiver with antenna selection based on error rate and signal strength
10/11/1995EP0676869A1 Reception processing apparatus with switchable decision block for reduction of power consumption
10/10/1995US5457712 Method for providing time diversity
10/10/1995US5457701 Method for indicating packet errors in a packet-based multi-hop communications system
10/10/1995US5457678 Method and circuit arrangement for the transmission of message packets according to the asynchronous transfer mode in a communication network
10/10/1995US5457629 Vehicle data system with common supply of data and power to vehicle devices
10/10/1995US5457555 Optical transmission system
10/10/1995CA2055575C Device including a processor and a special operator for processing viterbi algorithms
10/05/1995WO1995026602A2 Decoding method
10/05/1995WO1995026599A1 A method of forward error correction
10/05/1995WO1995024775A3 Transmitter and receiver apparatus, method for transmitting and method for receiving and record carrier obtained by the method or the transmitter apparatus
10/04/1995EP0675620A1 Parallel data transmission unit using byte error correcting code
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