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)
05/1997
05/13/1997US5629948 Data transmission scheme with automatic repeat request
05/13/1997US5629940 Transmitting and receiving long messages in a wireless one-way communication system while reserving selected slots for short messages
05/10/1997CA2186801A1 Method for detecting the sub-rate of a data packet for a multi-rate transmission scheme
05/09/1997WO1997016917A1 Method and apparatus for transmitting messages in a telecommunication system
05/09/1997WO1997016900A1 Method and apparatus for symbol timing tracking
05/09/1997WO1997016899A1 Data transmission method
05/09/1997CA2236348A1 Method and apparatus for transmitting messages in a telecommunication system
05/07/1997EP0772329A1 Method and apparatus for decoding orthogonal frequency division multiplexed (OFDM) carriers
05/07/1997EP0772328A1 Method and apparatus for differentially decoding signals
05/07/1997EP0772317A2 Adaptive power control and coding for satellite communications
05/07/1997EP0772316A2 Asynchronous transfer mode type multimedia radiocommunication system
05/07/1997EP0771493A2 Channel hopping in a radio communications system
05/07/1997EP0669025A4 A dual mode radio communication unit.
05/07/1997EP0532503B1 Cable television radio frequency subscriber data transmission apparatus and calibration method
05/07/1997EP0471085B1 Error-correcting encoding and decoding method and system using a product code and a superimposed code
05/07/1997DE19540741A1 Error-free transmission method for time-critical digital signal with variable bit rate
05/07/1997CN1149363A Diversity receiver for signals with multipath time dispersion
05/06/1997US5627845 Variable rate communication method and a variable rate communication system
05/06/1997US5627837 Apparatus and method for suppressing protection switching in a digital communication system in the event of an error burst
05/06/1997US5627822 Method and circuit arrangement for disturbance-free redirection of a message cell stream onto an alternate route
05/02/1997EP0771123A2 Modulator/demodulator for compatible high definition television system
05/02/1997EP0771092A1 A method for transmitting packet data with hybrid FEC/ARQ type II
05/02/1997EP0771084A1 Time diversity transmission-reception system
05/02/1997EP0770962A2 Packet data communication system
05/02/1997EP0770294A1 Non-transparent data transmission in a digital telecommunications system
05/01/1997WO1997016046A1 Variable length burst transmission over the physical layer of a multilayer transmission format
05/01/1997WO1997016044A1 Retransmission control method for cdma mobile communication
05/01/1997WO1997015942A1 Loosely coupled mass storage computer cluster
04/1997
04/30/1997DE19603724A1 Verfahren zur Gewinnung einer Information über die Restfehler in einem übertragenen kanaldecodierten digitalen Signal A process for obtaining an information about the residual error in a transmitted channel-decoded digital signal
04/30/1997CN1148920A Data communication system having channel switching means
04/30/1997CN1148919A Variable rate transmitting method, and transmitter and receiver using it
04/30/1997CN1148764A Error resetting method in data communication and apparatus thereof
04/29/1997US5625892 Dynamic power regulator for controlling memory power consumption
04/29/1997US5625651 Discrete multi-tone data transmission system using an overhead bus for synchronizing multiple remote units
04/29/1997US5625642 Spread-response precoding system having signature sequences longer than the inter-symbol time interval
04/29/1997US5625555 Data communication system with adapter for removable coupling of portable data terminals
04/29/1997US5625180 Data capture system with communicating and recharging docking apparatus and hand-held data terminal means cooperable therewith
04/24/1997WO1997015164A2 Simplifying decoding of codewords in a wireless communication system
04/24/1997WO1997015131A2 Method for improving the efficiency of transmission in mobile networks
04/24/1997WO1997015120A1 Error correcting encoder, error correcting decoder, and communication system
04/24/1997WO1997004542A3 Multipoint-to-point arbitration in a network switch
04/24/1997WO1997003501A3 Dual mode satellite/cellular terminal
04/24/1997DE19616829C1 Radio transfer system for digital signals between several subscriber terminals and base station
04/23/1997EP0769876A2 Cable television data path error analyser
04/23/1997EP0769857A2 Integrated cellular communications system
04/23/1997EP0769228A1 Method and apparatus for transmitting data isochronously at a rate less than the isochronous data rate
04/23/1997EP0769227A1 Signal protection and monitoring system
04/23/1997EP0543907B1 Method of recovering lost bits in digital transmission
04/23/1997CN1148305A Feeding unbalance detector in repeated line
04/22/1997US5623643 Telecommunication system with improved reconfiguration flexibility having first and second communication modules where new operating system is tested with isolated second communication modules
04/22/1997US5623515 Data communication system for reducing a risk of transmission errors
04/22/1997US5623497 Bit error rate measurement apparatus
04/22/1997US5623486 Transmission power control method and apparatus for mobile communications using a CDMA (code division multiple access) system
04/17/1997WO1997014265A1 Arrangement and method relating to communications systems
04/17/1997WO1997014235A1 Confidence and frame signal quality detection in a soft decision convolutional decoder
04/17/1997WO1997014234A2 Point-to-point internet protocol
04/17/1997WO1997014231A1 Communication transceiver providing unscheduled acknowledge back responses
04/17/1997WO1997014225A1 A coding system and method providing unequal error protection by puncturing less significant symbols
04/17/1997WO1997004543A3 Allocated and dynamic switch flow control
04/17/1997CA2234161A1 Arrangement and method relating to communications systems
04/17/1997CA2233289A1 A coding system and method providing unequal error protection by puncturing less significant signals
04/16/1997EP0768806A2 Data protocol for transport of ATM cells over a wireless link
04/16/1997EP0768631A1 A remote control system
04/16/1997EP0767994A1 Adaptive sectorization in a spread spectrum communication system
04/16/1997EP0767976A1 Phased array spread spectrum system and method
04/16/1997EP0767945A2 Wireless communication system for reliable communication between a group of apparatuses
04/16/1997EP0632947A4 Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization.
04/16/1997CN1147887A Testing device for GMSK communication device
04/16/1997CN1147886A Unit changeover in a node forwarding packet data
04/16/1997CN1147883A Method of error protected transmission, method of error protected reception of data and transmission system for transmission of data
04/15/1997US5621767 Method and device for locking on a carrier signal by dividing frequency band into segments for segment signal quality determination and selecting better signal quality segment
04/15/1997US5621764 Soft decision signal outputting receiver
04/15/1997US5621758 PWM Communication system
04/15/1997US5621752 Adaptive sectorization in a spread spectrum communication system
04/15/1997US5621737 Communication system with link margin control and method
04/15/1997US5621722 Method and circuit arrangement for disturbance-free redirection of a message cell stream onto an alternate route
04/10/1997WO1997013388A1 System and method for flexible coding, modulation, and time slot allocation in a radio telecommunications network
04/10/1997WO1997013378A2 Apparatus and method for determining and using channel state information
04/10/1997WO1997013353A1 Communication system and method
04/10/1997WO1997013327A1 Viterbi co-processor and method of operation therefor
04/10/1997WO1997013292A1 Burst-error resistant atm microwave link and network
04/10/1997CA2233723A1 Apparatus and method for determining and using channel state information
04/09/1997EP0767570A2 Equalization of speech signal in mobile phone
04/09/1997EP0767546A2 Method and apparatus for providing time diversity using multiple base stations
04/09/1997CN1147321A Direct sequence CDMA coherent upline detector
04/09/1997CN1147320A Bad frame detection
04/09/1997CN1147187A Control signal detection method with calibration error and subscriber unit therewith
04/08/1997US5619689 Method and apparatus for confirming delivery of files in a file broadcast system with rebroadcast timing at the receiver
04/08/1997US5619641 Signal processing apparatus including redundant first and second system with a duplex package configuration
04/08/1997US5619550 Testing within communication systems using an arq protocol
04/08/1997US5619532 Digital communication system
04/08/1997US5619516 Efficient CRC remainder coefficient generation and checking device and method
04/08/1997US5619509 Apparatus and methods for testing transmission equipment and a self-test method
04/08/1997US5619503 Cellular/satellite communications system with improved frequency re-use
04/08/1997US5619167 Maximum likelihood decoding coherent detection method
04/03/1997WO1997012491A1 Temporary equipment identifier message notification method
04/03/1997WO1997012476A1 Method and apparatus for reduced power consumption in a mobile packet data communication system
04/03/1997WO1997012323A1 Apparatus and method employing a window reset for excessive bit error rate alarm detection and clearing
04/03/1997WO1997009789A3 Transmitter and receiver apparatus, method for transmitting and method for receiving and record carrier obtained by the method or the transmitter apparatus
04/03/1997WO1997003549A3 Prioritized access to shared buffers
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