Patents
Patents for H04L 1 - Arrangements for detecting or preventing errors in the information received (103,402)
06/1996
06/19/1996EP0716790A1 Information transmission system and method of operation
06/19/1996CN1032099C System of communication
06/18/1996US5528754 Communication controlling apparatus
06/18/1996US5528635 Synchronization detecting circuit
06/18/1996US5528606 For coding digital data
06/18/1996US5528605 Delayed acknowledgement in an asymmetric timer based LAN communications protocol
06/18/1996US5528599 Method and apparatus of combining signals in a digital pipelined signal adder
06/18/1996US5528581 Diversity transmission system for sub-band diversity reception
06/13/1996WO1996018277A1 Up link macro diversity method and apparatus in a digital mobile radio communication system
06/13/1996WO1996018248A2 High-speed data transmission in mobile communication networks
06/12/1996EP0716527A1 Maximum likelihood decoding and synchronous detecting method
06/12/1996EP0716513A1 Diversity receiver in which reception characteristics can be improved
06/12/1996EP0527819B1 A high frequency multichannel diversity differential phase shift (dpsk) communications system
06/12/1996EP0416081B1 Programmable error correcting apparatus within a paging receiver
06/12/1996CN1124553A Time diversity communication system
06/11/1996US5526410 Method and system for determination of signal/noise ratio of telephone transmission line used for facsimile transmission
06/11/1996US5526399 Data transmission method and apparatus of mobile radiocommunication system
06/11/1996US5526383 Network control system for controlling relative errors between network nodes
06/11/1996US5526370 Weighted sum codes for error detection
06/11/1996US5526368 Method for receiving calling data even if missing a predetermined code in a paging receiver
06/11/1996US5526367 Data communication apparatus
06/11/1996US5526366 Speech code processing
06/11/1996US5526362 Control of receiver station timing for time-stamped data
06/11/1996US5526286 Oversampled logic analyzer
06/06/1996WO1996017454A1 Method and apparatus for testing a digital communication channel at variable or fixed data rates
06/06/1996WO1996017439A1 Cyclic trellis coded modulation
06/06/1996CA2203899A1 Cyclic trellis coded modulation
06/05/1996EP0715481A1 Communication system, base station, mobile station, and radio communication system
06/05/1996EP0715434A1 Detection device for presence of a digitally modulated carrier
06/05/1996EP0715433A2 System and method for wireless communication by way of repeatedly transmitted messages
06/05/1996EP0715432A2 Interleaver and address generator for mobile communication systems
06/05/1996EP0715431A2 Asymmetric speech coding for a digital cellular communications system
06/05/1996EP0715430A1 Transmission system with error correcting coding using parity codes
06/05/1996EP0715416A2 System and method deinterleaving digital data
06/05/1996EP0714575A1 Method and apparatus for creating a composite waveform
06/05/1996DE4442613A1 Mobile radio communications network quality monitoring system
06/05/1996DE19506109C1 Pulse response estimation for transmission channel
06/05/1996CN1124075A A cellular/satellite communications system with improved frequency re-use
06/05/1996CN1124074A A method and apparatus for locating a digital control channel in a radiocommunication system
06/05/1996CN1123980A Asymmetric protocol for wireless communications
06/04/1996US5524125 Interference cancellation apparatus capable of adaptive equalization and interference cancellation at a high speed on fading diversity channels
06/04/1996US5524122 System and method for adapting the transmission rate to the line quality and modem suitable for such a system
06/04/1996US5524116 Packet framer
06/04/1996US5524106 Apparatus for testing an ATM type telecommunications network and for measuring the performance of an ATM connection
06/04/1996US5524029 Network control system for controlling relative errors between network nodes
06/04/1996US5524023 Interference cancellation using power-inversion adaptive array and LMS adaptive equalizer
06/03/1996CA2164070A1 Device for detecting the presence or the absence of a digitally modulated carrier, anad related receiver and process
05/1996
05/30/1996WO1996016496A2 Trellis coded 16 star qam with reed-solomon coding
05/30/1996WO1996016483A2 A system for decoding digital data using a variable decision depth
05/30/1996DE19509602C1 Redundancy optimised line network for ATM cells and SDH containers
05/30/1996CA2205602A1 A system for decoding digital data using a variable decision depth
05/29/1996EP0714221A1 Transmission system for data cells in a local network
05/29/1996EP0714188A1 Method for determining a caracteristic quality parameter of a digital speech transmission
05/29/1996CN1123490A resynchronizing device of decoder for correcting wron code
05/28/1996US5522042 Distributed chassis agent for distributed network management
05/28/1996US5522039 Calculation of network data check sums by dedicated hardware with software corrections
05/28/1996US5521370 Pistol grip hand-held data terminal cooperable with communicating and recharging dock
05/23/1996WO1996015602A1 Process for transmitting messages from a secondary control system to a primary control system
05/23/1996WO1996009704A3 Detection of defective speech frames in a receiver of a digital speech communication system
05/23/1996WO1996008908A3 Wireless telephone distribution system with time and space diversity transmission
05/23/1996DE19513318C1 Operation of asynchronous redundant serial bus for duplex transmission
05/22/1996EP0713305A1 Data rate detector for terminal station
05/22/1996EP0713303A2 System for detecting non-coincidence of codes
05/22/1996EP0713302A2 Adaptive forward error correction system using block codes
05/21/1996US5519830 Point-to-multipoint performance monitoring and failure isolation system
05/21/1996US5519730 Communication signal having a time domain pilot component
05/21/1996US5519727 Adaptive equalizer
05/21/1996US5519709 Two priority fair distribution round robin protocol for a network having cascaded hubs
05/21/1996US5519625 System for characterizing phase-modulated signals using a time interval analyzer
05/21/1996US5519385 Circuit for switching signal processing circuits
05/15/1996EP0712258A2 Apparatus for testing mobile radio communication stations
05/15/1996EP0712223A2 Method of transmitting digital data
05/15/1996EP0712219A2 Variable transmission bit rate discrimination method and apparatus
05/14/1996US5517522 Process for detecting the nature of data-falsifying interference
05/14/1996US5517518 Method and arrangement for recognition of a coded transmitted signal
05/14/1996US5517512 Cyclic coding and cyclic redundancy code check processor
05/14/1996US5517511 Digital transmission of acoustic signals over a noisy communication channel
05/14/1996US5517510 In a forward error correction encoder
05/14/1996US5517508 Method and apparatus for detection and error correction of packetized digital data
05/14/1996US5517507 Notification by energy burst of messages with unacceptable quality
05/14/1996US5517489 Synchronous digital hierarchy 2-fiber ring having a selective protection function
05/14/1996US5517434 Data capture system with communicating and recharging docking apparatus and hand-held data terminal means cooperable therewith
05/10/1996CA2162331A1 Telecommunications terminal test device, particularly for mobile radiocommunications, and terminal testable by said device
05/09/1996WO1996013914A2 Sectorized communication system and methods useful therefor
05/09/1996WO1996013906A1 Method and system for data communication, using a m-ary modulation scheme and inleaving means
05/09/1996WO1996013905A1 Digital transmission and recording system with simple error correction
05/09/1996CA2200978A1 Sectorized communication system and methods useful therefor
05/08/1996EP0711056A2 Transmission bit rate discrimination method and apparatus
05/07/1996US5515429 Backup apparatus against line defect and backup method against line defect
05/07/1996US5515418 Automatic circuit back-up system
05/07/1996US5515404 Data communication systems
05/07/1996US5515401 Network control system for controlling relative errors between network nodes
05/07/1996US5515398 Modem line probing signal techniques
05/07/1996US5515396 Method and apparatus for selecting a spreading code in a spectrum spread communication system
05/07/1996US5515380 Reducing errors in digital communication
05/07/1996US5515362 Digital signal transmission apparatus
05/07/1996US5515303 Hand-held computerized data collection terminal with rechargeable battery pack sensor and battery power conservation
05/07/1996US5515197 Coherent optical multichannel receiver
05/02/1996WO1996013105A1 Transmission system with soft output decoding and reduced storage capacity requirement
05/02/1996WO1996013102A1 Method and apparatus for fast fourier transform based maximal ratio combining