Patents
Patents for H04L 1 - Arrangements for detecting or preventing errors in the information received (103,402)
03/1995
03/01/1995EP0641101A2 Digital communications system with symbol multiplexers
03/01/1995EP0574523A4 Variable bit rate speech encoder.
03/01/1995CN1099544A 通信系统 Communications systems
02/1995
02/28/1995US5394436 Multi-hop data communication network
02/28/1995US5394410 Differentially coded and guard pulse position modulation for communication networks
02/28/1995US5394407 Circuit for use with a data processing system
02/28/1995US5394406 Data communication apparatus
02/28/1995US5394145 Performance monitoring for loops
02/23/1995DE4327777C1 Method and system for transmitting signals
02/22/1995EP0639913A1 Apparatus for resolving phase ambiguities in a DPSK radio link
02/21/1995US5392352 Scramble detecting circuit in a satellite broadcasting receiver and scramble detecting method
02/21/1995US5392314 Process for determining the quality parameters of transmission link for digital data streams having a cellular structure
02/21/1995US5392300 Dual mode radio communication unit
02/21/1995US5392299 Triple orthogonally interleaed error correction system
02/21/1995US5392284 Multi-media communication device
02/21/1995US5392283 Data communication protocol
02/21/1995US5391387 Process and apparatus for manufacturing shaped confectionery products
02/15/1995EP0638811A2 Estimator of amplitude and frequency of a noisy biased sinusoid from short bursts of samples
02/14/1995US5390365 Radio communication apparatus having a received signal strength measuring function
02/14/1995US5390215 Multi-processor demodulator for digital cellular base station employing partitioned demodulation procedure with pipelined execution
02/14/1995US5390199 Advanced code error detection apparatus and system using maximal-length pseudorandom binary sequence
02/14/1995US5390197 Vestigial identification for co-channel interference in cellular communications
02/14/1995US5390195 Miller-squared decoder with erasure flag output
02/14/1995US5390163 Data exchange capable of minimizing loss of a data block
02/14/1995CA2035203C Signal control apparatus capable of readily changing an apparatus output signal
02/14/1995CA2030510C Maximum-likehood sequence estimation apparatus
02/09/1995WO1995004421A1 Packet delivery system
02/09/1995WO1995004414A1 Method and apparatus for performing error correction on a signal received by a radio communication device
02/08/1995EP0637892A2 System and method for transmitting images at high efficiency
02/08/1995EP0637881A2 Programmable error-checking matrix for digital communication system
02/08/1995EP0637879A1 Hitless switching apparatus and method for optical network
02/08/1995EP0390920B1 Series controller
02/07/1995US5387906 Signal receiving control system of a remote control device
02/02/1995WO1994028968A3 Method and apparatus for communicating data between medical devices to improve detectability of errors
02/02/1995DE4324292C1 Method for determining a quantity characterising the quality of digital speech transmission
02/01/1995EP0637184A2 Maintenance of a TDM switching network
02/01/1995EP0637150A1 A 1200 bit per second fallback method for use in mobile radio
02/01/1995EP0636291A1 Coordinated coding for digital transmission
02/01/1995EP0636001A1 Process and apparatus for manufacturing shaped confectionery products
02/01/1995EP0554290B1 Method of detecting errors in the transmission of frequency-coded digital signals
02/01/1995EP0341256B1 Modem and method using multidimensional coded modulation
01/1995
01/31/1995US5386589 Transmission power control system capable of keeping signal quality constant in mobile communication network
01/31/1995US5386495 Method and apparatus for determining the signal quality of a digital signal
01/31/1995US5386424 Apparatus and method for transmitting information between dual redundant components utilizing four signal paths
01/31/1995US5386420 Coding method for correction and detection of skewed transitions in parallel asynchronous communication systems
01/31/1995US5386212 Double buffer scheme for variable length decoder
01/31/1995US5386202 Data communication modulation with managed intersymbol interference
01/27/1995CA2127766A1 1200 bit per second fallback method for use in mobile radio
01/25/1995EP0635952A1 Data transmission system with automatic repeat request (ARQ)
01/25/1995EP0635949A1 Method for determining the optimal length of a data block in a time division multiple access (TDMA) communications system
01/25/1995EP0624275A4 Method and system for the arrangement of vocoder data for the masking of transmission channel induced errors.
01/24/1995US5384809 Error control coding arrangement for digital communications system
01/24/1995US5384793 Fading and random pattern error protection method for dynamic bit allocation sub-band coding
01/24/1995US5384782 Digital radio receiver with decoding of confidence level information substituted for interleaved data
01/24/1995US5384773 Multi-media analog/digital/optical switching apparatus
01/24/1995US5384565 Method and apparatus for identifying duplicate data messages in a communication system
01/24/1995US5384560 Maximum likelihood sequence metric calculator
01/19/1995WO1995002287A1 Mobile radio aerial installation
01/18/1995EP0634840A1 Unequal error protection for combined information signals
01/18/1995EP0621998A4 Method and apparatus for the formatting of data for transmission.
01/18/1995EP0532717A4 Multimedia high speed network
01/17/1995US5383219 Fast forward link power control in a code division multiple access system
01/17/1995US5383203 Compact device for correcting a header error in ATM cells
01/17/1995US5383202 Simplified method of attenuation of logarithmically coded digital signals
01/17/1995US5383177 Packet switching testing method and apparatus
01/17/1995CA2055450C Bit error rate detection
01/17/1995CA2023715C Digital signal quality evaluation circuit using synchronization patterns
01/12/1995WO1995001683A1 Method and apparatus for detecting cyclic code
01/12/1995WO1995001682A1 Pcm link fault detection and lost block handling
01/12/1995CA2142903A1 Pcm link fault detection and lost block handling
01/11/1995EP0633671A2 A multiple access radio system
01/11/1995EP0632947A1 Method and apparatus of adaptive maximum likelihood sequence estimation using filtered correlation synchronization
01/11/1995EP0632946A1 Buffer allocation to repeated information blocks in data transmission, particularly video transmission
01/11/1995EP0632911A1 Error detector circuit for receiver operative to receive discretely-encoded signals
01/10/1995US5381449 Peak to average power ratio reduction methodology for QAM communications systems
01/07/1995CA2126743A1 Programmable error-checking matrix for digital communication system
01/05/1995WO1995001035A1 Digital radio communication equipment
01/05/1995WO1995001032A1 Method and apparatus for determining the data rate of a received signal
01/05/1995WO1995001018A1 Receiver for a direct sequence spread spectrum orthogonally encoded signal employing rake principle
01/05/1995WO1995001008A1 Bit error counting method and counter
01/05/1995DE4318977A1 Method for exploiting the interference correlation in digital signal transmission
01/04/1995EP0632661A1 System for receiving and decoding digital signals according to two image definition levels
01/04/1995EP0632613A1 Method and apparatus for data recovery in a radio communication system
01/04/1995EP0632612A1 Error detection method using convolutional code and viterbi decoding
01/04/1995EP0632604A1 Method and apparatus for baseband signal combining and clock timing recovery using a constant modulus algorithm
01/04/1995EP0631703A1 Efficient crc remainder coefficient generation and checking device and method
01/03/1995US5379324 System and method for calculating channel gain and noise variance of a communication channel
01/03/1995US5379278 In a local area network system
01/03/1995CA2030038C Coded modulation for mobile radio
12/1994
12/28/1994EP0631412A2 Method and apparatus for the transmission of ATM packets
12/28/1994EP0631410A2 Interactive communication method for home automation
12/28/1994EP0631409A2 Multipoint to point radiocommunications network
12/28/1994EP0631399A1 Method and apparatus for interference cancellation and adaptive equalisation in diversity reception
12/28/1994EP0631396A2 Real-time convolutional decoder with block synchronising function
12/28/1994CN1027213C System and method for calculating channel gain and noise variance of a communication channel
12/27/1994US5377208 Transmission system with random error and burst error correction for a cyclically coded digital signal
12/27/1994US5377204 Error display system
12/27/1994US5377188 Communication system capable of detecting missed messages
12/26/1994CA2126374A1 Real-time convolutional decoder with block synchronizing function
12/22/1994WO1994029983A1 Performance monitoring and failure isolation in a point-to-multipoint communication network