Patents for H04L 1 - Arrangements for detecting or preventing errors in the information received (103,402) |
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06/08/1993 | CA2013158C Error correction method and apparatus |
06/03/1993 | DE4138937A1 Data transmitter testing device - provides simulated interface with physical and logical parameters for several different transmission characteristics |
06/02/1993 | EP0544463A2 Coded modulation, with unequal error protection, for fading channels |
06/02/1993 | EP0544315A2 Maximum likelihood sequence estimation apparatus |
06/02/1993 | EP0543907A1 Method of recovering lost bits in digital transmission. |
06/01/1993 | US5216697 Signal quality detector circuit |
06/01/1993 | US5216675 Reliable broadcast protocol |
06/01/1993 | US5216674 Method of and device for bringing a network interface out of a sleep mode into a wake-up state |
06/01/1993 | CA2006829C Self-adaptive equalizer circuit for a differentially coherent demodulation installation |
05/28/1993 | CA2073560A1 Multi-media serial line switching adapter for parallel networks and heterogenous and homologous computer systems |
05/26/1993 | EP0543554A1 Viterbi decoding apparatus |
05/26/1993 | EP0543549A2 Data decoding device |
05/26/1993 | EP0543139A1 Jitter analyzer |
05/25/1993 | US5214687 Method to determine transmission quality |
05/25/1993 | US5214675 System and method for calculating channel gain and noise variance of a communication channel |
05/25/1993 | US5214656 Multiplexed coded modulation with unequal error protection |
05/25/1993 | US5214637 High speed two wire modem |
05/25/1993 | US5214391 Demodulation apparatus having multipath detector for selecting a first or second demodulator |
05/18/1993 | US5212724 Processor-to-processor communications protocol for a public service trunking system |
05/18/1993 | US5212714 High speed data interface for land mobile communication system |
05/18/1993 | US5212713 Fault location arrangement for digital transmission systems |
05/18/1993 | US5212689 Method of transmitting different commands relating to the choice of transmitter antenna in a time multiplex radio communications system |
05/18/1993 | US5212475 Method for generating an alarm inhibit signal |
05/13/1993 | WO1993009619A1 Peak to average power ratio reduction methodology for qam communications systems |
05/13/1993 | WO1993009618A1 Communication system utilizing self-similar signals |
05/12/1993 | EP0541161A2 Transmission system for correcting individual or bundle errors of a cyclic coded digital signal |
05/12/1993 | EP0540764A1 Demodulator unit arranged to check for system failures during operation |
05/12/1993 | CN1072048A Communication signal having time domain pilot component |
05/11/1993 | US5210760 Optimized pointer control system |
05/11/1993 | US5210754 Pattern synchronizing circuit |
05/11/1993 | US5210751 Signal transmission system capable of performing re-transmission control in units of slots |
05/07/1993 | CA2055012A1 Free space local area network system |
05/05/1993 | EP0540232A2 Coded modulation with unequal error protection |
05/05/1993 | EP0540177A2 Information transmission method and apparatus |
05/05/1993 | EP0540007A2 Method and apparatus for transmitting data blocks with parity and synchronizing blocks |
05/05/1993 | EP0539473A1 Error protection for vlc coded data |
05/04/1993 | US5208666 Error detection for digital television equipment |
04/29/1993 | WO1993009622A1 Communication signal having a time domain pilot component |
04/28/1993 | EP0539200A2 Error detection for digital television equipment |
04/28/1993 | EP0538466A1 A system for echo cancellation comprising a ghost cancellation reference signal |
04/28/1993 | EP0532503A4 Cable television radio frequency subscriber data transmission apparatus and calibration method |
04/27/1993 | US5206863 Processor-to-processor communications protocol for a public service trunking system |
04/27/1993 | CA1317040C Repeater for regenerating frame-multiplexed signal |
04/27/1993 | CA1316984C Error correction method for multicarrier radio transmission system |
04/26/1993 | CA2079501A1 Error detection for digital television equipment |
04/22/1993 | DE4230521A1 Viterbi decoder with computer for input data branching - operates by majority logic on content of max. likelihood path obtd. from add-compare-select calculator. |
04/22/1993 | DE4229654A1 Audio and video signal transmission with error correction - protects data groups with bit quantity fluctuating between frames by sorting data bits w.r.t. their importance and distributing bit groups homogeneously within frame |
04/21/1993 | CN1020364C Data and forward error control coding techniques for digital signals |
04/20/1993 | US5204981 Interference elimination system |
04/20/1993 | US5204876 Method and apparatus for providing high data rate traffic channels in a spread spectrum communication system |
04/15/1993 | WO1993007691A1 A radio frequency local area network |
04/15/1993 | CA2120520A1 A radio frequency local area network |
04/14/1993 | EP0536334A1 System and method for generating signal waveforms in a cdma cellular telephone system |
04/14/1993 | CN1071036A Variable rate vocoder |
04/13/1993 | US5203026 Method of selecting the most suitable receiver antenna from two or more receiver antennas |
04/13/1993 | US5203024 Antenna selection diversity reception system |
04/13/1993 | US5203018 Space diversity system switching transmission |
04/13/1993 | US5202903 Noise-immune space diversity receiver |
04/13/1993 | US5202817 Hand-held data capture system with interchangeable modules |
04/13/1993 | CA1316276C Multiplex transmission system |
04/07/1993 | EP0535812A2 TDMA burst-mode mobile radio communication system with forward error correction |
04/07/1993 | EP0535435A2 A circuit and method for receiving and transmitting control and status information |
04/07/1993 | EP0535396A1 Method for the reduction of bit errors in a digital communication system |
04/07/1993 | CN1070780A Extended error correction of transmitted data message |
04/06/1993 | US5201071 Method and apparatus for reducing the peak envelope voltage of an RF transmitter while maintaining signal average power |
04/06/1993 | US5200962 Data compression with error correction |
04/06/1993 | US5200957 Mobile assisted handoff |
04/06/1993 | US5200949 Link changeover control system for local area network of broadcasting arrangement |
04/01/1993 | WO1993006665A1 Isdn 's' signal detection and display apparatus |
04/01/1993 | WO1993006550A1 Viterbi decoder bit efficient chainback memory method and decoder incorporating same |
03/30/1993 | US5199061 Communication method and equipment for freeze-frame video phone |
03/30/1993 | US5199047 Receiver for a digital transmission system |
03/30/1993 | CA1315340C Control of optical systems |
03/25/1993 | DE4231163A1 Fehlertolerantes mehrstations-uebertragungssystem A fault-tolerant more stations-transmission system |
03/24/1993 | EP0532717A1 Multimedia high speed network |
03/24/1993 | EP0532504A1 Cable television radio frequency data processor. |
03/24/1993 | EP0532503A1 Cable television radio frequency subscriber data transmission apparatus and calibration method. |
03/23/1993 | US5197083 Multimedia protocol interface for 64 kbit/s data flow |
03/23/1993 | US5197061 Device for the transmission of digital data with at least two levels of protection and corresponding reception device |
03/21/1993 | WO1993006671A1 Extended error correction of a transmitted data message |
03/20/1993 | CA2078646A1 Fault tolerant multi-drop communications system |
03/17/1993 | EP0532130A2 Data communication apparatus |
03/17/1993 | EP0334867B1 Duplex data transmission |
03/16/1993 | US5195098 Binary data error correction using hint signal |
03/16/1993 | US5195093 Method and apparatus for ensuring CRC error generation by a data communication station experiencing transmitter exceptions |
03/11/1993 | CA2076061A1 Method of forming a channel estimate for a time-varying radio channel |
03/10/1993 | EP0530633A2 Intelligent interconnects for broadband optical networking |
03/10/1993 | EP0530339A1 Method for identifying a supervising signal at a base station of a mobile telephone system. |
03/09/1993 | US5193093 Data transfer process with loop checking |
03/08/1993 | CA2076290A1 Radio receiver and transmitter providing diversity |
03/03/1993 | EP0529909A2 Error correction encoding/decoding method and apparatus therefor |
03/03/1993 | EP0529718A1 Digital signal transmission system using concatenated codes and receiver and decoder used for this system |
03/03/1993 | EP0529602A2 Differential receiver which is tolerant of line faults |
03/03/1993 | EP0529316A1 Room temperature control device |
03/03/1993 | EP0529051A1 Method and apparatus for providing high data rate traffic channels in a spread spectrum communication system |
03/02/1993 | US5191598 System for reducing the affects of signal fading on received signals |
03/02/1993 | US5191585 Computer networking method |
03/02/1993 | US5191583 Method and apparatus for effecting efficient transmission of data |
03/02/1993 | US5191576 Method for broadcasting of digital data, notably for radio broadcasting at high throughput rate towards mobile receivers, with time frequency interlacing and analog synchronization |
02/24/1993 | EP0528370A2 Frame length control in data transmission using ATM network |