| Patents for H04L 1 - Arrangements for detecting or preventing errors in the information received (103,402) |
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| 09/05/1991 | WO1991013503A1 Guaranteed reliable broadcast network |
| 09/05/1991 | WO1991013496A1 Error-correcting encoding and decoding system |
| 09/03/1991 | US5046182 Code points for transferring data from a network transmission medium to a station on the network |
| 09/03/1991 | US5046069 Data integrity securing means |
| 08/28/1991 | EP0443997A1 A method of reducing the influence of fading of a Viterbi-receiver having at least two antennas |
| 08/28/1991 | EP0443753A1 Method and apparatus for producing order independent signatures for error detection |
| 08/28/1991 | EP0443103A2 Connection unit for domestic system |
| 08/28/1991 | EP0443061A1 Method for adapting block-length when transmitting serial datas, with transmission quality measuring method and preferred use of the method |
| 08/28/1991 | CN1054156A Method of reducing influence of fading of viterbi receiver having at least two antennas |
| 08/27/1991 | US5043989 Terminal adapter having a multiple HDLC communication channels receiver for processing control network management frames |
| 08/21/1991 | EP0441843A1 Guaranteed reliable broadcast network |
| 08/20/1991 | US5042082 Mobile assisted handoff |
| 08/20/1991 | CA1287897C Multipoint data communication with a supervisory system for detecting a malfunctioning remote station |
| 08/14/1991 | EP0441731A1 Method of data broadcasting using time-frequency interleaving and coherent demodulation |
| 08/14/1991 | EP0441730A1 Method of data broadcasting with time-frequency interleaving, using frequency reference signals |
| 08/14/1991 | EP0441041A2 Method and apparatus for generating a 48-bit frame check sequence |
| 08/13/1991 | US5040181 Non-intrusive diagnostic system for a digital modem transmission channel, including an A/D converter clocked at a multiple of the symbol rate |
| 08/13/1991 | US5040175 Wireless information transmission system |
| 08/07/1991 | EP0440186A1 Signal control apparatus capable of readily changing an apparatus output signal |
| 08/07/1991 | EP0439925A2 Maximum likelihood decoding with interference detection for frequency-hopped coded modulation systems |
| 08/07/1991 | CA2035637A1 Method and apparatus for generating a 48-bit frame check sequence |
| 08/01/1991 | DE4005087C1 Connector unit for domestic power installation - has adaptor for specific function allowing data transmission via bus and data lines |
| 07/30/1991 | US5036518 Guaranteed reliable broadcast network |
| 07/30/1991 | US5036515 Bit error rate detection |
| 07/25/1991 | WO1991011065A1 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions |
| 07/25/1991 | CA2074169A1 Method of and apparatus for controlling modulation of digital signals in frequency modulated transmissions |
| 07/24/1991 | EP0242367B1 Asynchronous communication system |
| 07/23/1991 | US5034997 Communication system for data transmission and reception using radio wave and optical transmission of message signals |
| 07/23/1991 | US5034966 Redundant and fault tolerant communication link |
| 07/16/1991 | CA1286391C Signaling arrangement |
| 07/11/1991 | WO1991010303A1 Data error detection in data communications |
| 07/11/1991 | WO1991010302A1 Data input control device for serial controller |
| 07/11/1991 | WO1991010301A1 Error display device of data transmission system |
| 07/11/1991 | WO1991010295A1 Receiver for a digital radiomobile system with cancellation of isofrequency interfering signals having the same kind of modulation, and relevant method |
| 07/10/1991 | EP0436251A2 Coder/decoder for digital signals to be transmitted and/or stored |
| 07/10/1991 | EP0436201A1 Method for searching for alternate path in communication network |
| 07/10/1991 | EP0436101A2 Maximum-likelihood sequence estimation apparatus |
| 07/10/1991 | CN1013163B Synchronizing and error control method and equipment for multi-channel long distant serial synchronous telecommunications |
| 07/09/1991 | US5031193 Method and apparatus for diversity reception of time-dispersed signals |
| 07/09/1991 | US5031179 Data communication apparatus |
| 07/09/1991 | CA1286041C Tdma communication system having common time slots for system maintenance |
| 07/09/1991 | CA1285994C Acknowledge back pager with apparatus for controlling transmit frequency |
| 07/03/1991 | EP0435507A2 Interleaving in coded modulation for mobile radio |
| 07/02/1991 | US5029331 Method for editing a convolutional code for transmission and its reconversion at the receiver as well as a device therefor |
| 07/02/1991 | US5029185 Coded modulation for mobile radio |
| 07/02/1991 | US5029183 Packet data communication network |
| 06/30/1991 | WO1991010289A1 Transmitting encoded data on unreliable networks |
| 06/26/1991 | EP0434228A1 Data communications system |
| 06/26/1991 | EP0434040A2 Maximum likelihood sequence estimation apparatus |
| 06/26/1991 | EP0433458A1 System for removing circuit signal deterioration |
| 06/25/1991 | US5027374 Bit serial Viterbi decoder add/compare/select array |
| 06/25/1991 | US5027371 Self-adaptive equalizer circuit for a differentially coherent demodulation installation |
| 06/25/1991 | US5027356 Error control system |
| 06/25/1991 | US5027343 Remote test access system for ISDN testing |
| 06/25/1991 | US5026702 Morpholines and morpholine-N-oxides and pharmaceutical compositions containing these compounds |
| 06/23/1991 | CA2025307A1 Fading bit error protection for digital cellular multi-pulse speech coder |
| 06/18/1991 | US5025444 Communications error detection system |
| 06/18/1991 | CA1285074C Data error detection circuit |
| 06/13/1991 | WO1991008634A1 Process for bit-oriented data transmission |
| 06/11/1991 | US5023889 Trellis coded multilevel DPSK system with doppler correction for mobile satellite channels |
| 06/11/1991 | US5023872 FDDI bit error rate tester |
| 06/11/1991 | US5023612 Illegal sequence detection and protection circuit |
| 06/08/1991 | WO1991009482A1 Error rate monitor |
| 06/08/1991 | CA2070834A1 Error rate monitor |
| 06/06/1991 | DE3940097A1 Verfahren zur bitorientierten datenuebertragung A method for bit-oriented data transmission |
| 06/05/1991 | EP0430481A2 Method and apparatus for diversity reception of time-dispersed signals |
| 06/05/1991 | EP0430213A2 A multimedia protocol interface for 64 Kbit/s data flow |
| 06/05/1991 | EP0430126A1 Method and device for digital information transmission with automatic retransmission request, or "ARQ" |
| 06/05/1991 | EP0430125A1 Method and installation for automatic retransmission requests in digital duplex transmission installations with at least one noisy return path |
| 06/05/1991 | EP0430052A2 Code points for transferring data from a network transmission medium to a station on the network |
| 06/05/1991 | CN1052014A Method and apparatus for diversity reception of time-dispersed signals |
| 06/04/1991 | US5022024 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 06/04/1991 | US5021683 Circuit arrangement comprising two parallel branches for transmitting a binary signal |
| 06/04/1991 | CA2004503A1 Dynamic equalization for partial response channels |
| 05/28/1991 | US5020132 Processor-to-processor communications protocol for a public service trunking system |
| 05/28/1991 | US5020056 Reduction of synchronous fading effects by time hopping of user slots in TDMA frames |
| 05/28/1991 | US5020054 Packet format including unique network identity |
| 05/28/1991 | US5019960 Master-slave signal transfer system for elevator |
| 05/22/1991 | EP0428199A2 Receiver for digital communication system with channel estimator |
| 05/21/1991 | US5018114 Adjustable frequency diversity acoustic communications system |
| 05/16/1991 | WO1991007038A2 Method and apparatus for effecting efficient transmission of data |
| 05/16/1991 | WO1991007036A1 Diversity receiver in a cdma cellular telephone system |
| 05/14/1991 | WO1991007829A1 Method and apparatus for diversity reception of time-dispersed signals |
| 05/14/1991 | US5016244 Method for controlling failover between redundant network interface modules |
| 05/02/1991 | DE3934045A1 Secure data transmission with specified Hamming distance - inserting 01 or 10 bit trains on transmit side at positions agreed with receiver |
| 04/30/1991 | US5012493 Phase difference-adjusting circuit |
| 04/30/1991 | US5012442 Bus receiver power-up synchronization and error detection circuit |
| 04/30/1991 | CA1283726C Switching arrangement with automatic data alignment over a + 3.5-bit range |
| 04/24/1991 | WO1991006166A1 Digital demodulator |
| 04/24/1991 | EP0423485A1 Method and device for bidirectional transmission of data |
| 04/24/1991 | CN1050959A Data receiver interface circuit |
| 04/23/1991 | US5010554 Error correction method and apparatus |
| 04/23/1991 | US5010553 High speed, error-free data transmission system and method |
| 04/23/1991 | CA1283455C Apparatus and method for transmitting digital data over a radio communications channel |
| 04/17/1991 | EP0422802A1 Speech codec arrangement |
| 04/17/1991 | CN1012411B Channel switching system |
| 04/16/1991 | US5008953 Mobile station link supervision utilizing digital voice color codes |
| 04/16/1991 | CA1283228C Multiplex transmission system |
| 04/13/1991 | CA2026924A1 Speech codec arrangement |
| 04/09/1991 | US5007067 Diversity coding for transparent self-healing communications networks |