| Patents for H04L 1 - Arrangements for detecting or preventing errors in the information received (103,402) |
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| 06/13/1984 | EP0110354A2 Detecting improper operation of a digital data processing apparatus |
| 06/13/1984 | EP0110352A2 Digital information transmitting system and digital information receiving apparatus |
| 06/12/1984 | US4454601 Method and apparatus for communication of information and error checking |
| 06/05/1984 | US4453249 System for binary data transmission |
| 05/30/1984 | EP0109602A1 Fault tolerable redundancy control |
| 05/29/1984 | CA1168365A1 Error control in a hierarchical system |
| 05/29/1984 | CA1168311A1 Digital transmission systems |
| 05/15/1984 | US4449247 Local orderwire facility for fiber optic communication system |
| 05/15/1984 | US4449222 Digital modulation quality monitor |
| 05/15/1984 | US4449102 Adaptive threshold circuit |
| 05/15/1984 | CA1167543A1 Data set network diagnostic system |
| 05/15/1984 | CA1167542A1 Data set diagnostic system |
| 05/10/1984 | WO1984001867A1 Method and apparatus for transmitting and receiving data messages |
| 05/09/1984 | EP0108028A1 Synchronisation system of a digital packet multiplex |
| 05/08/1984 | US4447909 Circuit for rapid recognition of FSK signals in a radio channel |
| 05/08/1984 | US4447908 Method of transmitting binary data sequences and arrangement for enabling the rapid determination of the end of a transmitted binary data sequence |
| 05/08/1984 | US4447903 Forward error correction using coding and redundant transmission |
| 05/08/1984 | US4447902 Error-correction format for digital television signals |
| 05/08/1984 | CA1167183A1 Method and apparatus for transmitting data in an error correction format |
| 05/02/1984 | EP0107033A1 Amplitude detector for pulse-shaped signals with a high pulse repetition frequency |
| 05/01/1984 | US4446551 Data highway system with dual transmitting loop lines |
| 05/01/1984 | CA1166699A1 Space-diversity board-band digital radio receiver with amplitude dispersion detecting and suppressing means |
| 04/24/1984 | US4445221 Method and apparatus for measuring the frequency response of an element or elements in a digital transmission path |
| 04/24/1984 | US4445193 Bisynchronous host/terminal communication system with non-clock-generating modem & PLL generated clock signal |
| 04/24/1984 | CA1166349A1 Method and apparatus for evaluating recording systems |
| 04/18/1984 | EP0105513A2 Method of measuring quality of a signal received by a receiver of a two-dimensional linear modulation data communication system |
| 04/17/1984 | CA1165872A1 Method of writing and reading sector-organized information into and out of a record carrier body and device for performing the method |
| 04/10/1984 | US4442531 Method and apparatus for recognizing digital information in digital information transmission, particularly in mobil radio communications systems |
| 04/10/1984 | US4442521 Switching device for detecting interruptions in transmission lines |
| 04/10/1984 | US4442518 Channel switching system for use in a digital communication system |
| 04/04/1984 | EP0104294A1 Data transmission system |
| 04/03/1984 | US4441185 Monitoring method and device for a PCM regenerator having a code rule violation checking device |
| 04/03/1984 | CA1165000A1 System for processing audio pcm digital signals |
| 03/28/1984 | EP0103866A2 Error-correction system for two-dimensional multilevel signals |
| 03/27/1984 | US4439859 Method and system for retransmitting incorrectly received numbered frames in a data transmission system |
| 03/20/1984 | US4438511 Packetized ensemble modem |
| 03/15/1984 | WO1984001069A1 Timing delay equalization circuit |
| 03/14/1984 | EP0102782A2 Error correction in digital television signals |
| 03/13/1984 | US4437125 Digital signal processing method and apparatus |
| 03/07/1984 | EP0102225A2 Improved communications interface |
| 03/07/1984 | EP0102222A2 Loop transmission system and method of controlling its loop-back condition |
| 03/06/1984 | US4435807 Orchard error correction system |
| 03/06/1984 | US4435704 Loop transmission system |
| 03/06/1984 | CA1163384A1 Method for seizing time slots of a time-division multiplex system with dynamic multiplexers |
| 03/06/1984 | CA1163342A1 Communication subsystem with an automatic abort upon transmit underrun |
| 02/28/1984 | US4434421 For arbitration of contended digital data communications in a system |
| 02/21/1984 | US4433416 PCM Signal processor |
| 02/14/1984 | US4432094 Method for recognizing digital information transmitted in a mobile radio communication system |
| 02/14/1984 | US4432090 Automatic error correction system for teleprinter traffic with bunched repetition |
| 02/14/1984 | US4432054 Loop data transmission control method and system |
| 02/14/1984 | US4431930 Trigger circuit |
| 02/01/1984 | EP0099814A1 Device for clock frequency recovery, adapted to high frequency radio communications in noisy environments |
| 02/01/1984 | EP0099407A1 Digital system including line activity detection. |
| 01/31/1984 | US4429391 Fault and error detection arrangement |
| 01/31/1984 | US4429383 Method for seizing time slots of a time-division multiplex system with dynamic multiplexers |
| 01/31/1984 | CA1161567A2 Data transmission system |
| 01/31/1984 | CA1161564A2 Data transmission system |
| 01/31/1984 | CA1161546A1 Videotex system provided with protection means against transmission errors |
| 01/25/1984 | EP0099113A2 Interference cancellation type space diversity system |
| 01/25/1984 | EP0099112A2 Space diversity system |
| 01/24/1984 | US4428076 Method of and system for evaluating bit errors in testing a signal path |
| 01/24/1984 | US4428061 Method and apparatus for receiving carrier-borne digital signals intended to operate remotely-operable switching devices |
| 01/24/1984 | CA1161168A1 Digital code word detection |
| 01/17/1984 | CA1160710A1 Communications control device in a duplex transmission system |
| 01/11/1984 | EP0097947A2 Arrangement for generating pseudo-random sequences in the AMI code |
| 01/10/1984 | US4425645 Digital data transmission with parity bit word lock-on |
| 01/10/1984 | US4425562 Device for coding signals which are distributed between a number of channels |
| 01/04/1984 | EP0097579A1 Frequency hopping radiocommunication system with redundancy between frequency steps |
| 12/27/1983 | US4423519 Apparatus and method for detecting the onset of a frequency shift keyed signal |
| 12/27/1983 | CA1159554A1 Digital signal processing apparatus |
| 12/20/1983 | US4422171 Method and system for data communication |
| 11/30/1983 | EP0095389A2 Data transmission system |
| 11/30/1983 | EP0095165A2 Space diversity receiving system for multi-direction time division multiplex communication |
| 11/29/1983 | US4418384 Communication subsystem with an automatic abort transmission upon transmit underrun |
| 11/23/1983 | EP0094902A2 Method of locating error sources in digital systems, and scrambler/descrambler for carrying out this method |
| 11/22/1983 | CA1157522A1 Digital encoder-decoder |
| 11/16/1983 | EP0094322A1 High-rate coupler between a PCM multiplex and a packet switch |
| 11/15/1983 | US4416008 Dual loop type data highway system |
| 11/15/1983 | CA1157121A1 Effective error control scheme for satellite communications |
| 11/15/1983 | CA1157119A1 Noise margin measurement and error probability prediction |
| 11/09/1983 | EP0093648A1 Monitoring apparatus for terminal stations of a transmission channel, especially for bidirectional transmission |
| 11/08/1983 | US4414668 Apparatus for reproducing information signals recorded on a recording medium |
| 11/02/1983 | EP0093004A2 Data communication system |
| 11/01/1983 | CA1156384A1 Error monitoring in digital transmission systems |
| 10/26/1983 | EP0092216A2 Tester for coding rule violations for AMI coded digital signals |
| 10/26/1983 | EP0092215A2 Regenerator for AMI coded digital signals with a tester for coding rule violations |
| 10/25/1983 | CA1155960A1 Process and coder for the serial transmission of binary digits |
| 10/18/1983 | US4411004 Inductively coupled sensing circuit and priority system |
| 10/18/1983 | US4410990 Processing binary data |
| 10/18/1983 | US4410986 Error and status detection circuit for a digital regenerator using quantized feedback |
| 10/18/1983 | US4410983 Distributed industrial control system with remote stations taking turns supervising communications link between the remote stations |
| 10/18/1983 | US4410878 Digital signal transmission |
| 10/18/1983 | CA1155521A1 Method and system for retransmitting incorrectly received numbered frames in a data transmission system |
| 10/12/1983 | EP0091214A2 Ratio comparator for digital signals |
| 10/12/1983 | EP0091129A2 Reconfiguration control method for a loop-type data network |
| 10/11/1983 | US4409684 Circuit for synchronizing a transmitting-receiving station to a data network of a digital communication system |
| 10/05/1983 | EP0090210A1 System for the automatic initiation of a trunking scheme of short wave telegraph signals |
| 10/05/1983 | EP0090019A1 Multiple source clock encoded communications error detection circuit. |
| 10/04/1983 | US4408226 Test apparatus for monitoring digital transmissions |
| 10/04/1983 | CA1154841A1 Digital signal transmission method and apparatus |