| Patents for H04J 3 - Time-division multiplex systems (63,408) |
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| 02/20/1980 | EP0008285A1 Control system using time division multiplexing. |
| 02/20/1980 | EP0008238A2 A multiplex information handling system |
| 02/20/1980 | EP0008016A1 Method as well as transmitting and receiving apparatus for data transmission with adaptive error correctron |
| 02/19/1980 | US4189625 Method and apparatus for processing dual frequency digital information signals |
| 02/19/1980 | CA1072227A1 Access method and station apparatus for compressed handling of digital voice and data signals relative to a high speed tdma facility |
| 02/12/1980 | US4188615 Bit error detecting circuit for use in a digital signal transmission line |
| 02/12/1980 | US4188582 Simulcast transmission system having phase-locked remote transmitters |
| 02/12/1980 | CA1071781A1 Multiplexer receiver terminator |
| 02/12/1980 | CA1071780A1 Multiplexer transmitter terminator |
| 02/06/1980 | EP0007524A1 Method and circuit for data transmission |
| 02/05/1980 | US4187400 Time-division multiplex communication system for connecting two-wire line circuits in time-division multiplex |
| 02/05/1980 | US4187394 High-speed data link for moderate distances and noisy environments |
| 01/29/1980 | CA1070841A1 Digital correlation receivers |
| 01/22/1980 | US4185245 Fault-tolerant clock signal distribution arrangement |
| 01/15/1980 | US4184052 AM/FM time division surface wave device transmitter |
| 01/15/1980 | US4184051 Digital memory providing fixed and variable delays in a TASI system |
| 01/10/1980 | WO1980000051A1 Surface acoustic wave unique word detector and coherent demodulator |
| 01/08/1980 | CA1069627A1 Common control failure alarm apparatus |
| 01/01/1980 | CA1069229A T.d.m. transmission of binary signals |
| 12/25/1979 | US4180865 Portable multiplex bus exerciser |
| 12/18/1979 | US4179624 Carrier control method by using phase-pulse signals |
| 12/18/1979 | CA1068408A1 Circuit and method for digitally measuring signal levels, of pcm encoded signals |
| 12/13/1979 | WO1979001089A1 Multiple frame rate technique for a tdma communication system |
| 12/12/1979 | EP0005943A1 Improvements in or relating to digital data transmission |
| 12/11/1979 | US4178480 Signal multiplexing circuit |
| 12/11/1979 | US4178479 Communication processor apparatus for use in a TDM switching system |
| 12/11/1979 | CA1068021A1 Digital testing and power control in a digital communication system |
| 12/11/1979 | CA1067988A1 Transmission trunk multichannel dispatch system with priority queuing |
| 12/04/1979 | US4177357 Spatially distributed analog time division multiplexer |
| 12/04/1979 | CA1067629A1 Adaptable zero order predictor for speech predictive encoding communications system |
| 11/27/1979 | CA1067188A1 Connection networks for time-division multiplex systems |
| 11/20/1979 | US4175213 Regenerator having automatic gain control referenced to a data-pattern-dependent pulse stream |
| 11/20/1979 | CA1066825A1 Modular slot interchange digital exchange |
| 11/20/1979 | CA1066824A1 Digital voice signaling with digital echo detection and voice activity compression used to cancel echo |
| 11/20/1979 | CA1066794A1 Telephone concentrator |
| 11/13/1979 | US4174468 Digital coin circuit |
| 11/13/1979 | US4174465 Signal transmitting interface system combining time compression and multiplexing |
| 11/13/1979 | CA1066440A1 Time division multiplexed loop communication system with dynamic allocation of channels |
| 11/13/1979 | CA1066421A1 Method and apparatus for uniquely encoding channels in a digital transmission system |
| 11/06/1979 | US4173713 Continuously expandable switching network |
| 10/31/1979 | EP0004887A1 Method and device for synchronizing digital transmissions via satellite |
| 10/31/1979 | EP0004856A1 Method for transmitting data streams at different bit rates and apparatus at the sending and receiving side for implementing the method |
| 10/23/1979 | CA1065069A1 Signal coding for telephone communication system |
| 10/17/1979 | EP0004702A1 Simulcast transmission system having phase-locked remote transmitters |
| 10/17/1979 | EP0004562A1 Method and circuitry for frame synchronisation of a time multiplex system |
| 10/16/1979 | US4171467 Signal multiplexing circuit |
| 09/25/1979 | US4169286 Surface acoustic wave unique word detector and coherent demodulator |
| 09/25/1979 | US4169214 Digital carrier-concentrator system with TASI |
| 09/25/1979 | US4169213 Apparatus and method for ordering independent signals |
| 09/18/1979 | US4168532 Multimode data distribution and control apparatus |
| 09/11/1979 | US4167653 Adaptive speech signal detector |
| 09/05/1979 | EP0003849A2 Digital bus communications system |
| 08/28/1979 | CA1061413A1 Synchronization for pcm transmission systems |
| 08/22/1979 | EP0003493A1 Data transmission system between stations connected in a loop |
| 08/21/1979 | CA1061004A1 Digital interface for resynchronizing digital signals |
| 08/21/1979 | CA1060976A1 Time division switching network for switching multirate multiplexed data |
| 08/21/1979 | CA1060975A1 Common control signaling extraction circuit |
| 08/14/1979 | US4164629 Time base for synchronous generation of frame and clock pulses |
| 07/26/1979 | WO1979000459A1 Arrangement for maintaining synchronism in a digital telecommunication network |
| 07/17/1979 | US4161786 Digital bus communications system |
| 07/17/1979 | US4161629 Communication system with selectable data storage |
| 07/12/1979 | WO1979000422A1 A method and an apparatus for transferring digital information in a telephone system |
| 07/11/1979 | EP0003009A2 A method and an apparatus for transferring digital information in a telephone system |
| 07/10/1979 | US4160877 Multiplexing of bytes of non-uniform length with end of time slot indicator |
| 07/10/1979 | US4160876 Modular multiplex/demultiplex apparatus |
| 07/03/1979 | US4160128 Digital data transmission system providing multipoint connections |
| 07/03/1979 | US4160126 Modular multiplex/demultiplex apparatus |
| 07/03/1979 | US4160123 Methods of and apparatus for the encoded transmission of information |
| 06/28/1979 | WO1979000351A1 Control system using time division multiplexing |
| 06/27/1979 | EP0002467A1 Equipment for telephone interexchange signalling on PCM carrier realized by centralized-logic line-exchange interface units |
| 06/26/1979 | US4159535 Framing and elastic store circuit apparatus |
| 06/12/1979 | US4158108 Digital data resynchronization device |
| 06/12/1979 | US4158107 Integral frame slip circuit |
| 06/05/1979 | US4157458 Circuit for use either as a serial-parallel converter and multiplexer or a parallel-serial converter and demultiplexer in digital transmission systems |
| 06/05/1979 | CA1056063A1 Self-checking read and write circuit |
| 05/22/1979 | US4156112 Control system using time division multiplexing |
| 05/22/1979 | US4156110 Data verifier |
| 05/22/1979 | US4156106 Multiplex-data bus modulator/demodulator |
| 05/22/1979 | CA1055171A1 Digital time-division multiplexing system |
| 05/22/1979 | CA1055170A1 Digital time-division multiplexing system |
| 05/17/1979 | WO1979000271A1 Fdm/tdm transmultiplexer |
| 05/15/1979 | US4154984 Process and apparatus for achieving frame synchronization in a PCM receiver of a PCM T.D.M. telecommunications network |
| 05/15/1979 | CA1054693A1 Communication system particularly for filling stations |
| 05/15/1979 | CA1054525A1 Digital network synchronising system |
| 05/08/1979 | USRE29991 Adaptable time division switch |
| 05/08/1979 | US4153816 Time assignment speech interpolation communication system with variable delays |
| 05/08/1979 | CA1054242A1 Network control circuit for a time division switching system |
| 05/01/1979 | US4152543 Installation for time multiplexing and transmitting telephone signals or data between a plurality of subscribers |
| 04/24/1979 | US4151518 Controlling asynchronous conversion between analog and digital parameters |
| 04/24/1979 | US4151373 Data transmission system |
| 04/17/1979 | US4150256 Digital multiplexer incorporating high-speed analog sampling gates |
| 04/17/1979 | CA1052900A1 Multichannel seismic telemeter system and array former |
| 04/10/1979 | US4149038 Method and apparatus for fault detection in PCM muliplexed system |
| 04/10/1979 | US4149037 High common mode relay multiplexer |
| 04/03/1979 | US4147896 Fixed speech buffer memories for signalling without an order wire |
| 04/03/1979 | US4147895 Expandable memory for the suppression of phase jitter in a telecommunication system |
| 04/03/1979 | US4147894 Time division multiplex communication device comprising a switching matrix between C/E buffers and control circuits |
| 04/03/1979 | CA1051998A1 Tdm pcm communication system |
| 03/20/1979 | US4145573 Digital satellite system and method for serving users of differing capacities |
| 03/20/1979 | CA1051133A1 Parity framing of pulse systems |