| Patents for H04J 3 - Time-division multiplex systems (63,408) |
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| 04/04/1989 | CA1252234A1 Method of multiplexing digital signals |
| 04/04/1989 | CA1252157A1 Phase adjustment system |
| 03/29/1989 | EP0308632A2 Ternary signal multiplexing circuit |
| 03/29/1989 | EP0308565A1 Improvement to digital packet switching networks |
| 03/29/1989 | EP0308450A1 Jitter control in digital communications links. |
| 03/29/1989 | EP0308449A1 Transfer of messages in a multiplexed system. |
| 03/28/1989 | US4817090 Integrated electronic multiplex circuit |
| 03/28/1989 | US4817089 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 03/28/1989 | US4817085 Data communication system having a packet switching network |
| 03/28/1989 | CA1251875A1 Method of and arrangement for synchronising the receiver arrangements in a digital multiplex transmission system |
| 03/23/1989 | WO1989002683A1 A method of demultiplex processing of information and equipment for performing the method |
| 03/23/1989 | WO1989002681A1 Method of communicating digital signals and receiver for use with such method |
| 03/22/1989 | EP0308150A1 Method of communicating digital signals and receiver for use with such method |
| 03/22/1989 | EP0308086A2 Multiplexed built-in test equipment |
| 03/22/1989 | EP0307962A2 Time division multiple access radio communication system |
| 03/21/1989 | US4815131 Digital audio channel selection circuit |
| 03/21/1989 | US4815110 Method and a system for synchronizing clocks in a bus type local network |
| 03/21/1989 | US4815109 Compensating for differences in frequency |
| 03/21/1989 | US4815074 High speed bit interleaved time division multiplexer for multinode communication systems |
| 03/21/1989 | US4814634 Ternary signal multiplexor circuit |
| 03/21/1989 | CA1251583A1 Multiplex system |
| 03/21/1989 | CA1251582A1 Method and device for converting digital channel multiframes into packet multiframes |
| 03/21/1989 | CA1251520A1 Digital signal delay circuit |
| 03/14/1989 | US4813040 Method and apparatus for transmitting digital data and real-time digitalized voice information over a communications channel |
| 03/14/1989 | CA1251280A1 Method of transmitting audio information and additional information in digital form |
| 03/14/1989 | CA1251266A1 Distribution device for a triple clock generating signals with a synchronisation component |
| 03/08/1989 | EP0306002A1 Process for the adaptive phase adjustment in a synchronous wide-band digital signal coupler |
| 03/08/1989 | EP0305992A2 Drop/insert processing circuit |
| 03/08/1989 | EP0305824A2 Serial interface |
| 03/07/1989 | US4811367 Circuit for detecting plural kinds of multi-frame synchronization on a digital transmission line |
| 03/07/1989 | US4811359 Protection channel monitoring system using a check signal comprising two different N-bit code patterns sequentially arranged at random |
| 03/07/1989 | US4811341 Hierarchical data transmission system |
| 03/07/1989 | US4811340 Synchronization of asynchronous data signals |
| 03/07/1989 | US4811338 System for adjusting signal transmission timing to prevent signal collisions |
| 03/07/1989 | US4811015 Abnormal data transmission detection circuit for time-division multiplex transmission network system |
| 03/07/1989 | CA1250936A1 Adaptive packet/circuit switched transportation method and system |
| 03/07/1989 | CA1250907A1 Device for transmitting a clock signal with a synchronisation signal |
| 03/07/1989 | CA1250906A1 Repeater for the distribution of triple clock signals |
| 03/01/1989 | EP0305036A2 Pseudorandom word sequence synchronizer |
| 03/01/1989 | EP0304938A2 Digital signal multiplexing apparatus |
| 03/01/1989 | EP0304815A2 Circuit for the detection and/or control of synchronisation words comprised in a serial data stream |
| 03/01/1989 | EP0304814A2 Synchronisation circuit |
| 02/28/1989 | US4809302 Clock injector circuit |
| 02/28/1989 | US4809271 Voice and data multiplexer system |
| 02/28/1989 | US4809270 Variable time slot communication system |
| 02/28/1989 | US4809268 Multipoint data communication with a supervisory system for detecting a malfunctioning remote station |
| 02/28/1989 | US4809260 Telephone exchange |
| 02/28/1989 | US4808937 Phase-locked loop for a modem |
| 02/28/1989 | US4808008 Method of transmitting digital streams over higher rate channels and a device for implementing same |
| 02/28/1989 | CA1250675A1 Higher-order multiplex digital communication system with identification patterns specific to lower-order multiplex digital signals |
| 02/28/1989 | CA1250674A1 Extracting signalling information embedded in channelized serial data streams |
| 02/28/1989 | CA1250673A1 Subscriber rf telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of rf channels |
| 02/28/1989 | CA1250647A1 Terrestrial communications system |
| 02/21/1989 | US4807259 Time synchronization method in data transmission system |
| 02/21/1989 | US4807250 Coding device selectively connected to a transmission line |
| 02/21/1989 | US4807221 Digital signal multiplex device |
| 02/15/1989 | CN2032778U Single chip microcomputer distribution control type time-division multiplex device |
| 02/14/1989 | US4805198 Clock multiplier/jitter attenuator |
| 02/14/1989 | US4805189 Signal processing system |
| 02/14/1989 | US4805171 Unitary PCM rate converter and multiframe buffer |
| 02/14/1989 | US4805167 Variable data rate channel for digital network |
| 02/14/1989 | US4805165 Time division multiplex data transmission method and apparatus |
| 02/09/1989 | WO1989001278A1 Digital data communications terminal and modules therefor |
| 02/09/1989 | DE3725060A1 Method for additional signal transmission in a broadband (wideband) digital transmission channel |
| 02/08/1989 | EP0302622A2 Method of communicating stuffing indications in a multi-level communications system |
| 02/08/1989 | EP0302112A1 Multiplex dividing apparatus in a synchronous multiplexing system |
| 02/07/1989 | US4803680 Destuffing circuit with a digital phase-locked loop |
| 02/01/1989 | EP0301481A1 Synchronisation device for a demultiplexer of digital signals |
| 01/31/1989 | US4802192 Circuit for detecting synchronizing code |
| 01/31/1989 | CA1249648A1 Adaptive trunk-compression system with constant grade of service |
| 01/25/1989 | EP0300649A1 Bit synchronisation for optical networks |
| 01/25/1989 | EP0300263A2 Weak/strong bus driver |
| 01/24/1989 | US4800578 Synchronizing detecting circuit for a digital broadcasting receiver |
| 01/24/1989 | US4800561 Synchronization burst transmit phase control system |
| 01/24/1989 | US4800559 Ethernet and broadband lan interface |
| 01/18/1989 | EP0299265A2 Receiver synchronization in encoder/decoder |
| 01/18/1989 | EP0299251A2 Communication filter |
| 01/18/1989 | EP0299207A2 Circuitry for the selective reading of information of a bit group-oriented, continuous flow of information in an ISDN oriented interface |
| 01/17/1989 | CA1249083A1 Multilevel multiplexing |
| 01/17/1989 | CA1249082A1 Arrangement for detecting bursts in tdma communications system |
| 01/12/1989 | WO1989000364A1 Data transmission using switched resonance |
| 01/11/1989 | EP0298546A1 System for the transmission of a series of digital samples coded by binary words with variable lengths |
| 01/10/1989 | US4797951 Parallel optical data transmission system |
| 01/10/1989 | US4797883 Encoding or decoding circuit for time division multiplex and simultaneous signals |
| 01/10/1989 | US4797678 Device for predicting unique word detection positions in a TDMA station by using latest valid detection positions |
| 01/10/1989 | US4797654 Data format conversion circuit |
| 01/10/1989 | CA1248624A1 Digital signal transmitting system |
| 01/10/1989 | CA1248604A1 Loop around data channel unit |
| 01/10/1989 | CA1248602A1 Distributed time division multiplexing bus |
| 01/05/1989 | DE3720799A1 Integrated-services broadband time-division multiplex communication system |
| 01/04/1989 | EP0297918A2 Digital synchronisation |
| 01/03/1989 | US4796282 Frame synchronization detection system |
| 01/03/1989 | US4796281 Digital signal transmission system |
| 01/03/1989 | US4796278 Repeater for digital communication system |
| 12/28/1988 | EP0296201A1 Optical communications network |
| 12/28/1988 | CN88103487A Facility for fast frame and phase synchronization |
| 12/27/1988 | US4794596 Data network synchronisation |
| 12/20/1988 | US4792949 Service channel circuit for multiplexed telecommunications transmission systems |
| 12/20/1988 | US4792944 Time-division multiplexing communication system for performing a plurality of communications having different data speeds |
| 12/15/1988 | WO1988010036A1 High speed scrambling at lower clock speeds |