Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 3 - Time-division multiplex systems
Patents for H04J 3 - Time-division multiplex systems (63,408)
07/1987
07/07/1987CA1223947A1 Digital span reframing circuit
07/07/1987CA1223934A1 Asynchronous transmission system particularly for interactive videotex system
07/02/1987DE3546132A1 Circuit arrangement to generate two cycles
07/01/1987EP0227378A2 Method for receiving and converting high speed serial data pattern input signals to parallel data pattern output
07/01/1987EP0227341A2 Time division multiple access communications terminal
07/01/1987EP0227145A1 Supervision circuit for a non-encoded binary bit stream
07/01/1987EP0227099A2 Station of a TDMA communication network capable of quickly changing communication traffic without causing an overlap between transmission bursts
07/01/1987EP0226754A2 Circuit for generating several clockpulses
06/1987
06/30/1987US4677614 Data communication system and method and communication controller and method therefor, having a data/clock synchronizer and method
06/30/1987US4677612 Communication system with subdivided transmission cycles
06/30/1987US4677608 Method of transferring an additional information channel across a transmission medium
06/24/1987EP0226054A1 Digital signal distributor
06/24/1987EP0226017A2 Data synchronizer between a source system and a sink system
06/23/1987US4675886 Frame synchronization device
06/23/1987US4675863 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
06/23/1987US4675862 For use with a digital transmission line
06/23/1987CA1223378A1 Multiple-access communications system
06/18/1987WO1987003762A1 Adaptive rate multiplexer-demultiplexer
06/16/1987US4674088 Method and apparatus for detecting frame synchronization
06/16/1987US4674087 Asynchronous signaling for digital communication channel
06/16/1987US4673974 Image transmission system
06/10/1987EP0225025A2 Data transmission system
06/10/1987EP0224884A2 Clock circuit synchronization
06/10/1987EP0224626A1 Multi-signal processor synchronized system
06/10/1987CN86105498A Digital transmission interconnect signal
06/10/1987CN86105195A Digital transmission including add/drop module
06/09/1987US4672669 Voice activity detection process and means for implementing said process
06/09/1987US4672641 Surface acoustic wave device for data rate reduction
06/09/1987US4672608 Multiple access communications system
06/09/1987US4672299 Clock control circuit for phase control
06/04/1987WO1987003434A1 Method and apparatus for encoding and transmitting signals
06/02/1987US4670889 Frequency control for point to multipoint radio
06/02/1987CA1222572A1 Methods and apparatus for correcting a software clock from an accurate clock
05/1987
05/27/1987EP0223443A2 Switching TDM digital signals
05/27/1987EP0222943A1 Variable word length encoder
05/26/1987US4669080 Synchronizing circuit in a plesiochronous digital signal multiplexer
05/20/1987EP0222544A2 Method of multiplexing digital signals
05/20/1987EP0222368A2 Control circuit for frame synchronization at the receiving side
05/19/1987US4667334 System for broadcasting data packets originating from different sources
05/19/1987US4667324 Network multiplex structure
05/19/1987US4667319 Digital repeater with 3-way branching of service channels
05/13/1987CN86105396A Radiotelephone system employing digitized speech/data and embedded signalling
05/13/1987CN86103571A Multistation information transmission system
05/12/1987US4665533 Digital signal transmission system
05/12/1987US4665514 Integrated voice/data network
05/12/1987CA1221766A1 Interface arrangement for a telephone system or the like
05/06/1987EP0220808A2 Multiplexer for digital signals
05/05/1987US4663765 Data muting method and apparatus for audo-digital communications systems
05/05/1987US4663755 Transmission system
05/05/1987US4663754 Remote control system for data communication utilizing modems
05/05/1987US4663748 Local area network
05/05/1987CA1221433A1 Multi-user serial data bus
05/05/1987CA1221431A2 Method and apparatus for communicating variable length messages between a primary station and remote stations of a data communications system
04/1987
04/29/1987EP0220019A2 D-5 channel bank control structure and controller
04/28/1987US4661966 Method and apparatus for adjusting transmission rates in data channels for use in switching systems
04/28/1987US4661952 Method for transmitting data in a telecommunications exchange
04/23/1987WO1987002533A1 Asynchronous communication system
04/22/1987EP0219016A2 Digital transmission system with signal rate conversion
04/22/1987CN86104523A Dynamic picture coder with self know drawing of insert symbol
04/21/1987US4660195 Channel detecting circuit in a receiver in a time-division multiplex transmission system
04/21/1987US4660164 Multiplexed digital correlator
04/21/1987CA1220884A2 Associative array
04/21/1987CA1220883A1 Base-band equipment for earth stations of a time division multiple access satellite transmission system
04/21/1987CA1220866A1 Interface method and apparatus
04/16/1987DE3536874A1 Time division multiplex transmission method for digital narrowband and broadband signals with access of terminals to a common 16 kbit/s signalling channel
04/15/1987EP0218499A1 Multiplex and demultiplex equipments for a digital synchronous link with variable flow and modulation rapidity
04/14/1987US4658405 Radio communication system
04/14/1987US4658206 Fault detector for communications equipment using exclusive or circuitry
04/14/1987US4658152 Adaptive rate multiplexer-demultiplexer
04/14/1987CA1220577A1 Network protocol for integrating synchronous and asynchronous traffic on a common serial data bus
04/09/1987DE3534581A1 Method and arrangement for injecting and extracting a digital narrowband signal into and respectively out of a digital signal which contains a broadband signal
04/08/1987EP0217722A2 Combination TASI and ADPCM apparatus
04/08/1987EP0217412A2 Coding device selectively connected to a transmission line
04/07/1987US4656629 Digital signal transmitting and/or receiving system
04/01/1987EP0216720A1 System for the assembly and bit-by-bit serialization of packet multiplex signals
04/01/1987EP0216456A2 Multiplex structure
04/01/1987EP0216427A1 Device for deriving a synchronizing signal
04/01/1987EP0216250A1 Method for taking over signalization data words of a plesiochronic multiplex signal in a signalization signal convecting exchange.
04/01/1987EP0215957A1 Multiplex system.
03/1987
03/31/1987US4654860 Spacecraft telemetry regenerator
03/31/1987US4654655 Multi-user serial data bus
03/31/1987CA1219978A1 Digital radio relay equipment
03/31/1987CA1219977A1 Circuits for detecting framing bits in a t.d.m. bit stream
03/31/1987CA1219916A1 Digital paging system having bit rate switching means and digital paging receiver therefor
03/26/1987DE3533315A1 Method and circuit arrangement for transmitting data signals in time slots of a transmission line used in time division multiplexing
03/26/1987DE3533314A1 Method and circuit arrangement for receiving data signals occurring on a transmission line used in time division multiplexing
03/25/1987EP0215526A2 Data communication system
03/24/1987US4653049 Multidirection multiplex communication systems
03/24/1987CA1219690A1 Apparatus for detecting in-band single frequency signaling tones from fdm channels
03/18/1987EP0214783A2 Digital transmisson including add/drop module
03/18/1987EP0214656A1 Transmission method for a digital signal multiplex apparatus
03/18/1987EP0214406A1 Time division multiplexing method for the transmission of video and narrow band signals
03/18/1987EP0214352A1 Adaptive packet/circuit switched transportation method and system
03/17/1987US4651330 Multipoint data communications
03/17/1987US4651319 Multiplexing arrangement with fast framing
03/17/1987US4651317 Time division multiplex data transmission system
03/17/1987US4651103 Phase adjustment system
03/17/1987CA1219386A1 Distributed bus asynchronous digital time division multiplexing system
03/12/1987WO1987001490A1 Radiotelephone system employing digitized speech/data and embedded signalling
03/11/1987EP0213641A2 Delay time adjusting method, circuit, and system
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