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)
11/1987
11/12/1987DE3615235A1 Method for synchronising and routing in partially meshed communication networks
11/11/1987EP0245077A2 TDMA communication system having common local path medium and local time slot for intraoffice calls
11/10/1987CA1229185A1 High-speed burst signal monitoring device
11/10/1987CA1229184A1 Frame arrangement for multiplexing a plurality of subchannels onto a fixed rate channel
11/04/1987EP0243938A2 Protection channel monitoring system using a check signal comprising two different n-bit code patterns sequentially arranged at random
11/03/1987CA1228928A1 Data rate conversion and supervisory bit insertion in a data system
10/1987
10/28/1987EP0242915A1 Device for clock recovery in an information transmission system using in one transmission direction the time division multiple access principle
10/28/1987EP0242367A1 Asynchronous communication system.
10/27/1987US4703479 Multi-direction time division multiplex communication apparatus
10/27/1987US4703471 Monolithically integrated electro-optical multiplexer/demultiplexer
10/27/1987EP0157766A4 Data encoding and synchronization for pulse telemetry.
10/21/1987EP0242142A2 System for adjusting signal transmission timing to prevent signal collisions
10/21/1987EP0242117A2 Distributed timing control for a distributed digital communication system
10/21/1987EP0241777A1 Demultiplexing stage of a digital transmission apparatus
10/21/1987EP0241622A1 An efficient transmission mechanism integrating data and non coded information
10/20/1987US4701913 Circuit and method for extracting signalling information embedded in channelized serial data streams
10/15/1987DE3609733A1 Method of ordering bursts in ascending sequence in a transmission frame
10/14/1987EP0241229A2 A fast assignment technique for use in a switching arrangement
10/14/1987EP0240821A2 Method for the transmission of digital signals in a mobile radio system
10/13/1987US4700341 Stochastic time division multiplexing
10/13/1987US4700184 One-way data packet transmission system for processing data arranged in groups
10/08/1987WO1987006085A1 Dejitterizer method and apparatus
10/08/1987WO1987006083A1 Tdm communication system for efficient spectrum utilization
10/08/1987WO1987006082A1 Method and apparatus for controlling a tdm communication device
10/06/1987US4698826 Clock repeater for triplicated clock distributor
10/06/1987US4698806 Frame alignment of tributaries of a t.d.m. bit stream
10/06/1987US4698802 Combined circuit and packet switching system
10/06/1987CA1227858A1 Prioritized clock selection circuit
10/06/1987CA1227845A1 Multipoint data communications
10/06/1987CA1227844A1 Communications network having a single node and a plurality of outstations
09/1987
09/30/1987EP0239286A2 Photonic switching
09/30/1987EP0238988A2 Digital signal transmitting system
09/29/1987US4697277 Synchronization recovery in a communications system
09/29/1987US4697264 Bit compression multiplexing
09/29/1987US4697263 Time slot arrangements for local area network systems
09/29/1987US4697262 Digital carrier channel bus interface module for a multiplexer having a cross-connect bus system
09/22/1987US4695997 Device for performing wrap tests on a multiplex link in a data communication system
09/22/1987CA1227295A1 Method and system for transmitting digitized voice signals as packets of bits
09/17/1987DE3608357A1 Multiplexing and nB/mB coding arrangement
09/17/1987DE3608356A1 Demultiplex and mB/nB decoding arrangement
09/16/1987EP0237106A2 A method and a system for synchronizing clocks in a bus type local network
09/15/1987US4694472 Clock adjustment method and apparatus for synchronous data communications
09/15/1987US4694470 Data transmission circuit
09/15/1987US4694453 System for adjusting signal transmission timing in time-division multiplexing signal transmission
09/15/1987US4694291 Device for transmitting a clock signal accompanied by a synchronization signal
09/15/1987CA1226979A1 Receive data processing device for tdma satellite communications network
09/10/1987DE3607219A1 Circuit arrangement for transmitting data signals
09/09/1987EP0236102A2 Apparatus and method for transmitting first and second types of information over a time slot driven bus
09/09/1987EP0235257A1 Multiplexed digital packet telephone communication method.
09/09/1987EP0235179A1 Radiotelephone system employing digitized speech/data and embedded signalling
09/08/1987US4692932 Triplicated clock distribution device for use when each clock signal comprises a synchonization signal
09/08/1987US4692894 Overflow/Underflow detection for elastic buffer
09/08/1987CA1226636A1 Circuit arrangement for frame and phase synchronization of a local sampling clock
09/02/1987EP0234859A2 Time stamp and packet virtual sequence numbering for reconstructing information signals from packets
09/02/1987EP0234386A1 Frame decoding
08/1987
08/27/1987WO1987005173A1 Voice, data or both over one telephone line in a t-1 carrier system
08/27/1987WO1987005169A1 Signal processing system
08/25/1987US4689790 Method and apparatus for remote signalling on a digital transmission link
08/25/1987US4689788 Method and apparatus for implementing a cost efficient voice/data communication system with a conventional PBX switch
08/25/1987US4689784 Data distributor capable of selecting an optional partial data signal and distribution device comprising a plurality of the data distributors
08/25/1987US4689619 Method and apparatus for polling subscriber terminals
08/20/1987DE3604835A1 Method for transmitting useful information via a transmission path
08/19/1987EP0232886A1 Frame decoding
08/19/1987EP0124576B1 Apparatus for receiving high-speed data in packet form
08/18/1987US4688233 Digital data transmitting device for communication paths of restricted and unrestricted transmission characteristics
08/18/1987US4688215 Demultiplexer for two-stage framing
08/18/1987US4688210 Method of and arrangement for synchronizing the receiver arrangements in a digital multiplex transmission system
08/18/1987US4688209 Method and apparatus for looping around a digital transmission line at a channel unit
08/18/1987US4688208 Time division exchange for carrying out a loop-back test
08/13/1987DE3603977A1 Method for digital transmission of phase-modulated analog signals
08/12/1987EP0232043A2 Scrambling data signals
08/12/1987EP0231809A2 Method for integration of one or more supplementary-function modules in telephone exchanges and also access circuit for realisation of the method
08/12/1987EP0231711A1 Process and multiplexing/demultiplexing equipment for quality measurement and fault location in multiplexed digital channels
08/12/1987EP0231590A2 Frame alignment of tributaries of a T.D.M. bit stream
08/12/1987EP0231202A1 Circuit arrangement to align the pcm groups entering a communication branch point with another
08/11/1987US4686667 Broadband integrated subscriber loop system
08/05/1987EP0230691A1 Transmitter power control apparatus for microwave link
08/04/1987US4685115 Apparatus for transmitting digital signals
08/04/1987US4685106 High rate multiplexer
08/04/1987US4685101 Digital multiplexer for PCM voice channels having a cross-connect capability
08/04/1987US4684981 Digital terminal address transmitting for CATV
07/1987
07/30/1987EP0152423A4 Maintenance response signalling arrangement for a digital transmission system.
07/30/1987DE3528767A1 TDMA point-to-multipoint communication system
07/28/1987US4683567 Asynchronous signaling system for digital communication channel
07/28/1987US4683566 Digital radio communication system
07/27/1987EP0165242A4 Fiber optic digital data transmitting system.
07/23/1987EP0151616A4 Control signalling arrangement for a digital transmission system.
07/22/1987EP0229684A2 Data framing system for time division multiplexing transmission
07/21/1987CA1224556A1 System for switching trains of constant length data packets
07/16/1987WO1987004310A1 Circuit for detecting synchronism in a digital broadcast receiver
07/16/1987DE3600795A1 Digital communications system
07/15/1987EP0228685A2 Phase adjustment system
07/15/1987EP0228629A2 Time-division multiplexing communication system
07/14/1987US4680779 Distributed clock synchronization in a digital data switching system
07/14/1987US4680759 Standard/proportional multiplexer
07/08/1987EP0228214A2 Apparatus and associated method for converting serial data pattern signals transmitted or suitable for transmission over a high speed synchronous serial transmission media, to parallel pattern output signals
07/08/1987EP0228213A2 System for transmitting and receiving asynchronous nonhomogeneous variable width parallel data over a synchronous high speed serial transmission media
07/07/1987US4679187 Adaptive trunk-compression system with constant grade of service
07/07/1987CA1223986A1 Multiplexing system
07/07/1987CA1223985A1 Apparatus and method for checking time slot integrity of a switching system
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