Patents
Sitemap › H04 - Electric communication technique › H04Q - Selecting › H04Q 11 - Selecting arrangements for multiplex systems
Patents for H04Q 11 - Selecting arrangements for multiplex systems (43,004)
05/1984
05/01/1984CA1166730A1 Bit-by-bit time-division digital switching network
05/01/1984CA1166729A1 Logic device for alarm pretreatment
04/1984
04/24/1984US4445212 Arrangement for multiple custom calling
04/24/1984US4445211 Arrangement for multiple custom calling
04/24/1984CA1166365A1 Distributed digital conferencing system
04/17/1984US4443663 Filtering of port data in a switching system employing interactive processors
04/17/1984CA1165894A1 Computer control systems
04/17/1984CA1165844A1 Telecommunication exchanges
04/17/1984CA1165843A1 Digital concentrator switch
04/11/1984EP0105212A2 Circuit arrangement for the transmission of signals between subscriber lines and at least one transmission line of a services integrated communication centre
04/10/1984US4442502 Digital information switching system
04/10/1984CA1165477A1 Time domain multiple access broadcasting multipoint, and conferencing communication apparatus and method
04/04/1984EP0104991A1 Local hybrid communication network in circuit and packet modes with a time-multiplex loop
04/03/1984US4441180 Service integrated communication transmission and interchange system
04/03/1984CA1165029A1 Subscriber line audio processing circuit apparatus
03/1984
03/29/1984WO1984001248A1 Pulse width modulated telephone line interface
03/29/1984WO1984001246A1 Bulk/interactive data switching system
03/27/1984US4439826 Diagnostic system for a distributed control switching network
03/27/1984CA1164590A1 Subscriber loop system for voice and data
03/26/1984EP0091932A4 Telephone switching control arrangement.
03/21/1984EP0103437A2 Improvements in or relating to digital electronic switching systems
03/21/1984EP0103324A2 Simultaneous voice and data transmission circuit having a digital loop transceiver
03/21/1984EP0103293A2 Integrated communication system
03/21/1984EP0103083A2 Modular self-routing PCM switching network for distributed-control telephone exchanges
03/15/1984WO1984001069A1 Timing delay equalization circuit
03/15/1984WO1984001068A1 A pulse code modulated digital automatic branch exchange
03/14/1984EP0102810A1 Digital transmission systems
03/13/1984CA1163734A1 Subscriber terminal for use in a time shared bidirectional digital communication network
03/07/1984EP0101713A1 Method and apparatus for synchronising the phase of a transit exchange in a digital telecommunication network.
03/01/1984WO1984000870A1 Control information communication arrangement for a time division switching system
03/01/1984EP0086223A4 A local area communication network.
02/1984
02/28/1984CA1163027A1 Digital frequency transmitter for a telecommunication auto-switch
02/28/1984CA1163025A1 Service integrated digital transmission system
02/22/1984EP0101357A1 Automatic electronic time-division switching system, modular in traffic and capacity
02/22/1984EP0100842A2 Circuit switching arrangement
02/21/1984US4433411 Telephone switching network for digital speech transmission
02/16/1984WO1984000660A1 Time multiplex switch for time division switching systems
02/15/1984EP0100614A2 Distributed digital exchange with improved switching system and input processor
02/15/1984EP0100594A2 Improved local area network systems
02/15/1984EP0100593A2 Improved time slot arrangements for local area network systems
02/15/1984EP0100585A2 Telecommunications digital switchblock
02/15/1984EP0055279B1 Arrangement for adjusting an adaptive digital balance filter included in a subscriber unit
02/14/1984US4432089 Digital loop transceiver for interfacing a digital PABX to a digital subscriber set via a subscriber line
02/14/1984US4431992 Circuit for addressing a set of registers in a switching exchange
02/14/1984US4431875 Signalling and channel loop test circuits for station carrier telephone system
02/14/1984CA1162278A1 Digital signal subscriber loop and interface circuit
02/08/1984EP0100077A2 Circuit arrangement for clock generation in communication installations, especially TDM digital exchanges
02/08/1984EP0100076A2 Circuit arrangement for clock generation in communication installations, especially TDM digital exchanges
02/07/1984US4430733 Switching of digital signals
02/07/1984US4430732 Switch matrix apparatus for satellite-switched TDMA system or the like
02/07/1984EP0088786A4 Method and arrangement for signaling the transmission mode of a communication system.
01/1984
01/31/1984US4429391 Fault and error detection arrangement
01/24/1984USRE31510 Signal multiplexing circuit
01/24/1984US4428042 Interface device for coupling a system of time-division multiplexed channels to a data concentrator
01/19/1984WO1984000266A1 End-to-end information memory arrangement in a line controller
01/17/1984CA1160774A1 Service integrated transmission system
01/17/1984CA1160771A1 Service integrated, digital transmission system
01/17/1984CA1160770A1 Service integrated digital transmission system operating in time multiplex
01/17/1984CA1160769A1 Service integrated digital signal transmission system
01/17/1984CA1160768A1 Service integrated digital transmission system
01/10/1984US4425641 Time division multiplex telecommunication digital switching modules
01/10/1984US4425640 Telecommunications switching network using digital switching modules
01/10/1984CA1160372A1 Trilateral duplex path conferencing system with broadcast capability
01/04/1984EP0097360A2 Modular self-routing PCM switching network with virtual-channel routing control for distributed-control telephone exchanges
12/1983
12/27/1983US4423507 Communications system for interconnecting a plurality of asynchronous data processing terminals
12/27/1983CA1159542A1 Digital satellite telephone office
12/27/1983CA1159541A1 Pcm switching element
12/27/1983CA1159540A1 Digital concentrator for use with a digital telephone office
12/21/1983EP0096419A1 Distributed variable-band switching system for speech and data
12/21/1983EP0096409A1 Digital telecommunications terminal, especially a telephone subscriber station
12/20/1983US4421955 Distributed switching system
12/20/1983US4421951 Method and arrangement for signaling the transmission mode of a communication system
12/20/1983CA1159131A1 Distributed cbx system employing packet network
12/13/1983US4420832 Concentrator-deconcentrator devices
12/13/1983CA1158790A1 Gain control apparatus for digital telephone line circuits
12/13/1983CA1158787A1 Service integrated communication transmission and interchange system
12/08/1983WO1983004363A1 Digital concentrator
12/08/1983WO1983004359A1 Automatic interactive conference arrangement
12/08/1983WO1983004355A1 Method and apparatus for through-connection testing in a digital telecommunication network
12/06/1983US4419753 Network connection system
12/06/1983CA1158347A1 Digital private branch exchange
11/1983
11/24/1983WO1983004115A1 Apparatus for connecting digital terminals to a digital exchange
11/23/1983EP0094428A1 Control of dna sequence transcription.
11/22/1983US4417335 Digital satellite telephone office
11/22/1983US4417333 System to interconnect subscriber lines to a telephone automatic time division switch
11/22/1983CA1157591A1 Byte data activity compression
11/16/1983EP0094322A1 High-rate coupler between a PCM multiplex and a packet switch
11/16/1983EP0094096A1 Broad-band communication system
11/10/1983WO1983003937A1 Digital multiplex device
11/09/1983EP0093523A1 Digital switching network for telecommunications exchange
11/09/1983EP0093205A1 System for transmitting programme or data signals
11/08/1983CA1156749A1 Signal control system
11/01/1983US4413338 Communication system for interconnecting a plurality of asynchronous data processing terminals
11/01/1983US4413337 Time division switching system for circuit mode and packet mode lines
11/01/1983US4413335 Fault recovery apparatus for a PCM switching network
11/01/1983CA1156384A1 Error monitoring in digital transmission systems
11/01/1983CA1156349A1 Buffer memory dispersion type video/audio transmission system with spatially and timewise divided inter-office junction lines
10/1983
10/27/1983WO1983003697A1 Light wave control device
10/26/1983EP0091932A1 Telephone switching control arrangement.
10/25/1983US4412324 Bit-by-bit time-division switching network
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