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)
10/1983
10/25/1983US4412322 Time division switching system
10/25/1983CA1155978A1 Apparatus to reduce the effect of a mid-talkspurt freeze-out
10/25/1983CA1155977A1 Decoding tim bus structure
10/12/1983EP0091362A1 Generalized modular digital telephone exchange
10/12/1983EP0091338A1 Extended modular digital telephone exchange
10/11/1983CA1155241A1 Diagnostic circuit for pcm connection networks
10/11/1983CA1155208A1 Time division electronic switching system
10/06/1983EP0082200A4 Processor facilities for integrated packet and voice switching.
10/04/1983US4408323 Processor facilities for integrated packet and voice switching
09/1983
09/29/1983WO1983003328A1 Multiple access data communication system control
09/29/1983WO1983003327A1 Bidirectional dual network
09/28/1983EP0089716A1 Method of and arrangement for establishing a conference connection in a TDM communication system
09/28/1983EP0089683A1 Improvements relating to PCM switching units
09/21/1983EP0089159A1 Timed token ring with multiple priorities
09/21/1983EP0088786A1 Method and arrangement for signaling the transmission mode of a communication system.
09/20/1983US4406005 Dual rail time control unit for a T-S-T-digital switching system
09/20/1983US4406004 Ring scheduling apparatus for a digital multiplexed telecommunication system
09/20/1983CA1154132A1 Interconnecting apparatus for a distributed switching telephone system
09/15/1983WO1983003180A1 Timed token ring with multiple priorities
09/15/1983WO1983003175A1 Method and apparatus for synchronising the phase of a transit exchange in a digital telecommunication network
09/13/1983US4404672 Subscriber terminal for use in a time shared bidirectional digital communication network
09/13/1983US4404630 Data-extraction circuitry for PCM communication system
09/13/1983US4404557 Timed token ring with multiple priorities
09/06/1983US4403322 Voice signal converting device
09/06/1983US4403321 Switching network
09/06/1983US4403320 Line status detection in a digital concentrator system
09/06/1983CA1153452A1 Continuity verification arrangement
08/1983
08/31/1983EP0087265A1 Line transmission systems
08/30/1983US4402079 Delay correction circuit
08/30/1983US4402078 Signalling switching system in a time switching network and time switching network incorporating such a system
08/30/1983US4402077 Dual rail time and control unit for a duplex T-S-T-digital switching system
08/30/1983US4402074 Switching network test system
08/30/1983US4402073 Speech and data communication network
08/30/1983CA1153090A1 Connection network control system
08/24/1983EP0086634A1 Memory circuitry for use in a digital time division switching system
08/24/1983EP0086223A1 A local area communication network.
08/23/1983US4400587 Overflow and diversion to a foreign switch
08/23/1983CA1152659A1 Broadcast and alternate message time slot interchanger
08/23/1983CA1152650A1 Pcm and pam conversion circuit including signal level variation on the pcm portion of the circuit
08/23/1983CA1152579A1 Device for controlling a digital signal generator
08/16/1983US4399534 Dual rail time and control unit for a duplex T-S-T-digital switching system
08/16/1983US4399533 Dual rail time and control unit for a T-S-T-digital switching system
08/16/1983US4399532 Methods of and systems for monitoring a first call connection while effecting the establishment of a second call connection
08/16/1983US4399369 Dual rail time and control unit for a duplex T-S-T-digital switching system
08/10/1983EP0085558A2 Supervision of automatic switching systems
08/10/1983EP0085256A2 Digital time-division switch
08/10/1983EP0085226A2 Switching network for use in a time division multiplex system
08/10/1983EP0085144A2 Arrangement for clock supply in a digital communication exchange
08/09/1983US4398287 Digital switching over PAM bus system
08/09/1983US4398285 Time-division multiplex switching network
08/09/1983US4398284 Concentrator in a subscriber loop digital carrier system
08/09/1983CA1151754A1 Multiplex interconnexion device for time switching centre
08/02/1983US4397030 Digital communication system
08/02/1983US4397016 Process for switching time-multiplexed signals transmitted on a carrier, including in particular an optical carrier, and a device embodying this process
08/02/1983CA1151327A1 Digital conference circuit and method
08/02/1983CA1151325A1 Multiple data rate digital switch for a tdma communications controller
08/02/1983CA1151243A1 Optical telephone device
07/1983
07/26/1983CA1150865A1 Time division multiplex communication systems
07/26/1983CA1150805A1 Time division switching system control arrangement
07/21/1983WO1983002535A1 Communication arrangements for distributed control systems
07/20/1983EP0084002A1 Modular digital telephone switch of several autonomous switching bays of the same kind, and arrangement for inter-bay synchronization
07/19/1983US4394757 Frame format for PCM speech data in a telephone transmission system and digital telephone apparatus for use with this frame format
07/19/1983US4394756 Generation of busy signals in a digital concentrator
07/19/1983CA1150431A1 Multiplex synchronizing device for time switching exchange
07/19/1983CA1150430A1 Control logic for a multiplex interconnexion unit in a time switching exchange
07/19/1983CA1150429A1 Time division digital switching installation for speech and data packet transmission lines
07/19/1983CA1150386A1 Time division multiplex switching network with an associative buffer store of the register counter type
07/12/1983US4393497 Loop switching system
07/12/1983US4393496 Method for feeding call progress tones into conference connections
07/12/1983US4393495 Message translation arrangement for telephony system with romote port groups
07/12/1983US4393491 Automatic self-test system for a digital multiplexed telecommunication system
07/12/1983US4393490 Digital telecommunications switches network with in-built fault identification
07/12/1983US4393381 Transfer bus matrix
07/12/1983CA1149976A1 Data link for digital channel bank systems
07/12/1983CA1149917A1 Network connection system
07/07/1983WO1983002379A1 Digital loop transceiver for interfacing a digital pabx to a digital subscriber set via a subscriber line
07/05/1983US4392224 Speech path switching system in time-divisional electronic telephone switching system
07/05/1983US4392223 Dual rail time and control unit for a T-S-T-digital switching system
07/05/1983US4392221 Time division multiplex module for use in digital switching network
07/05/1983CA1149526A1 Frame aligner for digital telecommunications exchange system
07/05/1983CA1149525A1 Channel zero switching arrangements for digital telecommunication exchanges
07/05/1983CA1149495A1 Digital telecommunications switching network with in-built fault identification
07/05/1983CA1149493A1 Alarm monitoring arrangements for digital telecommunications switching networks
06/1983
06/29/1983EP0082333A1 Interleaved digital data and voice communications system and method
06/29/1983EP0082200A1 Processor facilities for integrated packet and voice switching.
06/28/1983US4390986 Digital subscriber communication system
06/28/1983US4390983 Digital frequency sender
06/28/1983US4390982 Digital PBX system
06/28/1983CA1149049A1 Control information communication arrangement for a time division switching system
06/22/1983EP0081799A1 Method and circuit for establishing a conference connection
06/21/1983US4389720 Distributed digital conferencing system
06/21/1983US4389642 Digital matrix switching
06/21/1983US4389544 Digital telephone apparatus
06/21/1983CA1148637A1 Control system for telephone switching system
06/14/1983US4388718 Digital telecommunication system
06/14/1983US4388717 Conference circuit for PCM system
06/14/1983US4388715 Alarm preprocessor logic
06/07/1983US4387456 Alarm monitoring arrangements for digital telecommunications switching networks
06/07/1983US4387278 Maintenance facility for telephony system with remote port groups
06/07/1983CA1147875A1 Packet transmission system with voice signal priority
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