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)
09/1982
09/21/1982US4351049 Circuit arrangement for user stations in a communications network
09/21/1982CA1132235A1 Selectively controlled digital pad
09/21/1982CA1132234A1 Distributed control digital switching system
09/21/1982CA1132233A1 Multiport digital switching element
09/14/1982CA1131739A1 Test arrangement for communication paths in time-division multi-plexed switching systems
09/08/1982EP0059242A1 Circuit arrangement for TDM-telecommunications exchanges, in particular PCM-telephone exchanges with data channels between a central control unit and decentralised control equipment
09/07/1982US4348758 Digital debouncing and storage apparatus for use in a telephone switching system
09/07/1982CA1131334A1 Digital connection network automatic switchboard
09/01/1982EP0059149A1 Time division multiplex switching network for multiservice digital networks
09/01/1982EP0059032A1 Measurement of dye concentration in the bloodstream
09/01/1982EP0058760A1 Circuit arrangement for connecting analog-signal transmitting devices with analog-signal receiving devices through a TDM-data exchange
09/01/1982EP0058750A1 Circuit arrangement for TDM-telecommunications exchanges, in particular PCM-telephone exchanges with data channels between a central control unit and decentralised control equipment
09/01/1982EP0058749A1 Digital switching equipment
08/1982
08/31/1982US4347603 System for exchanging encoded messages between stations
08/31/1982US4347601 Method and system for processing coded information transmitted during cyclically successive time frames
08/31/1982CA1130900A1 Time division telephone switching systems
08/31/1982CA1130898A1 Method for testing communication paths
08/25/1982EP0058482A1 Method and apparatus for transmitting data with digitally encoded speech
08/18/1982EP0057758A1 Circuit arrangement for telecommunication exchanges, in particular PCM telephone exchanges, with a time-division multiplex switching arrangement having time-slot multiples
08/17/1982US4345326 Switching network and telecommunications center comprising such a network
08/17/1982US4345325 Message-interchange circuitry for microprocessors linked by synchronous communication network
08/17/1982US4345324 Process and system for error detection in a computer-controlled telephone exchange
08/17/1982US4345273 Broad band switching system
08/17/1982US4345117 Telephone line feed circuit
08/17/1982US4345115 Telephone line interface
08/10/1982US4344170 Time division switching circuit with time slot interchange
08/03/1982CA1129056A1 Method of and an apparatus for a radiotelephone communications system
07/1982
07/28/1982EP0056600A2 Modular structure of PCM-switched distributed control and distributed-diagnostic network
07/21/1982EP0056086A1 Circuit arrangement for telecommunication exchanges, in particular PCM telephone exchanges, with a time-division multiplex switching arrangement with time-slot multiples
07/20/1982US4340962 Circuit arrangement for the synchronization of a digital subscriber station by a digital exchange in a PCM telecommunication network
07/20/1982US4340960 Time division switching system
07/20/1982US4340788 Method of and system for measuring electrical characteristics of circuit elements included in time-sharing telecommunication network
07/20/1982CA1128178A1 Multiplex time division switching network unit of the "time-time" type
07/14/1982EP0055943A1 Transfer bus matrix switching system
07/13/1982US4339818 Digital multiplexer with increased channel capacity
07/13/1982US4339816 Conferencing apparatus and methods for a frequency division multiplex communications system
07/13/1982US4339815 Multiplex connection unit for use in a time-division exchange
07/13/1982US4339633 Modular telecommunications system
07/13/1982CA1127766A1 Time division switching circuit with time slot interchange
07/07/1982EP0055279A1 Arrangement for adjusting an adaptive digital balance filter included in a subscriber unit.
07/06/1982CA1127281A1 Time division digital communication system
07/06/1982CA1127279A1 Expandable digital switching network
06/1982
06/29/1982CA1126833A1 Digital loop synchronization circuit
06/23/1982EP0054120A1 Service integrated transmission system
06/16/1982EP0053674A1 Service integrated digital transmission system
06/16/1982EP0053673A1 Service integrated digital transmission system
06/15/1982US4335455 Method and apparatus for four-wire type transmission of digital message signals
06/09/1982EP0053267A1 Circuit for time-division multiplex exchanges for multi-channel connections
06/09/1982EP0053239A1 Service-integrated digital time-division multiplex transmission system
06/09/1982EP0053238A1 Service-integrated digital transmission system
06/09/1982EP0053236A1 Service-integrated digital transmission system
06/08/1982US4334306 Transparent intelligent network for data and voice
06/08/1982US4334304 Time division multiplex switching network with an associative buffer store of the register counter type
06/08/1982US4334126 Control circuit for concurrently monitoring and controlling functions and frequency modulating status information in a digital data network
06/02/1982EP0052863A1 Addressing device for a register group of a switching exchange
06/01/1982CA1124898A1 Pcm tone signal generator
06/01/1982CA1124879A1 Digital data communication network having differing data transmission rate capabilities
06/01/1982CA1124822A1 Bit-by-bit time-division digital switching network
06/01/1982CA1124821A1 Time-division-multiplexed exchanger
05/1982
05/25/1982US4332026 Multiple data rate digital switch for a TDMA communications controller
05/25/1982CA1124419A1 Temporal connection network and means to palliate breakdowns
05/25/1982CA1124418A1 Digital coin circuit
05/18/1982US4330886 Automatic telephone exchange system for both speech signals and data transfer
05/18/1982US4330869 System of optical telephony
05/18/1982US4330857 Dynamically variable priority, variable position channels in a TDMA burst
05/18/1982US4330854 Apparatus for generating an exchange pulse train for use in a telecommunications system
05/18/1982CA1123939A1 Time-division switching system for multirate data
05/13/1982WO1982001635A1 Improvements in or relating to line interface circuits
05/12/1982EP0051495A1 Ring scheduling apparatus for a digital multiplexed telecommunication system
05/12/1982EP0051494A1 Automatic maintenance and self-test system for a digital multiplexed telecommunication system
05/12/1982EP0051446A1 Improvements in or relating to line interface circuits
05/05/1982EP0050748A1 Analog-/digital subscriber's station
04/1982
04/28/1982EP0050414A1 A digital signal subscriber loop and interface circuit
04/27/1982US4327436 Signal monitoring and controlling system in a time division switching system
04/27/1982CA1122733A1 Method and device for converting an input time junction into an output time junction of a different type
04/20/1982US4326298 Arrangement for signaling in a voice communication system with optically fed components
04/20/1982US4326287 Two wire bi-directional digital telephone link
04/14/1982EP0049670A1 Device to minimize far-end crosstalk between lines with digital time-shared transmission
04/14/1982EP0049428A2 Apparatus for use in telephone communication
04/13/1982CA1121896A1 Private automatic branch exchange telephone system with two data sources sharing a multiplexed data bus
04/13/1982CA1121895A1 Arrangement for conversion of random to fixed data channel format
04/13/1982CA1121894A1 Digital trunk supervisory decoder multiplexor for ground start or e&m signalling on a common t1 span
04/07/1982EP0048853A1 Telephone switching network for digital speech transmission
04/01/1982WO1982001106A1 Digital concentrator
04/01/1982WO1982001094A1 Error monitoring in digital transmission systems
03/1982
03/30/1982US4322845 Demand assignment technique for TDMA satellite communication network
03/30/1982US4322844 Transmitter-receiver synchronizer
03/30/1982US4322843 Control information communication arrangement for a time division switching system
03/30/1982US4322581 Multifunction telephone with message information and control information circuits for connecting stations and common equipment in a telephone network
03/24/1982EP0048129A1 Digital concentrator
03/23/1982CA1120570A1 Time-slot interchange with protection switching
03/23/1982CA1120569A1 Call state processor for a time division switching system
03/16/1982US4320501 Multiplex space switch
03/16/1982US4320497 Method for testing communication paths
03/16/1982CA1120144A1 Digital conference
03/16/1982CA1120125A1 Meter terminal unit for use in automatic remote meter reading and control system
03/02/1982US4317962 Distributed control for digital switching system
03/02/1982CA1119282A1 Microprocessor control complex
02/1982
02/24/1982EP0046351A1 Improvements in or relating to electronic telephone exchanges and optical fibre links for use therein
02/23/1982US4317197 Transparent intelligent network for data and voice
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