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)
07/1985
07/16/1985US4530090 Telecommunications systems with user programmable features
07/16/1985US4530089 Telecommunications digital switchblock utilizing control switch state maps
07/16/1985US4530086 Processor controlled adjustment of line circuit transmission parameters
07/16/1985US4530084 Communications network with optical channels
07/16/1985US4529840 Multilocation video conference terminal including controllable conference location reconfiguration
07/16/1985CA1190675A1 Wide-band communications system
07/16/1985CA1190633A1 Arrangement for multiple custom calling
07/10/1985EP0147865A2 Digital exchange system
07/10/1985EP0147590A2 Switching arrangement for a TDM exchange
07/09/1985US4528659 Interleaved digital data and voice communications system apparatus and method
07/09/1985US4528551 Digital to analog converter employing sigma-delta modulation for use in telephone systems
07/03/1985EP0147359A2 Optical waveguide-switching matrix
07/03/1985EP0146868A1 Signal terminals device for signalling system no. 7
07/02/1985US4527266 Interface circuit for use in a distributed processing switch unit
07/02/1985US4527012 Communications switching system with modular switching communications peripheral and host computer
07/02/1985CA1189939A1 Digital telephone exchange comprising means for processing packet-switched data
06/1985
06/26/1985EP0146293A1 Time-slot interchanger for fast circuit switching
06/26/1985EP0146292A1 Fast circuit switching system
06/25/1985US4525834 Service integrated digital transmission system
06/25/1985US4525831 Interface arrangement for buffering communication information between a transmitting and receiving stage of a time-space-time digital switching system
06/20/1985WO1985002746A1 Apparatus in digital telephone systems
06/20/1985WO1985002737A1 Alternate paths in a self-routing packet switching network
06/20/1985WO1985002736A1 Fast circuit switching system
06/20/1985WO1985002735A1 Time-slot interchanger for fast circuit switching
06/19/1985EP0144351A1 System for switching multirate digitized voice and data.
06/18/1985US4524442 Modularly expandable space stage for a T-S-T digital switching system
06/18/1985US4524441 Modular space stage arrangement for a T-S-T digital switching system
06/18/1985US4524440 Communications system
06/12/1985EP0144077A2 Integrated services digital transmission network
06/12/1985EP0144076A2 Integrated services digital transmission network
06/12/1985EP0144075A2 Integrated services digital transmission network
06/11/1985US4523308 Telephone concentrator switch arrangement
06/11/1985US4523190 Switching system
06/11/1985CA1188738A1 Electronic telephone exchanges and optical fibre links for use therein
06/05/1985EP0143202A2 Digital telecommunication system with subscribers' loops in a star configuration
06/04/1985US4521881 Data communication system with increased effective bandwidth
06/04/1985US4521880 Time-slot interchanger for fast circuit switching
06/04/1985US4521879 Digital private branch exchange
06/04/1985CA1188425A1 Information memory devices
06/04/1985CA1188395A1 Method and device for controlling a switching network
05/1985
05/29/1985EP0142662A1 Selection arrangement in a channel distributor for digital signals
05/28/1985US4520478 Space stage arrangement for a T-S-T digital switching system
05/28/1985US4520477 Control information communication arrangement for a time division switching system
05/28/1985CA1188003A1 Protection system for a distributed control automatic switchboard
05/28/1985CA1187969A1 Digital loop transceiver for interfacing a digital pabx to a digital subscriber set via a subscriber line
05/23/1985WO1985002311A1 Multimode data communication system
05/22/1985EP0141956A1 Device for transferring and processing data or signalling channels of a group of multiplex lines
05/22/1985EP0141934A1 Circuitry for providing and connecting the ringing voltage for subscriber stations in a time division multiplex exchange
05/21/1985US4519072 Answer supervision system
05/21/1985US4519071 Phase-locked loop and clock circuit for a line switch
05/21/1985US4518989 Buffer memory dispersion type video/audio transmission system with spatially and timewise divided inter-office junction lines
05/21/1985US4518921 Track and hold circuit
05/15/1985EP0141241A1 Method and apparatus to select a station within a group of stations communicating with a main station
05/09/1985WO1985002083A1 Interface channel unit
05/08/1985EP0140142A1 Switching network with inverted grouping, especially for telephone switching systems
05/08/1985EP0140111A2 Method for an end-to-end control for the mixed communication in integrated services digital networks
05/07/1985US4516245 Digital span transmission circuit
05/07/1985US4516239 System, apparatus and method for controlling a multiple access data communications system including variable length data packets and fixed length collision-free voice packets
05/07/1985US4516238 Self-routing switching network
05/07/1985US4516237 Remote data link controller having multiple data link handling capabilities
05/07/1985US4516204 Optical passive bus control system
05/07/1985CA1186762A1 Device for minimizing far-end crosstalk between half- duplex digital transmission lines
05/02/1985EP0138952A1 A self-routing switching network.
05/02/1985EP0138950A1 A distributed prioritized concentrator.
05/02/1985EP0138949A1 A wideband digital switching network.
04/1985
04/30/1985US4514844 In a telecommunications switching system
04/30/1985US4514842 T-S-T-S-T Digital switching network
04/30/1985CA1186397A1 Distributed control temporal automatic switchboard
04/25/1985WO1985001855A1 Plural communication channel protocol support systems
04/24/1985EP0138536A2 Announcement system
04/24/1985EP0138453A2 Interface arrangement for a telephone system or the like
04/24/1985EP0138364A2 Multifrequency tone distribution using a conference arrangement
04/23/1985US4513414 Clocking arrangement for telephone switching system
04/23/1985US4513413 Communication set and method
04/23/1985CA1186077A1 Interleaved digital data and voice communications system apparatus and method
04/23/1985CA1186039A1 Arrangement for multiple custom calling
04/23/1985CA1186038A1 Arrangement for multiple custom calling
04/16/1985US4512017 Digital dual channel communication terminal
04/16/1985US4512016 Digital communication station signaling control
04/16/1985US4512015 Digital time-division switch
04/16/1985US4512014 Time slot multiplex system for the division multiplexing of digital communication signals
04/16/1985US4512012 Time-switch circuit
04/16/1985US4512011 For controlling the communication of information packets
04/16/1985US4511969 Control channel interface circuit
04/16/1985US4511859 Apparatus for generating a common output signal as a function of any of a plurality of diverse input signals
04/16/1985CA1185712A1 Simultaneous transmission of voice and data signals over a digital channel
04/16/1985CA1185711A1 Composite concentration system
04/11/1985WO1985001627A1 Data communication method and circuitry
04/10/1985EP0136749A1 Telephone exchange comprising peripheral control domains
04/09/1985US4510597 Time division switching matrix
04/09/1985US4510596 In a PCM switching system
04/03/1985EP0054024B1 Subscriber line audio processing circuit apparatus
04/02/1985US4509169 Dual rail network for a remote switching unit
04/02/1985US4509168 Digital remote switching unit
04/02/1985US4509166 PCM Communication system and method of operation
03/1985
03/28/1985WO1985001410A1 Duplicated time division switching system
03/27/1985EP0135342A2 Exchange system
03/26/1985US4507780 Digital span frame detection circuit
03/26/1985CA1184639A1 Arrangement for multiple custom calling
03/26/1985CA1184638A1 Arrangement for multiple custom calling
1 ... 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 ... 431