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)
11/1987
11/10/1987US4706240 Switching system having multiple parallel switching networks
11/10/1987CA1229154A1 Remote data link controller having multiple data link handling capabilities
11/10/1987CA1229153A1 Digital remote switching unit
11/10/1987CA1229152A1 Dual rail network for a remote switching unit
11/05/1987WO1987006784A1 Apparatus and method for tdm data switching
11/04/1987EP0243692A2 Distributed voice-data switching on multi-stage interconnection networks
11/04/1987CN87101676A Network for message switching between plurality of processing units
11/03/1987US4704716 Method and apparatus for establishing a wideband communication facility through a communication network having narrow bandwidth channels
10/1987
10/29/1987DE3613051A1 Switching network component for optical signals
10/27/1987US4703478 Burst-switching method for an integrated communications system
10/27/1987CA1228660A1 High capacity spatial connecting network for digital signals
10/21/1987EP0242117A2 Distributed timing control for a distributed digital communication system
10/21/1987EP0241959A1 Broadband space switching network and parallel-series converter and series-parallel converter for use in such a space switching network
10/21/1987EP0241958A2 Broadband/narrow-band switching network of the time-space-time type
10/21/1987EP0241783A2 Digital signal cross-connect system
10/20/1987US4701907 Dynamically reconfigurable time-space-time digital switch and network
10/20/1987US4701755 Data switching system
10/20/1987CA1228414A1 Variable band distributed switching node with dynamic hybrid frame management
10/15/1987DE3609733A1 Method of ordering bursts in ascending sequence in a transmission frame
10/15/1987DE3606846A1 Circuit arrangement for clearing connections in centrally controlled telecommunications switching systems, in particular telephone switching systems
10/14/1987EP0241229A2 A fast assignment technique for use in a switching arrangement
10/14/1987EP0241228A2 Multiple access communication system having loop-check circuitry for switching intraoffice connections
10/13/1987US4700341 Stochastic time division multiplexing
10/13/1987US4700340 Method and apparatus for providing variable reliability in a telecommunication switching system
10/13/1987US4700018 Method and circuit arrangement for the transmission of data signals between two control devices belonging to a loop system
10/13/1987CA1228146A1 Multimode data communication system
10/08/1987DE3628022A1 Testing of echo blocks in TDM telecommunication system - using decentralised process-controller assembling test bit patterns and check output relation to pattern
10/08/1987DE3609890A1 Circuit arrangement for PCM telecommunications switching systems, in particular PCM telephone switching systems, with concentrators with island exchange emergency switching mode
10/08/1987DE3609889A1 Circuit arrangement for telecommunications switching systems, in particular PCM telephone switching systems, with concentrators
10/07/1987EP0240211A2 Switching network
10/07/1987EP0239908A2 Wideband switching system
10/06/1987USRE32516 Loop switching system
10/06/1987US4698841 Methods of establishing and terminating connections in a distributed-control burst switching communications system
10/06/1987US4698803 Burst-switching communications system
10/06/1987US4698802 Combined circuit and packet switching system
10/06/1987US4698801 Digital exchange system
10/06/1987US4698799 Link switch for a burst-switching communications system
10/06/1987CA1227859A1 Alternate paths in a self-routing packet switching network
10/06/1987CA1227857A1 Fast circuit switching system
10/06/1987CA1227856A1 Exchange switch
09/1987
09/30/1987EP0239286A2 Photonic switching
09/30/1987EP0114822B1 Communication arrangements for distributed control systems
09/29/1987US4697276 Apparatus for synchronizing pulse trains in a digital telephone system
09/29/1987US4697263 Time slot arrangements for local area network systems
09/23/1987EP0238257A2 Integrated calling directory
09/23/1987EP0238256A2 Automated message chronicling system
09/23/1987EP0238255A2 The personal computer - as an interface between a telephone station set and a business communication system
09/23/1987EP0238126A1 TST-Type switching system for broadband switching
09/23/1987CN86108890A Method and apparatus for establishing wideband communication facility through communications network having narrow bandwidth channels
09/22/1987US4696000 Nonblocking self-routing packet and circuit switching network
09/22/1987CA1227264A1 Data format arrangement for communication between the peripheral processors of a telecommunications switching network
09/16/1987EP0237247A2 Switching system control arrangements
09/16/1987EP0236796A2 Optical switching system
09/16/1987EP0236779A1 Circuit arrangement for centrally controlled TDM telecommunication exchanges, especially PCM telephone exchanges with connection modules connected to a switching network
09/16/1987EP0112340B1 End-to-end information memory arrangement in a line controller
09/16/1987CN86108509A Method of secured communications in telecommunications systems
09/15/1987US4694487 Controlling multi-fort hunt groups in a distributed control switching system
09/15/1987US4694453 System for adjusting signal transmission timing in time-division multiplexing signal transmission
09/15/1987US4694452 Switching configuration for a telecommunications system in particular a PBX system with subscriber lines, trunk groups, and interface modules
09/15/1987CA1226925A1 Switching system
09/11/1987WO1987005459A1 Network for message switching between a plurality of processing units
09/09/1987EP0236102A2 Apparatus and method for transmitting first and second types of information over a time slot driven bus
09/09/1987EP0236013A2 Call distribution arrangement
09/09/1987EP0235406A1 Network for message switching between a plurality of processing units
09/08/1987US4692932 Triplicated clock distribution device for use when each clock signal comprises a synchonization signal
09/08/1987US4692917 Packet switching system
09/02/1987EP0234666A2 Digital-to-analog converter circuit
09/02/1987EP0234355A1 Circuit arrangement for PCM telecommunication installations, especially PCM telephone exchanges, with a plurality of synchronous clock-controlled transmitters for a common transmission channel
09/01/1987US4691337 Method and apparatus for determining the value of analog voltages occurring on telephone subscriber lines of a digital telephone exchange
09/01/1987CA1226357A1 Parity checking arrangement for a remote switching unit network
08/1987
08/26/1987EP0233518A2 Circuit for the exchange of binary signals, especially for PCM signals
08/26/1987CN87100701A Switching arrangement for communication of digital signals, in particular pcm signals
08/25/1987US4689815 Controlling multi-port hunt groups in a distributed control switching system
08/25/1987US4689789 Method for producing internal connections between two-terminal equipments installed in a bus structure at one and the same subscriber of an integrated services digital communication network
08/25/1987US4689788 Method and apparatus for implementing a cost efficient voice/data communication system with a conventional PBX switch
08/25/1987US4689783 Digital satellite exchange
08/19/1987CN86108038A Switching system having multiple parallel switching networks
08/18/1987US4688214 Switching system control arrangements
08/18/1987US4688212 Centralized image responsive telephone time slot interchange system
08/18/1987US4688211 Telecommunication switching 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
08/18/1987CA1225757A1 Time division switching system
08/18/1987CA1225727A1 Multifrequency tone distribution using a conferencing arrangement
08/12/1987EP0232091A2 Time switch with a dual memory structure-type control memory
08/12/1987EP0231967A1 Switching system
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
08/12/1987EP0231630A2 Transmission equipment
08/12/1987EP0231466A1 Device for the indication of looping in the ringing phase
08/12/1987EP0231202A1 Circuit arrangement to align the pcm groups entering a communication branch point with another
08/11/1987US4686701 Processing sequence calls in a distributed control switching system
08/11/1987US4686670 Method of switching time slots in a TDM-signal and arrangement for performing the method
08/11/1987US4686669 Path hunting in a distributed control switching system
08/11/1987US4686667 Broadband integrated subscriber loop system
08/11/1987US4686620 Database backup method
08/11/1987US4686330 Telephone switching system
08/05/1987EP0231015A1 Coherent photonic telecommunication device
08/05/1987EP0230676A2 Integrated switch
08/05/1987CN87100361A 数据传输设备 Data transmission equipment
08/05/1987CN86108234A Method of operating a telecommunication switching system or the like
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