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)
12/1991
12/31/1991US5077727 Broadband information communications network system with coherent optical data transmission lines
12/31/1991US5077483 Network topology for reduced blocking and photonic system implementation thereof
12/31/1991CA1293804C Time switch with a dual memory structure-type control memory
12/31/1991CA1293792C Wideband/multislot switching arrangement
12/27/1991EP0462650A2 Time-division multiplex transmission system
12/27/1991EP0462349A1 Broadband ring communication system and access control method
12/27/1991EP0462294A1 Interface for send and receive access to the synchronous transmission medium of a distributed communication network
12/26/1991WO1991020146A1 Subscriber connection device for a broad-band communications network
12/26/1991WO1991020143A1 Switching element and method for controlling the same
12/19/1991DE4018685A1 Teilnehmeranschlusseinrichtung fuer ein breitband-kommunikationsnetz Subscriber terminal equipment for a wideband communication network
12/18/1991EP0461859A2 Facsimile terminal equipment
12/18/1991EP0461519A2 Optical switching element
12/17/1991US5073980 Photonic switch employing shared data transmission facility
12/17/1991US5073923 Private telephone system with unified command feature
12/17/1991US5073922 Communication terminal apparatus
12/17/1991US5073890 Remote agent operation for automatic call distributors
12/12/1991WO1991019404A1 Device with a plug-in circuit board for the control of data communication
12/11/1991EP0461023A2 Communication method and apparatus
12/11/1991EP0460398A1 Passive optical telecommunication system
12/05/1991DE4017771A1 Data card data transmission control appts.
12/04/1991EP0459927A1 Method of measuring the charge of a multiplexer and circuit arrangement therefor
12/04/1991EP0459005A1 Method and arrangement for the transmission of operational status information between centralised and decentralised devices of a communication system
12/03/1991US5070524 Telephone system
12/03/1991US5070501 Token passing type slotted loop network system with means for enabling high speed access control and simple frame slot stripping
12/03/1991US5070497 Transmission network with switchable network nodes
12/03/1991CA1292816C Telephone system allowing hold releasing request from central office line
11/1991
11/28/1991WO1991018485A1 Code word recognition unit and its use
11/28/1991WO1991018483A1 Data network interface
11/27/1991EP0458628A2 Broad band switching network
11/27/1991EP0457974A1 An optical interconnection arrangement
11/27/1991CN1014950B System for connecting optical lines to wideband telecommunications exchanger
11/26/1991US5068848 Multi-access device
11/26/1991CA1292551C Optical switch
11/20/1991CN1056391A Overvoltage and overcurrent protective circuit with high earth balance
11/19/1991US5067153 Method for transmitting subscriber data in communication systems from one secret subscriber equipment to another
11/19/1991US5067125 Telephone system for isdn and public telephone networks
11/19/1991US5067123 System for controlling data transmission in atm switching network
11/19/1991CA1292334C Double-buffered time division switching system
11/13/1991EP0456624A1 Overvoltage and overcurrent protective circuit
11/13/1991EP0456258A2 Network synchronization unit for a telephone exchange
11/13/1991EP0456206A2 Fault recovery system of a ring network
11/12/1991US5065399 Telecommunication network trouble recovery system
11/12/1991US5065396 Inverse multiplexer and demultiplexer techniques
11/12/1991US5065394 Packet routing switch
11/12/1991US5065151 Video switch exchange with blackout time control
11/12/1991CA1292053C Time-division channel arrangement
11/12/1991CA1292052C Multimedia information exchanging system
11/08/1991WO1991017598A1 An overvoltage and overcurrent protective circuit with high earth balance
11/08/1991CA2078696A1 Overvoltage and overcurrent protective circuit with high earth balance
11/07/1991DE4014396A1 Passive optical communications system for telecommunications network
11/06/1991EP0455108A2 Coherent transmission method, crossconnect apparatus and switching apparatus
11/06/1991CN1014668B Determining terminal port of distribution control switch system using distribution database
11/06/1991CN1014667B Selecting arrangements for multiplex systems
11/05/1991US5063592 Control of non-locally switched telecommunication services
11/05/1991US5063563 Communication terminal having means for controlling power transfer
11/05/1991CA2041747A1 Passive optical telecommunication system
11/05/1991CA1291831C Drop/insert processing circuit
11/05/1991CA1291826C Modular isdn communication system with formation and display of error texts
11/05/1991CA1291806C Switching system and method of construction thereof
10/1991
10/30/1991EP0454558A1 Multi-protocol convertor for connecting a number of asynchronous terminals to a telecommunications network
10/30/1991EP0454344A1 Interleaved receivers
10/30/1991EP0454247A2 ISDN subscriber circuit and interface to be used therefor
10/30/1991CN1055854A Private telephone system with simplified command feature
10/29/1991US5062108 ISDN codeset conversion
10/29/1991US5062105 Programmable multiplexing techniques for mapping a capacity domain into a time domain within a frame
10/29/1991US5062103 Telephone agent call management system
10/29/1991US5061992 Tv phone communication system and apparatus therefor
10/29/1991CA1291549C Method and apparatus for self-healing and self-provisioning networks
10/23/1991EP0453355A2 Congestion avoidance in high-speed network carrying bursty traffic
10/23/1991EP0453129A1 High-speed time-division switching system
10/22/1991US5060305 Self clocked, self routed photonic switch
10/22/1991US5060241 Synchronizing system for a private digital exchange connected to an isdn
10/22/1991US5060227 Digital telephone switch with simultaneous dual PCM format compatibility
10/16/1991EP0452223A2 Telecommunications network with plesiochronous transfer mode
10/16/1991EP0451523A2 Interface for connecting a computer to a digital telecommunications terminal
10/16/1991EP0451400A2 Method and apparatus for reconfiguring interconnections between switching system functional units
10/16/1991CN1014387B Path search in distributed control-exchange system
10/15/1991US5058111 Subscriber line interface circuit in a switching system
10/15/1991US5058104 Tdm demultiplexer with dedicated maintenance channels to indicate high-speed line faults to low speed circuits
10/14/1991CA2040355A1 Telecommunications network with plesiochronous transfer mode
10/14/1991CA2038769A1 Congestion avoidance in high-speed network carrying bursty traffic
10/13/1991WO1991016796A1 Private telephone system with simplified command feature
10/09/1991EP0450819A2 Switching arrangement with broadband and narrowband packet switches
10/09/1991EP0450818A2 Broadband ISDN packet switching arrangements
10/09/1991EP0450725A1 Asynchronous time division multiplex system with a switching network
10/09/1991EP0450708A1 Method and installation for switching packets
10/09/1991EP0450550A2 Communication apparatus with electronic notebook and telephone exchange related to the same
10/08/1991US5056088 Apparatus and method for efficiently coupling digital signals to a communications medium in information packets
10/08/1991US5056086 Apparatus for providing telephonic mass announcement service and methods for use therein
10/08/1991US5056083 Telephone apparatus and a method of controlling same
10/08/1991CA1290474C Cross-connection of wavelength-division-multiplexed high speed channels
10/08/1991CA1290431C Protection switching in a multi-channel communications system
10/03/1991WO1991015066A1 Distributed protocol for improving the survivability of telecommunications trunk networks
10/02/1991EP0448927A1 Procedure for the transmission of time discrete information
10/02/1991EP0448734A1 Circuit arrangement for the routine testing of the interface between transmission groups and the switching network of a PCM telecommunications exchange
10/02/1991DE4010146A1 Packet switching multiplexer - uses multiple stage transputers to provide required cross coupling
10/02/1991CN1014201B Processing sequence calls in distributed control switching system
10/01/1991WO1991015796A1 Optical component
10/01/1991CA2078119A1 Optical component
10/01/1991CA1290044C Broadband signal switching equipment
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