| Patents for H04Q 11 - Selecting arrangements for multiplex systems (43,004) |
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| 09/28/1991 | CA2034651A1 Distributed protocol for improving the survivability of telecommunications trunk networks |
| 09/26/1991 | DE4109150A1 Local area communications network - feeds synchronisation information along lines extending between independently clocked nodes |
| 09/25/1991 | EP0448461A2 Telephone apparatus |
| 09/25/1991 | EP0448074A2 Synchronization circuit for ATM cells |
| 09/25/1991 | EP0448020A1 Elementary switching unit for cross-connecting digital bit flows by time-multiplexing bit streams of different bit rates |
| 09/25/1991 | EP0447485A1 System for cross-connecting high speed digital signals |
| 09/25/1991 | EP0447461A1 Virtual tributary cross connect switch and switch network utilizing the same |
| 09/24/1991 | US5051992 Data link control method and system for integrated services digital network |
| 09/24/1991 | US5051983 Method and circuitry for transmission of speech signals in a broad-band communications network |
| 09/24/1991 | US5051982 Methods and apparatus for implementing switched virtual connections (SVCs) in a digital communications switching system |
| 09/24/1991 | US5051979 Method and apparatus for errorless switching |
| 09/24/1991 | CA1289650C Time-division switching system |
| 09/19/1991 | WO1991014323A1 Termination unit for a b-isdn subscriber line |
| 09/19/1991 | WO1991014319A1 Digital data transmission system |
| 09/18/1991 | EP0447212A1 Voice and video communication apparatus |
| 09/18/1991 | EP0446956A2 An ATM transmission system with a variable transmission rate |
| 09/18/1991 | EP0446884A2 Circuit arrangement for conversion of signalling and information between analog trunks and digital line circuits in a communications switch exchange |
| 09/18/1991 | EP0446855A2 Multichannel communication processing system |
| 09/18/1991 | EP0446827A1 Terminal installation for asynchronous network |
| 09/18/1991 | EP0446586A2 ATM-exchange |
| 09/17/1991 | US5050190 Signal detection circuit not affected by minute voltage fluctuations contained in input signal and operation method therefor |
| 09/17/1991 | US5050164 Optical customer premises network |
| 09/17/1991 | US5050005 Facsimile apparatus |
| 09/17/1991 | US5049877 Broadband switch matrix with non-linear cascading |
| 09/17/1991 | CA1289252C Isdn interface trunk circuit |
| 09/13/1991 | CA2038092A1 Terminal service facility for non-synchronous system |
| 09/11/1991 | EP0445803A2 Method and apparatus for data transfer and circuit setting for communication network system |
| 09/11/1991 | EP0445532A1 ISDN multimedia communications system |
| 09/11/1991 | EP0445251A1 Digital telecommunications device |
| 09/10/1991 | US5048012 Data link controller with flexible multiplexer |
| 09/10/1991 | US5048010 Communication control processor |
| 09/10/1991 | US5047923 Modularly structured digital communication system for interconnecting terminal equipment and public networks |
| 09/10/1991 | CA1288848C Hybrid time multiplex switching system |
| 09/10/1991 | CA1288847C Call control of a distributed processing communications switching system |
| 09/10/1991 | CA1288831C Bus interface loading assembly |
| 09/03/1991 | US5046188 Data interface for telephone system |
| 09/03/1991 | US5046183 Semi-automated operator assistance telecommunication calls |
| 09/03/1991 | US5046067 Digital transmission system |
| 09/03/1991 | US5046064 Packet switching system |
| 09/03/1991 | US5044745 Semiconductor optical switch and array of the same |
| 08/29/1991 | DE4006074A1 Exchange of signalling data within communication terminal - uses existing, internal signalling channel between individual terminals components |
| 08/28/1991 | EP0443482A1 Arrangement for linking digital terminals to a single, higher speed port |
| 08/28/1991 | EP0443029A1 Signal generator and signal receiver based on synchronous multiplex transmission system |
| 08/28/1991 | CN1054158A Synchronous-asynchronous converter |
| 08/27/1991 | US5043983 Time and charges information delivery for operator assistance telecommunication calls |
| 08/27/1991 | US5043979 Time-division channel arrangement |
| 08/27/1991 | US5043978 Circuit arrangement for telecommunications exchanges |
| 08/27/1991 | US5043977 Method and a circuit arrangement for setting the subscriber line dummy impedances of programmable hybrid circuits |
| 08/27/1991 | US5043884 Communications installation with communications terminal equipment provided with prescribed functions defined and controlled by a communications installation with information transmission |
| 08/27/1991 | CA1288154C Signal transfer arrangement |
| 08/27/1991 | CA1288153C Response system of a terminal to an incoming call |
| 08/22/1991 | DE4004889A1 Asynchronous time division multiplex transmission system - with storage of incoming cells during comparison of path information for selecting outgoing line |
| 08/21/1991 | EP0442581A2 Asynchronous time division multiplex communication system |
| 08/21/1991 | EP0441980A1 Time-division multiplex data relay exchange system |
| 08/20/1991 | US5042062 Method and apparatus for providing real-time switching of high bandwidth transmission channels |
| 08/20/1991 | US5042038 Data path checking system |
| 08/20/1991 | US5042028 Communication terminal device |
| 08/20/1991 | US5040864 Optical crosspoint switch module |
| 08/13/1991 | US5040208 Coordinated voice and data display having temporary storage of transaction data |
| 08/13/1991 | US5040174 Time division speech path apparatus |
| 08/13/1991 | US5040172 Communication method utilizing channel highway and digital communication apparatus for realizing the same |
| 08/13/1991 | US5040170 System for cross-connecting high speed digital signals |
| 08/13/1991 | US5040169 Wavelength division photonic switch |
| 08/13/1991 | US5039986 High speed dynamic allocator for various length time slots |
| 08/13/1991 | CA1287679C Controlling key-system groups from a distributed control switching system |
| 08/13/1991 | CA1287678C Circuitry for connecting multistage coupling fields and intermediate lines |
| 08/08/1991 | DE4002862A1 Broadband PABX for video, audio and data communication - includes narrow band-broadband signalling adaptor modules and connection computer for control of broadband switch matrix |
| 08/08/1991 | DE4002861A1 Signalling circuit for connection state of broadband PABX |
| 08/07/1991 | EP0440063A2 Broadband pabx |
| 08/07/1991 | EP0440062A2 Connection state recognizing in a broad band private communication exchange |
| 08/07/1991 | CN1013467B Operating method of wideband/multislot switching apparatus |
| 08/06/1991 | CA1287391C Electro optical switch architectures |
| 08/06/1991 | CA1287390C Method for management of logical channels for isdn packet service |
| 08/02/1991 | CA2035376A1 Broadband private automatic branch exchange |
| 08/01/1991 | DE4002455A1 TDM signal path connection network with permutation selection - incorporates switching elements clocked at controlled rate corresp. to permutations among input and output signal positions |
| 07/31/1991 | EP0439098A2 Packet switching system having self-routing switches |
| 07/30/1991 | US5036513 Method of and apparatus for integrated voice (audio) communication simultaneously with "under voice" user-transparent digital data between telephone instruments |
| 07/30/1991 | US5036318 Modular ISDN communication system with formation and display of error texts |
| 07/30/1991 | CA1287182C Dynamic buffer supervising system for a data link access protocol control |
| 07/30/1991 | CA1287150C Synchronisation arrangements for a digital telecommunications exchange system |
| 07/25/1991 | DE4040813A1 Communicatons installation transferring information via interface - contains combination of control unit and transputer (RTM)-based connector unit and measurement modules |
| 07/25/1991 | CA2034695A1 Packet switching system having self-routing switches |
| 07/24/1991 | EP0438153A2 Optical communication method and optical communication system |
| 07/24/1991 | EP0437515A1 Integrated telecommunication system with improved digital voice response |
| 07/23/1991 | US5034948 Telephone apparatus system |
| 07/23/1991 | CA1286761C Rearrangeable multiconnection switching networks employing both space division and time division switching |
| 07/23/1991 | CA1286751C Switching arrangement |
| 07/17/1991 | EP0437350A1 Distributed concentrating telecommunications system |
| 07/17/1991 | EP0437199A2 Communication terminal including memory |
| 07/17/1991 | EP0437197A2 Digital cross connection apparatus |
| 07/17/1991 | EP0436958A2 Cell signal processing circuit and optical switch apparatus using the same |
| 07/17/1991 | EP0436799A2 Communication network with key distribution |
| 07/17/1991 | CN1013238B Communication switching system |
| 07/17/1991 | CN1013237B Trunk arrangement connected exchange network for central control |
| 07/16/1991 | US5033079 Establishment of facsimile calls |
| 07/13/1991 | CA2033830A1 Communication terminal including memory |
| 07/10/1991 | EP0436345A2 Voice and image communicating apparatus |
| 07/10/1991 | EP0436293A2 Inverse multiplexer and demultiplexer techniques |
| 07/10/1991 | EP0436292A2 Programmable multiplexing techniques for mapping a capacity domain into a time domain within a frame |
| 07/10/1991 | CN1052981A Statistical measurement equipment and telecommunication system using same |