| Patents for H04Q 11 - Selecting arrangements for multiplex systems (43,004) | 
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| 05/06/1986 | US4587651 Distributed variable bandwidth switch for voice, data, and image communications | 
| 05/06/1986 | US4587650 Method of simultaneously transmitting isochronous and nonisochronous data on a local area network | 
| 05/06/1986 | US4587649 Method of growth of a digital switchblock | 
| 05/06/1986 | US4587381 Line identification apparatus for a telecommunications exchange | 
| 05/06/1986 | CA1204231A1 Time slot arrangements for local area network systems | 
| 05/06/1986 | CA1204230A1 Broadband communication system | 
| 04/30/1986 | EP0179715A1 Interface circuit for connecting a digital equipment with a time-multiplexed link | 
| 04/30/1986 | EP0179629A2 Packet switching system | 
| 04/29/1986 | CA1203876A1 Peripheral control for a digital telephone system | 
| 04/29/1986 | CA1203875A1 Switching system loopback test circuit | 
| 04/24/1986 | WO1986002513A1 Interface circuit for connecting a digital equipment to a time multiplex link | 
| 04/24/1986 | WO1986002512A1 PACKET SWITCHED MULTIPORT MEMORY NxM SWITCH NODE AND PROCESSING METHOD | 
| 04/24/1986 | WO1986002511A1 Load balancing for packet switching nodes | 
| 04/23/1986 | EP0178549A1 Circuit arrangement for telecommunication exchanges, particularly for telephone exchanges with transmitting channels for code signals | 
| 04/22/1986 | US4584680 Use of a tone bus to provide polling and data distribution apparatus for communication system terminal groups | 
| 04/16/1986 | EP0178137A1 Data communication systems | 
| 04/16/1986 | EP0178111A2 Data handling system | 
| 04/15/1986 | US4583218 Control communication in a switching system having clustered remote switching modules | 
| 04/10/1986 | WO1986002226A1 Trunk call processing services for host computer interconnections | 
| 04/10/1986 | WO1986002225A1 Telephone switching system switch processor interface | 
| 04/10/1986 | WO1986002219A1 Telephone switching system adjunct call processing arrangement | 
| 04/10/1986 | CN85108299A Data communication systems | 
| 04/09/1986 | EP0177218A2 Method and apparatus for sharing operators among assistance systems | 
| 04/09/1986 | EP0176953A2 New simultaneous voice and date communications system, with possibility of connection to public or private networks | 
| 04/09/1986 | EP0176526A1 Arrangement for transferring digital data | 
| 04/08/1986 | US4581733 Telecommunication exchange | 
| 04/08/1986 | US4581732 Time-space-time switching network using a closed-loop link | 
| 04/08/1986 | CA1203025A1 Parity checking arrangement | 
| 04/02/1986 | EP0176437A2 Communication switching system | 
| 04/02/1986 | EP0175707A1 Telephone system port communication method and apparatus | 
| 04/01/1986 | US4580291 Method for processing digital signals, and subscriber station for telecommunication and teledistribution | 
| 04/01/1986 | US4580261 System for exchanging encoded messages between stations | 
| 04/01/1986 | US4580259 Switchboard control system | 
| 03/26/1986 | EP0175631A2 Integrated digital network | 
| 03/25/1986 | US4578789 Simultaneous voice and data communication and data base access in a switching system using a tone bus or broadcast mode | 
| 03/18/1986 | US4577312 Arrangement for wideband transmission via a switched network | 
| 03/18/1986 | US4577310 Station interface for digital electronic telephone switching system having centralized digital audio processor | 
| 03/18/1986 | CA1202118A1 Multiprocessor control | 
| 03/18/1986 | CA1202106A1 Channel-by-channel signalling processins device for automatic time-switching exchange | 
| 03/12/1986 | EP0173984A2 System for controlling the ISDN activation sequence | 
| 03/11/1986 | US4575844 Digital switching system | 
| 03/11/1986 | US4575843 Time-division-multiplexing loop telecommunication system having a first and second transmission line | 
| 03/11/1986 | US4575841 Method and apparatus for through-connection testing in a digital telecommunication network | 
| 03/11/1986 | US4575839 Centralized supervisory system | 
| 03/11/1986 | US4575584 Fail-safe digital phone | 
| 03/05/1986 | EP0173274A2 Method and circuit arrangement for realizing and maintaining a time division broadband connection | 
| 03/04/1986 | US4574375 Interface arrangement for a telephone system or the like | 
| 03/04/1986 | US4574374 Multilocation video conference terminal including rapid video switching | 
| 03/04/1986 | US4574373 Digital multiplex device | 
| 02/27/1986 | WO1986001361A1 Time division switching system control arrangement and method | 
| 02/25/1986 | US4573151 Interface unit for telephone system having remote units | 
| 02/25/1986 | CA1201189A1 Pcm switching units | 
| 02/19/1986 | EP0171803A2 Time division exchange for carrying out a loop-back test | 
| 02/19/1986 | EP0171750A2 Integrated services telecommunications system for narrow band and broad band services | 
| 02/18/1986 | US4571721 Composite concentration system | 
| 02/18/1986 | CA1200929A1 Time-switch circuit | 
| 02/18/1986 | CA1200928A1 Broad band network system | 
| 02/18/1986 | CA1200867A1 Multipoint system for interconnecting work stations | 
| 02/13/1986 | WO1986001018A1 Database backup method | 
| 02/12/1986 | EP0171080A2 Integrated services telecommunications system for narrow band services | 
| 02/11/1986 | US4570258 Exchange switch | 
| 02/11/1986 | US4570235 Digital receiver of multifrequency signals with frequency recognition device | 
| 02/05/1986 | EP0170476A2 Data communication network | 
| 02/05/1986 | EP0170423A1 Fail-safe digital phone | 
| 02/04/1986 | US4569063 Digital phase locking arrangement for synchronizing digital span data | 
| 02/04/1986 | US4569060 FSK Coding method and apparatus involving multiples and submultiples of a given frequency | 
| 02/04/1986 | US4569043 Arrangement for interfacing the space stage to the time stages of a T-S-T digital switching system | 
| 02/04/1986 | US4569040 Electronic switching system having a time division multiplex switch controller address by central control unit | 
| 02/04/1986 | US4569017 In a telecommunication system | 
| 02/04/1986 | CA1200332A1 Activation in a digital subscriber connection | 
| 02/04/1986 | CA1200330A1 Time slot assignment facilities | 
| 02/04/1986 | CA1200304A1 Time slot interchanger | 
| 01/29/1986 | EP0169553A2 Digital TDM telephone exchange with a small number of lines, in particular a private branch exchange | 
| 01/29/1986 | EP0169324A1 Switching protocol with retry | 
| 01/29/1986 | EP0169208A1 Self-routing packet switching network. | 
| 01/28/1986 | US4567589 Electronic digital PCM time-division exchange with decentralized architecture | 
| 01/28/1986 | US4567586 Service integrated digital transmission system | 
| 01/22/1986 | EP0169160A2 Programmable feature card | 
| 01/22/1986 | EP0168927A2 Data transmission system | 
| 01/21/1986 | US4566095 Time division multiplex switching network permitting communications between one or several calling parties and one or several called parties | 
| 01/21/1986 | US4566094 Channel selection in a switching system having clustered remote switching modules | 
| 01/15/1986 | EP0167563A1 Time-slot interchanger for fast circuit switching | 
| 01/15/1986 | EP0167520A1 Duplicated time division switching system | 
| 01/14/1986 | US4564940 Broad band network system | 
| 01/14/1986 | US4564938 Digital electronic switching systems | 
| 01/14/1986 | US4564937 Remote data link address sequencer and a memory arrangement for accessing and storing digital data | 
| 01/14/1986 | US4564936 Time division switching network | 
| 01/14/1986 | US4564926 Information memory device with address multiplexing | 
| 01/14/1986 | CA1199432A1 Digital multiplex device | 
| 01/14/1986 | CA1199394A1 Switching system with separate supervisory links | 
| 01/07/1986 | US4563767 Method of phase-synchronizing a transit exchange in a digital telecommunication network | 
| 01/07/1986 | EP0094428A4 Control of dna sequence transcription. | 
| 01/07/1986 | CA1199074A1 Communications network with optical channels | 
| 12/31/1985 | US4562573 Method and apparatus for adjusting channel insertion timing | 
| 12/27/1985 | EP0165462A1 Digital switch module | 
| 12/24/1985 | US4560833 Method and apparatus for signaling an existing telephone communication between picture telephone apparatuses | 
| 12/18/1985 | EP0164652A2 Optical information transmission system in the subscriber region | 
| 12/18/1985 | EP0164611A2 Switching system and method for network having a plurality of terminal control equipment units | 
| 12/18/1985 | EP0164406A1 Fast circuit switching system. | 
| 12/17/1985 | US4559624 Digital concentrator |