| Patents for H04Q 11 - Selecting arrangements for multiplex systems (43,004) |
|---|
| 02/03/1991 | CA2014198A1 Message switching arrangements |
| 01/30/1991 | EP0410712A1 Optical switch |
| 01/30/1991 | EP0410139A2 ATM switching system having dual ATM switch structure |
| 01/30/1991 | EP0410096A2 A wavelength division photonic switch |
| 01/30/1991 | CN1011468B Convertible switched telephone exchange |
| 01/29/1991 | US4989235 Integrated communication system for ensuring effective use of channels |
| 01/29/1991 | US4989202 ISDN testing device and method |
| 01/29/1991 | US4989199 Photonic switch architecture utilizing code and wavelength multiplexing |
| 01/29/1991 | US4988209 Telephone agent management information system |
| 01/24/1991 | WO1991001027A2 Illegal sequence detection and protection circuit |
| 01/23/1991 | EP0409622A2 Communication terminal equipment |
| 01/23/1991 | EP0408561A1 Communication adapter |
| 01/23/1991 | EP0235231B1 Subscriber line card arrangement |
| 01/23/1991 | CN1011375B Digital telephone switching system having message switch with address translation |
| 01/22/1991 | US4987591 Electronic telephone apparatus able to supply sync clock signals reliably, and method of controlling the supply of sync clock signals |
| 01/22/1991 | US4987570 Methods and apparatus for performing time interleaved multiplexed rate adaptation for sub-rate channels in a digital data communication system |
| 01/22/1991 | CA1279393C Digital signal processing system |
| 01/16/1991 | EP0408024A2 Universal ISDN subscriber line connection group |
| 01/16/1991 | EP0276296A4 Current-limiting circuit |
| 01/16/1991 | CN1011277B Protocols for very high-speed optical lens |
| 01/15/1991 | US4985891 ISDN system having subscriber line multiplexer with means for establishing different data links through D-channels on subscriber line and high rate transmission line |
| 01/15/1991 | US4985887 Systems for selecting a transmission control procedure in communications using integrated services digital networks |
| 01/09/1991 | EP0406780A2 Office communication system for transmitting data and/or image information via a switched network |
| 01/09/1991 | EP0406759A2 System for controlling data transmission in an ATM switching network |
| 01/08/1991 | US4984266 Subscriber line card arrangement |
| 01/08/1991 | US4984262 Telephone network |
| 01/08/1991 | US4984237 Multistage network with distributed pipelined control |
| 01/08/1991 | US4984234 Time-division switching system |
| 01/02/1991 | EP0406191A1 Method of througconnecting wideband connections in a digital time switch module between subscribers and a device for carrying out the method |
| 01/02/1991 | EP0405990A2 Message routing |
| 01/02/1991 | EP0405974A2 Holographic operating optical apparatus |
| 01/02/1991 | EP0405899A2 Communication apparatus |
| 01/02/1991 | EP0405830A2 Fully shared communications network |
| 01/02/1991 | EP0405208A2 Multistage network with distributed pipelined control |
| 01/02/1991 | EP0404994A1 Circuit arrangement for local traffic between ISDN-terminals |
| 01/02/1991 | CN1011110B Emergency d.c. power supply with emergency state being indicated by polarity reversal |
| 01/02/1991 | CN1011107B Synchronisation arrangements for digital telecommunications exchange system |
| 12/29/1990 | CA2020095A1 Holographic operating optical apparatus |
| 12/27/1990 | WO1991000678A1 Method of throughconnecting wideband connections in a digital time switch module between subscribers, and a device for carrying out the method |
| 12/27/1990 | WO1990016121A1 Data switching nodes |
| 12/27/1990 | EP0404063A2 Subscriber line interface circuit in a switching system |
| 12/27/1990 | EP0403998A1 Architecture of a private telephone installation |
| 12/27/1990 | EP0403663A1 Digital signal multiplexer and separator |
| 12/27/1990 | CA1278362C Cross-connection network using time switch |
| 12/25/1990 | US4980906 Switch-adjunct interface |
| 12/19/1990 | EP0403451A1 A method and arrangement for detecting and localizing errors or faults in a multi-plane unit incorporated in a digital time switch |
| 12/19/1990 | EP0402853A2 Private branch exchange system with attendant console |
| 12/18/1990 | US4979164 Switching system reliability |
| 12/18/1990 | CA1278116C Diagnostic method of equipment and system using the same |
| 12/18/1990 | CA1278042C Optical bus communication system utilizing frame format signals |
| 12/17/1990 | WO1990016132A1 A method and arrangement for detecting and localizing errors of faults in a multi-plane unit incorporated in a digital time switch |
| 12/17/1990 | WO1990016124A1 Key allocation in public communications systems taking account of security gradations |
| 12/13/1990 | WO1990015493A1 Hybrid data communications system |
| 12/12/1990 | EP0401238A1 Communication switching system. |
| 12/12/1990 | EP0366788A4 D channel monitor |
| 12/11/1990 | US4977582 Synchronization of non-continuous digital bit streams |
| 12/11/1990 | US4977556 Packet switching system for a distributed processing ISDN switch |
| 12/05/1990 | EP0401126A1 Self-heterodyning optical signal transmission method and transmission system with switching matrix implementing the method |
| 12/05/1990 | EP0400959A2 Broadband information communications network system with coherent optical data transmission lines |
| 12/05/1990 | EP0400771A2 Special service call routing |
| 12/05/1990 | EP0400394A2 Interface device |
| 12/04/1990 | US4975947 System to share the DSP computation resources |
| 12/04/1990 | US4975946 Convertible switched telephone exchange |
| 12/04/1990 | US4975913 Programmable multiplexing/demultiplexing system |
| 12/04/1990 | US4975903 Digital timeslot and signaling bus in a digital PBX switch |
| 12/04/1990 | US4975901 Network for message switching between a plurality of processing units |
| 12/04/1990 | US4975900 Response delay system of an ISDN terminal in a point to multipoint configuration |
| 12/04/1990 | US4975695 High speed communication processing system |
| 12/02/1990 | CA2018095A1 Self-heterodyne optical signal transmission method and switching matrix transmission system using said method |
| 12/01/1990 | WO1990015510A1 Inter-network connection system |
| 11/28/1990 | EP0399723A2 Improvement in switching system reliability |
| 11/28/1990 | EP0399359A2 Arrangement for testing the transmission characteristics of subscriber line modules and of the digital terminal apparatus connectible to the modules in a communication system |
| 11/28/1990 | EP0399149A2 Method for direct interconnection of ISDN subscriber terminals |
| 11/28/1990 | EP0398876A1 Process for identifying peripheral devices. |
| 11/27/1990 | CA1277046C Method of integrating one or more accessory function modules in telecommunications systems and access circuit for use therewith |
| 11/27/1990 | CA1277041C Switching system control arrangements |
| 11/27/1990 | CA1277017C Fast assignment technique for use in a switching arrangement |
| 11/27/1990 | CA1277016C Communications system having voice and digital data capability and employing a plurality of voice and data buses in main service unit and serial packetized transmission to and from telephones |
| 11/26/1990 | CA2017592A1 Process for the direct connection of terminals connected to digital communications exchanges |
| 11/22/1990 | EP0398680A2 ISDN facsimile apparatus operable as a common terminal adapter for plural non-ISDN facsimile apparatuses |
| 11/22/1990 | EP0398129A2 Control system for a digital telephone exchange |
| 11/22/1990 | EP0398041A2 Switch with a circuit arrangement for testing the speech path interconnection of a coupling device |
| 11/21/1990 | CN1010539B Method and device for exchanging with mixing-type groups |
| 11/20/1990 | US4972465 Switching system reliability |
| 11/20/1990 | US4972407 Time-division switching circuit transforming data formats |
| 11/20/1990 | US4972183 Method for transmitting terminal-specifying program parameter data from a communications installaton to communications terminal equipment |
| 11/14/1990 | EP0397372A1 Network topology for reduced blocking and photonic system implementation thereof |
| 11/14/1990 | EP0397370A2 Network control arrangement for processing a plurality of connection requests |
| 11/14/1990 | EP0397368A1 Method of controlling a space-division switching network |
| 11/14/1990 | EP0397197A2 Synchronous optical transmission system |
| 11/14/1990 | EP0397196A2 Data communication bypass apparatus and method |
| 11/14/1990 | EP0397144A1 Wordwise serial-to-parallel converter circuit |
| 11/14/1990 | EP0397142A1 Parallel frame synchronization circuit |
| 11/14/1990 | EP0397141A2 Sonet transmit signaling translator |
| 11/14/1990 | EP0397140A2 Sonet receive signaling translator |
| 11/13/1990 | US4970723 Communications system |
| 11/13/1990 | US4970721 Resource-decoupled architecture for a telecommunications switching system |
| 11/13/1990 | US4970507 Broadband switching matrix for delay equalization and elimination of inversion |
| 11/09/1990 | WO1990013985A1 An information transmission system |
| 11/09/1990 | CA2055499A1 Information transmission system |