Patents
Patents for H04Q 11 - Selecting arrangements for multiplex systems (43,004)
06/1993
06/01/1993US5215710 A glass alloys of magnesium, palladium, platinum, lithium, nickel,barium, calcium, hydrogenation catalysts
06/01/1993CA1318533C Optical switch system
05/1993
05/29/1993CA2083870A1 Method for restoring the sequence of message cells
05/28/1993CA2073560A1 Multi-media serial line switching adapter for parallel networks and heterogenous and homologous computer systems
05/26/1993EP0543714A1 Optical fibre distribution apparatus
05/26/1993EP0543327A1 A synchronous optical multiplexing system
05/26/1993EP0542741A1 Serial array time-slot interchangers
05/26/1993CN1021006C Duplex centerless frequency-deivision multiple access carrier telephone system
05/26/1993CA2082318A1 Message data cell multiplexing apparatus
05/25/1993US5214729 Dynamic optical data buffer
05/25/1993US5214692 Bypass for telephone switching system
05/25/1993US5214691 Key telephone system with virtual private lines
05/25/1993US5214651 Sonet transmit signaling translator
05/25/1993US5214650 Simultaneous voice and data system using the existing two-wire inter-face
05/25/1993US5214645 TDM system and method having time slot request signaling
05/25/1993US5214643 Method for inserting an asynchronous 139,264 kbit/s signal into a 155,520 kbit/s signal
05/25/1993US5214642 ATM switching system and adaptation processing apparatus
05/25/1993US5214638 Digital communication electrical/optical access node having buffer memory matrix for switchable multi-channel bidirectional transmission
05/25/1993CA2004589C Switch components and multiple data rate non-blocking switch network utilizing the same
05/25/1993CA1318408C Method of controlling in a quasi-parallel mode a plurality of peripheral units from a single control unit and a system for implementing this method
05/19/1993EP0542705A2 An arrangement for interface adaptation to a digital telecommunications network
05/19/1993EP0542233A2 Cell switching apparatus and method
05/19/1993EP0542047A1 Communication system
05/19/1993EP0541983A1 Optical local area network system and nodal apparatus used therein
05/18/1993US5212726 Method of combining signals in a telephone conference circuit
05/18/1993US5212691 Private network with means for establishing virtual tie trunks between PBXS through ISDN public network
05/18/1993CA1318043C Simple adapter for multiplexing isdn terminals
05/13/1993WO1993009624A1 Switching methods for satellite communication system
05/13/1993WO1993009623A1 Method for handling data transmission frames of variable length with a channel controller and for writing them to a cyclic buffer memory
05/13/1993CA2121586A1 Switching methods for satellite communication system
05/12/1993EP0541123A2 Remote subscriber control system in a digital line switching system
05/12/1993EP0541119A1 Controller for data transfer between a digital telephone network and a processor controlled terminal
05/12/1993EP0541118A1 Controller for data transfer between a digital telephone network and a processor controlled terminal
05/12/1993EP0373161B1 Switching arrangement and method
05/11/1993US5210826 Data communication apparatus having bandwidth selection capabilities
05/11/1993US5210794 Apparatus and method for establishing crypto conferences on a telecommunications network
05/11/1993US5210762 Sonet pointer interpretation system and method
05/11/1993US5210741 Low cost ISDN switch
05/11/1993US5210740 Line switching equipment for switching a personal line to a backup ISDN line
05/11/1993CA1317662C Method and circuitry for transmission of communications signals in a broad-band communications network
05/11/1993CA1317661C Method and circuitry for transmission of speech signals in a broad-band communications network
05/05/1993EP0540219A2 Telecommunication interconnection testing
05/05/1993EP0540028A2 Packet switching system capable of reducing a delay time for each packet
05/05/1993EP0539761A1 Method and system to detect a faulty channel within a channel group
05/05/1993EP0539758A1 Sonet pointer interpretation system
05/05/1993EP0539755A2 Very large scale modular switch
05/05/1993EP0539540A1 Device for connecting a computer into a telecommunications network, and a procedure for adapting the bit rate in this device.
05/04/1993US5208848 Telecommunications call processing
05/04/1993US5208846 Subscriber loop tester for telephone switching systems
05/04/1993US5208811 Interconnection system and method for heterogeneous networks
05/04/1993US5208806 Isdn terminal equipment operating with circuit switching mode and packet switching mode
05/04/1993US5208805 Method for controlling the communication priority of communication packets and exchange employing the method
05/04/1993US5208803 Circuit for testing digital lines
05/04/1993US5208691 Wavelength-time-space division switching system
05/04/1993CA1317381C Method for controlling address parameters for interconnecting lan and isdn
05/04/1993CA1317361C Communication terminal device
04/1993
04/28/1993EP0539265A1 Telephone arrangement for communications network with fixed and autonomous stations
04/28/1993EP0539130A2 Communication within a data processing system
04/28/1993EP0539105A2 Automatic customer call back for automatic call distribution systems
04/28/1993EP0539028A2 Maintenance termination unit for ISDN
04/28/1993EP0539016A2 Data packet switch apparatus
04/28/1993EP0538853A2 Distributed control of telecommunication network for setting up an alternative communication path
04/27/1993US5206859 Isdn multimedia communications system
04/27/1993US5206858 Transmission method and circuit of virtual container using asynchronous transfer mode
04/27/1993US5206753 Optical switching system
04/23/1993CA2080167A1 Telephony device for a telephony communications network with fixed stations and independent stations
04/21/1993EP0538119A1 Communication method between a digital switch and a plurality of terminals
04/21/1993EP0537743A1 Switching method for a common memory based switching field and the switching field
04/20/1993US5204949 Multi-channel/multi-circuit communication controller
04/20/1993US5204882 Method of operating a communications system
04/20/1993US5204862 TDM slot muting method and apparatus
04/20/1993US5204861 Key telephone system with enhanced connectivity
04/20/1993US5204860 Network terminating terminal apparatus for integrated services digital network
04/20/1993US5204857 ATM exchange system
04/20/1993CA2025969C Transposed multi-channel switching
04/15/1993WO1993007727A1 Dial-up bridging method and apparatus therefor
04/15/1993WO1993007699A2 Broadband input buffered atm switch
04/15/1993WO1993007694A1 Method for integrated services satellite network resource allocation by advance reservation
04/15/1993DE4224072A1 Data communication processor for hierarchical system - has single chip data processor with on chip memory and interfaces coupled to second and third level protocol ROM modules
04/15/1993DE4133989C1 Control device using insertable card - transfers data between digital data transmitting telephone network and processor(s) and subscriber's appts. with digital memory
04/14/1993EP0537036A1 Method for data packet routing in a digital transmission network
04/13/1993US5202964 Interface controller including messaging scanner accessing state action table
04/13/1993US5202883 Digital key stystem architecture
04/13/1993US5202782 Optical communication method and optical communication system
04/13/1993CA1316241C Electronic exchange apparatus synchronized with digital network
04/13/1993CA1316236C Method of and circuit arrangement for synchronizing a digital data transmission arrangement with a network-external clock
04/13/1993CA1316216C Method for inserting an asynchronous 139,264 kbit/s signal into a 155,520 kbit/s signal
04/07/1993EP0535982A2 Transmission circuit for transmitting fixed-length data
04/07/1993EP0535860A2 Congestion control for high speed packet networks
04/07/1993EP0535762A1 Method for resource allocation by anticipated reservation in a satellite network with service integration
04/07/1993EP0535601A2 Method for the establishment of conference connections in a processor controlled communication system
04/07/1993EP0535562A2 Subscriber terminal for ISDN networks
04/07/1993EP0535561A2 Circuit arrangement for transmission of TEMEX data via a PCM2A connecting line
04/07/1993EP0535396A1 Method for the reduction of bit errors in a digital communication system
04/07/1993EP0535050A1 Switching element and method for controlling the same.
04/06/1993US5201045 Arrangement and method of downloading data to a plurality of destinations in a digital telephone system
04/06/1993US5200996 Station controller for multi-line pick-up and automatic monitoring of telephone station moves
04/06/1993US5200994 Communication terminal apparatus and control method with party identification features
04/06/1993US5200952 Adaptive VCP control in integrated services networks
04/06/1993US5199878 Plug-in jack card for normally closed contacts