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)
07/1991
07/09/1991US5031207 Method of establishing a data link between a pair of terminals as well as a terminal which is suitable for implementing this method
07/09/1991US5031094 Switch controller
07/03/1991EP0435307A2 Photonic switching system
07/03/1991EP0435032A2 Conference system
07/03/1991EP0434972A2 Method for the integration of ISDN channels within a wide band asynchronous TDM channel for digital switching systems
07/03/1991CN1013074B Time division multiplex (tdm) switching system especially for pulse code modulated (pcm) telephony signals
07/03/1991CN1013069B Multi-link chip
07/02/1991US5029333 Communications system
07/02/1991US5029199 Distributed control and storage for a large capacity messaging system
07/02/1991US5029164 Congestion avoidance in high-speed network carrying bursty traffic
07/02/1991US5029163 Synchronous protocol data formatter
07/02/1991US5029160 Line concentration system
06/1991
06/27/1991WO1991009480A1 Synchronous-asynchronous converter
06/27/1991DE3942139A1 Multiprocessor system e.g. for digital telephone station - performs readiness check of each sub-processor by master processor before assigning addresses
06/26/1991EP0434629A2 Method and apparatus for processing the signalling information within configurable multiplexers
06/25/1991US5027400 Multimedia bidirectional broadcast system
06/25/1991US5027347 Intercom system
06/25/1991US5027345 Digital key telephone system
06/25/1991US5027344 Integrated office controller (IOC)
06/25/1991US5027343 Remote test access system for ISDN testing
06/23/1991WO1991010298A1 Passive optical ring network
06/19/1991EP0433154A1 Synchronous-asynchronous converter
06/19/1991EP0433077A2 Data transfer method
06/19/1991EP0432678A1 High-speed synchronous transmission line access terminal
06/19/1991EP0432315A1 System and method for controlling the access rates of packet switching network stations
06/19/1991CN1012930B Method of and switch for switching information
06/18/1991CA1285054C Time division switching system with time slot alignment circuitry
06/18/1991CA1285020C Direct current power supply with an emergency supply activated by a polarity reversal
06/15/1991CA2019018A1 Method for high speed data transfer
06/14/1991CA2032101A1 Synchronous to asynchronous converter
06/13/1991WO1991008636A1 Isdn dual bus extension phone
06/11/1991US5023869 Method and apparatus for maximizing the transmission capacity of a multi-channel bidirectional communications link
06/11/1991US5023868 Automated call handling apparatus
06/11/1991US5023864 Crossover network utilizing two-dimensional arrays of nodes
06/11/1991US5023863 Optical switching system
06/11/1991US5023612 Illegal sequence detection and protection circuit
06/11/1991US5023604 Communication system
06/08/1991WO1991009479A1 Communications system
06/07/1991CA2024170A1 Isdn dual bus extension phone system
06/05/1991EP0430534A1 Control of non-locally switched telecommunication services
06/04/1991US5022070 Switch-adjunct interface
06/04/1991US5022026 Method of throughconnecting wideband connections in a digital time switch module between subscribers, and a device for carrying out the method
06/04/1991US5022024 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels
06/04/1991US5021777 Mode-selectable communications system
05/1991
05/30/1991WO1991007838A1 Remote access telephone control system
05/29/1991EP0429300A2 System of a plurality of terminal apparatuses respondent to a call in a predetermined order
05/29/1991EP0429262A2 ISDN terminal equipment operating with circuit switching mode and packet switching mode
05/29/1991EP0429046A2 Wavelength division switching system with reduced optical components using optical switches
05/22/1991EP0428407A2 An integrated communications link having dynamically allocatable bandwidth and a protocol for transmission of allocation information over the link
05/22/1991EP0428089A2 Subscriber node of a digital data transmission system
05/22/1991EP0427871A1 Inter-network connection system
05/22/1991CN1051646A Method of cross-connecting stm-1-sigral in multichannel multiplying series
05/22/1991CN1051632A Microprocessor-based digital synchronizer system
05/21/1991US5018191 Special service call routing
05/21/1991US5018141 Circuit for separating voice, data and signaling information
05/21/1991US5018132 SONET 4h byte receiver and filter
05/21/1991US5018130 High-speed optical packet switching system using optical buffer between incoming and outgoing channels
05/21/1991US5018129 Dual rail dilated switching networks
05/21/1991US5018097 Modularly structured digital communications system for interconnecting terminal equipment and public networks, and having operation and reliability programs
05/21/1991US5017915 Method of enhancing communication setup between a communication station and a telecommunications network
05/21/1991US5016960 Hybrid optical Y-junction
05/16/1991WO1991007041A1 Called person identification in telecommunication
05/16/1991CA2029850A1 Integrated communications link having dynamically allocatable bandwidth and a protocol for transmission of allocation information over the link
05/15/1991EP0427689A1 A method and apparatus for switching data information through a digital selector
05/14/1991US5016247 Multihop time assigned speech interpolation (TASI) system for telecommunication networks
05/11/1991WO1991007857A1 A method and apparatus for switching data information through a digital selector
05/08/1991EP0426623A2 A process and a device for speed adaptation for integrated services digital network (ISDN)
05/08/1991EP0426361A2 Coordinated voice and data display in a multiplex communication system
05/08/1991EP0426269A1 Mobile communications system
05/08/1991CN1051278A 异步光通信系统 Asynchronous optical communication system
05/08/1991CN1012608B Telecommunication relay apparatus for telephone exchange system
05/07/1991US5014315 Digital telephone system
05/07/1991US5014306 Voice and data telephone communication system and method
05/07/1991US5014269 Microcomputer integrating a digital subscriber terminal for an integrated service digital network
05/07/1991US5014268 Parallel time slot interchanger matrix and switch block module for use therewith
05/07/1991US5014267 Video conferencing network
05/07/1991US5014266 Circuit switching system for interconnecting logical links between packet switching networks
05/07/1991US5014264 Circuit configuration for telecommunication switching systems, in particular PCM time division multiplex telephone switching systems with a central switching network and peripheral sub-switching networks connected to it
05/07/1991US5014261 System for switching from working units to stand-by units
05/07/1991US5013113 Lossless non-interferometric electro-optic III-V index-guided-wave switches and switching arrays
05/02/1991EP0425163A2 Customer programmable automated integrated voice/data technique for communication systems
05/02/1991EP0425161A2 Customer definable integrated voice/data call transfer technique
05/02/1991EP0425146A2 Apparatus for controlling a digital crossconnect system from a switching system
05/02/1991EP0425145A2 Method and apparatus for providing real-time switching of high bandwidth transmission channels
04/1991
04/30/1991US5012470 Data terminal equipment and data transmission control method
04/30/1991US5012466 Call service initialization arrangement
04/30/1991US5012465 Interconnection system for interconnecting connection units and a central switching facility
04/24/1991EP0423410A1 Method for data transmission on an internal workstation bus, device with an internal bus using this method and adaption circuit for this internal bus
04/23/1991US5010545 Asynchronous time-division multiservice digital satellite center for connecting subscribers
04/23/1991US5009477 Optical interconnect arrangement
04/18/1991WO1991005426A1 Switching node for a communications switching network
04/18/1991WO1991005424A1 Method for terminating an isdn line
04/16/1991US5008930 Customer definable integrated voice/data call transfer technique
04/16/1991US5008884 Private automatic branch exchange system with line accessing number adding feature
04/16/1991CA1283196C Protocols for very high-speed optical lans
04/16/1991CA1283194C Signal switching system
04/10/1991EP0421934A2 Method for information transmission between PCM highways
04/10/1991EP0421652A2 Coordination method for multi-user system conformance testing
04/10/1991EP0421602A2 Hybrid network
04/10/1991EP0421325A1 Asynchronous optical TDM-communication system
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