Patents
Patents for H04Q 3 - Selecting arrangements (38,975)
05/1993
05/05/1993EP0540219A2 Telecommunication interconnection testing
05/05/1993EP0539755A2 Very large scale modular switch
05/05/1993EP0465532A4 High speed data packet switching circuit and method
05/04/1993US5208850 Multi-media information service center and multi-media communication system
05/04/1993US5208848 Telecommunications call processing
05/04/1993US5208691 Wavelength-time-space division switching system
05/04/1993CA1317362C Rearrangeable multiconnection switching networks constructed using combinatorial designs
04/1993
04/29/1993WO1993008666A1 Method for the non-hierarchical routing of traffic in a communications net
04/28/1993EP0539105A2 Automatic customer call back for automatic call distribution systems
04/28/1993EP0539104A2 Home agent telecommunication technique
04/28/1993EP0539102A2 Use of incoming caller line indentification
04/28/1993EP0539101A2 Calling line identification
04/28/1993EP0539016A2 Data packet switch apparatus
04/28/1993EP0538853A2 Distributed control of telecommunication network for setting up an alternative communication path
04/27/1993US5206902 Network signaling arrangement for controlling tandem network functions
04/27/1993US5206901 Method and apparatus for alerting multiple telephones for an incoming call
04/27/1993US5206900 Automated attendant
04/27/1993US5206899 Arrangement for outbound telecommunications
04/27/1993US5206753 Optical switching system
04/27/1993US5206497 Free-space optical switching apparatus
04/27/1993CA1317013C Commutation grid
04/22/1993DE4134477A1 Controlling engagement direction within exchange conductor bundle - using traffic direction memory for conductor engagement facility in each engagement direction
04/21/1993EP0537821A2 Management system for hierarchical network
04/21/1993EP0537153A1 Routing of network traffic using discrete traffic measurement data
04/21/1993EP0393126B1 Routing of network traffic
04/21/1993EP0334954B1 Layered network
04/20/1993US5204982 Method and apparatus for digital switching of fm signals with reduced crosstalk
04/20/1993US5204955 Network management method and system
04/20/1993US5204895 Data communicating apparatus which selects analog or digital communication in accordance with the destination number
04/20/1993US5204857 ATM exchange system
04/17/1993WO1993008658A1 Packet switch
04/15/1993WO1993007722A1 Congestion tuning of telecommunications networks
04/15/1993WO1993007721A1 A telecommunication system and a method for matching the numbering schemes of two telecommunication systems
04/15/1993WO1993007699A2 Broadband input buffered atm switch
04/15/1993WO1993007694A1 Method for integrated services satellite network resource allocation by advance reservation
04/14/1993EP0536949A2 An incoming communications forwarding technique utilizing a called party location indicator
04/14/1993EP0536919A2 Efficient single-hop directional multichannel system
04/14/1993EP0536183A1 Line interface circuit.
04/13/1993US5202885 Atm exchange with copying capability
04/13/1993CA1316277C Loop status verification system
04/13/1993CA1316242C Control system for communication between units
04/07/1993EP0536041A1 Method for the dynamic allocation of subscribes to the central station of an optical communication network
04/07/1993EP0535858A2 Selection of transmission facilities using optical wavelength division multiplexing
04/07/1993EP0535857A2 Communications network class-of-service routing
04/07/1993EP0535762A1 Method for resource allocation by anticipated reservation in a satellite network with service integration
04/07/1993EP0535602A2 Programm-controlled communications system in which a connection request is simultaneously signalled at several communications terminals
04/07/1993EP0535270A1 Operations monitoring system
04/07/1993EP0535050A1 Switching element and method for controlling the same.
04/06/1993US5200990 Method of recovering speech path of pre-engaged call on restarting keyphone exchange system
04/06/1993US5200989 Wide band communication system transmitting video and audio signals among a plurality of users
04/06/1993US5200746 Switching module for digital cross-connect systems
04/06/1993CA1315863C Switch path reservation arrangement
04/05/1993CA2079765A1 Optical system for connecting subscriber terminals to a telecommunications network local exchange
04/01/1993WO1993006680A1 Configurable telephone interface for electronic devices
04/01/1993DE4134207C1 Loading double-computer standby system - preparing passive computer for loading and taking new software from data source for entering into memory of active computer
04/01/1993DE4132146A1 Controlling subscriber terminals to establish connection - using central control for conversion of pulse into message for answering machine when calling subscriber hangs up
03/1993
03/31/1993EP0534785A2 Broadcast system for distributed controlled switching network
03/31/1993EP0534784A2 Distributed controlled switching network for telephone communications
03/31/1993EP0534232A1 An apparatus and method for connecting inter-SRM highways
03/31/1993EP0533900A1 Low delay or low loss cell switch for atm.
03/31/1993CA2052498A1 System for interfacing telephone sets with a centrex system
03/30/1993US5199088 Fiber optic switch with spatial light modulator device
03/30/1993US5199071 Modem mode matching method with pbx dial-in
03/30/1993US5199062 Telephone communications system including a digital telephone switch, a voice response unit and a stored program sequence for controlling both the switch and the voice response unit
03/30/1993US5198808 Matrix switch apparatus with a diagnosis circuit having stand-by ports and reduced size matrix switching elements
03/30/1993CA1315374C Self-routing switch and its routing method
03/24/1993EP0533510A2 Cordless key telephone system with multiple tenant facility
03/24/1993EP0533509A2 Cordless key telephone system for repeating attempts to alert stations located in interference-affected zones
03/24/1993EP0532792A1 Digital telecommunications exchange
03/24/1993EP0532726A1 Switching arrangement for public switched telephone and public radio mobile networks
03/23/1993US5197097 Cell signal processing circuit and optical switch apparatus using the same
03/23/1993US5196733 Crosstalk-resistant multi-input to single output analog switching device
03/18/1993WO1993005621A1 Optical switching in a fiber communication system
03/18/1993WO1993005483A1 Telephonic-interface lottery system
03/18/1993WO1993004598A1 Carotenoid composition
03/18/1993DE4129965A1 Conference circuit and bidirectional signal interface - uses input and output stages coupled via signal bus and mixer stage.
03/17/1993EP0532102A2 System for controlling data access to a data apparatus
03/17/1993EP0531663A2 Heterogeneous ports switch
03/17/1993EP0531573A1 Method for access with verification of autorization to temporarily allocatable memory areas in a data base of a program controlled communications exchange
03/16/1993US5195184 Method and system for high speed data transfer
03/16/1993US5195131 Private branch exchange system
03/16/1993US5195129 Switching system for application services
03/16/1993US5195085 Communication link identifier
03/16/1993US5194977 Wavelength division switching system with reduced optical components using optical switches
03/10/1993EP0531268A2 Business communication number
03/10/1993EP0531048A2 A system for providing personalized telephone calling features
03/10/1993EP0531047A2 Optical line monitor
03/10/1993EP0530443A2 Time division multiplex switching system for interconnecting telephone circuits which operate in accordance with different signalling systems and call formats
03/10/1993EP0530345A1 Packet switching communications system
03/10/1993CA2077882A1 Apparatus and method for connecting inter-srm highways
03/09/1993US5193089 Key telephone system
03/09/1993US5193086 Network system having a line switching function
03/09/1993CA1314319C Automatic call distribution system
03/04/1993WO1993004388A1 Improved apparatus and method for aligning optical fibers
03/04/1993WO1992016079A3 Communications switching network
03/04/1993CA2141824A1 Improved apparatus and method for aligning optical fibers
03/03/1993EP0530098A1 Method and arrangement for communication between units of a communication installation
03/03/1993EP0529948A2 Telecommunications call processing
03/02/1993US5191604 Communication apparatus with private branch exchange for communicating with extension or external stations
03/02/1993US5191577 Switch stage number setting apparatus for MSSR channels