| Patents for H04Q 11 - Selecting arrangements for multiplex systems (43,004) | 
|---|
| 03/20/1985 | EP0134544A2 Variable band distributed switching node with dynamic hybrid-frame management | 
| 03/19/1985 | US4506356 Service integrated digital transmission system operating in time multiplex | 
| 03/19/1985 | CA1184283A1 Digital switching over pam bus system | 
| 03/19/1985 | CA1184282A1 Digital connection network | 
| 03/19/1985 | CA1184281A1 Telephone switching control arrangement | 
| 03/12/1985 | US4504947 PCM Supervision data reformatting circuit | 
| 03/12/1985 | US4504942 Telephone switching system | 
| 03/06/1985 | EP0133703A2 Digital satellite exchange for subscriber connections | 
| 03/05/1985 | US4503533 Local area communication network utilizing a round robin access scheme with improved channel utilization | 
| 03/05/1985 | US4503532 Multipoint fiber optic junction terminal | 
| 02/27/1985 | EP0133577A1 Data transmission system in a digital transmission network and arrangement for the use of this system | 
| 02/19/1985 | US4500991 Circuit arrangement for the control of the transmission of digital signals, particularly PCM-signals, between stations of a time division multiplex telecommunication network particularly PCM-time division multiplex telecommunication network | 
| 02/19/1985 | US4500986 Asymmetrical time division matrix apparatus | 
| 02/19/1985 | US4500985 Communication path continuity verification arrangement | 
| 02/12/1985 | US4499577 Linear time division multiplexed conferencer for data transfer applications | 
| 02/12/1985 | US4499575 Group of terminal units for a digital exchange | 
| 02/12/1985 | US4499461 Circuit arrangement for centrally-controlled telecommunication exchange systems, particularly for time-division multiplex telephone exchange systems, with information exchange between PBX devices | 
| 02/12/1985 | CA1182548A1 Signal control system | 
| 02/05/1985 | US4497979 Method for processing essential lines in a communication system | 
| 01/29/1985 | US4497054 One-for-N redundancy in a digital switch matrix | 
| 01/29/1985 | CA1181877A1 Successive frame digital multiplexer with increased channel capacity | 
| 01/23/1985 | EP0131818A2 Optical FDM system | 
| 01/23/1985 | EP0131591A1 Activation in a digital subscriber connection. | 
| 01/22/1985 | US4495618 Digital switching network | 
| 01/22/1985 | US4495615 Method and device for controlling a switching network | 
| 01/22/1985 | US4495614 Circuit for interfacing a processor to a line circuit | 
| 01/22/1985 | CA1181512A1 Digital information switching system | 
| 01/17/1985 | WO1985000262A1 Control information communication arrangement for a time division switching system | 
| 01/15/1985 | US4494229 Interconnecting apparatus for a distributed switching telephone system | 
| 01/09/1985 | EP0130431A1 System for digitized voice and data with means to compensate for variable path delays | 
| 01/08/1985 | US4493076 Security system for a distributed control exchange | 
| 01/08/1985 | US4493073 Maintenance of stored program controlled switching systems | 
| 01/02/1985 | EP0129722A1 TDMA System with a communications controller | 
| 01/01/1985 | US4491944 Distributed control time division exchange | 
| 01/01/1985 | US4491837 For transmitting outgoing signals | 
| 12/20/1984 | WO1984005009A1 Method and apparatus for the connection of a closed ring through a telephone exchange | 
| 12/20/1984 | WO1984005003A1 System for switching multirate digitized voice and data | 
| 12/18/1984 | US4489437 Speech synthesizer | 
| 12/18/1984 | US4489412 Signal distribution system for a time-division exchange | 
| 12/18/1984 | US4489222 Telephone line interface | 
| 12/18/1984 | CA1179754A1 Time division multiplex switching network for multi- service digital networks | 
| 12/11/1984 | US4488294 Establishing and supporting data traffic in private branch exchanges | 
| 12/11/1984 | US4488292 PCM-TDM Switching system using time slot multiples | 
| 12/11/1984 | US4488291 Circuit arrangement for setting up a conference call | 
| 12/11/1984 | US4488290 Distributed digital exchange with improved switching system and input processor | 
| 12/11/1984 | US4488288 In a packet communication system | 
| 12/11/1984 | US4488287 Combining and splitting of voice and data from multiple terminal sources and electronic PABX for same | 
| 12/06/1984 | WO1984004833A1 Control channel interface circuit | 
| 12/05/1984 | EP0127570A2 Local communication system with a star network and optical channels | 
| 12/05/1984 | EP0127138A2 Telecommunication system linked to an information processing system | 
| 12/04/1984 | US4486879 Method and apparatus for mixing low-frequency signals transmitted via different time slots towards the same telephone receiver set | 
| 12/04/1984 | US4486878 Digital telephone exchange with means for processing packet-switched data | 
| 12/04/1984 | CA1179045A1 Dual rail time control unit for a t-s-t-digital switching system | 
| 12/04/1984 | CA1179044A1 Dual rail time and control unit for a duplex t-s-t- digital switching system | 
| 11/28/1984 | EP0126484A2 Time switch in a time division switching network | 
| 11/28/1984 | EP0126482A2 Telecommunication system for stream traffic as well as for burst traffic | 
| 11/28/1984 | EP0126413A2 Telecommunication system for stream traffic as well as for burst traffic | 
| 11/28/1984 | EP0126196A1 Asynchronous time-division switching network for point-to-point, merging and broadcast communications | 
| 11/27/1984 | US4485469 Time slot interchanger | 
| 11/27/1984 | US4485468 Control word generation method and source facilities for multirate data time division switching | 
| 11/27/1984 | US4485467 Digital information switch matrix with on-line/off-line diagnostic features | 
| 11/27/1984 | CA1178699A1 Signal distributing device for a temporal automatic switchboard | 
| 11/27/1984 | CA1178698A1 Terminal array for a digital automatic switchboard | 
| 11/21/1984 | EP0125605A2 Channel selection in a switching system having clustered remote switching modules | 
| 11/21/1984 | EP0125604A2 Switching system having remote switching capability | 
| 11/21/1984 | EP0125602A2 Control communication in a switching system having clustered remote switching modules | 
| 11/20/1984 | US4484330 Majority vote circuit | 
| 11/20/1984 | US4484326 Packet load monitoring by trunk controllers | 
| 11/20/1984 | US4484324 Control information communication arrangement for a time division switching system | 
| 11/20/1984 | US4484323 Communication arrangements for distributed control systems | 
| 11/14/1984 | EP0124859A2 Circuit arrangement for connecting a subscriber line to a services integrated digital network (ISDN) | 
| 11/14/1984 | EP0124858A2 Circuit arrangement for connecting a subscriber line to a servies integrated digital network (ISDN) | 
| 11/14/1984 | EP0124591A1 Packet load monitoring by trunk controllers | 
| 11/13/1984 | US4482995 Time division multiplex switching network unit | 
| 11/13/1984 | CA1177984A1 Method and arrangement for signaling the transmission mode of a communication system | 
| 11/06/1984 | US4481621 Service integrated digital signal transmission system | 
| 11/06/1984 | CA1177566A1 Digital communications terminal as a subscriber and/or exchange station in a digital communications installation, more particularly as a terminal for a telephone installation or telephone private branch exchange | 
| 10/31/1984 | EP0123371A1 Multi-processor system | 
| 10/30/1984 | US4480330 Arrangement for digital tone distribution | 
| 10/24/1984 | EP0122684A1 Electronic switching system | 
| 10/23/1984 | US4479212 Conference circuit | 
| 10/23/1984 | US4479034 Control system for a telephone switching system | 
| 10/23/1984 | CA1176768A1 Emergency device for subscriber terminal | 
| 10/23/1984 | CA1176737A1 Dual rail time and control unit for a duplex t-s-t-digital switching system | 
| 10/23/1984 | CA1176736A1 Dual rail time and control unit for a t-s-t-digital switching system | 
| 10/16/1984 | US4477900 Digital communications system | 
| 10/11/1984 | WO1984004015A1 A self-routing switching network | 
| 10/11/1984 | WO1984004014A1 A distributed prioritized concentrator | 
| 10/11/1984 | WO1984004011A1 A wideband digital switching network | 
| 10/10/1984 | EP0121410A1 Bus-configured local area network with data exchange capability | 
| 10/10/1984 | EP0121203A1 Method of controlling the set-up and release of call connexion paths in a TDM telephone exchange | 
| 10/09/1984 | US4476559 Simultaneous transmission of voice and data signals over a digital channel | 
| 10/03/1984 | EP0120806A2 Channel selector circuit for digital bitwise interleaved broadband channels | 
| 10/03/1984 | EP0120495A1 Device for coded data exchange between stations | 
| 10/03/1984 | EP0120324A2 Circuit arrangement for an automatic telephone exchange with "hands free" phones facility | 
| 10/02/1984 | US4475189 Automatic interactive conference arrangement | 
| 10/02/1984 | US4475187 Broad band exchange system to minimize crosstalk using threshold value multiplex circuits | 
| 10/02/1984 | US4475011 Arrangement of interactive telephone switching processors providing selective functional capability by port | 
| 10/02/1984 | CA1175536A1 Time division multiplex telecommunication digital switching module | 
| 10/02/1984 | CA1175535A1 Process for switching time-multiplexed signals transmitted on a carrier, including in particular an optical carrier, and a device embodying this process |