Patents for H04M 11 - Telephonic communication systems specially adapted for combination with other electrical systems (53,055) |
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11/29/1988 | US4788657 Communication system having reconfigurable data terminals |
11/29/1988 | CA1245761A1 Apparatus for monitoring and displaying activity of an information processing system |
11/24/1988 | EP0268667A4 A telephone line monitoring system. |
11/23/1988 | EP0292355A1 Method for exchanging data according to two formats between a data host and a terminal, and data host for carrying out the method |
11/22/1988 | US4787063 Acquisition and transmission system for a recorder and a computer center |
11/22/1988 | US4787045 Postage meter recharging system |
11/17/1988 | EP0291307A2 Line interface |
11/15/1988 | US4785448 System for communicating digital data on a standard office telephone system |
11/10/1988 | DE3813498A1 System for telemetering (remote metering) the electric power consumption of different loads (consumers) |
11/09/1988 | EP0289590A1 Portable electronic information card and communications system and method |
11/09/1988 | EP0289554A1 Remote transaction system |
11/08/1988 | CA1244537A1 Switching system and method for network having a plurality of terminal control equipment units |
11/03/1988 | WO1988008655A1 Remote confinement system |
11/03/1988 | WO1988008648A1 Method for dynamically allocating data channels on a trunked communication system |
11/02/1988 | EP0289047A2 Bar code generating apparatus for image communication terminal device |
11/01/1988 | US4782512 Interfacing data units to a telephone line |
11/01/1988 | US4782511 Interactive medical laboratory specimen apparatus system |
11/01/1988 | US4782498 Modem with improved handshaking capability |
11/01/1988 | US4782480 Telephone line access apparatus |
10/26/1988 | EP0287570A1 Telephone line interface option module |
10/26/1988 | CN87216023U Automatic telephone answering device for weather forecast |
10/25/1988 | CA1243741A1 Communication system having reconfigurable data terminals |
10/20/1988 | WO1988008183A1 Security system comprising a signal transmitter |
10/18/1988 | US4779269 Efficient transmission mechanism integrating data and non coded information |
10/13/1988 | DE3710091A1 Speech, ringing and opening system |
10/12/1988 | EP0286295A2 Signaling arrangement |
10/11/1988 | US4777646 Communication system |
10/06/1988 | WO1988007796A1 Radio-signal responsive apparatus for controlling mobile equipment |
10/06/1988 | DE3708975A1 Circuit arrangement for transmitting communications signals |
10/04/1988 | US4775987 Broadband digital transmission systems |
09/28/1988 | EP0283473A1 A telemetry terminal. |
09/27/1988 | US4774704 Interface circuit for connecting a digital equipment to a time multiplex link |
09/21/1988 | EP0282567A1 Low voltage and low power detector circuits |
09/20/1988 | US4773080 Data communication equipment |
09/15/1988 | DE3722973C1 Hospital information system |
09/14/1988 | EP0281578A1 Reset and synchronization interface circuit |
09/13/1988 | US4771450 Method and apparatus for converting rotary signals to audiofrequency signals |
09/13/1988 | US4771449 Data station termination circuit |
09/07/1988 | WO1988006823A1 Internal communication system |
09/07/1988 | WO1988006821A1 Digital communications system for an office telephone system |
09/07/1988 | EP0281150A2 A paging system |
09/06/1988 | US4769833 Wideband switching system |
09/06/1988 | US4769719 Facsimile system |
08/31/1988 | EP0279884A1 Telephonic data access and transmission system |
08/30/1988 | US4768144 Method and apparatus for retrieving information distributed over nonconsecutive pages |
08/30/1988 | CA1241470A1 High speed automatic test apparatus especially electronic directory terminals |
08/30/1988 | CA1241378A1 Multi-speed, full duplex modem |
08/25/1988 | DE3712324C1 Monitoring circuit for an ancillary telephone device |
08/17/1988 | EP0278451A2 Facsimile communication having call transfer means |
08/16/1988 | US4764953 Method and apparatus for remote doorbell answering |
08/16/1988 | US4764952 Telecommunications device for reading power meters |
08/16/1988 | US4764922 Data terminal interface circuit to a telephone transmission line |
08/09/1988 | US4763349 Monitoring apparatus using telephone link |
08/09/1988 | US4763191 Dial-up telephone network equipment for requesting an identified selection |
08/09/1988 | CA1240429A1 Communication system |
08/03/1988 | EP0276992A2 Automatic dialer for accessing public network directly or via local network |
08/03/1988 | EP0276296A1 Current-limiting circuit. |
08/02/1988 | US4761811 Data and voice transmission using composite cables and punch-down blocks |
08/02/1988 | US4761646 Method and system for addressing and controlling a network of modems |
08/02/1988 | CA1240084A1 Multi-party line emergency access device |
08/02/1988 | CA1240083A1 Computer access security device |
08/02/1988 | CA1240082A1 Baseband local area network using ordinary telephone wiring |
07/28/1988 | WO1988004807A3 Remote services console for digital data processing system |
07/27/1988 | EP0276167A2 Apparatus and method for flexible data base access |
07/27/1988 | CN88100030A Digitally encoded intercommunication telephone system for neighbourhood telephone service |
07/26/1988 | US4760593 Personal alarm system providing handsfree operation |
07/26/1988 | US4760442 Wideband digital signal distribution system |
07/20/1988 | EP0274954A1 Method for the transmission of information over lines and/or special networks, and installation for carrying out the method |
07/19/1988 | US4759056 Personal-servicing communication system |
07/19/1988 | US4759053 Facsimile/character communication system |
07/19/1988 | US4758833 In a paging system |
07/14/1988 | WO1988005241A1 User data display station |
07/13/1988 | CN87103871A 话音和数据通信系统 Voice and data communications systems |
07/12/1988 | US4757495 Speech and data multiplexor optimized for use over impaired and bandwidth restricted analog channels |
07/12/1988 | CA1239236A1 Time independent data transmission system |
07/12/1988 | CA1239210A1 Pbx security system for monitoring security guard tours |
07/05/1988 | US4756018 Multiple access communication system having loop-check circuitry for switching intraoffice connections |
07/05/1988 | US4755932 Interpreter program for providing commands to a computer application program |
06/30/1988 | WO1988004871A1 Talking device |
06/30/1988 | WO1988004807A2 Remote services console for digital data processing system |
06/29/1988 | CN87201489U Twelve-channel carrier telephone terminating machine with broadcast function |
06/28/1988 | US4754476 Premises page/intercom system utilizing telephone set component |
06/28/1988 | US4754474 Interpretive tone telecommunication method and apparatus |
06/28/1988 | US4754473 Remote telephonic data transcribing system |
06/28/1988 | US4754455 Telephone signal transmission device |
06/21/1988 | US4752951 Method of providing location dependent person locator service |
06/21/1988 | US4752950 Remote control system for franking machines |
06/21/1988 | CA1238435A1 Frequency responsive apparatus for reading a meter over a telephone line |
06/15/1988 | EP0161300B1 Multimode data communication system |
06/14/1988 | US4751726 EKG telemetry base station |
06/14/1988 | US4751698 Serial link adapter for a communication controller |
06/14/1988 | US4751669 Videotex frame processing |
06/08/1988 | EP0269683A1 System for text processing |
06/07/1988 | US4750199 Coordinated multiple telephone station system |
06/07/1988 | US4750170 Line access apparatus for in-band communication |
06/07/1988 | US4750169 Telephone system and method for transmitting digital information |
06/07/1988 | CA1237805A1 Telephone switching system adjunct call processing arrangement |
06/01/1988 | EP0269494A1 Process and device for the remotely controlled editing of a television programme |
06/01/1988 | EP0268667A1 A telephone line monitoring system. |
05/31/1988 | US4748656 Personal computer--as an interface between a telephone station set and a business communication system |