Patents
Sitemap › H04 - Electric communication technique › H04M - Telephonic communication › H04M 11 - Telephonic communication systems specially adapted for combination with other electrical systems
Patents for H04M 11 - Telephonic communication systems specially adapted for combination with other electrical systems (53,055)
11/1984
11/27/1984CA1178729A1 Telephone accessible appliance control system
11/27/1984CA1178683A1 Orderwire communication system
11/13/1984US4482785 Refrigeration monitor system with remote signalling of alarm indications
11/13/1984CA1177984A1 Method and arrangement for signaling the transmission mode of a communication system
11/13/1984CA1177978A1 Call progress signal monitor and method for telephone systems
11/06/1984US4481622 High speed dial-up telephone circuit full duplex data transmission techniques
11/06/1984US4481574 Programmable interface between remote terminals and a computer
11/06/1984CA1177587A1 Method and device for detecting data signals and signalling signals in a telephone channel
10/1984
10/31/1984EP0123430A1 Control system for apparatuses in the environment of a disabled person
10/31/1984EP0123206A2 Telephone set with a call number memory
10/30/1984US4480153 Musical-output adapter for telephones
10/25/1984WO1984004217A1 Simultaneous transmission of speech and data over an analog channel
10/25/1984WO1984004216A1 Simultaneous transmission of speech and data over an analog channel
10/24/1984EP0122888A2 Apparatus for telephonically transmitting ECG signals
10/24/1984EP0122852A1 Modulating relay, particularly for telecommunication equipment
10/23/1984US4479213 Transmission method for transmitting voice and data information over telephone line and device for implementing said method
10/23/1984US4479033 Telephone extension system utilizing power line carrier signals
10/23/1984CA1176769A1 Portable keyboard operated telecommunications system
10/16/1984US4477807 Radio pager with display device
10/16/1984US4477695 Microprocessor operated telecommunications interface for a terminal of an automatic teletypewriter switching service
10/10/1984EP0121291A2 Method of and apparatus for voice communication storage and forwarding with simultaneous access to multiple users
10/10/1984EP0120934A1 Microprocessor operated telecommunications interface for a terminal of an automatic teletypewriter switching service
10/09/1984US4476559 Simultaneous transmission of voice and data signals over a digital channel
10/09/1984US4476348 In an acoustic data coupler
10/09/1984CA1175964A1 Two wire voice and data subscriber loop
09/1984
09/27/1984WO1984003775A1 Automatic measuring and alarm apparatus for radioactivity etc
09/26/1984EP0119589A2 Control device for a subscriber's set of an information system
09/25/1984US4473720 Automatic dialer for telephone numbers with portable module
09/19/1984EP0118512A1 Automatic audience survey system
09/19/1984EP0118507A1 Electronic locating system for persons receiving telephone calls
09/11/1984US4471489 Automatic answer/originate mode selection in modem
09/11/1984US4471165 Portable keyboard operated telecommunications system
09/05/1984EP0117644A1 Digital communication station
09/04/1984US4469917 Time synchronized data transmission system
09/04/1984US4469916 Method and apparatus for detecting signalling and data signals on a telephone channel
09/04/1984CA1173981A1 Telephone alarm system
08/1984
08/29/1984EP0117251A2 Combined bell and telephone intercom installation for doors
08/28/1984CA1173575A1 Communication system
08/22/1984EP0116430A1 Digital communication station
08/21/1984US4467142 System for transmitting emergency calls from persons requiring assistance
08/21/1984CA1173181A1 Circuit arrangement for establishing and terminating a data connection
08/15/1984EP0115675A2 Apparatus for transmitting information via telephone lines
08/14/1984US4465904 Programmable alarm system
08/07/1984US4464542 Multifunctional communication terminal connected to two telephone lines and with partial remote supply
07/1984
07/31/1984US4463351 System for providing several data terminals with access to a digital telephone line
07/31/1984CA1171987A1 Telephone tactile alert system
07/31/1984CA1171986A1 Telemetry system for centrifugal water chilling systems
07/31/1984CA1171985A1 Automatic telephonic user emergency message transmitting apparatus
07/24/1984US4461927 Electrical circuit
07/18/1984EP0113347A1 Remote control device through the telephone network.
07/17/1984US4461013 Frequency modulation transmitter for voice or data
07/17/1984CA1171153A1 Microprocessor based digital to digital converting dataset
07/11/1984EP0113022A2 Videotext system with public terminals
07/11/1984EP0112952A1 Multipoint connection system for subscriber stations
07/10/1984US4458693 Monitoring system
07/04/1984EP0112697A2 Priority coding system
07/04/1984EP0112678A1 A telecommunications system
07/04/1984EP0112666A2 Priority coding apparatus
06/1984
06/27/1984EP0112243A1 Subscriber terminal for a telecommunication and teledistribution system, and digital signal processing method
06/26/1984US4457013 Of a telecommunication system
06/26/1984US4456986 Apparatus for coupling signals to or from a two-wire line
06/26/1984US4456985 Apparatus for coupling signals to or from a two-wire line
06/26/1984US4456925 Television/telephone system with automatic dialing
06/26/1984CA1169985A1 Multiple services system using telephone local loop
06/26/1984CA1169969A1 Dictation system and method
06/20/1984EP0111114A2 Circuit arrangement for a telephone exchange, expecially a private branch exchange with additional data communication
06/19/1984US4455649 Method and apparatus for efficient statistical multiplexing of voice and data signals
06/19/1984US4455453 Apparatus and method for remote sensor monitoring, metering and control
06/19/1984CA1169597A1 Home communications and control system
06/19/1984CA1169540A1 Biologic apparatus
06/13/1984EP0110360A2 Circuit arrangement for composing and separating speech and data during the transmission in a digital switching network
06/12/1984US4454593 Pictorial information processing technique
06/12/1984US4454502 Apparatus for monitoring and signalling system
06/12/1984CA1169170A1 Digital subscriber communication system
06/05/1984US4453041 Method and apparatus for processing coded information received through a telephone line during the non-active intervals of a ringing period
06/05/1984EP0097710A4 Telephonic alphanumeric data transmission system.
06/05/1984CA1168771A1 Remote chalkboard automatic cursor
06/05/1984CA1168770A1 Idle time slot seizure and transmission facilities for loop communication system
05/1984
05/30/1984EP0049276B1 Terminal unit for automatic meter reading system
05/29/1984US4451701 For disseminating information from the data base of a host computer
05/29/1984US4451700 Automatic audience survey system
05/29/1984CA1168389A1 Analogue/digital telecommunications subscriber station
05/22/1984US4450556 Digital signal subscriber loop and interface circuit
05/22/1984US4450555 Device for minimizing far-end crosstalk between half-duplex digital transmission lines
05/22/1984US4450554 Asynchronous integrated voice and data communication system
05/22/1984US4450320 Dialing device with calling number and identification memory and method for using same
05/15/1984US4449247 Local orderwire facility for fiber optic communication system
05/15/1984US4449246 Orderwire communication system
05/15/1984US4449218 Analog/digital telecommunication subscriber station
05/15/1984CA1167570A1 Intelligent interfacing apparatus for the automatic management of a switched or dedicated telecommunication line
05/15/1984CA1167542A1 Data set diagnostic system
05/08/1984US4447872 Alarm data concentration and gathering system
05/01/1984US4446339 Rotary dial decoder
05/01/1984US4446333 Flexible acoustic coupler
04/1984
04/24/1984US4445214 Method of controlling message transmission sequence in multi station communication system
04/17/1984US4443662 Filters comprising reactive components, and a method of determining impedances thereof
04/17/1984CA1165914A1 Apparatus for coupling signals to or from a two-wire line
04/17/1984CA1165913A1 Apparatus for coupling signals to or from a two-wire line
04/12/1984WO1984001480A1 Microprocessor operated telecommunications interface for a terminal of an automatic teletypewriter switching service
04/10/1984US4442540 Data over voice transmission arrangement
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