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)
02/1986
02/18/1986CA1200847A1 Public alert and assistance systems
02/13/1986WO1986001060A1 Data transmitting device utilizing a telephone
02/05/1986EP0170272A2 Voice recording card
02/04/1986CA1200330A1 Time slot assignment facilities
01/1986
01/29/1986EP0169726A2 Portable telephones
01/28/1986US4567328 Energy detection circuit for a facsimile system controller
01/28/1986CA1200029A1 Data communication system
01/21/1986US4566030 System for monitoring habits of cooperating television viewers
01/21/1986US4565902 Telephone care system with supplementary alarm message
01/15/1986EP0168039A2 Circuit arrangement for connecting a voice-controlled auxiliary device assigned to a telephone set to a telephone line
01/15/1986EP0167590A1 Communication system having reconfigurable data terminals.
01/08/1986EP0167351A2 Signal multiplexing circuit
01/08/1986EP0166741A1 A digital communications system.
01/07/1986CA1199116A1 Sound-activated code-controlled detection system for telephones and the like
12/1985
12/31/1985CA1198843A1 System for transmitting messages to a telephone set through the subscriber's line in a telephone system
12/31/1985CA1198812A1 Remote dictation transcription system
12/18/1985EP0164611A2 Switching system and method for network having a plurality of terminal control equipment units
12/18/1985EP0164368A1 Multiplexer system for automatic meter reading
12/11/1985EP0164244A2 Local area networks
12/10/1985US4558369 Facsimile connection system
12/10/1985US4558316 Electrical supervisory control and data acquisition system
12/10/1985US4558181 Portable device for monitoring local area
12/03/1985CA1197559A1 Frequency modulation transmitter circuit arrangements for voice or data
11/1985
11/27/1985EP0162634A2 Energy detection circuit for a facsimile system controller
11/27/1985EP0088786B1 Method and arrangement for signaling the transmission mode of a communication system
11/26/1985US4555781 Conversational video system having local network control
11/21/1985WO1985005239A1 Videotex system
11/21/1985EP0161997A1 Apparatus for controlling at least one device from at least one telephone connected to an exchange
11/19/1985US4554418 Information monitoring and notification method and apparatus
11/13/1985EP0160788A2 Apparatus and method for controlling a digital speech filing and retrieval system during playback mode
11/12/1985US4552993 Telephone activation apparatus
11/12/1985US4552992 Analog signal verification circuit
11/12/1985CA1196741A1 Carbon microphone linearization technique
11/05/1985US4551839 Error-protecting system for a two-way asynchronous data transmission
11/05/1985US4551832 Telephone based control system
11/05/1985CA1196432A1 Videocommunication network between videophone terminals and a picture bank
10/1985
10/30/1985EP0159810A1 Broadband digital transmission systems
10/30/1985EP0159351A1 Centerpoint automatic meter reading system
10/30/1985EP0050624B1 Electrical supervisory control and data acquisition system
10/29/1985CA1196116A1 Distributed control system for multiple random access to the transmission line of a local network for speech and data
10/23/1985EP0159158A1 Facsimile system
10/23/1985EP0158767A2 Videotex decoder apparatus
10/22/1985US4549044 Remote telemetry unit
10/08/1985US4546382 Television and market research data collection system and method
10/08/1985US4546213 Modem security device
10/08/1985US4546212 Data/voice adapter for telephone network
10/08/1985US4546211 Telecommunications system
10/08/1985CA1194984A1 Method and apparatus for transmitting an image
10/02/1985EP0082200B1 Processor facilities for integrated packet and voice switching
10/01/1985US4545048 Service integrated digital transmission system
09/1985
09/26/1985WO1985004302A1 Remote subscriber interaction system
09/26/1985WO1985004300A1 Broadband digital transmission systems
09/26/1985WO1985004298A1 Data and voice communications system
09/25/1985EP0155691A2 Paging circuit for exchanges, especially for private branch exchanges
09/24/1985US4543450 Integrated connector and modem
09/17/1985US4542499 Distributed control system for multiple random access to the transmission line of a local network for speech and data
09/17/1985CA1193691A1 Multiple access data communication system control
09/10/1985US4540851 Remote control device using telephone circuit of electric apparatus
09/10/1985US4540849 Meter interface unit for utility meter reading system
09/03/1985US4539676 Bulk/interactive data switching system
09/03/1985US4539557 Combined communication, security and alarm radio system
09/03/1985US4539435 Remote interactive communication system
09/03/1985CA1192993A1 Television/telephone system with automatic dialing
08/1985
08/27/1985US4538176 Buffer memory dispersion type video/audio transmission system
08/27/1985US4538031 Service circuit for a local telephone line
08/20/1985US4536872 Telecommunication system for transmitting data information by means of a digital exchange
08/20/1985US4536619 Ringing signal detection circuit
08/20/1985US4536617 Remotely-activated switching apparatus
08/13/1985US4535454 Multifrequency tone distribution using a conferencing arrangement
08/13/1985US4535441 Communication system for stationary and mobile subscribers
08/13/1985US4535199 Data call transfer preindication
08/13/1985US4535198 Digital terminal keyboard dialing
08/13/1985CA1191922A1 Data accumulator and transponder with power back-up for time of day clock
08/07/1985EP0150886A2 Peritelephone system for telephone set and peritelephone pieces of apparatus
08/06/1985US4533943 Videocommunication network between videophone terminals and a picture bank
08/06/1985CA1191642A1 Personal alarm apparatus
08/06/1985CA1191641A1 Processor facilities for integrated packet and voice switching
08/06/1985CA1191636A1 Pictorial information processing technique
08/06/1985CA1191570A1 Partial band - whole band energy discriminator
07/1985
07/30/1985US4532378 Telephone apparatus capable of inputting character data
07/30/1985US4532377 Data call transfer
07/30/1985CA1191267A1 Microprocessor operated telecommunications interface for a terminal of an automatic teletypewriter switching service
07/24/1985EP0149536A2 Communications system
07/23/1985US4531184 Conversational video system having contact selection control
07/18/1985WO1985003159A1 Control apparatus
07/17/1985EP0148406A2 Telephone equipment with a subscriber set for requesting information for inputting answers and for generating digital coded messages
07/10/1985EP0048746B1 Automatic meter reading system
07/09/1985US4528659 Interleaved digital data and voice communications system apparatus and method
07/09/1985US4528589 Method and system for subscription television billing and access
07/09/1985US4528423 Remote subscriber terminal unit
07/09/1985US4528422 Transparent secondary information transmission system for an information transmission system
07/04/1985WO1985002963A1 Communication system having reconfigurable data terminals
07/04/1985WO1985002959A1 A digital communications system
07/03/1985EP0147160A1 Communication system having reconfigurable data terminals
07/03/1985EP0146894A2 Communications system for transmitting and receiving data and voice signals simultaneously through 2-wire signal lines
07/03/1985EP0146606A1 Test set
07/02/1985US4527235 Subscriber terminal polling unit
07/02/1985US4527015 Security listening system
07/02/1985CA1189939A1 Digital telephone exchange comprising means for processing packet-switched data
06/1985
06/26/1985EP0146372A2 Emergency warning device
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