| Patents for H04M 11 - Telephonic communication systems specially adapted for combination with other electrical systems (53,055) |
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| 06/10/1992 | EP0489215A1 Coupling device to be connected to a DCE for the connection to a public switched telephone network having a local power supply circuit for allowing the use of the local telephone, DCE and workstation including the same |
| 06/10/1992 | EP0489214A1 Coupling device to be connected to a dce for allowing the connection to different public switched telephone networks, dce and workstation including the same |
| 06/10/1992 | CN1061878A Communication terminal used as game machine |
| 06/09/1992 | US5121421 Interactive telephone communication system for hearing-impaired person |
| 06/09/1992 | US5121391 Subscriber RF telephone system for providing multiple speech and/or data singals simultaneously over either a single or a plurality of RF channels |
| 06/09/1992 | US5121385 Highly efficient multiplexing system |
| 06/08/1992 | CA2031790A1 Automatic number announcer with external port |
| 06/06/1992 | CA2054630A1 Coupling device to be connected to a dce for allowing the connection to different public switched telephone networks, dce and workstation including the same |
| 06/03/1992 | EP0488827A1 Interphone |
| 06/03/1992 | EP0488610A2 Communication line backup system |
| 06/03/1992 | EP0488223A2 In-house paying system with abnormal conditions transmitting unit |
| 06/02/1992 | US5119412 Method and a system for remotely switching and/or regulating and monitoring and electrically operated device or an environment by the use of signals generated by a telephone or a modem |
| 06/02/1992 | US5119375 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 06/02/1992 | US5119319 Full-duplex video communication system |
| 06/02/1992 | US5119188 Digital audio-video presentation display system |
| 05/30/1992 | WO1992009955A1 Low cost communication terminal |
| 05/29/1992 | WO1992009166A1 Telephone recording device |
| 05/29/1992 | WO1992009157A1 A communication system and a method for controlling a connection in the communication system |
| 05/27/1992 | EP0487330A2 Image processing system |
| 05/27/1992 | EP0487197A2 Telephone answer supervision and service selection |
| 05/27/1992 | CN2105812U Telephone line transport alarm transmitting system |
| 05/26/1992 | US5117455 Telephone keypad matrix |
| 05/26/1992 | US5117453 Telecommunication system |
| 05/26/1992 | US5117452 Telephone interface for a computer for receiving and transmitting information during the silent interval between ringing |
| 05/26/1992 | US5117286 Video signal and output device for freeze-frame video telephone |
| 05/26/1992 | CA1301843C Method and apparatus for controlling transmission of voice and data signals |
| 05/20/1992 | WO1992009165A1 Reduced time remote access method and system |
| 05/20/1992 | EP0486160A2 Multi-purpose public facsimile transmission terminal |
| 05/20/1992 | CN1061313A Long distance playing machine for chess game |
| 05/20/1992 | CA2051825A1 A method of bit rate adaption using the ecma 102 protocol |
| 05/20/1992 | CA2051821A1 Circuit and method of handling asynchronous overspeed |
| 05/19/1992 | US5115326 Method of encoding an e-mail address in a fax message and routing the fax message to a destination on a network |
| 05/19/1992 | CA1301385C High impedance signal detection device |
| 05/19/1992 | CA1301383C Still picture transmitting system and transmitting apparatus |
| 05/19/1992 | CA1301357C Digital dictation system with voice mail capability |
| 05/19/1992 | CA1301252C Optical communications network |
| 05/14/1992 | DE4136014A1 Lap-top computer with modem control functions and extended unit - determines usage of modem addresses in extended unit and deactivates modem accordingly |
| 05/13/1992 | EP0484330A1 Digital added main line system |
| 05/12/1992 | US5113496 Bus interconnection structure with redundancy linking plurality of groups of processors, with servers for each group mounted on chassis |
| 05/12/1992 | US5113432 Arrangement for connecting a telefax device or a telephone set to a telecommunication line |
| 05/12/1992 | US5113431 Distributed control teleconferencing voice bridge |
| 05/12/1992 | US5113427 Radio-signal-responsive vehicle device control system |
| 05/12/1992 | US5113413 Voter arrangement for multiple site PST RF trunking system |
| 05/12/1992 | US5113396 Interface for isdn channels |
| 05/12/1992 | CA1300736C Hospital digital data transfer system |
| 05/06/1992 | EP0484052A1 Data transmission unit having a plurality of ports |
| 05/06/1992 | EP0483262A1 Paging message interface and missed message retrieval method |
| 05/06/1992 | CN1016557B Emergency reciprocal communication apparatus for elevator |
| 05/06/1992 | CN1016556B Ensemble modem structure for imperfect transmission media |
| 05/05/1992 | US5111502 Telephone line bridging sensor |
| 05/05/1992 | US5111197 Apparatus for allocating subscriber identification numbers to plural service zones in a paging system |
| 04/30/1992 | WO1992007327A1 Telecommunications booth and method of use |
| 04/29/1992 | EP0482142A1 Automatic system for the playback of recorded spoken messages through a telephone line |
| 04/28/1992 | US5109407 Communication device connected to telephone line together with telephone set |
| 04/28/1992 | US5109406 Call control method and apparatus for a switching system |
| 04/28/1992 | US5109404 Telephone call processor with select call routing |
| 04/28/1992 | US5109399 Emergency call locating system |
| 04/28/1992 | CA1299790C System for transmitting low frequency tones through a digital loop carrier system |
| 04/28/1992 | CA1299789C Dc termination circuit for subscriber cables |
| 04/28/1992 | CA1299788C Telephone technician's terminals |
| 04/23/1992 | DE4134107A1 Electronic facsimile transmission system - is for connection to transmission data over telephone line |
| 04/23/1992 | CA2053679A1 Multi-purpose public facsimile transmission terminal |
| 04/22/1992 | EP0481887A2 Communication apparatus having an electronic telephone book function |
| 04/22/1992 | EP0481880A1 Remote monitoring system with simplified management |
| 04/22/1992 | EP0481879A1 Device for emitting signal sequences constituting a payment means |
| 04/22/1992 | EP0481389A2 Facsimile apparatus |
| 04/22/1992 | EP0481170A2 Subscriber interface for a fiber optic communications terminal |
| 04/21/1992 | US5107518 Lockup prevention method and apparatus |
| 04/21/1992 | US5107487 Power control of a direct sequence CDMA radio |
| 04/21/1992 | CA1299273C Communications network and method |
| 04/18/1992 | CA2042281A1 Telephone terminal incorporating speech synthesizer for enhanced communication |
| 04/16/1992 | DE4029430A1 Power=pack for entry phone using mains supply - has transformer and rectifier with transistor output stages coupled to microphone and loudspeaker indoor system |
| 04/16/1992 | CA2053423A1 Simplified management remote monitoring method |
| 04/15/1992 | EP0480129A2 Voice/voice band data discrimination apparatus |
| 04/15/1992 | EP0479950A1 Synchronization and equalization in a tdma cellular system. |
| 04/15/1992 | EP0410987A4 Set-top interface transactions in an impulse pay per view television system |
| 04/14/1992 | US5105443 Inband coding of secondary data |
| 04/14/1992 | CA1298908C Digital, interactive communication system |
| 04/08/1992 | EP0478571A1 Method and apparatus for remotely controlling and monitoring the use of computer software. |
| 04/07/1992 | CA1298678C Line interface circuit |
| 04/07/1992 | CA1298630C Residential fuel-oil level reporting and alarm system |
| 04/01/1992 | EP0477775A2 A communication terminal used as a game machine |
| 04/01/1992 | EP0477281A1 Controller prohibiting data communication until user is verified |
| 03/31/1992 | US5101428 Line control system adapted for a facsimile machine for detecting a busy telephone signal |
| 03/31/1992 | US5101418 Digital time-multiplexed quadrature frequency upconverter |
| 03/28/1992 | WO1992006550A1 Telecommunication display system |
| 03/28/1992 | CA2091259A1 Telecommunication display system |
| 03/26/1992 | DE4121895A1 Remote computer operating device using bar-code facsimile - incorporates laser scanner for continuous monitoring of telefax print-out producing bar codes or OCR-decodable signals |
| 03/25/1992 | EP0324735B1 Automatic voice processing assisted customer information system |
| 03/24/1992 | CA1298002C Paging system |
| 03/24/1992 | CA1297973C Feature telephone integration device |
| 03/18/1992 | EP0475749A2 ISDN terminal having diagnostic function |
| 03/18/1992 | EP0475667A2 Facsimile device for use in ISDN and method of controlling same |
| 03/18/1992 | EP0474701A1 Remote confinement system. |
| 03/18/1992 | EP0387338A4 Method and apparatus for controlling transmission of voice and data signals |
| 03/18/1992 | EP0266355B1 Entrance telephone system utilizing the public subscriber telephone network |
| 03/17/1992 | US5097528 System for integrating telephony data with data processing systems |
| 03/17/1992 | CA1297599C Modem communication system having main and secondary channels |
| 03/11/1992 | EP0474407A1 Telemetry access arrangement |
| 03/10/1992 | US5095503 Cellular telephone controller with synthesized voice feedback for directory number confirmation and call status |