| Patents for H04M 11 - Telephonic communication systems specially adapted for combination with other electrical systems (53,055) |
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| 03/10/1992 | US5095494 Data transmission apparatus |
| 03/07/1992 | CA2050714A1 Telephone line monitoring apparatus and method |
| 03/05/1992 | WO1992003882A1 Dialing editing method and apparatus |
| 03/05/1992 | WO1992003820A1 Unique message recording, playback, and response machine |
| 03/05/1992 | WO1992003789A1 Improvement in system for automatically monitoring copiers from a remote location |
| 03/04/1992 | EP0473507A2 Apparatus for transmitting and receiving an image signal in use of a telephone line |
| 03/04/1992 | CN1059241A Global line interface module construction and telecommunication device employing same |
| 03/03/1992 | US5093856 Apparatus and method for determining incoming call destination with improved security |
| 03/03/1992 | CA1296790C Supervised, interactive alarm reporting system |
| 02/26/1992 | EP0472361A2 Portable personal workstation |
| 02/25/1992 | US5091932 Circuit switching system |
| 02/25/1992 | US5091931 Facsimile-to-speech system |
| 02/25/1992 | US5091930 Enhancement of a personal emergency response system |
| 02/25/1992 | US5091920 Threshold valve control system in a receiver circuit |
| 02/25/1992 | US5091877 Data processing apparatus |
| 02/19/1992 | EP0471537A2 Data communication apparatus |
| 02/19/1992 | CN1058867A Private telephone automatic calling receiving method and equipment |
| 02/18/1992 | CA1296115C Method and apparatus for identifying words entered on dtmf pushbuttons |
| 02/15/1992 | WO1992003884A1 A computer keyboard |
| 02/15/1992 | CA2089000A1 Computer keyboard |
| 02/12/1992 | EP0470126A1 Digital radio communication system and two way-radio. |
| 02/12/1992 | CN2096175U Automatic lighting device |
| 02/08/1992 | CA2022750A1 Dialing pulse signature recognizing method and device |
| 02/07/1992 | WO1992003007A1 Portable office cordless telephone |
| 02/04/1992 | US5086470 Scrambling in digital communications network using a scrambled synchronization signal |
| 02/04/1992 | US5086462 Terminal repeater having a function for repeating DC loop signal |
| 02/04/1992 | US5086455 Facsimile arrangement having automatic answering telephone set and facsimile set and switching process therefor |
| 02/04/1992 | US5086454 Direct connect modem deriving power from telephone line |
| 02/04/1992 | US5086453 Apparatus for communicating data via a telephone |
| 02/04/1992 | US5086450 Emergency intercommunication system for elevator |
| 01/27/1992 | WO1992002099A1 Cellular telephone controller with synthesized voice feedback |
| 01/23/1992 | DE4023298A1 Establishing data connection via telephone network - forming connections between subscribers in digital telephone network using interface CCITT-X-21 and terminal adaptors |
| 01/22/1992 | EP0467094A2 Telemetry monitoring method and device therefor for transmitting information by means of asynchronous transfer mode technique in broadband ISDN |
| 01/22/1992 | EP0358688A4 Method for dynamically allocating data channels on a trunked communication system |
| 01/22/1992 | CN1058124A Terminal adapter in digital network of comprehensive service |
| 01/15/1992 | EP0466590A1 Digital communication system for an integrated services telephone installation |
| 01/15/1992 | EP0465542A1 Entertainment systems |
| 01/15/1992 | CN2093481U Automatic change-over device for facsimile and telephone |
| 01/15/1992 | CN2093480U Trackable automatic alarm telephone |
| 01/15/1992 | CN1057936A Capacity extended digital and analog mixed transmission method |
| 01/15/1992 | CN1057934A Automatic switching device for facsimile and telephone |
| 01/14/1992 | US5081680 Initial reporting of remotely generated data |
| 01/14/1992 | US5081673 Voice bridge for relay center |
| 01/11/1992 | WO1992001347A1 Digital communication system for integrated services telephone installations |
| 01/09/1992 | WO1992000654A1 A method for encoding and broadcasting information about live events using computer simulation and pattern matching techniques |
| 01/09/1992 | DE4021206A1 Two=way communication system - provides link between door located microphone and loudspeaker and telephone to serve as entry phone |
| 01/08/1992 | EP0465178A2 Device for detecting a plurality of frequencies sent from an exchange |
| 01/08/1992 | EP0465011A2 Method of encoding an E-mail address in a fax message and routing the fax message to a destination on a network |
| 01/08/1992 | EP0259447B1 Telecommunication network and methods relating thereto |
| 01/07/1992 | CA2086822A1 Paging system |
| 12/31/1991 | US5077788 System and method for processing telephone communication |
| 12/31/1991 | US5077787 Data communication apparatus |
| 12/26/1991 | WO1991020151A1 Telephone alarm monitoring system |
| 12/26/1991 | WO1991020141A1 Communications-transmission system |
| 12/22/1991 | WO1991020147A1 Telephone paging system for connecting calling and paged parties |
| 12/22/1991 | CA2085905A1 Telephone paging system for connecting calling and paged parties |
| 12/19/1991 | DE4018544A1 Testing emergency call system with subscribers - generating preset number of test pulses within preset time interval and transmitting to evaluator circuit |
| 12/18/1991 | EP0461107A1 A system and device for data transmission, and related method |
| 12/18/1991 | EP0345337A4 System for interfacing an alarm reporting device with a cellular radio transceiver |
| 12/17/1991 | US5073929 Voice-data telephonic control system |
| 12/17/1991 | US5073924 Telephone line noise filter apparatus |
| 12/17/1991 | US5073921 Line connection switching apparatus for connecting communication line in accordance with matching result of speech pattern |
| 12/17/1991 | US5073899 Transmission system for sending two signals simultaneously on the same communications channel |
| 12/17/1991 | US5073890 Remote agent operation for automatic call distributors |
| 12/17/1991 | CA1293328C Remote services console for digital data processing system |
| 12/12/1991 | WO1991019404A1 Device with a plug-in circuit board for the control of data communication |
| 12/11/1991 | CA2018661A1 Telephone alarm monitoring system |
| 12/10/1991 | CA1293041C Automatic voice processing assisted customer information system |
| 12/10/1991 | CA1293040C Building security system |
| 12/05/1991 | DE4017771A1 Data card data transmission control appts. |
| 12/04/1991 | EP0459279A1 Global line interface module construction and telecommunications device employing same |
| 12/04/1991 | EP0459058A2 Inband coding of secondary data |
| 12/04/1991 | EP0458791A1 Payphone system. |
| 12/03/1991 | US5070523 Private automatic business exchange |
| 12/03/1991 | US5070522 Combined signal and power distribution system |
| 12/03/1991 | US5070521 Method and apparatus for call source identification |
| 12/03/1991 | US5070514 Method and apparatus for clearing data path in half duplex modem receiver while maintaining dynamic parameters |
| 12/01/1991 | CA2043115A1 Global line interface module construction and telecommunications device employing same |
| 11/27/1991 | EP0458540A2 Communication apparatus |
| 11/27/1991 | EP0458523A2 A method and apparatus for transmitting/receiving signals in a video phone |
| 11/26/1991 | US5068890 Combined signal and electrical power distribution system |
| 11/26/1991 | CA1292586C Modem-telephone interconnect |
| 11/26/1991 | CA1292556C User terminal for videotex |
| 11/21/1991 | EP0457704A1 Method of preventing lockup of asynchronous modems |
| 11/21/1991 | EP0457602A2 Data security in multi-carrier communication systems |
| 11/21/1991 | DE4015457A1 Fernmess- und stellsystem Telemetry and ordering system |
| 11/20/1991 | CN1056391A Overvoltage and overcurrent protective circuit with high earth balance |
| 11/20/1991 | CN1056387A Safety telephonic communication system for buildings |
| 11/19/1991 | US5066939 Method and means of operating a power line carrier communication system |
| 11/14/1991 | WO1991017632A1 Location identification |
| 11/14/1991 | WO1991017619A1 Device for changing over and restoring automatically telephone circuit |
| 11/14/1991 | WO1991017618A1 Data transmission arrangement |
| 11/13/1991 | EP0456624A1 Overvoltage and overcurrent protective circuit |
| 11/13/1991 | EP0455987A2 Communicating apparatus having dual function of a facsimile and a cordless telephone |
| 11/12/1991 | US5065427 Fax/data call receiving system and method |
| 11/12/1991 | US5065426 Facsimile/telephone controller |
| 11/12/1991 | US5065425 Telephone connection arrangement for a personal computer and a device for such an arrangement |
| 11/12/1991 | US5065254 Facsimile machine and facsimile transmission system |
| 11/12/1991 | CA1292043C Method for dynamically allocating data channels on a trunked communication system |
| 11/11/1991 | WO1991017417A1 Audio-augmented data keying |