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)
10/1989
10/25/1989EP0338658A2 Distributed monitoring system
10/25/1989EP0338654A2 Method and apparatus for controlling communication by a modem over a telephone line
10/25/1989EP0338075A1 Talking device
10/25/1989EP0254743A4 Pay-per-view catv system.
10/24/1989US4876696 Transmission system for transmitting multifrequency signals or modem signals with speech signals
10/24/1989CA1262488A1 Telephone handset with integrated flux coil
10/18/1989EP0337610A2 Facsimile apparatus
10/10/1989US4873715 Automatic data/voice sending/receiving mode switching device
10/10/1989US4873682 Digital key telephone system
10/10/1989US4873662 Information handling system and terminal apparatus therefor
10/10/1989CA1262273A1 Method of and an arrangement for forwarding a customer order
10/10/1989CA1262272A1 Automated message chronicling system
10/05/1989WO1989009528A1 Set-top interface transactions in an impulse pay per view television system
10/05/1989WO1989009414A1 Apparatus and method for mapping the connectivity of communications systems with multiple communications paths
10/05/1989DE3809560A1 Remote-controlled emergency call system
10/03/1989US4872198 Transient signal elimination circuit for telecommunications applications
10/03/1989US4872196 Telephone keypad input technique
10/03/1989US4872195 Remote control unit for radio/television transmitter station
10/03/1989US4872194 Method for transmission of alarm signals utilizing an entrance telephone system
09/1989
09/27/1989EP0334669A2 Method of and apparatus for facsimile communications
09/27/1989EP0334549A2 Method and apparatus for wideband transmission of digital signals between a telephone central office and customer premises
09/26/1989US4870677 Data/facsimile telephone subset apparatus incorporating electrophoretic displays
09/26/1989US4870503 Data communication system
09/26/1989US4870408 Method for dynamically allocating data channels on a trunked communication system
09/26/1989CA1261982A1 Automatic meter reading system
09/26/1989CA1261492A1 Non-powered analog telephone line transmitter system
09/26/1989CA1261491A1 Entrance telephone system utilizing the public subscriber telephone network
09/26/1989CA1261476A1 Methods of installing and assigning control processors in a distributed-control communications system
09/26/1989CA1261087A1 Device for establishing a connection between a telecommunication network and a controllable system, such as a computer system, provided with an access control unit controllablevia a separate network terminal
09/26/1989CA1260641A1 (ds) transmitter
09/26/1989CA1260636A1 Watch pager system and communication protocol
09/26/1989CA1260169A1 Telemetry terminal
09/26/1989CA1260102A1 Modem controller
09/21/1989WO1989008959A1 Method and apparatus for remote commodity transfer control and monitoring
09/21/1989DE3814017C1 Tactile display device for the simultaneous digital transmission of manually generated characters from a transmitter to a receiver
09/20/1989EP0333172A1 Remote control arrangement in a telephonic path for a mono or multifunctional installation
09/20/1989EP0332792A1 Data transmission system connectable to the telephone switched network
09/19/1989US4868863 Apparatus for connecting data processing equipment to a communication network
09/19/1989US4868859 Supervised, interactive alarm reporting system
09/19/1989US4868852 Facsimile machine having an output level adjusting function
09/13/1989EP0332184A2 Protocol integrating videotex communication system
09/13/1989EP0331923A1 Still Picture transmission device
09/13/1989EP0331838A2 Digital key telephone system
09/12/1989US4866772 Communication system
09/12/1989US4866761 Automatic meter reading system
09/12/1989US4866759 Packet network telecommunication system having access nodes with word guessing capability
09/12/1989US4866757 Combined telephone and power distribution system
09/12/1989CA1259387A1 Power transmission arrangement for telecommunications systems
09/08/1989WO1989008364A1 Digital data over voice communication
09/07/1989DE3806134A1 Dictating device with a remote speech and control unit
09/05/1989US4864606 Terminal apparatus with a handset using a four pin connector
09/05/1989US4864603 Method of transmission of information or measurement data and device for using the method
09/05/1989US4864602 PABX-connected facsimile machine
09/05/1989US4864601 Integrated voice data workstation
09/05/1989US4864598 Loop status verification system
09/05/1989US4864567 High throughput data communication system
09/05/1989US4864506 Postage meter recharging system
09/05/1989CA1259121A1 Signal detection and discrimination using waveform peak factor
08/1989
08/29/1989US4862456 High speed modem
08/29/1989CA1258908A1 Simple data input apparatus
08/24/1989WO1989007868A1 Marketing research system for obtaining retail data
08/24/1989DE3826243A1 Centrally controlled information system, including the terminal used therefor
08/22/1989US4860343 Composite cable for use in high frequency data and voice transmission
08/22/1989US4860342 Computer-telephone interface method and apparatus
08/22/1989US4860339 Programmable telephone/dictation terminal and method of operating same
08/22/1989US4860335 Method for notifying of a call arrival
08/22/1989US4860308 Modem communication system having main and secondary channels
08/22/1989EP0289590A4 Portable electronic information card and communications system and method.
08/22/1989CA1258713A1 Process for modifying operation of application program
08/16/1989EP0327961A2 Static-component electronic device associable with individual house-phone sets with additional function of automatic house-phone answering system
08/16/1989CN1034837A Method of asynchronous duplex data communication between two stations relating to specific services to be performed through a common communication channel and a station for implementing the method
08/09/1989CN2042644U Telephone / broadcast remote transfer switch
08/08/1989US4856069 Remote typing system
08/08/1989US4856054 Meter reader
08/08/1989US4856053 Telephone terminal equipment having means for preventing malicious and nuisance transmission
08/08/1989US4856050 Telephone message retrieval system with improved message processor and retrieval console including auto-disabling playback switch
08/08/1989US4856047 Automated remote telemetry paging system
08/02/1989EP0326366A2 Improvements in telephone technician's terminals
08/01/1989US4853954 Dial-up line modem directly compatible with mainframe host having bisynchronous communication protocol
07/1989
07/26/1989EP0325564A1 A method and system for the integrated supply of telematic services and graphic information to user terminals, particularly for advertising purposes
07/26/1989EP0325327A1 Method of asynchronous duplex data communication between two stations relating to specific services to be performed through a common communication channel, and stations for carrying out the method
07/26/1989EP0324975A2 Transmission system for telephone communication or data transfer
07/25/1989US4852160 Channel unit interface circuit
07/25/1989US4852154 Pay-per-view CATV system
07/25/1989US4852152 High impedance signal detection device
07/25/1989US4852151 Modem with call waiting
07/25/1989US4852087 Receiver data gate with automatic gain control
07/25/1989US4852080 Analog front-end circuit for full-duplex communication
07/25/1989CA1257940A1 Automatic personnel monitoring system
07/20/1989EP0227825A4 Electronic information dissemination system.
07/18/1989US4850010 Telemetry terminal
07/18/1989US4850009 Portable handheld terminal including optical bar code reader and electromagnetic transceiver means for interactive wireless communication with a base communications station
07/18/1989US4849811 Simultaneous audio and video transmission with restricted bandwidth
07/13/1989WO1989006462A1 Telephone system/paging system interface
07/12/1989CN1033916A Digital key telephone system
07/11/1989US4847894 Device for aiding maintenance of an electromechanical installation having automatic monitoring and control means
07/11/1989US4847893 Method for monitoring telephone status changes
07/11/1989US4847892 Dial-in data transmission system with standby capability
07/11/1989US4847886 Method for causing large numbers of telephones to dial the same telephone numbers
07/11/1989US4847863 Expandable modular data modem
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