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)
01/1988
01/12/1988	US4719647 Telephone message retrieval system with improved processor and retrieval console
01/12/1988	CA1231477A1 Communication system with operation-procedure guiding function by speech
01/12/1988	CA1231385A1 Mobile telephone system for automatically paging absent mobile subscriber
01/07/1988	EP0251593A2 Power source control system for data terminal equipment
01/07/1988	EP0251296A2 Portable communication terminal for remote data query
01/07/1988	DE3721047A1 Communication control method using a multifunctional communication terminal
01/05/1988	US4718082 Modem for effecting full duplex asynchronous/synchronous digital data communications over voice grade telephone link
01/05/1988	US4718079 Remote unit monitoring system
12/1987
12/30/1987	WO1987007993A1 Automatic meter reading system
12/29/1987	US4716585 Gain switched audio conferencing network
12/29/1987	US4716583 Verbal computer terminal system
12/29/1987	US4716582 Digital and synthesized speech alarm system
12/29/1987	US4716562 Telephone system
12/29/1987	CA1230949A1 Signal multiplexing circuit
12/22/1987	US4715061 Coordinated multiple telephone station system
12/22/1987	US4715060 Door message apparatus with telephone answering device
12/22/1987	US4715059 Conversational video phone
12/22/1987	US4715044 Automatic synchronous/asynchronous modem
12/22/1987	CA1230692A1 Remote subscriber interaction system
12/17/1987	WO1987007803A1 System for text processing
12/17/1987	WO1987007799A1 A telephone line monitoring system
12/16/1987	EP0249205A2 Automatic data/voice sending/receiving mode switching device
12/15/1987	US4713837 Communication network
12/08/1987	US4712097 Automatic measuring/alarm apparatus for measuring radioactive concentration or the like
12/08/1987	CA1230162A1 Data transmission system
12/01/1987	US4710919 Multiplex system for automatic meter reading
12/01/1987	US4710917 Video conferencing network
11/1987
11/25/1987	EP0246428A2 Method and system for addressing and controlling a network of modems
11/24/1987	CA1229688A1 Method and apparatus for communicating digital signals over telephone lines
11/19/1987	WO1987007110A1 Hospital signaling and communications system
11/19/1987	WO1987007106A1 Portable handheld terminal including optical bar code reader and electromagnetic transceiver means for interactive wireless communication with a base communications station
11/19/1987	WO1987007105A1 Remote sensor with inductively coupled power supply
11/19/1987	EP0245868A2 Signal communication capable of avoiding an audible reproduction of a sequency of information signals
11/19/1987	EP0245709A1 Calling device for a building and persons including a name list
11/19/1987	EP0245469A1 Bi-directional data telemetry system
11/17/1987	US4707849 High speed automatic test apparatus especially for electronic directory terminals
11/17/1987	US4707825 Methods of installing and assigning control processors in a distributed-control communications system
11/12/1987	DE3615183A1 Method for manual or automatic connection of an ancillary device to digital telephone stations
11/11/1987	EP0245025A2 Response system of a terminal to an incoming call
11/11/1987	EP0244756A2 Communication terminal apparatus
11/10/1987	US4706271 Communication lines with terminate and leave capability-DC alarm bridge
11/10/1987	US4706241 Low speed gate circuit
11/05/1987	WO1987006788A1 Multi-speed, full duplex modem
11/04/1987	EP0243563A1 Non coded information and companion data switching mechanism
10/1987
10/28/1987	EP0243291A2 Improvements in a new simultaneous voice and data communication system, with possibility of connection to public or private networks
10/27/1987	US4703480 Digital audio transmission
10/21/1987	EP0241622A1 An efficient transmission mechanism integrating data and non coded information
10/20/1987	US4701946 Device for controlling the application of power to a computer
10/20/1987	US4701945 Carrier current transceiver
10/20/1987	US4701943 Paging system using LPC speech encoding with an adaptive bit rate
10/20/1987	CA1228414A1 Variable band distributed switching node with dynamic hybrid frame management
10/14/1987	EP0241228A2 Multiple access communication system having loop-check circuitry for switching intraoffice connections
10/13/1987	US4700378 Data base accessing system
10/13/1987	US4700358 Synchronous/asynchronous modem
10/13/1987	CA1228185A1 Subscriber's line closing circuit
10/13/1987	CA1228184A1 Centerpoint automatic meter reading system
10/13/1987	CA1228146A1 Multimode data communication system
10/07/1987	EP0239908A2 Wideband switching system
10/07/1987	EP0239758A2 Circuit arrangement for connecting a data terminal to a communication line connected to a telephone installation
09/1987
09/29/1987	CA1227586A1 Call progress for a computer telephone interface
09/29/1987	CA1227561A1 Television and market research data collection system and method
09/24/1987	WO1987005765A1 Remotely controlled telephone hold program system
09/24/1987	WO1987005764A1 Telephone dial-up vendor service
09/24/1987	DE3607682A1 Series telephone system
09/23/1987	EP0238256A2 Automated message chronicling system
09/23/1987	EP0238255A2 The personal computer - as an interface between a telephone station set and a business communication system
09/23/1987	EP0238039A2 Network event identifiers
09/22/1987	US4696031 Signal detection and discrimination using waveform peak factor
09/22/1987	US4695880 Electronic information dissemination system
09/16/1987	EP0236878A2 Small private telephone exchange, especially a key telephone exchange
09/09/1987	EP0236170A1 Device and method for the remote monitoring of sights, incorporating abnormal events detection means, acoustic listening means and video watching means
09/02/1987	EP0233902A1 Telephone and demodulator
09/01/1987	US4691344 Low-powered remote sensor and telephone line transmitter
09/01/1987	US4691342 Multi-speed, full duplex modem
09/01/1987	US4691341 Method of transferring digital information and street lighting control system
09/01/1987	US4691340 Image information accessing user terminal
08/1987
08/27/1987	WO1987005173A1 Voice, data or both over one telephone line in a t-1 carrier system
08/26/1987	EP0233457A1 Improvements to an operation control system of one or more apparatuses
08/25/1987	US4689811 Call diverter function in an early care telephone system
08/19/1987	EP0232636A1 Device for assisting in the maintenance of an electromechanical installation which includes automatic means for checking and control
08/19/1987	CN86107797A Improved synchro lasynchronous modem
08/18/1987	CA1225760A1 Method for transmission of alarm signals
08/18/1987	CA1225759A1 Remotely controlled telephone hold program system
08/18/1987	CA1225727A1 Multifrequency tone distribution using a conferencing arrangement
08/13/1987	WO1987004884A1 Pay-per-view catv system
08/11/1987	US4686702 Signal transmission control apparatus
08/11/1987	US4686699 Call progress monitor for a computer telephone interface
08/11/1987	US4686698 Workstation for interfacing with a video conferencing network
08/11/1987	US4686697 Telephone care system with telephone line-checking
08/05/1987	CN87100430A Reactive virtual telephone transmission system
08/04/1987	US4685129 Power transmission arrangement for telecommunications systems
08/04/1987	US4685124 Microprocessor based control and switching device
08/04/1987	US4685123 Communication system having voice and data capability
08/04/1987	US4685121 Connecting and communication system and means for a telephone station with peripheral apparatus
07/1987
07/30/1987	WO1987004580A1 Low-powered remote sensor and telephone line transmitter
07/29/1987	EP0230241A1 Multiple display system
07/22/1987	EP0229170A1 Statistical analysis system and method for use with public communication facility.
07/21/1987	US4682352 Universal modem receiver transmitter
07/21/1987	US4682348 Life safety audio system having a voice synthesizer and a constant volume telephone network
07/21/1987	US4682014 Simple data input apparatus

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