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)
08/1983
08/23/1983CA1152601A1 Apparatus for signalling system
08/23/1983CA1152600A1 Monitoring and signalling system
08/17/1983EP0086128A1 Asynchronous transmission system, particularly for a videotext interactive system
08/16/1983CA1152206A1 Buffer memory dispersion type video/audio transmission system
08/10/1983EP0085211A1 Improvements in telephone intruder alert systems
08/09/1983US4398297 Data set diagnostic system
08/02/1983US4396915 Automatic meter reading and control system
07/1983
07/27/1983EP0084125A2 Apparatus for efficient statistical multiplexing of voice and data signals
07/26/1983US4395590 Line powered modem
07/21/1983WO1983002533A1 Simultaneous transmission of two information signals within a band-limited communications channel
07/20/1983EP0083893A1 System for the transmission of messages to a subscriber's set through a subscriber's line in a telephone installation
07/19/1983US4394540 Remote meter reader and method for reading meters over non-dedicated telephone lines
07/19/1983US4394539 Timepiece with automatic time setting system thru dial telephone line and automatic speed adjusting system
07/19/1983CA1150429A1 Time division digital switching installation for speech and data packet transmission lines
07/12/1983US4393277 Remote tuner control system
07/12/1983CA1149916A1 Method of providing person locator service
07/07/1983WO1983002376A1 Telephonic alphanumeric data transmission system
07/07/1983WO1983002375A1 Remote control device through the telephone network
07/06/1983EP0016155B1 Remote supervisory system
07/05/1983US4392218 Apparatus for identifying a dictate station by providing an automatically generated sequence of signals and a manually entered sequence of signals
07/05/1983US4392023 Off-hook telephone sensing system
07/05/1983CA1149529A1 Digital data transmission system
06/1983
06/29/1983EP0082749A1 Teleterminal connected to two telephone lines with a partially remote current supply
06/29/1983EP0082512A1 Method for the transmission of alphanumeric characters
06/29/1983EP0082333A1 Interleaved digital data and voice communications system and method
06/29/1983EP0082200A1 Processor facilities for integrated packet and voice switching.
06/28/1983US4390986 Digital subscriber communication system
06/28/1983US4390750 Remote supervisory system
06/22/1983EP0082077A1 Method of teledistributing recorded information, particularly pieces of music, and system for carrying it out
06/21/1983US4389547 Telephone set
06/21/1983US4389543 Telephone-activated audio control circuit
06/14/1983US4388730 Noise detector and data signal receiver for a frequency modulation system
06/14/1983US4388718 Digital telecommunication system
06/14/1983US4388690 Automatic meter reading transponder
06/09/1983WO1983002046A1 Remote subscriber interaction system
06/08/1983EP0080688A1 Method and device for the detection of data or of signalling on a telephonic path
06/07/1983US4387440 Modem control device code multiplexing
06/07/1983US4387368 Telemetry system for centrifugal water chilling systems
06/07/1983US4387271 Combined telephone and data-transfer system
06/07/1983CA1147875A1 Packet transmission system with voice signal priority
05/1983
05/31/1983CA1147422A2 Meter terminal unit for use in automatic remote meter reading and control system
05/25/1983EP0079380A1 Pictorial information processing technique
05/25/1983EP0079347A1 Sonorous card for numerical codification through telephone line
05/24/1983US4385377 Pulse position time division surface wave device transmitter
05/24/1983US4385359 Multiple-channel voice input/output system
05/24/1983US4385295 Pager with visible display indicating unread messages
05/18/1983EP0078862A1 Emergency calling device
05/10/1983US4383316 Apparatus for and method of collating partitioned time disordered synchronous data streams
05/10/1983US4383315 Idle time slot seizure and transmission facilities for loop communication system
05/10/1983US4383138 Method and apparatus for processing coded information received through a telephone line during the inter-ringing periods
05/04/1983EP0078036A2 Key set for a communication equipment terminal
05/04/1983EP0077913A1 Signalling communication apparatus
04/1983
04/28/1983WO1983001548A1 Encoder for transmitted message activation code
04/28/1983WO1983001547A1 Encoder for transmitted message deactivation code
04/28/1983WO1983001545A1 Encoder for transmitted message deactivation code
04/27/1983EP0077668A1 A combined communication, security and alarm radio system
04/27/1983EP0077563A1 Process and apparatus for multiple random access to a transmission line in a local network for speech and data
04/26/1983US4381427 Subscriber loop system for voice and data
04/26/1983CA1145476A1 Diagnostic display terminal system
04/26/1983CA1145441A1 Method for transmitting airport weather information
04/19/1983CA1145077A1 Circuit for interfacing non-dial telephone and automatic switch equipment
04/14/1983WO1983001357A1 Pager with visible display indicating status of memory
04/14/1983WO1983001356A1 Pager with visible display indicating unread messages
04/13/1983EP0076362A2 Service-integrated transmission and switching network for picture, sound and data
04/06/1983EP0075998A1 Digital telephone exchange comprising means for processing packet-switched data
03/1983
03/31/1983WO1983001169A1 Method and arrangement for signaling the transmission mode of a communication system
03/30/1983EP0075123A1 Identification-code reporting system for fully automatic location of a subscriber in a mobile communication network, in particular in a wired communication network
03/30/1983EP0075120A1 Automatic dialling device
03/30/1983EP0075076A1 Method of transmitting emergency calls from people in need of assistance
03/29/1983US4378470 Interface circuits for connection to non-dedicated telephone lines
03/23/1983EP0074663A2 Aid for a receptionist
03/22/1983US4377860 Bandwidth reduction method and structure for combining voice and data in a PCM channel
03/16/1983EP0074054A1 Data under voice communications system
03/09/1983EP0073543A2 Information transmission system between a telephone set and a person at a distance from his set
03/08/1983CA1142444A2 Dictate station identifier
03/08/1983CA1142443A2 Dictate station identifier
03/08/1983CA1142442A1 Dictate station identifier
03/01/1983US4375582 Telephone answering system and method
02/1983
02/22/1983US4375060 Electronic apparatus having special key
02/16/1983EP0072117A1 Method and apparatus for transmitting an image
02/16/1983EP0071936A2 Telephone interfaced recording and playback apparatus
02/09/1983EP0071057A2 Communication system with a switching arrangement for broadband signals
02/09/1983EP0070993A1 Method of transmitting emergency calls from people in need of assistance
02/09/1983EP0070949A1 Transmission method for voice and digital data and arrangement for carrying out said method
02/09/1983EP0070872A1 Cordless telephone system
02/09/1983EP0016125B1 Method and system for subscription television billing and access
02/08/1983US4372558 Remote game apparatus
02/03/1983WO1983000412A1 Idle time slot seizure and transmission facilities for loop communication system
02/01/1983US4371751 Automatic telephonic user emergency message transmitting apparatus
02/01/1983CA1140691A1 Interface circuits for connection to non-dedicated telephone lines
02/01/1983CA1140690A1 Remote supervisory system for monitoring telephone subscriber premises
02/01/1983CA1140668A1 Method and system for subscription television billing and access
01/1983
01/25/1983US4370675 Doorbell actuated television security system
01/20/1983WO1983000270A1 Processor facilities for integrated packet and voice switching
01/18/1983US4369438 Sump pump detection and alarm system
01/05/1983EP0068865A1 Processor facilities for integrated packet and voice switching
01/04/1983US4367548 Subscriber station for providing multiple services to a subscriber
01/04/1983US4367374 Modem telephone interface circuit
12/1982
12/28/1982US4366572 Data transmission system
12/28/1982US4366347 Apparatus for selecting terminal equipment in telephone lines
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