Matches 51 - 62 out of 62 < 1 2
Match Document Document Title
4591851 General purpose data control system  
A general purpose data control and information system particularly well adapted for multiple unit radio communications providing reliable enhancement to normal voice systems. The system provides...
4590473 Data signalling system  
A data signalling system for transmitting signals between at least one primary station and a plurality of secondary stations. The system is well adapted for use in multiple unit radio...
4491399 Method and apparatus for recording a digital signal on motion picture film  
A method and apparatus for recording a digital signal such as a modified SMPTE time code on motion picture film as it is being intermittently advanced by a motion picture camera. The recorded time...
EP0115507A1 GENERAL PURPOSE DATA CON  
EP0115499A1 SELECTIVE CALL PAGING AN  
EP0111973A2 Monitoring an existing radio link between a fixed and a mobile radio station.  
1. A radio communication system with a base radio station and mobile radio stations, which in existing radio links continuously individually realise and maintain synchronism on the basis of...
4411017 Secure mobile telephone system  
A communications system including a central station and a plurality of remote stations, for example, a mobile telephone system, is disclosed in which communications channel establishing signalling...
4354252 Programmable digital data terminal for mobile radio transceivers  
In a data transmission system, for communicating messages between a base station and a plurality of mobile stations, each mobile station includes a radio frequency transceiver and a programmable...
4231031 Remote control system capable of transmitting the information with the aid of an infra red beam using PPM or an ultrasonic beam using PDM  
A remote control system for TV receiver control. The system uses infra-red transmission to trasmit an infra-red data pulse on each edge of a pulse duration signal comprising a coded pattern of...
4208650 Data transmission system  
A data transmission system is provided for transmitting data over a communication link extending between a transmitter and a receiver. The transmitter is connected to a data containing unit and...
4167730 Compression of data on status of remote equipment  
In communication system comprising plurality of earth stations tied together by relay (e.g. satellite-borne) in which status of individual subscriber line interface units must be continually...
4110558 Data transmission system  
A data-transmission system using a continuous ARQ system, wherein a block (word) synchronization code is transmitted through a transmission line from a transmitter to a receiver repeatedly at a...
Matches 51 - 62 out of 62 < 1 2