Radio-analogue method of audio presentation and control for audi
Radiotelephone credit card call approval synchronization
Radiotelephone credit card data communications
Radiotelephone system adapted to read a credit card
Rapid startup protocol for communication between a plurality of
Re-transmission method and apparatus in communication system usi
Real-time and non-real-time data multplexing over telephone line
Reconfigurable modem for a computer or the like
Reconfigurable on-demand telephone and data line system
Recording/playback apparatus with telephone and its control...
Reduced time remote access method
Reduced time remote access method
Reduced time remote access method and system
Redundant database storage of selected record information...
Relaying destination and designation system
Remote automatic meter reading apparatus
Remote control adapter of electric equipment using telephone lin
Remote control apparatus for electronic equipment
Remote control device using a telephone line
Remote control device using telephone circuit of electric appara