JOHODENSOHOSHIKI

摘要

A remote control system utilizing an alternating signal, in which the duration of the signal is measured with respect to a time frame composed of a succession of adjacent time groups each subdivided into a succession of adjacent time channels. A first item of information provided by the signal is obtained by observing the time group containing the end of the signal while a second item of information provided by the signal is obtained by observing the time channel within such group containing the end of signal.