| 摘要 |
<p>Remote control of power devices is described e.g. electric bulbs of lighting installations, by use of any remote control transmitter, primarily designed for an audio-video equipment. An infrared signal transmission method is used and in order to control a power receiver the signal derived from an infrared transmitter is used with discretionary ways of modulation. The signal is reproduced in the shape of a string of impulses (logical "zero", logical "one") and its duration is proportional to the duration of a signal excitation source of a guiding transmitter. The circuitry, is characterized by an impulse-forming circuit (Ufl) connected to an infrared sensor (CP) and to input and delay counter (UZWOC) and furthermore, to a control signal forming system (UTSS). Signal forming circuitry (UTSS) through the intermediate circuit (UP) is connected to phase shift circuitry (UPF) and to a further sensor (S). <IMAGE></p> |
