| 摘要 |
<p>PURPOSE:To automatically stop reproduction when a man leaves an apparatus, and to automatically re-start the reproduction when he returns by providing an AV electric apparatus to reproduce a sound or a video image with an infrared ray sensor and a means to output the same signal every time its output changes, and inputting this output to a temporary stoppage control device. CONSTITUTION:When the man enters a detection area 3, and the power supply of the AV electric apparatus 1 is switched on, an infrared ray is generated from the infrared ray sensor 2 installed at the front face side of the apparatus 1, and it is detected, and the output of a waveform shaping circuit 4 is turned from L-level to H-level, and the pulse of H-level is inputted from a differentiation circuit 5 to the temporary stoppage control circuit 9 through an OR gate 8. Consequently, since the apparatus 1 is set in the state of temporary stoppage, after the completion of the selection of music or the setting of a video tape, a temporary stoppage switch 10 is operated so as to input the pulse of H-level to the circuit 9 from the gate 8, and the state of the temporary stoppage is canceled, and ordinary reproduction is executed. When the man gets out of the area 3, the reproduction is turned into the state of the temporary stoppage, and when he returns, the reproduction is re-started.</p> |
