| 摘要 |
PURPOSE:To constitute a remote control system small in size and compact in volume by constituting the respective photodetector parts of a remote controller position detecting signal photodetecting means and an ordinary signaling means in common. CONSTITUTION:While an ordinary signal is transmitted from a remote controller, a remote controller position signal-ordinary signal switch signal D is made to be L, and photodetector switching signals A-C are made to be H. A summed signal from photodetectors 21-23 is outputted as the ordinary signal through an amplification circuit 28, a tuning.detection circuit 29 and a waveform shaping circuit 30. While a position detecting signal is transmitted from the remote controller, the remote controller position signal-ordinary signal switch signal is made to be H, and the photodetector switching signals A-C are successively switched to H. Correspondingly to this switching, the signal from the photodetectors 21-23 is outputted as the remote controller position signal through the amplification circuit 26 and the tuning.detection circuit 27. |
