| 摘要 |
PROBLEM TO BE SOLVED: To provide an infrared remote control transmitter/receiver which realizes a remote control operation and individual reception with a simple constitution. SOLUTION: In a remote controller 2 for transmitting an infrared optical signal for operating an acoustic unit 1, a sound-use optical signal transmitter 15 for converting a sound signal into an infrared optical signal and transmitting it is fitted to the earphone jack 14 of the acoustic unit 1. The remote controller 2 is provided with a light reception part 24 for receiving the sound signal of the acoustic unit 1 by receiving the infrared light signal and an earphone jack 25 for introducing the sound signal to an earphone 29. |
