| 摘要 |
PURPOSE:To allow the user to listen to plural sets of voice information without mutual interference. CONSTITUTION:An operation device 10 is provided with an identification information storage means 11 storing its own identification information, a transmission means 15 sending operation information including the stored identification information in an infrared ray, a reception means 14 receiving voice information sent from a voice information transmitter and a demodulation means 60 demodulating the received voice information, and a voice information transmitter is provided with an infrared ray reception means receiving the operation information sent from the operation device 10, a voice information storage means storing plural voice information sets, a control means selecting the voice information among the plural sets of the voice information stored in the voice information storage means and a transmission means sending the selected voice information. |
