| 摘要 |
PURPOSE:To provide a wireless microphone system which meets the needs by enabling long-distance transmission in an open room, preventing interference with similar system used in the next room, etc., and controlling equipments on the reception side. CONSTITUTION:A microphone part 1 which converts a voice sound into a sound electric signal, a remote control signal generating part 4 which generates the electric signal corresponding to the infrared ray remote control code corresponding to respective functions of the equipments constituting a receiving system while corresponding to a frequency modulator 2 which modulates a carrier wave by using the sound electric signal and switches 3a-3b, a multiple circuit 5 which frequency-multiplexes the signal subjected to the modulation as started and a remote control signal and a light emitting part 6 which converts the multiplexed electric signal into an infrared ray signal are provided. Thus, a sound signal is transmitted by using an infrared ray and the remote control signal for equipments can be transmitted with the same infrared ray. |
