| 摘要 |
An acoustic signal transmitting system comprises, at a transmission side, a plurality of acoustic input means each for producing an individual acoustic signal; a discriminating signal memory for storing a discriminating signal corresponding to each of the acoustic input means; a modulator for modulating the discriminating signal into a signal with a predetermined acoustic frequency; and a transmission controller for transmitting the acoustic signal when the acoustic input means output the acoustic signal and for transmitting the discriminating signal modulated by the modulator when the acoustic input means do not output the acoustic signal. The system also comprises, at a reception side, a filter for separating the discriminating signal and the acoustic signal from a transmission signal transmitted from the signal transmitting unit through the single channel; a management memory means for storing a table for managing a unique discriminating signal corresponding to each of the acoustic input means and data related to the unique discriminating signal; a reception controller for comparing the discriminating signal separated by the filter with the discriminating signal stored in the management memory to determined whether or not a corresponding acoustic signal exists in the management memory, and for processing the acoustic signal; and means for utilizing the discriminating signal and the corresponding acoustic signal.
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