| 摘要 |
PROBLEM TO BE SOLVED: To obtain a wireless system increasing reproducibility of a signal by changing to optimum signal processing even to an input signal having different frequency characteristics, and improving sound quality as compared with prior art. SOLUTION: In the wireless system, a transmitter converts an electric signal to radio waves for transmission, and includes a first time-constant circuit for deciding the attack time of a compressor compressing a dynamic range of the electric signal, while a receiver receives and demodulates the radio waves transmitted from the transmitter to output the electric signal, and includes a second time-constant circuit for deciding the recovery time of an expander for expanding the demodulated signal to the original electric signal. COPYRIGHT: (C)2011,JPO&INPIT
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