Patent ID: 6868161

Claim:
A wireless transmitting/receiving device comprising: a first device having transmitting means for modulating and transmitting an analog input signal; and a second device having receiving means for receiving said signal transmitted by said first device, for demodulating said signal to obtain an analog signal, and for outputting said analog signal, wherein said first device includes: signal processing means for applying signal processing to a digital signal obtained by digitizing said analog input signal and producing an output digital audio signal, digital to analog converting means for converting said output digital audio signal from said signal processing means into an analog signal, emphasis means including one means for increasing a gain of a high frequency portion of said analog signal converted by said digital to analog converting means and means for increasing a gain of a high frequency portion of said digital signal in said signal processing means, and said signal processing means includes: delay means for delaying said digital signal; and signal compressing/expanding means for compressing or expanding a level of a delay output signal of said delay means according to a level of an input signal of said signal processing means.