Radio transceiver

Details Radio transceiver Radio transceiver

H - Electricity

04

B

H04B 1/40 (2006.01) H03G 3/32 (2006.01) H04B 15/00 (2006.01) H04R 9/08 (2006.01)

Patent

CA 2118767

A noise suppressing circuit in a digital portable telephone adjusts a level of signals from a microphone through an analog- to-digital converter to suppress ambient noise. An encoder produces encoded signals from output signals of the noise suppressing circuit. By suppressing ambient noise in a transmitting side, the digital portable telephone is capable of preventing an awkward feeling to a person in a receiving side.

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