| 摘要 |
PROBLEM TO BE SOLVED: To provide a noise reduction device of a digital radio communication device which can obtain a reproduction signal of high quality when an error code exists in a reception signal, a noise reduction method, and a program. SOLUTION: Digital data received by an antenna portion 10 and taken by a digital modulator/demodulator 12 are error-corrected by a code correcting portion 14, and then error relating information is detected by an error relating information detecting portion 18. Based on the error relating information, a filter control portion 20 controls a passing characteristic of a filter portion 22, and the filter portion 22 adequately corrects a waveform of a voice signal outputted from a voice modulator/demodulator 16. The corrected voice signal is reproduced as a sound by a telephone voice portion 24 and a speaker portion 26. COPYRIGHT: (C)2006,JPO&NCIPI
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