Noise reduction apparatus and audio output apparatus

Details Noise reduction apparatus and audio output apparatus Noise reduction apparatus and audio output apparatus

2000-07-14

2009-06-23

Chin, Vivian (Department: 2614)

Electrical audio signal processing systems and devices

Noise or distortion suppression

C381S002000

Reexamination Certificate

active

07551743

ABSTRACT:
The FM broadcast is received and the FM demodulated FM composite signal is stereo demodulated, and when the high band components of the demodulated signal are few, the correction is conducted by using the signals just before and just after the noise generation period, and when the high band components are large, the interpolation is conducted by using a central value calculated from the value of a predetermined period before the noise generation period, and a central value calculated from the value of a predetermined period after the noise generation period.

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