Noise reduction system for an audio system

Details Noise reduction system for an audio system Noise reduction system for an audio system

2005-02-22

2005-02-22

Harvey, Minsun Oh (Department: 2644)

Electrical audio signal processing systems and devices

Noise or distortion suppression

Spectral adjustment

C381S094100, C381S094200, C084S315000, C084S321000

Reexamination Certificate

active

06859540

ABSTRACT:
Dividing devices are provided for dividing an input information signal into a plurality of frequency bands, and a level detector is provided for detecting a level of a noise component of the information signal divided by the dividing device. A plurality of thresholds corresponding to the divided information signals are stored in a memory. One or more thresholds are selected from the threshold stored in the memory based on a detected result by the level detector. Attenuators are provided for comparing the information signals with a selected threshold and for attenuating an information signal the level of which is lower than the selected threshold.

REFERENCES:
patent: 5416847 (1995-05-01), Boze
patent: 5485524 (1996-01-01), Kuusama et al.
patent: 5615270 (1997-03-01), Miller et al.
patent: 5617472 (1997-04-01), Yoshida et al.
patent: 5789689 (1998-08-01), Doidic et al.
patent: 5838800 (1998-11-01), Lowe et al.
patent: 6035048 (2000-03-01), Diethorn
patent: 6097820 (2000-08-01), Turner
patent: 6125288 (2000-09-01), Imai
patent: 6167139 (2000-12-01), Kim
patent: 6445800 (2002-09-01), Nishiguchi et al.

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