Data processing: generic control systems or specific application – Specific application – apparatus or process – Digital audio data processing system
Reexamination Certificate
2011-08-16
2011-08-16
Flanders, Andrew C (Department: 2614)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Digital audio data processing system
Reexamination Certificate
active
08000824
ABSTRACT:
An audio signal processing apparatus includes a high-pass filter for extracting from an audio signal a frequency component higher than f0, n band-pass filters for extracting, from the audio signal, frequency components falling within a frequency range from f0/N to f1/N, n harmonic overtone generators for frequency multiplying each of outputs of the n band-pass filters by N, a first combining unit for combining the generated harmonic overtone components, a level detector for detecting a level of a supplied harmonic overtone component, a gain controller for controlling dynamically the harmonic overtone component supplied from the first combining unit, and a second combining unit for combining the frequency component extracted by the high-pass filter and a harmonic overtone component output from the gain controller, where N is (n being a natural number), f0is a first predetermined frequency, and f1is a second predetermined frequency higher than f0.
REFERENCES:
patent: 5930373 (1999-07-01), Shashoua et al.
patent: 7394908 (2008-07-01), Katou et al.
patent: 7412220 (2008-08-01), Beyer
patent: 2001/0036278 (2001-11-01), Polisset et al.
patent: 2004/0071297 (2004-04-01), Katou et al.
patent: 2004/0234083 (2004-11-01), Katou et al.
patent: 08-213862 (1996-08-01), None
patent: WO 97/42789 (1997-11-01), None
patent: WO 00/14998 (2000-03-01), None
patent: WO 01/78447 (2001-10-01), None
Nakagami Taro
Ohkuri Kazunobu
Shimura Masaru
Flanders Andrew C
Sony Corporation
Wolf Greenfield & Sacks P.C.
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