The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9184708 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 10, 2015

Filed:

Jul. 30, 2012
Applicants:

Jung-min Choi, Hwaseong-si, KR;

Jae-yong Cho, Bucheon-si, KR;

Inventors:

Jung-min Choi, Hwaseong-si, KR;

Jae-yong Cho, Bucheon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/217 (2006.01); H03M 3/00 (2006.01);
U.S. Cl.
CPC ...
H03F 3/2173 (2013.01); H03F 3/217 (2013.01); H03M 3/366 (2013.01); H03M 3/458 (2013.01);
Abstract

An audio signal processing apparatus and method are provided. The apparatus includes a stability determiner and a sigma-delta modulator. The stability determiner divides a frequency band of an input audio signal into one or more sub-frequency bands, compares a level of the input audio signal for each of the sub-frequency bands with a threshold for the sub-frequency band, and generates a stability determination signal according to a result of the comparison. The sigma-delta modulator sigma-delta modulates the input audio signal according to the stability determination signal, and outputs a modulation signal.


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Choi, Jung-min. (2015). Audio signal processing method and audio signal processing apparatus therefor (U.S. Patent No. 9184708). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9184708

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