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.:
Date of Patent:
Oct. 04, 2005
Filed:
Jul. 17, 2001
Shogo Iizuka, Yokohama, JP;
Shigeru Hosoi, Yokohama, JP;
Kazuki Hoshino, Tokyo, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An extraction section extracts a speech signal having ambient noise superimposed thereon as a data segment having a predetermined duration. An autocorrelation function normalizing section determines normalized autocorrelation function vectors. A normalized autocorrelation function count section counts a given number of normalized autocorrelation function vectors. A noise vector region/speech vector region/undefined vector computation section classifies the normalized autocorrelation function vectors into any of a noise vector region, a speech vector region, or undefined vectors. When the latest normalized autocorrelation function vector acquired by a normalized autocorrelation function vector determination section pertains to the noise vector region, the speech signal is determined to be a noise segment. In contrast, when the latest vector does not pertain to the noise vector region, the input signal is determined to be a speech segment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile