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 7050980 B1

PDF
Full Text
Expired
Date of Patent:
May. 23, 2006

Filed:

Sep. 28, 2001
Applicants:

YE Wang, Tampere, FI;

Miikka Vilermo, Tampere, FI;

Inventors:

Ye Wang, Tampere, FI;

Miikka Vilermo, Tampere, FI;

Assignee:

Nokia Corp., Espoo, FI;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10L 21/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A system and method for detecting beats in a compressed audio domain is disclosed where a beat detector functions as part of an error concealment system in an audio decoding section used in audio information transfer and audio download-streaming system terminal devices such as mobile phones. The beat detector includes a MDCT coefficient extractor, a band feature value analyzer, a confidence score calculator; and a converging and storage unit. The method provides beat detection by means of beat information obtained using both MDCT coefficients as well as window-switching information. A baseline beat position is determined using MDCT coefficients obtained from the audio bitstream which also provides a window-switching pattern. A window-switching beat position is compared with the baseline beat position and, if a predetermined condition is satisfied, the window-switching beat position is validated as a detected beat.


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Wang, Ye. (2006). System and method for compressed domain beat detection in audio bitstreams (U.S. Patent No. 7050980). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7050980

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