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:
Jan. 12, 2010
Filed:
Apr. 30, 2003
Applicant:
James A. Michener, Grass Valley, CA (US);
Inventor:
James A. Michener, Grass Valley, CA (US);
Assignee:
The DIRECTV Group, Inc., El Segundo, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Audio level control is provided for compressed audio. Scale factors for the compressed audio are extracted from an MPEG audio data stream, the extracted scale factors are altered without decompressing the compressed audio, and the MPEG audio data stream is updated with the altered scale factors. All of the scale factors in the MPEG audio data stream are altered based on a parameter identifying how the gain levels in the MPEG data stream are to be altered.