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:
Dec. 02, 2014
Filed:
Oct. 04, 2010
Applicants:
Wenbo Zong, Singapore, SG;
Yuan Wu, Singapore, SG;
Sapna George, Singapore, SG;
Inventors:
Assignee:
STMicroelectronics Asia Pacific Pte Ltd, Singapore, SG;
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/04 (2013.01);
U.S. Cl.
CPC ...
G10L 21/04 (2013.01);
Abstract
A time-domain system and method of modifying the time scale of digital audio signals includes a pre-processor. The pre-processor forms a synthesized signal for processing with minimum computation and that has optional features to give preference to certain audio channels and/or frequency bands, a mechanism of adaptively characterizing the temporal features of the synthesized signal by its normalized power and zero-crossing count, and a mechanism of identifying a segment of the synthesized signal where the time scale can be modified without introducing artifacts or losing content.