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:
Aug. 09, 2016
Filed:
Dec. 16, 2013
Applicant:
Stmicroelectronics, Inc., Coppell, TX (US);
Inventor:
Earl Corban Vickers, San Jose, CA (US);
Assignee:
STMicroelectronics, Inc., Coppell, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/00 (2006.01); H04R 3/04 (2006.01); H04R 5/04 (2006.01);
U.S. Cl.
CPC ...
H03G 3/00 (2013.01); H04R 3/04 (2013.01); H04R 5/04 (2013.01); H04R 2430/03 (2013.01);
Abstract
Psychoacoustic bass audio signal enhancement can be accomplished using a monotonic, asymmetric polynomial distortion. A non-linear process applies a monotonic, asymmetric polynomial distortion function that has continuous first and second derivatives to generate even and odd harmonics of missing fundamental frequencies. This polynomial distortion produces the desired psychoacoustic effect with a fairly rapid rolloff so as to avoid unpleasant aliasing. Moreover, the lack of first-order discontinuities prevents clicks or glitches.