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. 08, 2015
Filed:
Sep. 12, 2011
Applicants:
Ismael Hamad Nawfal, Los Angeles, CA (US);
Ramasamy Govindaraju Balamurali, Los Angeles, CA (US);
Inventors:
Ismael Hamad Nawfal, Los Angeles, CA (US);
Ramasamy Govindaraju Balamurali, Los Angeles, CA (US);
Assignee:
AUDYSSEY LABORATORIES, INC., Los Angeles, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/00 (2006.01); H04R 3/04 (2006.01);
U.S. Cl.
CPC ...
H04R 3/04 (2013.01);
Abstract
Volume extension includes limiting the magnitude of Fast Fourier Transform (FFT) frequency bins which allows increases to the perceived level of audio content without causing distortion. A soft limit and smoothing is applied to each FFT bin is to prevent or reduce distortion while maximizing output volume. Frequency resolution is significantly improved compared to volume extension methods utilizing filterbanks and hard limiting, and distortion is reduced because no hard limiting occurs.