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:
Sep. 29, 2020
Filed:
Jul. 03, 2018
Applicant:
Silicon Laboratories Inc., Austin, TX (US);
Inventors:
Bradley Arthur Wallace, Austin, TX (US);
Carl Harry Alelyunas, Austin, TX (US);
Assignee:
SILICON LABORATORIES INC., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10L 19/02 (2013.01); G06F 17/14 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
G10L 19/0216 (2013.01); G06F 17/148 (2013.01); G06K 9/0053 (2013.01);
Abstract
In one example, an apparatus includes: a wavelet transform engine to receive a first signal stream and perform a wavelet transform on a first time domain sample of the first signal stream, the first wavelet transform engine to output at least one first coefficient for a first frequency range; an energy calculation circuit to compute a first energy signature for the at least one first coefficient; and a correlation circuit to generate a correlation value using the first energy signature, a second energy signature and a plurality of previous energy signatures.