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. 27, 2016
Filed:
Nov. 07, 2013
Nvidia Corporation, Santa Clara, CA (US);
Anil W. Ubale, Cupertino, CA (US);
NVIDIA CORPORATION, Santa Clara, CA (US);
Abstract
Voice trigger. In accordance with a first method embodiment, a long term average audio energy is determined based on a one-bit pulse-density modulation bit stream. A short term average audio energy is determined based on the one-bit pulse-density modulation bit stream. The long term average audio energy is compared to the short term average audio energy. Responsive to the comparing, a voice trigger signal is generated if the short term average audio energy is greater than the long term average audio energy. Determining the long term average audio energy may be performed independent of any decimation of the bit stream.