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. 31, 2019
Filed:
Sep. 05, 2018
Amazon Technologies, Inc., Seattle, WA (US);
Ilya Vladimirovich Brailovskiy, Los Gatos, CA (US);
Venkatesh Viswanathan, Coppell, TX (US);
AMAZON TECHNOLOGIES, INC., Seattle, WA (US);
Abstract
Systems and techniques are generally described for audio signal processing for motion detection. In some examples, a first energy level of a first audio signal detected by a first microphone is determined over a first period of time. In some further examples, a first change in the first energy level from a first energy level value to a second energy level value is determined during the first period of time. In some other examples, a determination is made that the first change in the first energy level exceeds a threshold change value associated with the first period of time. In at least some other examples, a bias of an audio amplifier of the first device is adjusted.