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:
Apr. 25, 2017
Filed:
Dec. 06, 2011
Arijit Raychowdhury, Duluth, GA (US);
Willem M. Beltman, West Linn, OR (US);
James W. Tschanz, Portland, OR (US);
Carlos Tokunaga, Hillsboro, OR (US);
Michael E. Deisher, Hillsboro, OR (US);
Thomas E. Walsh, Banks, OR (US);
Arijit Raychowdhury, Duluth, GA (US);
Willem M. Beltman, West Linn, OR (US);
James W. Tschanz, Portland, OR (US);
Carlos Tokunaga, Hillsboro, OR (US);
Michael E. Deisher, Hillsboro, OR (US);
Thomas E. Walsh, Banks, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Methods of enabling voice processing with minimal power consumption includes recording time-domain audio signal at a first clock frequency and a first voltage, and performing Fast Fourier Transform (FFT) operations on the time-domain audio signal at a second clock frequency to generate frequency-domain audio signal. The frequency domain audio signal may be enhanced to obtain better signal to noise ratio, through one or multiple filtering and enhancing techniques. The enhanced audio signal may be used to generate the total signal energy and estimate the background noise energy. Decision logic may determine from the signal energy and the background noise, the presence or absence of the human voice. The first clock frequency may be different from the second clock frequency.