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:
Nov. 03, 2009
Filed:
Nov. 10, 2003
Jason M. Anderson, Snoqualmie, WA (US);
Theodore C. Tanner, Hollywood, SC (US);
Jason M. Anderson, Snoqualmie, WA (US);
Theodore C. Tanner, Hollywood, SC (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
Systems and methods for improving the signal to noise ratio for audio input in a computing system are provided. Signal to noise ratio improvements are enabled for an input audio signal by incorporating a plurality of microphones into the PC environment, for example, to improve the processing of voice or speech input or other audio capture applications. In various embodiments, a plurality of microphones are spaced apart, e.g., attached to or within a PC housing, in such a way that noise from PC components can be 'subtracted' or reduced from an input audio signal, which increases the signal to noise ratio and improves audio processing accuracy. The 'subtraction' or reduction techniques applied by the present invention are unique to the PC environment wherein different noises having particular characteristics can be identified, including, but not limited to, rattle of device components, fan noise and disk noise.