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:
Jul. 16, 2013
Filed:
Feb. 10, 2011
Brad D. Avenson, Pflugerville, TX (US);
Caesar T. Garcia, Austin, TX (US);
Neal Allen Hall, Austin, TX (US);
Abidin Guclu Onaran, Austin, TX (US);
Brad D. Avenson, Pflugerville, TX (US);
Caesar T. Garcia, Austin, TX (US);
Neal Allen Hall, Austin, TX (US);
Abidin Guclu Onaran, Austin, TX (US);
Silicon Audio, Inc., Austin, TX (US);
Abstract
Method for performing signal processing for an optical microphone. First and second signals corresponding to at least two beams may be generated or received. The first and second signals may be complementary, and may be based on signals provided by one or more photo detectors that receive the at least two beams after the beams return from a sensing structure. The first signal and the second signal may be subtracted to produce a third signal. A position of the sensing structure may be adjusted to cause the third signal to reach a first value, where the adjusting may be performed based on the third signal, and an audio output signal may be provided based on the third signal.