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.

Date of Patent:
Sep. 15, 2015

Filed:

Aug. 24, 2012
Applicants:

Takahiro Unno, Richardson, TX (US);

Nitish Krishna Murthy, Allen, TX (US);

Inventors:

Takahiro Unno, Richardson, TX (US);

Nitish Krishna Murthy, Allen, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/02 (2013.01); H04R 25/00 (2006.01); H04R 3/00 (2006.01);
U.S. Cl.
CPC ...
H04R 25/405 (2013.01); H04R 3/005 (2013.01); H04R 2430/03 (2013.01); H04R 2499/11 (2013.01);
Abstract

In response to a signal failing to exceed an estimated level of noise by more than a predetermined amount for more than a predetermined continuous duration, the estimated level of noise is adjusted according to a first time constant in response to the signal rising and a second time constant in response to the signal falling, so that the estimated level of noise falls more quickly than it rises. In response to the signal exceeding the estimated level of noise by more than the predetermined amount for more than the predetermined continuous duration, a speed of adjusting the estimated level of noise is accelerated.


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