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:
Feb. 11, 2003
Filed:
Jul. 29, 1999
Sudheer Sirivara, Hillsboro, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A signal processing unit is disclosed for selectively routing an unfiltered input signal and a noise reduced version of the unfiltered input signal to an output port in response to a noise power estimate. Routing the unfiltered input signal to the output port when the noise power estimate is less than a noise floor threshold avoids degrading the information content of an input signal having a power level close to the noise floor. A first attenuation factor and a second attenuation factor can be applied to the unfiltered input signal. A method is disclosed for parsing a signal into a plurality of frames, selecting a maximum value for each frame, and averaging the maximum values to form a noise floor threshold.