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:
May. 24, 2005
Filed:
Nov. 07, 2000
Raghunath Rao, Austin, TX (US);
Narsimham Gangishetti, Austin, TX (US);
Miroslav Dokic, Austin, TX (US);
Raghunath Rao, Austin, TX (US);
Narsimham Gangishetti, Austin, TX (US);
Miroslav Dokic, Austin, TX (US);
Cirrus Logic, Inc., Austin, TX (US);
Abstract
Digital tone controlsinclude a first pathincluding a digital filterand a scalerfor controlling a level of a low frequency component of a received digital audio signal. A secondincludes a digital filterand a scalerfor controlling a level of a high frequency component of the received digital audio signal. A third pathincludes a scalerfor controlling a level of an unfiltered component of the received audio signal. A summeradds a contribution from each of the paths to generate a composite signal having a selected gain-frequency response.