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:
Aug. 22, 2017
Filed:
Nov. 14, 2016
Cirrus Logic, Inc., Austin, TX (US);
Ullas Pazhayaveetil, Cedar Park, TX (US);
Jeffrey May, Dripping Springs, TX (US);
Anu Chakravarty, Austin, TX (US);
Gautham D. Kamath, Austin, TX (US);
John C. Tucker, Austin, TX (US);
Christian Larsen, Austin, TX (US);
Cirrus Logic, Inc., Austin, TX (US);
Abstract
Audio amplification may be improved by controlling an audio amplifier based on the audio signal being amplified. For example, when the audio signal level increases or decreases, a boost voltage provided to an audio amplifier by a boost converter may also be increased or decreased. In another example, when the audio signal level decrease below a certain level, the audio amplifier may be switched from amplifying the audio signal with a boost converter input to amplifying the audio signal with a low voltage input. Control of the audio amplifier may be implemented in a digital boost converter controller coupled to the boost converter and/or the audio amplifier.