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:
Dec. 24, 2024
Filed:
Sep. 28, 2022
Skyworks Solutions, Inc., Irvine, CA (US);
Spencer David Leuenberger, Portland, OR (US);
Deepika Kumari, Portland, OR (US);
David Lamb, Portland, OR (US);
Mark R. Peting, Yamhill, OR (US);
Evan Michael Albright, Portland, OR (US);
Wai Laing Lee, Portland, OR (US);
Amit Kumar, Portland, OR (US);
Skyworks Solutions, Inc., Irvine, CA (US);
Abstract
In some embodiments, a calibration circuit for an audio amplification system can include a tone generator configured to provide a tone having a frequency to an input path of an audio amplifier, such that an input signal provided to the audio amplifier includes the tone, a a first sampling circuit configured to sample an output signal at an output node of the audio amplifier, and a second sampling circuit configured to sample the input signal at an input node of the audio amplifier. The calibration circuit can further include a gain adjustment circuit configured to generate a correction signal based on the sampled output signal and the sampled input signal to correct for a gain variation of the audio amplifier.