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:
Nov. 06, 2018
Filed:
Sep. 26, 2016
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Vamsikrishna Parupalli, Austin, TX (US);
Lingli Zhang, Austin, TX (US);
Jeremy Babcock, Austin, TX (US);
Marc L. Tarabbia, Austin, TX (US);
Cirrus Logic, Inc., Austin, TX (US);
Abstract
Errors in measurements of a resistor to monitor current through a speaker may be corrected to improve the accuracy, performance, or quality of other signals affected by the measurement. Error may occur in the current measurement resulting from variations in measurements involving the resistor, such as errors based on the sense resistor's response to temperature or voltage differential. Correcting the measurement errors can prevent the overcurrent condition from occurring, and otherwise improve audio output from the speaker. Thus, a method for correcting measurements in a speaker monitoring circuit may include monitoring a current through a speaker by receiving a measurement that is correlated to the current output through the speaker; and correcting the measurement for one or more inaccuracies in the measurement.