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.

Date of Patent:
Nov. 27, 2018

Filed:

Aug. 18, 2017
Applicant:

Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;

Inventors:

Ramin Zanbaghi, Austin, TX (US);

Daniel J. Allen, Austin, TX (US);

John L. Melanson, Austin, TX (US);

Aniruddha Satoskar, Round Rock, TX (US);

Akshay Godbole, Austin, TX (US);

Assignee:

Cirrus Logic, Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/12 (2006.01); H03M 1/18 (2006.01); H04R 3/04 (2006.01); H03H 19/00 (2006.01); H03M 1/00 (2006.01); H04L 25/06 (2006.01); H03G 3/30 (2006.01); H03M 1/80 (2006.01);
U.S. Cl.
CPC ...
H03M 1/188 (2013.01); H03H 19/004 (2013.01); H04R 3/04 (2013.01); H03G 3/3052 (2013.01); H03M 1/00 (2013.01); H03M 1/12 (2013.01); H03M 1/804 (2013.01); H04L 25/061 (2013.01);
Abstract

A system may include an input for receiving an input signal, an output for generating an output signal, a capacitor coupled between the input and the output, a variable resistor coupled to the output and having a plurality of modes including a first mode in which the variable resistor has a first resistance and a second mode in which the variable resistor has a second resistance, and control circuitry configured to determine a difference between the input signal and the output signal and switch between modes of the plurality of modes when the difference is less than a predetermined threshold.


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