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:
Dec. 31, 2024

Filed:

Dec. 13, 2021
Applicant:

Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;

Inventors:

John Paul Lesso, Edinburgh, GB;

Robert James Hatfield, Edinburgh, GB;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10L 15/20 (2006.01); G10L 15/08 (2006.01); G10L 15/28 (2013.01); G10L 17/24 (2013.01); G10L 21/0208 (2013.01);
U.S. Cl.
CPC ...
G10L 15/20 (2013.01); G10L 15/28 (2013.01); G10L 2015/088 (2013.01); G10L 17/24 (2013.01); G10L 21/0208 (2013.01);
Abstract

A speech recognition system comprises: an input, for receiving an input signal from at least one microphone; a first buffer, for storing the input signal; a noise reduction block, for receiving the input signal and generating a noise reduced input signal; a speech recognition engine, for receiving either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block; and a selection circuit for directing either the input signal output from the first buffer or the noise reduced input signal from the noise reduction block to the speech recognition engine.


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