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.:

US 10032449 B1

Date of Patent:

Jul. 24, 2018

Filed:

Jun. 30, 2015

Keyword spotting system for achieving low-latency keyword recognition by using multiple dynamic programming tables reset at different frames of acoustic data input and related keyword spotting method

Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventors:

Chih-Sheng Chen, Hsinchu, TW;

Liang-Che Sun, Taipei, TW;

Assignee:

MEDIATEK INC., Hsin-Chu, TW;

Attorney:

Winston Hsu

Primary Examiner:

Kevin Ky

Int. Cl.

CPC ...

G10L 15/00 (2013.01); G10L 15/28 (2013.01); G10L 15/12 (2006.01); G10L 15/14 (2006.01); G10L 15/08 (2006.01);

U.S. Cl.

CPC ...

G10L 15/12 (2013.01); G10L 15/14 (2013.01); G10L 2015/088 (2013.01);

Abstract

A keyword spotting system includes a decoder having a storage device and a decoding circuit. The storage device is used to store a log-likelihood table and a plurality of dynamic programming (DP) tables generated for recognition of a designated keyword. The decoding circuit is used to refer to features in one frame of an acoustic data input to calculate the log-likelihood table and refer to at least the log-likelihood table to adjust each of the DP tables when recognition of the designated keyword is not accepted yet, where the DP tables are reset by the decoding circuit at different frames of the acoustic data input, respectively.

Find Patent Forward Citations