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:
Jul. 05, 2022
Filed:
May. 22, 2020
Applicant:
Wistron Corporation, New Taipei, TW;
Inventors:
Assignee:
Wistron Corporation, New Taipei, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G10L 21/0232 (2013.01); G06F 17/18 (2006.01); G10L 13/02 (2013.01);
U.S. Cl.
CPC ...
G10L 21/0232 (2013.01); G06F 17/18 (2013.01); G10L 13/02 (2013.01);
Abstract
A method of determining noise reduction in a signal includes transforming the signal to generate a spectrogram; determining sharp change in a frequency spectrum for each frame in the spectrogram; and comparing a counted number of frames having sharp change with a predetermined value. The signal is determined to be subject to noise reduction if the counted number is greater than the predetermined value.