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:
Jun. 09, 2020
Filed:
Jun. 29, 2017
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Naoshi Matsuo, Yokohama, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A noise suppression device including: a processor configured to: divide a voice signal into frames such that two successive frames overlap each other; compute a frequency spectrum for the voice signal; remove a noise component from an amplitude component of the frequency spectrum to compute a noise suppression amplitude component; compare amplitude components or noise suppression amplitude components for each pair of successive frames to compute a comparison value for each frequency; compute a gain according to the comparison value for each frequency; compute a corrected amplitude component for each frequency by multiplying the noise suppression amplitude component by the corresponding gain; and compute a corrected voice signal based on the corrected amplitude component for each frequency.