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:
Oct. 23, 2018
Filed:
Dec. 23, 2016
Kabushiki Kaisha Toshiba, Tokyo, JP;
Makoto Hirohata, Kanagawa, JP;
Yusuke Kida, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A noise suppression device includes an estimating unit that estimates, from a feature quantity representing the feature in each frequency range of a first acoustic signal which represents sound, the noise component of the feature quantity; a calculating unit that calculates, from the feature quantity and the noise component for each frequency range, a first suppression coefficient to be used in suppressing noise included in the first acoustic signal; a first attenuating unit that attenuates the first suppression coefficient in the time domain and calculates a second suppression coefficient; a second attenuating unit that attenuates the second suppression coefficient in the frequency domain and calculates a third suppression coefficient; and a generating unit that estimates, from the feature quantity and the third suppression coefficient, a voice component of the feature quantity and generates a second acoustic signal in which the noise included in the first acoustic signal is suppressed.