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:
Mar. 24, 2015
Filed:
Mar. 09, 2010
Satoru Furuta, Tokyo, JP;
Hirohisa Tasaki, Tokyo, JP;
Satoru Furuta, Tokyo, JP;
Hirohisa Tasaki, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A band separating unitcarries out a band division of a plurality of power spectra into which an input signal is converted by a time-to-frequency converting unitto combine power spectra into each subband, and a band representative component generating unitdefines a power spectrum having a maximum among the plurality of power spectra within each subband as a representative power spectrum. A noise suppression amount generating unitcalculates an amount of noise suppression for each subband by using the representative power spectrum and a noise spectrum, and a noise suppressing unitsuppresses the amplitudes of the power spectra according to the amount of noise suppression.