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.

Date of Patent:
Jul. 03, 2018

Filed:

Aug. 09, 2017
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Sayuri Nakayama, Kawasaki, JP;

Taro Togawa, Kawasaki, JP;

Takeshi Otani, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01); H04R 3/02 (2006.01); H03G 3/20 (2006.01); G10L 21/0272 (2013.01); G10L 21/0216 (2013.01); G10L 17/00 (2013.01); H04R 1/08 (2006.01); H04R 1/00 (2006.01);
U.S. Cl.
CPC ...
H03G 3/20 (2013.01); G10L 17/005 (2013.01); G10L 21/0216 (2013.01); G10L 21/0272 (2013.01); H04R 1/08 (2013.01); H04R 1/00 (2013.01);
Abstract

A gain adjustment apparatus includes a first output device configured to output a first audio signal, a second output device configured to output a second audio signal, a memory, and a processor coupled to the memory and configured to convert the first audio signal and the second audio signal to a first frequency spectrum and a second frequency spectrum, calculate an estimated difference between the first frequency spectrum and the second frequency spectrum based on a comparison of the first frequency spectrum with the second frequency spectrum, and output a first and second adjustment spectra corresponding to the first and second frequency spectra, the first and second adjustment spectra being adjusted on the basis of the first and second frequency spectra and the estimated difference.


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