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:
Feb. 10, 2026
Filed:
Feb. 28, 2024
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Digital Solutions Corporation, Kawasaki, JP;
Akihiko Enamito, Kawasaki Kanagawa, JP;
Takahiro Hiruma, Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Kawasaki, JP;
TOSHIBA DIGITAL SOLUTIONS CORPORATION, Kawasaki, JP;
Abstract
According to one embodiment, an acoustic control apparatus includes a processor. The processor calculates acoustic filter coefficients which are smaller in number than a plurality of sound sources, based on a first relational expression between acoustic filters applied to a voice signal containing information of voice reproduced by each of the sound sources, which is based on a sound increase control law that increases voice pressure at a sound increase control point by voices reproduced by the sound sources, and a second relational expression between the acoustic filters, which is based on an acoustic power minimization control law that minimizes acoustic power for voices reproduced by the sound sources. The processor applies the calculated acoustic filter coefficients to an input voice signal, and branch a voice signal to which a common acoustic filter coefficient is applied, into at least two of the sound sources.