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. 03, 2026
Filed:
Sep. 18, 2023
Yamaha Corporation, Shizuoka, JP;
Kenji Ishizuka, Shizuoka, JP;
Takahiro Ohno, Shizuoka, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
A method includes acquiring a latency value defining delay of sound through a filter, acquiring a first group delay indicating delay for each frequency of sound of a first loudspeaker, acquiring a second group delay indicating delay for each frequency of sound of a second loudspeaker, calculating an adjustment amount for adjusting a first audio signal supplied to the first loudspeaker and/or a second audio signal supplied to the second loudspeaker, such that a difference in the sounds of the first and second loudspeakers in a target band is reduced, and generating, in accordance with the adjustment amount, a frequency response of a first filter that controls characteristics of the first audio signal and/or a frequency response of a second filter that controls characteristics of the second audio signal, while controlling a latency of the first filter and/or the second filter in accordance with the latency value.
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