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:
Sep. 23, 2025
Filed:
Mar. 27, 2023
Honda Motor Co., Ltd., Tokyo, JP;
Xun Wang, Wako, JP;
Toshio Inoue, Wako, JP;
HONDA MOTOR CO., LTD., Tokyo, JP;
Abstract
Provided is a sound field control device configured to produce a listening area where a travel sound effect is audible and a quiet area in a sound field in a vehicle using a plurality of speakers. The sound field control device includes: a periodic waveform generator configured to generate different phase two periodic waveforms related to the travel sound effect based on the vehicle speed, and a sound field controller configured to, for each of the plurality of speakers, individually amplify and combine the different phase two periodic waveforms to generate a combined result using an SAN filter having coefficients set for the speaker based on locations of the listening area and the quiet area and feed the combined result to the speaker.