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. 01, 2026
Filed:
Feb. 24, 2021
Ntt, Inc., Tokyo, JP;
Masahiro Fukui, Tokyo, JP;
Kazunori Kobayashi, Tokyo, JP;
Noriyoshi Kamado, Tokyo, JP;
Ryotaro Sato, Tokyo, JP;
NTT, Inc., Tokyo, JP;
Abstract
Provided is an acoustic system for a user who uses a seat of an aircraft, an automobile, or the like, which reproduces a sound that cannot be heard by surrounding users without using earphones or headphones. An acoustic system including a speaker system that includes at least one speaker unit pair including a positive speaker unit that emits a sound based on an acoustic signal of a predetermined sound source and a negative speaker unit that emits a sound based on an acoustic signal having an opposite phase to the acoustic signal, in which the speaker unit pair is configured such that a surface of the positive speaker unit and a surface of the negative speaker unit located foremost when viewed from a front direction are one plane perpendicular to a ground plane, and an arrangement of the positive speaker unit and the negative speaker unit when viewed from the front direction is parallel to a direction perpendicular to the ground plane, and is configured such that sounds emitted from the positive speaker unit and the negative speaker unit in a rear direction go around in the front direction.