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. 23, 2010
Filed:
May. 28, 2001
Daisuke Arai, Tokyo, JP;
Fujio Hayakawa, Tokyo, JP;
Toyoaki Kitano, Tokyo, JP;
Yutaka Kotani, Tokyo, JP;
Yutaka Yamagishi, Tokyo, JP;
Masahiro Ieda, Tokyo, JP;
Daisuke Arai, Tokyo, JP;
Fujio Hayakawa, Tokyo, JP;
Toyoaki Kitano, Tokyo, JP;
Yutaka Kotani, Tokyo, JP;
Yutaka Yamagishi, Tokyo, JP;
Masahiro Ieda, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
In correspondence with the left and right external ears of a listener occupying a seat, a three dimensional sound field reproducing unit includes at least more than two speakers disposed on a headrest on the top of a backrest of the seat, and three dimensional signal processing means which converts an output signal from a sound source into a three dimensional sound field signal for supplying it to each of the speakers. Three dimensional sound field with high accuracy and fidelity is reproduced near the external ears of the listener.