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:
Jul. 20, 2004
Filed:
Jan. 08, 2003
Applicant:
Inventors:
Ryoichi Itakura, Tokyo, JP;
Katsuhiko Umeda, Tokyo, JP;
Assignee:
Jamco Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64D 1/100 ;
U.S. Cl.
CPC ...
B64D 1/100 ;
Abstract
A ceiling panel speaker comprises ceiling panel vibrating plates and exciter units mounted on said vibrating plates , each exciter unit connected via line to an amplifier not shown. The ceiling panel vibrating plates are aligned to form a longitudinal size L extending above one or more aisles within the cabin, so that the ceiling panel speaker realizes a long surface sound source. The sound waves output from the ceiling panel speaker are transmitted along inner wall panels etc. and spread throughout the closed space of the passenger cabin