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. 06, 2012
Filed:
Mar. 02, 2009
Applicants:
Hideo Kaneda, Tochigi, JP;
Naotaka Kishi, Kanagawa, JP;
Noboru Shiina, Saitama, JP;
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04R 5/02 (2006.01); H04R 9/06 (2006.01); H04R 1/02 (2006.01); H04B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A speaker system has a laterally extending body portion for supporting the back of the head of a user and a pair of right and left side portions respectively connected to the right and left ends of the body portion. A plurality of openings in side wall of each of two speaker boxes for making communication between the inside and the outside of each speaker box, for preventing sound leakage from each speaker unit and ensuring the sound pressure level in a low-frequency range of the audio frequencies reproducible by the speaker unit.