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:
Apr. 12, 2011
Filed:
Apr. 07, 2006
Applicants:
Fredrik M. Stenmark, Malmö, SE;
Carl Ståhl, Uppsala, SE;
Inventors:
Fredrik M. Stenmark, Malmö, SE;
Carl Ståhl, Uppsala, SE;
Assignee:
Sony Ericsson Mobile Communications AB, Lund, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/20 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electro-acoustic communications unit () may include an acoustic driver () which, when operated, emits acoustic waves in two directions. A hermetically sealed container () attached to the acoustic driver may include a gas other than air. The gas may transport acoustic waves generated by the acoustic driver.