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:
Dec. 05, 2017
Filed:
Apr. 26, 2013
Applicant:
Friedrich Reining, Vienna, AT;
Inventor:
Friedrich Reining, Vienna, AT;
Assignee:
Sound Solutions International Co., Ltd., Beijing, CN;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 9/02 (2006.01); H04R 9/04 (2006.01); H04R 9/06 (2006.01); H04R 3/00 (2006.01); H04R 29/00 (2006.01);
U.S. Cl.
CPC ...
H04R 9/02 (2013.01); H04R 9/041 (2013.01); H04R 9/063 (2013.01); H04R 3/007 (2013.01); H04R 29/003 (2013.01); H04R 2209/041 (2013.01);
Abstract
An audio system comprising an electro-acoustic transducer having two stacked voice coils mechanically linked to a membrane. The voice coils are oscillatingly suspended in the magnetic field of a permanent magnet focused by a pole plate and are mechanically arranged symmetrical to the pole plate while in a rest position. The audio system further comprises two driver circuits connected to the electro-acoustic transducer.