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:
May. 29, 2018
Filed:
Sep. 29, 2016
Applicant:
Sound Solutions International Co., Ltd., Beijing, CN;
Inventors:
Christian Lembacher, Gramatneusiedl, AT;
Armin Timmerer, Vienna, AT;
Hüdaverdi Ergül, Ternitz, AT;
Murat Polat, Vienna, AT;
Assignee:
Sound Solutions International Co., Ltd., Beijing, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04R 25/00 (2006.01); H04R 7/26 (2006.01); H04R 31/00 (2006.01); H04R 9/06 (2006.01); H04R 7/10 (2006.01);
U.S. Cl.
CPC ...
H04R 7/26 (2013.01); H04R 31/003 (2013.01); H04R 7/10 (2013.01); H04R 9/06 (2013.01); H04R 2307/204 (2013.01);
Abstract
A method of thinning a multilayer laminate material used for a membrane stiffening plate is provided to obtain a membrane stiffening plate having a thickness less than currently known in the art. The method provides for a significant reduction in the thickness of a membrane stiffening plate and provides for a mechanism to tune the cut-off frequency of a loudspeaker on which the membrane stiffening plate is used.