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. 07, 2017
Filed:
Jul. 11, 2013
Applicant:
Epcos Ag, Munich, DE;
Inventors:
Gholamreza Dadgar Javid, Munich, DE;
Thomas Ebner, Munich, DE;
Assignee:
EPCOS AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/145 (2006.01); H03H 9/64 (2006.01);
U.S. Cl.
CPC ...
H03H 9/6406 (2013.01); H03H 9/14505 (2013.01);
Abstract
An electroacoustic transducer having an alternative finger structure is provided. The number of fingers of a cell of length A is divisible by four. The electrode fingers of the cell are divided into four groups. The distance (Δ) between the second group and the third group is less than the distance (Δ) between the first group and the second group and less than the distance (Δ) between the third group and the fourth group.