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:
Sep. 14, 2004
Filed:
Feb. 25, 2003
Applicant:
Inventors:
Peter Hagn, Neufinsing, DE;
Peter Selmeier, Maitenbeth, DE;
Assignee:
EPCOS AG, Munich, US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/64 ;
U.S. Cl.
CPC ...
H03H 9/64 ;
Abstract
A DMS filter is proposed with first and second interdigital transducers as a signal input or output that are located between reflector structures, wherein at least one acoustic track has a middle transducer that is split into partial transducers symmetric with respect to the perpendicular to the direction of propagation. The DMS filter is connected in a symmetrical manner to a housing using connection pads or connection pins in order to produce an axis-symmetrical connection layout.