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:
Jun. 06, 2017
Filed:
Dec. 22, 2015
Snaptrack Inc., San Diego, CA (US);
Werner Ruile, Munich, DE;
Markus Mayer, Taufkirchen, DE;
Ulrike Rösler, Hebertshausen, DE;
Markus Hauser, Feldafing, DE;
Ingo Bleyl, Munich, DE;
Karl-Christian Wagner, Unterhaching, DE;
Wolfgang Sauer, Taufkirchen, DE;
Michael Jakob, Munich, DE;
Thomas Ebner, Munich, DE;
Edgar Schmidhammer, Stein an der Traun, DE;
Stefan Berek, Munich, DE;
Christoph Eggs, Rattenkirchen, DE;
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
An electroacoustic transducer has reduced loss due to acoustic waves emitted in the transverse direction. For this purpose, a transducer comprises a central excitation area, inner edge areas flanking the central excitation area, outer edge areas flanking the inner edge areas, and areas of the busbar flanking the outer edge areas. The longitudinal speed of the areas can be set so that the excitation profile of a piston mode is obtained.