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, 2023
Filed:
Oct. 22, 2019
Applicant:
Tdk Electronics Ag, Munich, DE;
Inventors:
Assignee:
TDK ELECTRONICS AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 17/00 (2006.01); H04R 17/10 (2006.01);
U.S. Cl.
CPC ...
H04R 17/10 (2013.01);
Abstract
A sound transducer and a method for operating a sound transducer are disclosed. In an embodiment a sound transducer includes a first piezoelectric element having first external electrodes configured to generate an acoustic signal from an electrical signal or vice versa, and at least one second external electrode, wherein the second external electrode is separately controllable from the first external electrodes in order to set electro-acoustic properties of the sound transducer.