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. 02, 2014
Filed:
Dec. 24, 2012
Applicant:
Chung Hua University, Hsinchu, TW;
Inventor:
Jium Ming Lin, Hsinchu, TW;
Assignee:
Chung Hua University, Hsinchu, TW;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 1/00 (2006.01); H04R 9/04 (2006.01); H04R 31/00 (2006.01); H04R 7/04 (2006.01); H04R 3/00 (2006.01); H04R 1/24 (2006.01);
U.S. Cl.
CPC ...
H04R 3/00 (2013.01); H04R 9/047 (2013.01); H04R 1/24 (2013.01); H04R 2307/025 (2013.01); H04R 31/00 (2013.01); H04R 7/045 (2013.01); H04R 9/045 (2013.01); H04R 2440/05 (2013.01);
Abstract
An electro-acoustic transducer includes an insulative flexible substrate, a base, and a magnetic field generator. The base includes a cavity and a magnetic portion disposed below the cavity. The insulative flexible substrate is configured to cover the cavity. The magnetic field generator can be disposed on the insulative flexible substrate and corresponds to the cavity. The magnetic field generator can produce a magnetic field and a reverse magnetic field to cause the magnetic field generator and the magnetic portion of the base to attract and repel each other, thereby vibrating the insulative flexible substrate.