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:
Dec. 12, 2023
Filed:
Oct. 22, 2021
Applicant:
Massachusetts Institute of Technology, Cambridge, MA (US);
Inventors:
Jinchi Han, Cambridge, MA (US);
Jeffrey H. Lang, Sudbury, MA (US);
Vladimir Bulovic, Lexington, MA (US);
Assignee:
Massachusetts Institute of Technology, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 17/02 (2006.01); H04R 1/40 (2006.01); H04R 7/12 (2006.01); H04R 3/00 (2006.01); H10N 30/084 (2023.01); H10N 30/88 (2023.01);
U.S. Cl.
CPC ...
H04R 17/025 (2013.01); H04R 1/403 (2013.01); H04R 1/406 (2013.01); H04R 3/005 (2013.01); H04R 7/127 (2013.01); H10N 30/084 (2023.02); H10N 30/883 (2023.02); H04R 2400/01 (2013.01);
Abstract
An active acoustic system includes a thin-film sheet having an array of piezoelectric microstructures embossed in the film. Each piezoelectric microstructure may act as a speaker and/or a microphone. A control circuit is configured to individually address the piezoelectric microstructures to provide a separate voltage signal to, or receive a separate voltage signal from, each piezoelectric microstructure.