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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.:

US 12786638 B1

PDFFull Text
Date of Patent:
Nov. 03, 2026

Filed:

Nov. 01, 2023

Active piezoelectric sheet with piezoelectric microstructures

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:

Daly, Crowley, Mofford & Durkee, LLP

Primary Examiner:

William A Jerez Lora

Int. Cl.
CPC ...
H04R 17/02 (2006.01); H04R 1/40 (2006.01); H04R 3/00 (2006.01); H04R 7/12 (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.

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Han, Jinchi. (2026). Active piezoelectric sheet with piezoelectric microstructures (U.S. Patent No. 12786638). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12786638

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