Invention Grant
- Patent Title: Active piezoelectric sheet with piezoelectric microstructures
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Application No.: US17508133Application Date: 2021-10-22
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Publication No.: US11843915B2Publication Date: 2023-12-12
- Inventor: Jinchi Han , Jeffrey H. Lang , Vladimir Bulovic
- Applicant: Massachusetts Institute of Technology
- Applicant Address: US MA Cambridge
- Assignee: Massachusetts Institute of Technology
- Current Assignee: Massachusetts Institute of Technology
- Current Assignee Address: US MA Cambridge
- Agency: DALY, CROWLEY, MOFFORD & DURKEE, LLP
- Main IPC: H04R17/02
- IPC: H04R17/02 ; H04R1/40 ; H04R7/12 ; H04R3/00 ; H10N30/084 ; H10N30/88

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.
Public/Granted literature
- US20230054412A1 ACTIVE PIEZOELECTRIC SHEET WITH PIEZOELECTRIC MICROSTRUCTURES Public/Granted day:2023-02-23
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