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:
Apr. 28, 2026
Filed:
Aug. 24, 2023
Waves Audio Ltd., Tel Aviv, IL;
Gabriel Zeltzer, Lapid, IL;
Meir Shaashua, Tel Aviv, IL;
Waves Audio Ltd, Tel Aviv, IL;
Abstract
Monitoring time-dependent displacement of a membrane in an electrostatic acoustic device. An oscillator is configured to produce a probe signal varying at radio frequency. The probe signal is symmetrically coupled into the first and second electrodes. DC bias voltages are symmetrically applied to the first and second electrodes. A voltage signal from the membrane is sensed and input at a high pass filter input. A multiplier is configured to input the filtered signal modulated at radio frequency and portion of the probe signal. The multiplier is configured to output a multiplied signal which is demodulated to produce therefrom an audio output signal responsive to the time-dependent displacement of the membrane.