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:
Aug. 27, 2024
Filed:
Jun. 21, 2021
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Chang Joon Park, Sunnyvale, CA (US);
Martin Francis Galinski, Santa Clara, CA (US);
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Techniques are described herein for dynamically adjusting a resonant frequency of a resonance circuit to optimize power transfer to a mirror device such as a MEMS mirror. A variable capacitance circuit can be operated responsive to a bias control signal. A capacitance control circuit can vary the bias control signal to the resonance circuit responsive to a sense signal. The sense circuit is configured to generate the sense signal responsive to an output of the mirror device. By monitoring a signal level from the output of the mirror device, and adjusting the bias control signal of the resonance circuit, the exact resonance frequency of the resonance circuit can be adjusted until a peak signal level is observed, thus improving the efficiency of the energy transferred from the driver circuitto the mirror device, and counteracting the impact of parasitic capacitances on the resonance.