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:
May. 23, 2023
Filed:
Mar. 01, 2019
Beijing Voyager Technology Co., Ltd., Beijing, CN;
Zuow-Zun Chen, Mountain View, CA (US);
Jihua Li, Mountain View, CA (US);
Lingkai Kong, Mountain View, CA (US);
Youmin Wang, Mountain View, CA (US);
Yue Lu, Mountain View, CA (US);
Quin Zhou, Mountain View, CA (US);
Beijing Voyager Technology Co., Ltd., Beijing, CN;
Abstract
Apparatuses and methods for controlling a micro-mirror are provided. In one example, a controller is coupled with a micro-mirror assembly comprising a micro-mirror, an actuator, and a sensor. The controller is configured to: receive a reference signal including information of a target oscillatory rotation of the micro-mirror; receive, from the sensor, the measurement signal of an oscillatory rotation of the micro-mirror; determine, based on the measurement signal and the information included in the reference signal, a difference between the oscillatory rotation of the micro-mirror and the target oscillatory rotation; receive an input control signal; generate, based on the difference and the input control signal, an output control signal to control at least one of a phase or an amplitude of the oscillatory rotation of the micro-mirror; and transmit the output control signal to the actuator.