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:
Mar. 11, 2025
Filed:
May. 06, 2022
Hesai Technology Co., Ltd., Shanghai, CN;
Yongfeng Gao, Shanghai, CN;
Shaoqing Xiang, Shanghai, CN;
Hesai Technology Co., Ltd., Shanghai, CN;
Abstract
A frame synchronization method for a scanning vibrating mirror and a lidar are provided. The method includes: obtaining current parameters of a reference signal, where the parameters of the reference signal include a reference signal period and a current first phase; obtaining signal parameters of a frame scanning signal along a first rotation axis of the vibrating mirror, where the signal parameters include a frame scanning period and a current second phase; determining a phase difference between the reference signal and the frame scanning signal based on the current parameters of the reference signal and the signal parameters of the frame scanning signal of the current scanning period; and determining a scanning duration of a first scanning stage of the frame scanning signal in a next scanning period based on the phase difference. Accordingly, an actual frame scanning period of the scanning vibrating mirror tracks and synchronizes with external frame signals.