公开(公告)号：US20230318260A1

公开(公告)日：2023-10-05

申请号：US18125103

申请日：2023-03-22

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Yanmin LI

IPC: H01S5/0683 ,  H01S5/40

CPC classification number: H01S5/0683 ,  H01S5/4025 ,  G01S7/4815

Abstract: This application relates to a calibration apparatus, a laser beam emission circuit and an electronic device. The calibration apparatus is applied to the laser beam emission circuit, where the laser beam emission circuit includes N lasers, and the calibration apparatus includes: a detection module, configured to detect optical power of an ith laser; and a control module, configured to adjust an ith control signal based on a detection result of the detection module. The control module is further configured to establish a mapping relationship between the ith laser and the ith control signal when the ith optical power is equal to the target optical power.

公开(公告)号：US20220107394A1

公开(公告)日：2022-04-07

申请号：US17551012

申请日：2021-12-14

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Yanmin LI ,  Zhen ZHANG ,  Shengqiang PAN

IPC: G01S7/481

Abstract: The present disclosure relates to a laser receiving device and a LiDAR. An isolation component is provided between a plurality of parallel sensor groups, and an isolation component is provided between a plurality of amplifier groups in parallel, so that a plurality of parallel receiving channels each form an independent current loop, thereby reducing noise crosstalk among signal receiving channels and improving the signal-to-noise ratio of the laser receiving device.