公开(公告)号：US20250164617A1

公开(公告)日：2025-05-22

申请号：US18406133

申请日：2024-01-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Yibing Michelle WANG ,  Tze Ching FUNG ,  Alfonso Cesar Barredo ALBASON ,  Chunji WANG

IPC: G01S7/4914 ,  G01S7/481 ,  G01S7/4915 ,  G01S7/497 ,  G01S17/14

Abstract: Provided are systems, methods, and apparatuses for up and down counting for efficient laser spot finding in LiDAR. In one or more examples, the systems, devices, and methods include dividing a pixel array into multiple macro blocks, a first macro block including at least a first pixel and a second pixel of the pixel array and initializing a first photon counter of the first pixel and a second photon counter of the second pixel. The systems, devices, and methods include determining an ambient photon count of the first photon counter based on performing a set number of ambient cycles with a laser transmitter off, determining a laser photon count of the first photon counter with the laser transmitter on, and using the first pixel to perform a time-of-flight measurement based on the first pixel being selected according to the ambient photon count and the laser photon count.