	US 12,105,224 B2
	LiDAR adaptive single-pass histogramming for low power LiDAR system
Yibing Michelle Wang, Temple City, CA (US); and Chunji Wang, Azusa, CA (US)
Assigned to Samsung Electronics Co., Ltd, (KR)
Filed by Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed on Jul. 14, 2022, as Appl. No. 17/865,126.
Claims priority of provisional application 63/298,622, filed on Jan. 11, 2022.
Prior Publication US 2023/0221419 A1, Jul. 13, 2023
Int. Cl. G01S 7/4865 (2020.01); G01S 17/10 (2020.01)

CPC G01S 7/4865 (2013.01) [G01S 17/10 (2013.01)]

20 Claims

1. A single pass light detection and ranging (LiDAR) laser method, comprising:

building a coarse histogram;

detecting a first peak of laser pulses in the coarse histogram;

determining whether the first peak height is greater than a first threshold and a location of the first peak is less than or equal to a second threshold;

when determining that the first peak height is greater than the first threshold and the location of the first peak is less than or equal to the second threshold:

building a fine histogram; and

detecting a peak of laser pulses in the fine histogram, and

when determining that the first peak height is less than or equal to the first threshold and the location of the first peak is greater than the second threshold:

continuing building the coarse histogram; and

detecting a second peak of the laser pulses in the coarse histogram.