US 11,700,438 B2
Vision sensor and operating method thereof
Jaeho Baek, Suwon-si (KR); Jeongseok Kim, Suwon-si (KR); and Jongseok Seo, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Dec. 14, 2021, as Appl. No. 17/550,196.
Claims priority of application No. 10-2020-0175832 (KR), filed on Dec. 15, 2020.
Prior Publication US 2022/0191370 A1, Jun. 16, 2022
Int. Cl. H04N 23/52 (2023.01); H04N 25/77 (2023.01); H04N 25/709 (2023.01); G01K 7/02 (2021.01)
CPC H04N 23/52 (2023.01) [H04N 25/77 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A vision sensor, comprising:
a pixel array comprising a plurality of pixels;
a voltage generator configured to generate a reset bias voltage provided to each of the plurality of pixels;
a temperature comparing circuit configured to output a switching setting value according to a result of comparing temperature information with at least one reference temperature value; and
a voltage level controller configured to generate a reset bias setting signal based on the switching setting value,
wherein the reset bias setting signal adjusts a voltage level of the reset bias voltage.