US 12,284,453 B2
Photoelectric conversion device, imaging system, movable object, equipment, signal processing device and signal processing method
Tomoya Kokado, Kanagawa (JP); and Hiroaki Taniguchi, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on May 4, 2023, as Appl. No. 18/312,394.
Claims priority of application No. 2022-077472 (JP), filed on May 10, 2022; and application No. 2023-026048 (JP), filed on Feb. 22, 2023.
Prior Publication US 2023/0370737 A1, Nov. 16, 2023
Int. Cl. H04N 25/616 (2023.01); H04N 25/65 (2023.01); H04N 25/77 (2023.01)
CPC H04N 25/616 (2023.01) [H04N 25/65 (2023.01); H04N 25/77 (2023.01)] 33 Claims
OG exemplary drawing
 
1. A photoelectric conversion device comprising:
a plurality of pixels arranged to form a plurality of columns;
a plurality of column circuits provided corresponding to the plurality of columns and each configured to read out a signal acquired by a pixel of the corresponding column;
a first processing unit configured to perform an arithmetic processing on each of the signals output from the plurality of column circuits, the arithmetic processing including a processing of reducing a gain error component of the column circuit generated in the column circuit and superimposed on the signal; and
a second processing unit configured to perform an arithmetic processing of reducing a noise generated in the pixel and superimposed on the signal on the signals processed by the first processing unit.