US 12,075,171 B2
Photoelectric conversion apparatus, photoelectric conversion system, transport apparatus, and signal processing apparatus
Jumpei Ashida, Kanagawa (JP); and Keisuke Takahashi, Kanagawa (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Jun. 10, 2022, as Appl. No. 17/837,245.
Claims priority of application No. 2021-101025 (JP), filed on Jun. 17, 2021.
Prior Publication US 2022/0408036 A1, Dec. 22, 2022
Int. Cl. H04N 25/42 (2023.01); H04N 25/63 (2023.01); H04N 25/633 (2023.01); H04N 25/75 (2023.01)
CPC H04N 25/42 (2023.01) [H04N 25/63 (2023.01); H04N 25/633 (2023.01); H04N 25/75 (2023.01)] 14 Claims
OG exemplary drawing
 
1. A photoelectric conversion apparatus comprising a pixel array in which a plurality of pixels are arranged in a matrix, and a signal processor configured to process a signal read out from the pixel array,
wherein the plurality of pixels are configured to be operable in a plurality of driving modes in which different signal readout methods are used, and
the signal processor comprises:
a selecting circuit configured to select, based on the driving mode set for each pixel among the plurality of driving modes, a first pixel group and a second pixel group among the plurality of pixels from regions of the pixel array, which have been designated to generate a correction value;
a correction value generation circuit configured to generate the correction value in accordance with a first representative value based on signals read out from the first pixel group and a second representative value based on signals read out from the second pixel group; and
a correcting circuit configured to correct, based on the correction value, the signal read out from the pixel array.