US 12,267,603 B2
Photoelectric conversion device, imaging device, control method, and storage medium
Aihiko Numata, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Sep. 20, 2022, as Appl. No. 17/933,765.
Claims priority of application No. 2021-155380 (JP), filed on Sep. 24, 2021.
Prior Publication US 2023/0095243 A1, Mar. 30, 2023
Int. Cl. H04N 25/10 (2023.01); G16H 30/00 (2018.01); H04N 23/95 (2023.01)
CPC H04N 25/10 (2023.01) [G16H 30/00 (2018.01); H04N 23/95 (2023.01)] 18 Claims
OG exemplary drawing
 
1. A photoelectric conversion device including a pixel equipped with a photoelectric conversion circuit configured to output a signal in response to incidence of a photon, the photoelectric conversion device comprising:
a first measurement circuit configured to measure the signal output from the pixel;
a second measurement circuit configured to measure time from when the first measurement circuit starts measuring the signal until a measured value measured by the first measurement circuit reaches a first threshold value;
a selection circuit configured to switch a first measurement circuit to be connected to the second measurement circuit among a plurality of first measurement circuits; and
a control circuit configured to control timing of switching a connection of the second measurement circuit by the selection circuit,
wherein the first measurement circuit is arranged in each of a plurality of the pixels, and
wherein the second measurement circuit is arranged in each partial pixel area including a plurality of pixels having different spectral sensitivities from each other.