US Patent 11393870 Photoelectric conversion device, imaging system, and mobile apparatus

Provided is a photoelectric conversion device including: a pixel including a plurality of photoelectric conversion units; and a select unit configured to control each of the plurality of photoelectric conversion units to be in an active state or an inactive state. The plurality of photoelectric conversion units has a first group including a first avalanche diode and a second group including a second avalanche diode. The select unit controls the second group to be in the inactive state in a first case of controlling the first group to be in the active state, and the select unit controls the first group to be in the inactive state in a second case of controlling the second group to be in the active state. The pixel has no photoelectric conversion unit which is in the active state in both the first case and the second case.