Patent ID: 11937004
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 12:
13. A photoelectric conversion apparatus comprising:
a photodiode configured to perform avalanche multiplication;
a first circuit configured to be controlled by a control signal generated by a generation circuit to be in a standby state where the avalanche multiplication by the photodiode is possible and in a charging state for returning the photodiode having performed the avalanche multiplication to the standby state; and
a second circuit including a counter and a selection circuit,
wherein a signal corresponding to an output of the photodiode and a predetermined voltage are input to the selection circuit, and
wherein the selection circuit selects, on a basis of the control signal, one of the signal corresponding to the output of the photodiode and the predetermined voltage, and outputs the selected one to the counter.