| CPC H04N 25/75 (2023.01) [H04N 25/771 (2023.01); H04N 25/772 (2023.01); H04N 25/30 (2023.01)] | 14 Claims |
|
1. An imaging device comprising:
a conversion circuit that converts an incident electromagnetic wave into a charge;
a first capacitor that accumulates charge when a voltage corresponding to the charge is equal to or lower than a predetermined threshold;
a second capacitor that accumulates charge when the voltage exceeds the threshold;
a voltage conversion circuit that converts the charges accumulated in the first capacitor and the second capacitor into voltages;
a first storage circuit that stores a voltage corresponding to the accumulated charge in the first capacitor after a lapse of a first period since the first capacitor has started accumulating the charge;
a second storage circuit that stores a voltage corresponding to the accumulated charges in the first capacitor and the second capacitor after a lapse of a second period longer than the first period since the first capacitor has started accumulating the charge;
a first reset circuit that discharges the accumulated charges in the first capacitor and the second capacitor for initialization;
a third storage circuit that stores an initialization voltage when the first capacitor and the second capacitor are initialized; and
a fourth storage circuit that stores a voltage of a path connected to the first reset circuit when the initialization by the first reset circuit is released.
|