Photodetection device, imaging device and electronic equipment
AssigneeSony Semiconductor Solutions Corporation
InventorYURI KATO
Life of this patent
Estimating the term…
Abstract
To improve detection accuracy of an event signal while enabling mixed mounting of gradation pixels and event pixels. A photodetection device includes: a gradation pixel that detects a gradation signal; an event pixel that detects an event signal; a light-shielded event pixel in which the event pixel is shielded from light; and a detection circuit that detects a false event output from the event pixel on the basis of an output from the light-shielded event pixel. A correction circuit that corrects a false event detected by the detection circuit may be further included. A notification circuit that notifies of a false event detected by the detection circuit may be further included.
Claims20
A photodetection device comprising:
- a gradation pixel that detects a gradation signal;
- an event pixel that detects an event signal;
- a light-shielded event pixel in which the event pixel is shielded from light;
- and
- a detection circuit that detects a false event output from the event pixel on a basis of an output from the light-shielded event pixel.
An imaging device comprising:
- an effective pixel region in which pixels are arranged in a row direction and a column direction including a gradation pixel that detects a gradation signal and an event pixel that detects an event signal;
- and
- a light-shielded event pixel that is provided in the effective pixel region and in which the event pixel is shielded from light.
Electronic equipment comprising:
- a photodetection device including
- a gradation pixel that detects a gradation signal,
- an event pixel that detects an event signal,
- a light-shielded event pixel in which the event pixel is shielded from light, and
- a detection circuit that detects a false event output from the event pixel on a basis of an output from the light-shielded event pixel;
- and
- a processing section that processes the event signal on a basis of the false event detected by the detection circuit.
Dependencies are inferred from the claim text.