Solid-state imaging apparatus, imaging system and driving method for solid-state imaging apparatus
AssigneeCanon Kabushiki Kaisha
InventorsMasanori Ogura, Toru Koizumi
Life of this patent
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Abstract
A solid-state imaging apparatus, an imaging system and a driving method for the solid-state imaging apparatus that can reduce jaggy while increasing speed of operation for reading out signals are provided. The driving method includes a first step of storing one or more signals from the plurality of pixels in each of the plurality of first holding units; a second step of adding the signals from the plurality of pixels stored in the plurality of first holding units; and a third step of outputting the signal stored in the second holding unit, such that at least a part of a period of the first step is overlapped with a period of the third step.
Claims18
A solid-state imaging apparatus comprising:
- a plurality of pixels;
- a first signal line connected commonly to the plurality of pixels;
- a read out unit connected to the first signal line;
- and
- a control unit for controlling operations of the plurality of pixels and the read out unit, wherein
- the read out unit has a plurality of first holding units arranged in parallel to each other, and a second holding unit, and
- the control unit performs a first driving mode including a first step of storing one or more signals from the plurality of pixels in each of the plurality of first holding units;
- a second step of adding the signals from the plurality of pixels stored in the plurality of first holding units;
- and a third step of outputting the signal stored in the second holding unit, such that at least a part of a period of the first step is overlapped with a period of the third step.
A solid-state imaging apparatus comprising:
- a plurality of pixels;
- a first signal line connected commonly to the plurality of pixels;
- a read out unit connected to the first signal line;
- and
- a control unit for controlling operations of the plurality of pixels and the read out unit, wherein
- the read out unit has a plurality of first holding units connected, to the first signal line, each through each of independently selectable switches, and a second holding unit for storing an addition signal derived by adding signals stored in the plurality of first holding units.
A driving method of a solid-state imaging apparatus comprising:
- a plurality of pixels;
- a first signal line connected commonly to the plurality of pixels;
- and
- a read out unit connected to the first signal line, wherein the read out unit has a plurality of first holding units arranged in parallel to each other, and a second holding unit, and the driving method comprises:
- a first step of storing one or more signals from the plurality of pixels in each of the plurality of first holding units;
- a second step of adding the signals from the plurality of pixels stored in the plurality of first holding units;
- and
- a third step of outputting the signal stored in the second holding unit, such that at least a part of a period of the first step is overlapped with a period of the third step.
Dependencies are inferred from the claim text.