Solid-state imaging apparatus
AssigneeCanon Kabushiki Kaisha
InventorsMasanori Ogura, Toru Koizumi
Life of this patent
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Abstract
Provided is a solid-state imaging apparatus that is capable of preventing a harmful influence due to noise generated in a control line. The solid-state imaging apparatus includes: a plurality of pixels each including a photoelectric conversion unit for photoelectric converting to generate a signal; control lines for supplying control signals for driving the pixels; driving buffers for driving the control lines; and switching units for switching between a first path for supplying power source voltages from power source circuits to power source terminals of the driving buffers and a second path for supplying power source voltages from capacitors to the power source terminals of the driving buffers.
Claims8
A solid-state imaging apparatus comprising:
- a plurality of pixels each including a photoelectric conversion unit to generate a signal;
- a control line configured to supply a control signal for driving the pixels;
- a driving buffer configured to drive the control line;
- and
- a switching unit configured to switch between a first path for supplying a power source voltage from a power source circuit to a power source terminal of the driving buffer and a second path for supplying a power source voltage from a capacitor to the power source terminal of the driving buffer,
- wherein the switching unit selects the second path during a pixel signal reading out period in which a signal is read out from one of the pixels to outside of the one of the pixels.
The solid-state imaging apparatus comprising:
- a plurality of pixel each including a photoelectric conversion unit to generate a signal;
- a control line configured to supply a control signal for driving the pixels;
- a driving buffer configured to drive the control line;
- and
- a switching unit configured to switch between a first path for supplying a power source voltage from a power source circuit to a power source terminal of the driving buffer and a second path for supplying a power source voltage from a capacitor to the power source terminal of the driving buffer,
- wherein each of the pixels includes:
- a transfer switch configured to transfer the signal generated by the photoelectric conversion unit;
- and
- a reset switch configured to reset the signal in the photoelectric conversion unit,
- wherein the control line controls the transfer switch and the reset switch, and
- wherein the switching unit selects the first path at least during a period of controlling the reset switch, and a period controlling the transfer switch.
Dependencies are inferred from the claim text.