Image capturing apparatus
AssigneeCanon Kabushiki Kaisha
InventorNobuhiro Takeda
Life of this patent
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Abstract
An object of the present invention is to eliminate the influences of the leakage etc. of charges from a photodiode to a storage part during the electronic shutter operation. To achieve this object, the present invention includes: a photodiode which generates and accumulates a signal charge according to the amount of light from an object; an amplification part which amplifies a signal charge outputted from the photodiode and outputs the amplified signal to the outside; a storage part which temporarily stores the signal charge; and a transfer device which transfers the signal outputted from the photo-electric conversion device to the storage part via the amplification part.
Claims6
An image capturing apparatus comprising:
- a plurality of pixels arranged in a two-dimensional manner, each of the plurality of pixels including a photo-electric conversion device which generates and accumulates a signal according to the amount of light from an object, an output device which outputs a signal, outputted from the photo-electric conversion device, to the outside of the pixel, a storage device which temporarily stores the signal,
- a first transfer device which transfers the signal outputted from the photo-electric conversion device to a storage capacitor of the output device, and a second transfer device which transfers the signal of the storage capacitor of the output device to the storage device and transfers the signal of the storage device to the storage capacitor of the output device;
- and
- a drive circuit which transfers the signal outputted from the photo-electric conversion device to the storage device of the output device by the first transfer device, and transfers the signal of the storage capacitor of the output device to the storage device by the second transfer device, and then transfers the signal from the storage device to the storage capacitor of the output device by the second transfer device,
- wherein, when the signal outputted from the photo-electric conversion device is transferred to the output device, the drive circuit outputs at least part of the signal from the output device to the outside, and then transfers the signal from the storage capacitor of the output device to the storage device.
Dependencies are inferred from the claim text.