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US 8,570,415 B2Granted
Image sensing system and control method therefor
AssigneeCanon Kabushiki Kaisha
InventorNobuhiro Takeda
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AssigneeCanon Kabushiki Kaisha
InventorNobuhiro Takeda
Estimating the term…
An image sensing system comprises a solid-state image sensor including a plurality of pixels arranged in a matrix and vertical output lines connected by column to each pixel, with signals in accordance with voltages of the vertical output lines each output to a horizontal output line via column circuits provided for each vertical output line. Electrical charges in photoelectric conversion elements included in the pixels are not output to the vertical output lines, while signals corresponding to voltages of the vertical output lines and output to the horizontal output line via the column circuits are averaged by column to acquire a correction value. Then, electrical charges in the photoelectric conversion elements are output by row to the vertical output lines, and signals corresponding to voltages of the vertical output lines and output to the horizontal output line via the column circuits are corrected using the correction value.
An image sensing system comprising:
A control method for an image sensing system that includes an image sensor in which a plurality of pixels are arranged in a matrix, wherein the plurality of pixels include a plurality of photoelectric conversion elements, a plurality of source follower amplifiers configured to amplify and convert charges accumulated in a plurality of accumulation units into voltage signals, a plurality of transfer units configured to transfer charges generated in the plurality of photoelectric conversion elements to the plurality of accumulation units, a plurality of selection switches configured to connect the plurality of source follower amplifiers to corresponding ones of a plurality of output lines that are arranged for a plurality of columns, and a plurality of column circuits provided for the plurality of output lines, the control method comprising:
Dependencies are inferred from the claim text.