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Abstract

A solid-state image sensor includes a pixel array having pixels, an AD converter configured to generate digital signals by AD-converting analog signals output from the pixel array, a plurality of memories, and an output line. A horizontal transfer period in which the plurality of memories sequentially output digital signals to the output line includes first and second periods. In the first period, digital signals having a predetermined value are continuously output to the output line from a plurality of first memories out of the plurality of memories. In the second period, the digital signals which have been AD-converted by the AD converter are output to the output line from a plurality of second memories, separate from the plurality of first memories, out of the plurality of memories.

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First Claim