| CPC H04N 25/78 (2023.01) | 27 Claims |
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1. An image sensor comprising:
a first capacitor configured to sample a coarse ramp signal;
a second capacitor configured to sample a sum of a voltage of the first capacitor and a fine ramp signal;
a comparator configured to generate a comparison signal obtained by comparing a pixel voltage received from a pixel with the voltage of the first capacitor or a voltage of the second capacitor; and
a data output unit configured to output bit data corresponding to the pixel, based on the comparison signal.
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