Method and apparatus for performing autofocusing using summed signals
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United States of America Patent
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Sep 24, 2024
Grant Date -
Jun 1, 2023
app pub date -
Sep 26, 2022
filing date -
Nov 26, 2021
priority date (Note) -
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Abstract
An image sensor, including a pixel array including a first unit pixel including first a plurality of photodiodes and a second unit pixel including a second plurality of diodes; a readout circuit configured to: obtain a reset signal from the first unit pixel and the second unit pixel, obtain a first single pixel signal from a first photodiode of the first unit pixel, and a second single pixel signal from a second photodiode of the second unit pixel, and obtain a first summed pixel signal from the first unit pixel, and a second summed pixel signal from the second unit pixel, wherein the first photodiode is disposed in position with respect to the first unit pixel which is different from a position of the second photodiode with respect to the second unit pixel.
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