US Patent Application 18323230. PHOTOELECTRIC CONVERSION DEVICE HAVING EXPANDED DYNAMIC RANGE AND TRANSFER ELECTRODES simplified abstract

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PHOTOELECTRIC CONVERSION DEVICE HAVING EXPANDED DYNAMIC RANGE AND TRANSFER ELECTRODES

Organization Name

CANON KABUSHIKI KAISHA==Inventor(s)==

[[Category:YASUSHI Nakata of Kanagawa (JP)]]

PHOTOELECTRIC CONVERSION DEVICE HAVING EXPANDED DYNAMIC RANGE AND TRANSFER ELECTRODES - A simplified explanation of the abstract

This abstract first appeared for US patent application 18323230 titled 'PHOTOELECTRIC CONVERSION DEVICE HAVING EXPANDED DYNAMIC RANGE AND TRANSFER ELECTRODES

Simplified Explanation

The patent application describes a photoelectric conversion device with two photoelectric conversion circuits, a floating diffusion portion, and transfer electrodes.

  • The device has two photoelectric conversion circuits with different sensitivities.
  • Charges generated in both circuits are transferred to a floating diffusion portion.
  • The first transfer electrode transfers charges from the first circuit to the floating diffusion portion.
  • The second transfer electrode transfers charges from the second circuit to the floating diffusion portion.
  • A control electrode controls the potential between the two circuits, allowing charges to move between them.


Original Abstract Submitted

A photoelectric conversion device includes first and second photoelectric conversion circuits, a floating diffusion portion, first and second transfer electrodes, and a first control electrode. The second photoelectric conversion circuit has sensitivity lower than that of the first photoelectric conversion circuit. Charges generated in the first photoelectric conversion circuit and the second photoelectric conversion circuit are transferred to the floating diffusion portion. The first transfer electrode is configured to transfer charges from the first photoelectric conversion circuit to the floating diffusion portion. The second transfer electrode is configured to transfer charges from the second photoelectric conversion circuit to the floating diffusion portion. The first control electrode is configured to control a potential between the first photoelectric conversion circuit and the second photoelectric conversion circuit so that charges are movable between the first photoelectric conversion circuit and the second photoelectric conversion circuit.

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