The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2025
Filed:
Aug. 22, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Photoelectric conversion apparatus includes pixel array having effective pixel, a readout circuit configured to read out signal of the pixel array, and signal processing unit configured to perform correlated double sampling process and correction process on signals read out from the effective pixel by the readout circuit. The readout circuit has function of reading out signal of the pixel array with first gain, and function of reading out signal of the pixel array with second gain. Correction value for the correction process is generated based on difference between signal read out from the pixel array with the first gain when noise level is output from the pixel array, and signal read out from the pixel array with the second gain when noise level is output from the pixel array.