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Photoelectric conversion device and method of driving photoelectric conversion device

專利號
US11039057B2
公開日期
2021-06-15
申請人
CANON KABUSHIKI KAISHA（JP Tokyo）
發(fā)明人
Kei Ochiai
IPC分類
H04N5/232
技術(shù)領(lǐng)域
readout,pixel,row,pixels,signal,in,th,circuit,control,conversion
地域： Tokyo

摘要

A photoelectric conversion device includes a pixel region where pixels are arranged to form rows and columns, and a pixel control circuit that supplies control signals to the pixels. The pixel region includes first to fourth regions, a first pixel in the first region and a second pixel in the second region are arranged on different columns on a first row, a third pixel in the third region and a fourth pixel in the fourth region are arranged on different rows on a first column, and the first row on which the first and second pixels are arranged is arranged between rows on which the third and fourth pixels are arranged. The pixel control circuit simultaneously reads out pixel signals of the first and second pixels in a first period and simultaneously reads out pixel signals of the third and fourth pixels in a second period.

說明書

As described above, according to the present embodiment, influence of pattern noise superimposed on a pair of image data can be suppressed, and the accuracy of focusing in autofocusing can be improved.

Fourth Embodiment

A photoelectric conversion device and a method of driving the same according to a fourth embodiment of the present invention will be described with reference to FIG. 9. FIG. 9 is a block diagram illustrating a general configuration of the photoelectric conversion device according to the present embodiment. The same components as those in the photoelectric conversion devices according to the first to third embodiments are labeled with the same reference, and the description thereof will be omitted or simplified.

In the present embodiment, a photoelectric conversion device configured to use a single readout circuit 30 to implement the functions of the readout circuits 30 and 50 in the photoelectric conversion device according to the third embodiment will be described.

The photoelectric conversion device 100 of the present embodiment is the same as that of the third embodiment in that only the control lines 12 extending in the first direction are included as control lines that supply control signals to respective pixels P from the pixel control circuit 20 as illustrated in FIG. 9. Further, the photoelectric conversion device of the present embodiment is the same as that of the third embodiment in that the output lines 16 and the output lines 18 are arranged in parallel as illustrated in FIG. 9.

權(quán)利要求

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