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Patent Searching and Data


Title:
IMAGE CAPTURE ELEMENT, DRIVE METHOD, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/025658
Kind Code:
A1
Abstract:
The present disclosure relates to an image capture element, a drive method, and an electronic device with which an image can be captured at higher speed. The image capture element is provided with: a pixel array in which a plurality of pixels are arranged in a matrix; an AD conversion unit which performs parallel AD conversion on a pixel signal output from the pixels for each of pixel columns arranged in the pixel array; and a reference signal generation unit which generates a reference signal that has a waveform with a slope of a certain gradient and that the AD conversion unit references during pixel signal AD conversion with respect to the same pixel signal. When the AD conversion unit performs multi-sampling in which a P-phase period sampling and a D-phase period sampling are performed at least once with respect to the same pixel signal, the reference signal generation unit generates the reference signal in which, among a plurality of slopes in the D-phase period, the sampling period for a second slope is set shorter than the sampling period for a first slope. The present technology can be applied in a CMOS image sensor equipped with a column-parallel ADC, for example.

Inventors:
OKAMOTO Ryuta (4-14-1 Asahi-cho, Atsugi-sh, Kanagawa 14, 〒2430014, JP)
UENO Yosuke (4-14-1 Asahi-cho, Atsugi-sh, Kanagawa 14, 〒2430014, JP)
TSUKUDA Yasunori (4-14-1 Asahi-cho, Atsugi-sh, Kanagawa 14, 〒2430014, JP)
Application Number:
JP2017/026409
Publication Date:
February 08, 2018
Filing Date:
July 21, 2017
Export Citation:
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Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORPORATION (4-14-1, Asahi-cho Atsugi-sh, Kanagawa 14, 〒2430014, JP)
International Classes:
H04N5/378; H03M1/56; H04N5/363; H04N5/374
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (Nishishinjukukimuraya Building 9F, 5-25 Nishi-Shinjuku 7-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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