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Patent Searching and Data


Title:
IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/075119
Kind Code:
A1
Abstract:
[Problem] To provide an imaging device with low-noise and a high dynamic-range. [Solution] An imaging device comprises: a conversion unit that converts an incident electromagnetic wave to an electric charge; a first capacitor that accumulates the electric charge when a voltage in accordance with the electric charge is less than or equal to a prescribed threshold; a second capacitor that accumulates the electric charge when the voltage exceeds the threshold; a voltage conversion circuit that converts the electric charges accumulated in the first capacitor and the second capacitor to voltages; a first storage unit that stores the voltage in accordance with the accumulated electric charge of the first capacitor after a first period has elapsed since the first capacitor started accumulating the electric charge; and a second storage unit that stores the voltage in accordance with the accumulated electric charges of the first capacitor and the second capacitor after a second period that is longer than the first period has elapsed since the first capacitor started accumulating the electric charge.

Inventors:
SUZUKI ATSUSHI (JP)
MIURA TAKAHIRO (JP)
MURAMATSU YOSHINORI (JP)
MATSUMOTO SHIZUNORI (JP)
Application Number:
PCT/JP2021/035554
Publication Date:
April 14, 2022
Filing Date:
September 28, 2021
Export Citation:
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Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H04N5/3745; G01T1/24; G01T7/00; H01L27/144; H01L27/146; H04N5/32; H04N5/374
Foreign References:
JP2016082255A2016-05-16
JP2015087242A2015-05-07
JP2014112760A2014-06-19
JP2013503325A2013-01-31
JP2002533691A2002-10-08
JP2016082255A2016-05-16
Attorney, Agent or Firm:
NAKAMURA Yukitaka et al. (JP)
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