Title:
IMAGING DEVICE AND PHOTODETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/014107
Kind Code:
A1
Abstract:
An imaging device according to an embodiment of the present disclosure comprises: photoreception pixels that can generate pixel signals each including the pixel voltage in accordance with a respective photoreception amount; a first connection terminal that is connected to a first external capacitor; a first voltage generation circuit that can generate a voltage at the first connection terminal; a drive circuit that can drive the photoreception pixels on the basis of the voltage at the first connection terminal; a reference signal generation circuit that can generate a reference signal having a ramp waveform; a noise correction circuit that can generate a noise correction signal in accordance with the voltage at the first connection terminal and that can superimpose the noise correction signal on the reference signal; a comparison circuit that can compare the pixel signals with the reference signal on which the noise correction signal has been superimposed; and a processing circuit that can calculate pixel values on the basis of the comparison results of the comparison circuit.
Inventors:
MATSUURA TOMOHIRO (JP)
Application Number:
PCT/JP2023/018082
Publication Date:
January 18, 2024
Filing Date:
May 15, 2023
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H04N25/60; H04N25/76; H04N25/78
Domestic Patent References:
| WO2020054629A1 | 2020-03-19 |
Foreign References:
| JP2021093697A | 2021-06-17 | |||
| JPH05347519A | 1993-12-27 | |||
| JP2020025249A | 2020-02-13 |
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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