Title:
SOLID-STATE IMAGING ELEMENT AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/054629
Kind Code:
A1
Abstract:
A solid-state imaging element (10) is provided with: a noise cancelation signal generating circuit (12) that is connected to a pixel power source (PW), and that performs gain switching and polarity inversion on a generated first noise cancelation signal (NC1), and outputs the resultant signal as a second noise cancelation signal (XNC1); a DA converter (13) that generates and outputs a reference signal (RAMP) and that converts the current of the second noise cancelation signal (XNC1) to a voltage, and superimposes the voltage on the reference signal (RAMP); a comparator (14) in which the reference signal (RAMP) and the pixel signal (VSL) are inputted to a comparator body (42) via an input capacity connected to a terminal of one of a differential pair, and which outputs an inverted signal according to gain setting and the pixel signal (VSL); a counter (18) that converts the inversion timing of the comparator (14) to a digital value; and a gain control unit (15) that, when gain control is performed on the comparator (14) by changing the input capacity and the inclination of the reference signal (RAMP), outputs a gain control signal based on the change amount of the input capacity.
More Like This:
Inventors:
MOUE TAKASHI (JP)
ETOU TAKESHI (JP)
ETOU TAKESHI (JP)
Application Number:
PCT/JP2019/035240
Publication Date:
March 19, 2020
Filing Date:
September 06, 2019
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H04N5/378; H03K5/08; H03M1/08; H03M1/56; H04N5/357
Domestic Patent References:
| WO2017159394A1 | 2017-09-21 | |||
| WO2017030007A1 | 2017-02-23 |
Foreign References:
| JP2013126015A | 2013-06-24 | |||
| JP2015233184A | 2015-12-24 |
Other References:
See also references of EP 3852359A4
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
Download PDF: