Title:
IMAGE CAPTURING DEVICE, AND GAIN RATIO ACQUISITION METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2021/187333
Kind Code:
A1
Abstract:
The objective of the present invention is to shorten the time required for calibration between gains in a level adjusting circuit. The level adjusting circuit performs level adjustment of analog signals output to vertical signal lines corresponding to each column of a pixel array, using either of mutually different first and second gains. An analog to digital converter converts the level-adjusted analog signals to digital signals. A test signal generating unit generates mutually different first and second test signals. A gain ratio acquiring unit supplies the first test signal to one of the vertical signal lines, and simultaneously supplies the second test signal to another of the other vertical signal lines, and acquires the gain ratio between the first gain and the second gain of the level adjusting circuit.
Inventors:
TABATA HIDENORI (JP)
Application Number:
PCT/JP2021/009900
Publication Date:
September 23, 2021
Filing Date:
March 11, 2021
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H04N5/378
Foreign References:
| JP2005175517A | 2005-06-30 | |||
| JP2008141609A | 2008-06-19 | |||
| JP2009284181A | 2009-12-03 |
Attorney, Agent or Firm:
MARUSHIMA, Toshikazu (JP)
Download PDF:
Previous Patent: ROTATING SHAFT STRUCTURE PROVIDED WITH FORCE SENSOR, AND ROBOT
Next Patent: ABNORMALITY DETERMINATION DEVICE
Next Patent: ABNORMALITY DETERMINATION DEVICE