| 发明名称 |
IMAGING APPARATUS AND IMAGING SYSTEM |
| 摘要 |
An imaging apparatus includes a pixel configured to generate a signal in accordance with an incident light by a photoelectric conversion; a differential amplifier including a first input terminal to which a voltage based on the signal from the pixel is input, and a second input terminal to which a reference voltage is input; a current supply unit configured to supply a bias current to the differential amplifier; and a comparing unit configured to compare the voltage of the first input terminal of the differential amplifier with a threshold voltage, and configured to output a control signal based on a comparison result to the current supply unit, and the current supply unit changes a magnitude of the bias current supplied to the differential amplifier in accordance with the control signal input from the comparing unit. |
| 申请公布号 |
US2017048475(A1) |
申请公布日期 |
2017.02.16 |
| 申请号 |
US201615217526 |
申请日期 |
2016.07.22 |
| 申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
Sakuragi Takamasa |
| 分类号 |
H04N5/3745;H04N5/369;H04N5/374;H01L27/146;H04N5/376 |
主分类号 |
H04N5/3745 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An imaging apparatus comprising:
a pixel configured to generate a signal in accordance with an incident light by a photoelectric conversion; a differential amplifier including a first input terminal to which a voltage based on the signal from the pixel is input, and a second input terminal to which a reference voltage is input; a current supply unit configured to supply a bias current to the differential amplifier; and a comparing unit configured to compare the voltage of the first input terminal of the differential amplifier with a threshold voltage, and configured to output a control signal based on a comparison result to the current supply unit, wherein the current supply unit changes a magnitude of the bias current supplied to the differential amplifier in accordance with the control signal input from the comparing unit. |
| 地址 |
Tokyo JP |
