Imaging apparatus and imaging system

    公开(公告)号:US09807333B2

    公开(公告)日:2017-10-31

    申请号:US15140236

    申请日:2016-04-27

    IPC分类号: H04N5/378

    CPC分类号: H04N5/378

    摘要: An imaging apparatus according to an exemplary embodiment includes pixels, reading circuits, first current sources each including a first transistor, second current sources each including a second transistor, a first control unit configured to control outputting a current from the first transistor to the reading circuit, and a second control unit configured to perform selectively supplying a voltage to a gate of the second transistor and holding a voltage at the gate of the second transistor. When the second control unit supplies the voltage to the gate of the second transistor, the second transistor supplies the reference current and the first control unit stops outputting the current from the first transistor to the reading circuit. When the second control unit holds the voltage at the gate of the second transistor, the first control unit causes the first transistor to output the current from the first transistor to the reading circuit.

    IMAGING APPARATUS AND IMAGING SYSTEM
    9.
    发明申请
    IMAGING APPARATUS AND IMAGING SYSTEM 有权
    成像装置和成像系统

    公开(公告)号:US20160329371A1

    公开(公告)日:2016-11-10

    申请号:US15140236

    申请日:2016-04-27

    IPC分类号: H01L27/146 H04N5/378

    CPC分类号: H04N5/378

    摘要: An imaging apparatus according to an exemplary embodiment includes pixels, reading circuits, first current sources each including a first transistor, second current sources each including a second transistor, a first control unit configured to control outputting a current from the first transistor to the reading circuit, and a second control unit configured to perform selectively supplying a voltage to a gate of the second transistor and holding a voltage at the gate of the second transistor. When the second control unit supplies the voltage to the gate of the second transistor, the second transistor supplies the reference current and the first control unit stops outputting the current from the first transistor to the reading circuit. When the second control unit holds the voltage at the gate of the second transistor, the first control unit causes the first transistor to output the current from the first transistor to the reading circuit.

    摘要翻译: 根据示例性实施例的成像装置包括像素,读取电路,每个包括第一晶体管的第一电流源,每个包括第二晶体管的第二电流源,被配置为控制从第一晶体管输出到读取电路的电流的第一控制单元 以及第二控制单元,被配置为选择性地向第二晶体管的栅极提供电压,并且在第二晶体管的栅极处保持电压。 当第二控制单元将电压提供给第二晶体管的栅极时,第二晶体管提供参考电流,第一控制单元停止将电流从第一晶体管输出到读取电路。 当第二控制单元保持第二晶体管的栅极处的电压时,第一控制单元使第一晶体管将电流从第一晶体管输出到读取电路。