Solid-state image pickup apparatus, control circuit, and control method of solid-state image pickup device
    1.
    发明申请
    Solid-state image pickup apparatus, control circuit, and control method of solid-state image pickup device 审中-公开
    固态摄像装置,控制电路以及固态摄像装置的控制方法

    公开(公告)号:US20060055795A1

    公开(公告)日:2006-03-16

    申请号:US11225484

    申请日:2005-09-13

    IPC分类号: H04N5/235

    CPC分类号: H04N5/2352

    摘要: In a solid-state image pickup apparatus, a level adjustment control circuit sequentially executes a first level adjustment performing a level adjustment of a pickup image signal based on an electronic iris control signal for changing an exposure period in a solid-state image pickup device according to a luminance level of the pickup image signal, a second level adjustment performing the level adjustment of the pickup image signal based on a gain control signal for controlling a gain of a gain variable amplifier amplifying the luminance level of the pickup image signal, and a third level adjustment based on the electronic iris control signal to lengthen the exposure period to be longer than that of the first level adjustment in a second luminance level which is lower than a first luminance level of the pickup image signal and does not continue to the first luminance level.

    摘要翻译: 在固态图像拾取装置中,电平调节控制电路依次执行基于用于改变固态图像拾取装置中的曝光周期的电子光圈控制信号执行拍摄图像信号的电平调整的第一电平调节, 基于用于控制放大拍摄图像信号的亮度级的增益可变放大器的增益的增益控制信号执行拍摄图像信号的电平调整的第二电平调整;以及 基于电子光圈控制信号进行第三级调整,以在比拾取图像信号的第一亮度级别低的第二亮度级别将曝光期间延长到比第一电平调整的曝光时间长的延迟,并且不会继续到第一电平 亮度级别。