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    • 10. 发明授权
    • Camera device and monitor system
    • 相机设备和监控系统
    • US07872099B2
    • 2011-01-18
    • US11501845
    • 2006-08-10
    • Tatsuhito SagawaMakoto KikuchiNaoki Fujiwara
    • Tatsuhito SagawaMakoto KikuchiNaoki Fujiwara
    • G03B7/00H04N5/235
    • H04N5/23293H04N5/2352
    • A camera device includes: an iris unit for varying exposure; a shutter control unit for varying a shutter speed of an imaging element; and a control unit for controlling the signal processing unit and the entire device. The camera device further includes: an exposure target calculation unit for calculating a control value used for controlling the iris unit or the shutter control unit so that an exposure amount will be a target value based on information on a signal level from a signal processing unit; and a malfunction judgment unit for determining a malfunction in the device based on information on the control value obtained by the exposure target calculation unit and the signal level from the signal processing unit.
    • 相机装置包括:用于变化曝光的光圈单元; 用于改变成像元件的快门速度的快门控制单元; 以及用于控制信号处理单元和整个设备的控制单元。 相机装置还包括:曝光对象计算单元,用于计算用于控制光圈单元或快门控制单元的控制值,使得曝光量将基于来自信号处理单元的信号电平的信息为目标值; 以及故障判断单元,用于基于关于由所述曝光对象计算单元获得的控制值和来自所述信号处理单元的信号电平的信息来确定所述设备中的故障。