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    • 2. 发明授权
    • Focus detection apparatus and focus detection method
    • 焦点检测装置和焦点检测方法
    • US08111981B2
    • 2012-02-07
    • US12397940
    • 2009-03-04
    • Takashi IchimiyaMasanori Ohtsuka
    • Takashi IchimiyaMasanori Ohtsuka
    • G03B3/00G03B13/00
    • G03B13/36G02B7/34
    • This invention includes accumulation units (102a, 102b) which accumulate signals obtained by sensing units (111a, 111b), an area determination unit (103, 100) which sets the size of an area of a sensing unit to be segmented into a plurality of areas on the basis of the information of a lens to be focus-detected, accumulation control units (104a-104c, 105) which control, for each of the areas, accumulation of signals obtained in a plurality of areas by the accumulation units, and a defocus detection unit (100) which detects defocus states in the respective areas from accumulated signals from a plurality of areas.
    • 本发明包括累积由感测单元(111a,111b)获得的信号的累积单元(102a,102b),区域确定单元(103,100),其将要分割的感测单元的面积的大小设置为多个 基于要聚焦检测的透镜的信息的区域,累积控制单元(104a-104c,105),其针对每个区域控制由累积单元在多个区域中获得的信号的累积;以及 散焦检测单元(100),其从多个区域的累积信号中检测各个区域中的散焦状态。
    • 6. 发明授权
    • Photocoupler driving system and camera using system
    • 光电耦合器驱动系统和相机使用系统
    • US06731871B2
    • 2004-05-04
    • US10161858
    • 2002-06-04
    • Kazunari KitaniMasanori OhtsukaTakashi Kosaka
    • Kazunari KitaniMasanori OhtsukaTakashi Kosaka
    • G03B726
    • G03B7/26
    • A camera includes a first power supply output circuit which outputs a first stabilized power supply voltage, a second power supply output circuit which outputs a second stabilized power supply voltage lower than the first power supply voltage, a photocoupler which has a light emitting element and a light receiving element, a detecting circuit which detects an analog signal output from the light receiving element and converts the analog signal to a digital signal, and a processing circuit which performs processing based on the digital signal. The first power supply voltage feeds into the light emitting element as an operating voltage thereof. The second power supply voltage feeds into the light receiving element and feeds into the processing circuit as an operating voltage thereof. The camera allows stable operations of the processing circuit with minuter elements and the light emitting element.
    • 相机包括输出第一稳定电源电压的第一电源输出电路,输出低于第一电源电压的第二稳定电源电压的第二电源输出电路,具有发光元件的光电耦合器和 光接收元件,检测从光接收元件输出的模拟信号并将模拟信号转换为数字信号的检测电路,以及基于数字信号进行处理的处理电路。 第一电源电压作为其工作电压馈送到发光元件。 第二电源电压馈送到光接收元件并作为其操作电压馈入处理电路。 相机允许处理电路与微型元件和发光元件的稳定操作。