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    • 8. 发明授权
    • Automatic focusing apparatus
    • 自动对焦装置
    • US5512973A
    • 1996-04-30
    • US443353
    • 1995-05-17
    • Yosuke KusakaMasaru MuramatsuKen UtagawaShozo Yamano
    • Yosuke KusakaMasaru MuramatsuKen UtagawaShozo Yamano
    • G02B7/36G03B13/36
    • G02B7/36
    • An automatic focusing apparatus repetitively detects a defocus amount of a photographing lens, discriminates whether or not an object is moving, and calculates a pursuit correction amount for a moving object on the basis of present and previous defocus amounts. When a non-moving object is discriminated, a drive amount of the lens is calculated on the basis of the present defocus amount, and when a moving object is discriminated the drive amount is calculated on the basis of a pursuit drive amount as a stun of the present defocus amount and the pursuit correction amount. A pursuit enable/disable determining device determines whether the drive amount is calculated on the basis of the discrimination result or on the basis of the present defocus amount. When a drive direction of the lens is reversed, the pursuit enable/disable determining device causes calculation of the drive amount of the photographing lens on the basis of the present defocus amount for driving the lens in a predetermined number of drive operations after the reversal.
    • 自动对焦装置重复地检测拍摄镜头的散焦量,判别物体是否正在移动,并且基于当前和以前的散焦量来计算移动物体的追踪校正量。 当鉴别出不移动物体时,根据目前的散焦量来计算透镜的驱动量,并且当识别出移动物体时,根据作为眩晕的追求驱动量计算驱动量 目前的散焦量和追踪修正量。 追踪启用/禁止确定装置基于判别结果或基于当前的散焦量确定驱动量是否被计算。 当镜头的驱动方向反转时,追求使能/禁止判定装置根据用于在反转之后的预定数量的驱动操作中驱动镜头的当前散焦量来计算拍摄镜头的驱动量。
    • 9. 发明授权
    • Automatic focusing apparatus
    • 自动对焦装置
    • US5504551A
    • 1996-04-02
    • US442872
    • 1995-05-17
    • Yosuke KusakaMasaru MuramatsuKen UtagawaShozo Yamano
    • Yosuke KusakaMasaru MuramatsuKen UtagawaShozo Yamano
    • G02B7/36G03B13/36
    • G02B7/36
    • An automatic focusing apparatus repetitively detects a defocus amount of a photographing lens, discriminates whether or not an object is moving, and calculates a pursuit correction amount for a moving object on the basis of present and previous defocus amounts. When a non-moving object is discriminated, a drive amount of the lens is calculated on the basis of the present defocus amount, and when a moving object is discriminated the drive amount is calculated on the basis of a pursuit drive amount as a sum of the present defocus amount and the pursuit correction amount. A pursuit enable/disable determining device determines whether the drive amount is calculated on the basis of the discrimination result or on the basis of the present defocus amount. When a drive direction of the lens is reversed, the pursuit enable/disable determining device causes calculation of the drive amount of the photographing lens on the basis of the present defocus amount for driving the lens in a predetermined number of drive operations after the reversal.
    • 自动对焦装置重复地检测拍摄镜头的散焦量,判别物体是否正在移动,并且基于当前和以前的散焦量来计算移动物体的追踪校正量。 当鉴别出不移动物体时,根据目前的散焦量来计算透镜的驱动量,并且当识别出移动物体时,根据追踪驱动量计算驱动量作为总和 目前的散焦量和追踪修正量。 追踪启用/禁止确定装置基于判别结果或基于当前的散焦量确定驱动量是否被计算。 当镜头的驱动方向反转时,追求使能/禁止判定装置根据用于在反转之后的预定数量的驱动操作中驱动镜头的当前散焦量来计算拍摄镜头的驱动量。