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    • 1. 发明申请
    • OPTICAL DISC DEVICE
    • 光盘设备
    • US20090213705A1
    • 2009-08-27
    • US11915261
    • 2005-05-23
    • Yoshimi IsoMitsuo HagiwaraMitsuyuki Kimura
    • Yoshimi IsoMitsuo HagiwaraMitsuyuki Kimura
    • G11B7/00
    • G11B7/0917G11B7/0037G11B7/0908G11B7/0912G11B7/0941G11B7/0943G11B23/40G11B2007/0016G11B2007/00727
    • The optical disc device has a circuit 4 which forms a focus error signal FER for focus servo control based on reflection light from an optical disc exposed to laser light. A data processing unit 2 can control by feedback a position to which an objective lens is moved by a focusing actuator 30 based on the focus error signal. In label printing, the data processing unit controls, by feedforward, a position to which the objective lens is moved by the focusing actuator based on control data for label printing. The operation resolution of the focusing actuator in feedforward control is made higher than that in feedback control. Thus, an intended position control accuracy is achieved in feedforward control. For instance, in feedforward control, the gain of the driver circuit 40 for the focusing actuator is switched to a smaller one in comparison to that in feedback control.
    • 光盘装置具有电路4,该电路4基于来自暴露于激光的光盘的反射光形成用于聚焦伺服控制的聚焦误差信号FER。 数据处理单元2可以通过反馈基于聚焦误差信号来控制由聚焦致动器30移动物镜的位置。 在标签打印中,数据处理单元基于用于标签打印的控制数据,通过前馈控制由聚焦致动器移动物镜的位置。 前馈控制中聚焦执行器的运行分辨率高于反馈控制。 因此,在前馈控制中实现了预期的位置控制精度。 例如,在前馈控制中,与反馈控制相比,用于聚焦致动器的驱动电路40的增益被切换到较小的一个。
    • 2. 发明授权
    • Optical disc device
    • 光盘设备
    • US08780680B2
    • 2014-07-15
    • US13173517
    • 2011-06-30
    • Yoshimi IsoMitsuo HagiwaraMitsuyuki Kimura
    • Yoshimi IsoMitsuo HagiwaraMitsuyuki Kimura
    • G11B7/00
    • G11B7/0917G11B7/0037G11B7/0908G11B7/0912G11B7/0941G11B7/0943G11B23/40G11B2007/0016G11B2007/00727
    • The optical disc device has a circuit which forms a focus error signal for focus servo control based on reflection light from an optical disc exposed to laser light. Also, the device has a data processing unit which can control by feedback a position to which an objective lens is moved by a focusing actuator based on a focus error signal. In label printing, the data processing unit controls, by feedforward, a position to which the objective lens is moved by the focusing actuator based on control data for label printing. The operation resolution of the focusing actuator in feedforward control is made higher than that in feedback control. Thus, an intended position control accuracy is achieved in feedforward control. For instance, in feedforward control, the gain of the driver circuit for the focusing actuator is switched to a smaller one in comparison to that in feedback control.
    • 光盘装置具有基于来自暴露于激光的光盘的反射光形成用于聚焦伺服控制的聚焦误差信号的电路。 此外,该装置具有数据处理单元,该数据处理单元可以通过反馈控制基于聚焦误差信号的聚焦致动器移动物镜的位置。 在标签打印中,数据处理单元基于用于标签打印的控制数据,通过前馈控制由聚焦致动器移动物镜的位置。 前馈控制中聚焦执行器的运行分辨率高于反馈控制。 因此,在前馈控制中实现了预期的位置控制精度。 例如,在前馈控制中,与反馈控制相比,用于聚焦致动器的驱动电路的增益被切换到较小的一个。
    • 3. 发明授权
    • Optical disc device
    • 光盘设备
    • US07995431B2
    • 2011-08-09
    • US11915261
    • 2005-05-23
    • Yoshimi IsoMitsuo HagiwaraMitsuyuki Kimura
    • Yoshimi IsoMitsuo HagiwaraMitsuyuki Kimura
    • G11B7/00
    • G11B7/0917G11B7/0037G11B7/0908G11B7/0912G11B7/0941G11B7/0943G11B23/40G11B2007/0016G11B2007/00727
    • The optical disc device has a circuit 4 which forms a focus error signal FER for focus servo control based on reflection light from an optical disc exposed to laser light. A data processing unit 2 can control by feedback a position to which an objective lens is moved by a focusing actuator 30 based on the focus error signal. In label printing, the data processing unit controls, by feedforward, a position to which the objective lens is moved by the focusing actuator based on control data for label printing. The operation resolution of the focusing actuator in feedforward control is made higher than that in feedback control. Thus, an intended position control accuracy is achieved in feedforward control. For instance, in feedforward control, the gain of the driver circuit 40 for the focusing actuator is switched to a smaller one in comparison to that in feedback control.
    • 光盘装置具有电路4,该电路4基于来自暴露于激光的光盘的反射光形成用于聚焦伺服控制的聚焦误差信号FER。 数据处理单元2可以通过反馈基于聚焦误差信号来控制由聚焦致动器30移动物镜的位置。 在标签打印中,数据处理单元基于用于标签打印的控制数据,通过前馈控制由聚焦致动器移动物镜的位置。 前馈控制中聚焦执行器的运行分辨率高于反馈控制。 因此,在前馈控制中实现了预期的位置控制精度。 例如,在前馈控制中,与反馈控制相比,用于聚焦致动器的驱动电路40的增益被切换到较小的一个。
    • 10. 发明授权
    • Viewfinder mask orienting device in a camera
    • 取景器面罩定向装置在相机中
    • US4251149A
    • 1981-02-17
    • US081136
    • 1979-10-02
    • Mitsuyuki Kimura
    • Mitsuyuki Kimura
    • G03B13/10
    • G03B13/10
    • In the viewfinder optical system of a reflex camera with a film holder which is rotatable to change the orientation of the oblong image on its film, a viewfinder mask orienting device supporting a square focusing screen has two pairs of rotatable masking blades, the two blades of each pair being integrally joined in Vee shape, which are actuated by the rotation of the film holder to operate cooperatively to alternately mask edge parts of the two pairs of opposed sides of the focusing screen thereby to form an oblong viewfinder image and change the orientation of this image to conform to that of the image on the film.
    • 在具有可旋转以改变其膜上的长方形图像的取向的胶片保持器的反光照相机的取景器光学系统中,支撑正方形聚焦屏的取景器掩模定向装置具有两对可旋转的遮蔽刀片, 每一对以V形整体连接,其由胶片保持器的旋转致动,以协同操作以交替地掩蔽聚焦屏的两对相对侧的边缘部分,从而形成长方形取景器图像并改变其方向 这个图像符合电影中的图像。