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    • 4. 发明申请
    • OPTICAL DISC DRIVE DEVICE AND TILT CORRECTION DEVICE
    • 光盘驱动装置和倾斜校正装置
    • US20090161504A1
    • 2009-06-25
    • US12337033
    • 2008-12-17
    • Takashi InoueHiroshi ShimadaAkira NakaoYasuhiro Hayashi
    • Takashi InoueHiroshi ShimadaAkira NakaoYasuhiro Hayashi
    • G11B7/00
    • G11B7/0941G11B7/0901G11B7/0956
    • An optical disc drive device has an FE signal generator which generates a focus error signal, a TE signal generator which generates a tracking error signal, a return beam detector which detects a return beam reflected by an optical disc after irradiated by an optical pickup to generate a return beam level signal, a return beam gain setting part which sets amplitude adjustment amount of the return beam level signal so that a signal level of the return beam level signal generated by the return beam detector coincides with a predetermined reference level, an FE gain setting part which sets amplitude adjustment amount of the focus error signal in accordance with the signal level of the return beam level signal adjusted by the return beam gain setting part so that a signal amplitude of the focus error signal is constant, and a TE gain setting part which sets amplitude adjustment amount of the tracking error signal in accordance with the signal level of the return beam level signal adjusted by the return beam gain adjustment part so that a signal amplitude of the tracking error signal is constant.
    • 光盘驱动装置具有产生聚焦误差信号的FE信号发生器,产生跟踪误差信号的TE信号发生器,检测由光拾取器照射后由光盘反射的返回光束的返回光束检测器, 返回光束电平信号,返回光束增益设置部分,其设置返回光束电平信号的幅度调整量,使得由返回光束检测器产生的返回光束电平信号的信号电平与预定参考电平相符,FE增益 设置部分,其根据由返回光束增益设置部分调整的返回光束电平信号的信号电平设置聚焦误差信号的幅度调整量,使得聚焦误差信号的信号幅度恒定,并且TE增益设置 根据调整的返回光束电平信号的信号电平设定跟踪误差信号的幅度调整量的部分 通过返回光束增益调整部分,使得跟踪误差信号的信号幅度恒定。
    • 9. 发明授权
    • Apparatus and method for folding sheet-form material
    • 用于折叠片材的装置和方法
    • US5300168A
    • 1994-04-05
    • US978208
    • 1992-11-19
    • Akira NakaoToyofusa EndoTakeshi Ikeda
    • Akira NakaoToyofusa EndoTakeshi Ikeda
    • B65H45/12B32B31/00B44C1/22C23F1/00
    • B65H45/12Y10T156/1015Y10T156/1026Y10T156/1049
    • Apparatus for folding a sheet-form material in a zigzag fashion. Lower and upper guide members are provided in opposed relation in a frame. Sheet-form material is placed under tension between the upper and lower guide members. Plural lower up-and-down movable members are arranged at regular intervals on the lower guide member. Plural upper up-and-down movable members are arranged on the upper guide member at regular intervals and at positions alternate with the lower up-and-down movable members. Fold imparting members are arranged respectively at upper ends of lower up-and-down movable members and at lower ends of upper up-and-down movable members. Upper and lower up-and-down movable members are driven to move toward each other, sequentially from one end side of the upper and lower guide members and toward the other end side, to give folds to the sheet-form material.
    • 用于以锯齿形折叠片状材料的装置。 下引导构件和上引导构件在框架中以相对的关系提供。 片状材料被放置在上部和下部引导构件之间的张力下。 多个较低的上下可动构件以规则的间隔布置在下引导构件上。 多个上部上下可动构件以规则的间隔布置在上引导构件上,并且与下部上下可动构件交替的位置。 折叠赋予构件分别布置在上下可动构件的上端和上上下可动构件的下端。 驱动上下上下可动构件,从上下导向构件的一端侧向另一端侧依次移动,向片状材料折叠。