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    • 5. 发明授权
    • Beam position control system of an optical disk unit
    • 光盘单元的光束位置控制系统
    • US5499223A
    • 1996-03-12
    • US456388
    • 1995-06-01
    • Shigenori YanagiMakoto TakayanagiKikuji Katoh
    • Shigenori YanagiMakoto TakayanagiKikuji Katoh
    • G11B7/085G11B7/09G11B7/00
    • G11B7/094G11B7/08564G11B7/0901
    • This invention enables one, or both, or none of position servo control and position lock control of a galvanomirror, to control a read beam to an optimum position under any of on-track state, seek state, position setting state after the completion of a seek operation, and positional deviation existing state between a write beam and the read beam. The invention locks the position of the galvanomirror when a unit is energized or retried, reads a galvanomirror position signal provided at this moment, finds an offset signal for zeroing the galvanomirror position signal, and adds the offset to the position locked galvanomirror during a seek operation with the write beam, thereby removing an offset of the galvanomirror position signal. The invention determines that the galvanomirror has been abnormally deflected due to a malfunction of a tracking control servo system, upon detecting an abnormality that a tracking error signal used for the tracking control of the read beam exceeds a threshold value and an abnormality that a galvanomirror position signal used for locking the galvanomirror at a central position exceeds a threshold value. The invention removes an offset by adding the galvanomirror position signal to the tracking error signal of the read beam. It is possible to add a lens position signal as well to remove the offset. (FIG. 1B)
    • 本发明能够实现电流镜的位置伺服控制和位置锁定控制中的一个或两个,也可以不使用任何一个,或者在电子镜的位置锁定控制之后,在读取光束完成之后的任何轨道状态,寻道状态,位置设置状态下将读取光束控制到最佳位置 寻找操作和写入光束与读取光束之间的位置偏差存在状态。 本发明在单元通电或重试时锁定电镜镜的位置,读取此时提供的电流镜位置信号,找到用于使电流镜位置信号调零的偏移信号,并且在寻道操作期间将偏移量加到位置锁定电镜上 与写入光束,从而消除电流计镜位置信号的偏移。 本发明在检测到用于跟踪控制的读取光束的跟踪误差信号超过阈值的异常以及电流计镜位置的异常时,确定由于跟踪控制伺服系统的故障而使电流计镜异常偏转 用于将电流镜在中心位置锁定的信号超过阈值。 本发明通过将电流镜位置信号添加到读取光束的跟踪误差信号来消除偏移。 可以添加镜头位置信号以移除偏移。 (图。
    • 6. 发明授权
    • Static eliminator
    • 静电消除器
    • US07248454B2
    • 2007-07-24
    • US10764027
    • 2004-01-23
    • Makoto Takayanagi
    • Makoto Takayanagi
    • H02H1/00
    • H01T23/00
    • There is provided a static eliminator which comprises an ion generating portion in the form of tape. There is also provided a self-discharged static eliminator comprising an conductor provided with discharge whiskers in which the conductor is applied with a predetermined voltage. There is also provided a DC type of self-discharged fiber-like static eliminator which comprises plus fiber electrodes applied with plus voltage, minus fiber electrodes applied with minus voltage, a support disposed between the plus and minus electrodes for supporting the plus and minus electrodes and provided with insulation reserving member for preventing the spark discharge or short due to the access of the plus and minus electrodes.
    • 提供了一种静电消除器,其包括带状离子产生部分。 还提供了一种自放电静电消除器,其包括具有放电晶须的导体,其中导体被施加预定电压。 还提供了一种DC型自放电纤维状静电消除器,其包括施加正电压的正光纤电极,负电压施加的负电极的负电极,负电极之间的支撑负电极 并且设置有用于防止火花放电或由于正负电极的进入引起的短路的绝缘保留构件。
    • 10. 发明申请
    • FLOTAGE TRAPPING DEVICE USING ELECTROSTATIC FIELD
    • 使用静电场的浮标捕捉装置
    • US20080250929A1
    • 2008-10-16
    • US12050013
    • 2008-03-17
    • Makoto TakayanagiAkitoshi TakagiYasunori Imagawa
    • Makoto TakayanagiAkitoshi TakagiYasunori Imagawa
    • B03C3/68B03C3/02B03C3/38
    • B03C3/88B03C3/74B03C2201/28
    • There is provided a flotage trapping device using electrostatic field. The flotage trapping device comprises a body including a power source portion and a boosting portion for boosting, fed from the power source portion, and a collector portion including a collector to which the plus and/or minus high voltage obtained from the boosting portion is applied. The collector portion is formed as a collector cassette by unitizing the collector portion in the form of cassette. A fixing mechanism is provided between the body and the collector cassette for connecting and disconnecting the body and the collector cassette through one-touch operation. The electric connecters for high voltage is provided between the body and the collector cassette for electrically connecting and disconnecting the body and the collector cassette through one-touch operation. As a result the collector cassette is detachably mounted on the body.
    • 提供了使用静电场的浮标捕获装置。 浮子捕获装置包括主体,其包括电源部分和用于从电源部分馈送的用于升压的升压部分和包括集电器的集电器部分,其中施加从升压部分获得的正和高电压 。 收集器部分通过将收集器部分以盒形的形式组合而形成为收集器盒。 在本体和收集器盒之间提供了一种固定机构,用于通过一触式操作来连接和断开主体和收集器盒。 用于高电压的电连接器设置在主体和收集器盒之间,用于通过一触式操作来电连接和断开主体和收集器盒。 因此,收集器盒可拆卸地安装在主体上。