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57 条记录 (耗时 0.038 秒)

    Focus control apparatus for multilayer optical recording medium
    6.
    发明授权
    Focus control apparatus for multilayer optical recording medium 失效
    用于多层光记录介质的聚焦控制装置

    公开(公告)号：US06147942A

    公开(公告)日：2000-11-14

    申请号：US112004

    申请日：1998-07-08

    申请人： Hiroyuki Abe ,  Takeshi Sato ,  Kazushige Kawana ,  Hideaki Watarihana ,  Shinichi Naohara ,  Motoi Kimura ,  Yuichi Kimikawa ,  Masakazu Takahashi

    发明人： Hiroyuki Abe ,  Takeshi Sato ,  Kazushige Kawana ,  Hideaki Watarihana ,  Shinichi Naohara ,  Motoi Kimura ,  Yuichi Kimikawa ,  Masakazu Takahashi

    IPC分类号： G11B7/00 ,  G11B7/085 ,  G11B7/09

    CPC分类号： G11B7/08511 ,  G11B2007/0013 ,  G11B7/08529 ,  G11B7/0945

    摘要： A focus control apparatus for a multilayer optical recording medium which performs an appropriate focus jump on a multilayer optical recording medium. This focus control apparatus implements such focus jump control as to temporarily release a focus servo on one layer of a loaded multilayer optical recording medium, shift the focus position of read light on another target layer and then restart the focus servo on the another target layer, detects an ambient temperature, sets a drive signal condition according to the temperature detection output, and moves the focus position of the read light under the set drive signal condition. Specifically, this apparatus generates an acceleration signal to start moving the focus position of read light and a deceleration signal to decelerate movement of the focus position of the read light, as drive signals for a focus actuator in order to execute a focus jump operation, detects an ambient temperature of the focus actuator, and sets signal conditions for the acceleration signal and the deceleration signal according to the detected temperature.

    摘要翻译： 一种用于在多层光学记录介质上执行适当的聚焦跳跃的多层光学记录介质的聚焦控制装置。 该聚焦控制装置实现这样的聚焦跳跃控制，以暂时释放加载的多层光记录介质的一层上的聚焦伺服，将读取光的聚焦位置移动到另一目标层上，然后在另一目标层上重新启动聚焦伺服， 检测环境温度，根据温度检测输出设定驱动信号状态，并在设定的驱动信号条件下移动读取光的聚焦位置。 具体地，该装置产生加速度信号，开始移动读取光的聚焦位置和减速信号，以减慢读取光的焦点位置的移动，作为聚焦致动器的驱动信号，以执行聚焦跳跃操作，检测 聚焦致动器的环境温度，并且根据检测到的温度设置用于加速度信号和减速信号的信号条件。

    Apparatus and method for focus control of read light irradiated on a recording surface
    7.
    发明授权
    Apparatus and method for focus control of read light irradiated on a recording surface 失效
    用于对照射在记录表面上的读取光进行聚焦控制的装置和方法

    公开(公告)号：US6101157A

    公开(公告)日：2000-08-08

    申请号：US104930

    申请日：1998-06-26

    申请人： Alex Bradshaw ,  Kazushige Kawana ,  Masakazu Takahashi ,  Yuichi Kimikawa ,  Hitoshi Yamazaki ,  Hideaki Watarihana

    发明人： Alex Bradshaw ,  Kazushige Kawana ,  Masakazu Takahashi ,  Yuichi Kimikawa ,  Hitoshi Yamazaki ,  Hideaki Watarihana

    IPC分类号： G11B7/00 ,  G11B7/085 ,  G11B7/09

    CPC分类号： G11B7/08511 ,  G11B7/0945 ,  G11B2007/0013 ,  G11B7/094 ,  G11B7/0941

    摘要： Apparatus and method for focus control are devised to cope with a fluctuation of an optimum gain of a focus servo loop due to a difference between light reflectance of recording surfaces or the like and to allow an optimum focal position of read light to preferably trace a target recording surface. The focus control apparatus of the invention includes: reading device for generating a read signal of a recording medium 1; a focus servo loop for allowing an optimum converging position of the read light to trace the target recording surface in accordance with a focus error signal FE by using a focusing actuator to displace the optimum converging position of the read light in the optical axial direction; a level detecting unit of the read signal; a level detecting unit of an error signal FE; amplifiers and of a read signal RF and the error signal FE; and a control unit for driving the actuator so as to allow the optimum converging position of the read light to approach the recording surface in the set-up mode and for controlling gains of the amplifiers so that a detection level by the detecting unit in the set-up mode reaches a predetermined level and a detection level by a detecting unit reaches a predetermined level.

    摘要翻译： 用于聚焦控制的设备和方法被设计成能够应对由于记录表面等的光反射率之间的差异导致的聚焦伺服环路的最佳增益的波动，并且允许读取光的最佳焦点位置优选地追踪目标 记录表面。 本发明的聚焦控制装置包括：用于产生记录介质1的读取信号的读取装置; 聚焦伺服环，用于通过使用聚焦致动器来使读取光的最佳会聚位置根据聚焦误差信号FE跟踪目标记录表面，以使读取光在光轴方向上的最佳会聚位置移位; 读取信号的电平检测单元; 误差信号FE的电平检测单元; 放大器和读取信号RF和误差信号FE; 以及控制单元，用于驱动致动器，以便允许读取光的最佳会聚位置在建立模式下接近记录表面，并用于控制放大器的增益，使得检测单元在组中的检测水平 -up模式达到预定水平，并且检测单元的检测水平达到预定水平。

    Ball transfer unit and ball table
    9.
    发明授权
    Ball transfer unit and ball table 失效
    球传输单元和球台

    公开(公告)号：US07370746B2

    公开(公告)日：2008-05-13

    申请号：US10561568

    申请日：2004-07-01

    申请人： Kaoru Iguchi ,  Masakazu Takahashi

    发明人： Kaoru Iguchi ,  Masakazu Takahashi

    IPC分类号： B35G13/00

    CPC分类号： H01L21/67706 ,  B65G39/025 ,  F16C29/046 ,  F16C2326/58

    摘要： A ball transfer unit comprising a body in a seat face recessed in a semispherical shape is formed, a plurality of small balls rollingly in contact with the seat face of the body, a large ball rollingly in contact with the plurality of small balls, and a cover fitted to the body to hold the large ball and hold the small balls between the large ball and the seat face of the body. At least the body and the large ball are formed of either of PAI, PBI, PCTFE, PEEK, PEI, PI, PPs, melamine resin, aromatic polyamide resin, aluminum oxide, zirconium oxide, and silicon nitride.

    摘要翻译： 一种球形传送装置，其特征在于，具有以半球形凹陷的座面的主体，与所述主体的座面滚动地滚动的多个小球，与所述多个小球滚动地接触的大球， 盖子安装在身体上以握住大球，并将小球保持在大球和身体的座面之间。 至少身体和大球由PAI，PBI，PCTFE，PEEK，PEI，PI，PP，三聚氰胺树脂，芳族聚酰胺树脂，氧化铝，氧化锆和氮化硅中的任一种形成。

    Information processing system and method for timing adjustment
    10.
    发明授权
    Information processing system and method for timing adjustment 有权
    信息处理系统及时序调整方法

    公开(公告)号：US07337347B2

    公开(公告)日：2008-02-26

    申请号：US10998151

    申请日：2004-11-29

    申请人： Masahito Kubo ,  Takashi Chiba ,  Masakazu Takahashi ,  Shinichiro Nakamura ,  Kenji Takebe ,  Hirofumi Koseki

    发明人： Masahito Kubo ,  Takashi Chiba ,  Masakazu Takahashi ,  Shinichiro Nakamura ,  Kenji Takebe ,  Hirofumi Koseki

    IPC分类号： G06F1/04 ,  G06F1/00 ,  G06F1/12 ,  G06F5/06

    CPC分类号： G06F1/14

    摘要： An elapsed cycle number during the predetermined period of the inputted clock source is counted using the clock reference signal as a yardstick, a frequency of the clock source is computed based on an elapsed cycle number obtained by counting, control timing of various interfaces relating to the CPU is adjusted and an interruption generating interval in which interruption is generated regularly by the CPU so that adjustment of control timing of various interfaces and setting of a timer interruption interval during the OS operation in accordance with a frequency of the clock source without performing OS modification such as rebuilding and the like.

    摘要翻译： 使用时钟参考信号作为衡量标准，在输入的时钟源的预定时段期间的经过周期数被计数，基于通过计数获得的经过的周期数来计算时钟源的频率，控制与 CPU被调整，并且中断生成间隔由CPU定期产生中断，从而根据时钟源的频率在OS操作期间调整各种接口的控制定时并设置定时器中断间隔，而不进行OS修改 例如重建等。