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    INFORMATION REPRODUCING APPARATUS, SERVO ADJUSTING METHOD, AND THE LIKE
    8.
    发明申请
    INFORMATION REPRODUCING APPARATUS, SERVO ADJUSTING METHOD, AND THE LIKE 审中-公开
    信息再现装置，伺服调整方法等

    公开(公告)号：US20100172222A1

    公开(公告)日：2010-07-08

    申请号：US12160730

    申请日：2007-01-10

    申请人： Yoshihiro Hashizuka ,  Yoshimichi Nishio ,  Hiroyuki Kobayashi ,  Hiroki Goto ,  Hideaki Tsurumi ,  Takaaki Ujiie ,  Hiroshi Someya ,  Manabu Shimodaira ,  Hidetaka Urabe

    发明人： Yoshihiro Hashizuka ,  Yoshimichi Nishio ,  Hiroyuki Kobayashi ,  Hiroki Goto ,  Hideaki Tsurumi ,  Takaaki Ujiie ,  Hiroshi Someya ,  Manabu Shimodaira ,  Hidetaka Urabe

    IPC分类号： G11B7/00

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

    摘要： The present invention provides an information processing apparatus, a servo adjustment method, and the like realizing reduced time required for servo adjustment.An information reproducing apparatus according to the present invention is for reproducing information recorded on a recording medium having a plurality of recording layers.The apparatus includes: signal level measuring means for measuring a signal level of each of recording layers; and servo adjusting means for performing servo adjustment on at least one of the recording layers, storing a servo adjustment value in the servo adjustment, and in the case where the recorded information is reproduced from the recording layers, performing servo adjustment on the recording layers so as to become to the servo adjustment value.When a level ratio of signal levels of at least two recording layers in the measured signal levels of the recording layers lies in a threshold range, the servo adjusting means performs the servo adjustment on one of the recording layers, stores the servo adjustment value in the servo adjustment, and in the case where the recorded information is reproduced from the other recording layer, performs the servo adjustment on the other recording layer so as to become to the servo adjustment value for one recording layer.

    摘要翻译： 本发明提供一种实现伺服调整所需时间缩短的信息处理装置，伺服调整方法等。 根据本发明的信息再现装置用于再现记录在具有多个记录层的记录介质上的信息。 该装置包括：用于测量每个记录层的信号电平的信号电平测量装置; 以及用于在至少一个记录层上执行伺服调整的伺服调整装置，在伺服调整中存储伺服调整值，并且在记录层再现记录信息的情况下，对记录层进行伺服调整， 成为伺服调整值。 当记录层的测量信号电平中的至少两个记录层的信号电平的电平比在阈值范围内时，伺服调整装置在其中一个记录层上执行伺服调节，将伺服调整值存储在 伺服调整，并且在从另一个记录层再现记录信息的情况下，在另一个记录层上进行伺服调整，使其成为一个记录层的伺服调整值。

    Focusing controller for focus jump control between recording layers of multilayer disk
    9.
    发明授权
    Focusing controller for focus jump control between recording layers of multilayer disk 失效
    聚焦控制器用于多层盘记录层之间的焦点跳转控制

    公开(公告)号：US06777657B2

    公开(公告)日：2004-08-17

    申请号：US10114027

    申请日：2002-04-03

    申请人： Yoshimichi Nishio ,  Yoshihiro Hashizuka ,  Kazunori Matsuo ,  Takeshi Sato ,  Morio Nozaki ,  Hitoshi Yamazaki ,  Kazuhiko Oogami ,  Yoshitaka Makino ,  Hideaki Yoshimura

    发明人： Yoshimichi Nishio ,  Yoshihiro Hashizuka ,  Kazunori Matsuo ,  Takeshi Sato ,  Morio Nozaki ,  Hitoshi Yamazaki ,  Kazuhiko Oogami ,  Yoshitaka Makino ,  Hideaki Yoshimura

    IPC分类号： G11B709

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

    摘要： A focusing controller executes an appropriate focus jump even in a multilayer disk having layers of characteristics greatly different from each other. The focusing controller has an optical pickup including an objective lens for converging the light beam and a detector for receiving reflected light from the multilayer recording medium; an error signal generator for generating a focus error signal of the irradiated light beam from a detecting signal of the detector; an actuator for operating the objective lens; and a controller for controlling a focusing position of the light beam by operating the actuator based on the focus error signal. The controller calculates intensities of the reflected lights of two layers based on the detecting signal of the detector, and thus controls the timings of acceleration and deceleration signals of a focus jump between these two layers.

    摘要翻译： 即使在具有彼此极大不同的特征层的多层盘中，聚焦控制器执行适当的聚焦跳跃。 聚焦控制器具有包括用于会聚光束的物镜的光学拾取器和用于接收来自多层记录介质的反射光的检测器; 误差信号发生器，用于根据检测器的检测信号产生照射光束的聚焦误差信号; 用于操作物镜的致动器; 以及控制器，用于通过基于聚焦误差信号操作致动器来控制光束的聚焦位置。 控制器基于检测器的检测信号计算两层反射光的强度，从而控制这两层之间的聚焦跳跃的加速和减速信号的定时。

    Optical-recording-medium reading apparatus
    10.
    发明申请
    Optical-recording-medium reading apparatus 审中-公开
    光记录介质读取装置

    公开(公告)号：US20050213459A1

    公开(公告)日：2005-09-29

    申请号：US11080667

    申请日：2005-03-16

    申请人： Yoshimichi Nishio ,  Yasuhisa Okamoto ,  Takehiro Takada ,  Yoshihiro Hashizuka ,  Hiroki Goto

    发明人： Yoshimichi Nishio ,  Yasuhisa Okamoto ,  Takehiro Takada ,  Yoshihiro Hashizuka ,  Hiroki Goto

    IPC分类号： G11B7/005 ,  G11B5/09 ,  G11B7/095

    CPC分类号： G11B7/0953 ,  G11B7/005

    摘要： An imaging unit captures an image of an entire recording surface of an optical recording medium. An image storing unit stores the image captured as one image of a recording surface image. A track-information calculating unit calculates a virtual center point and an actual track pitch of the optical recording medium. An image-analysis-path generating unit matches a center of an image analysis path with the virtual center point of the recording surface image stored. An image analyzing unit performs an image analysis of the pits sequentially from an innermost periphery according to the image analysis path, and converts the pit arrangement information of the track into a digital signal, and stores the digital signal converted.

    摘要翻译： 成像单元捕获光记录介质的整个记录​​表面的图像。 图像存储单元将拍摄的图像存储为记录表面图像的一个图像。 轨道信息计算单元计算光学记录介质的虚拟中心点和实际轨道间距。 图像分析路径生成单元将图像分析路径的中心与存储的记录表面图像的虚拟中心点相匹配。 图像分析单元根据图像分析路径从最内周期依次执行凹坑的图像分析，并将轨道的凹坑布置信息转换为数字信号，并存储转换后的数字信号。