公开(公告)号：US20110292475A1

公开(公告)日：2011-12-01

申请号：US13048601

申请日：2011-03-15

Applicant: Yasuhiro MATSUDA

Inventor： Yasuhiro MATSUDA

IPC: H04N1/04

CPC classification number: H04N1/1215 ,  H04N1/193 ,  H04N2201/0081 ,  H04N2201/0446

Abstract: An image reading apparatus includes an image reader unit that has a plurality of light receiving elements for reading an image on an original, and moves relative to a frame for applying a pressing force to a read-target surface of the original; and a driven roller that is rotatable, comes into contact with the original, and moves relative to the frame and independent of the image reader unit in a direction in which the image reader unit applies the pressing force to the original, thereby applying a pressing force to the original independent of the image reader unit.

Abstract translation: 图像读取装置包括图像读取单元，其具有用于读取原稿上的图像的多个光接收元件，并且相对于用于向原稿的读取目标表面施加按压力的框架移动; 以及可旋转的从动辊与原稿接触，并且相对于框架移动并且独立于图像读取器单元沿着图像读取单元向原稿施加压力的方向，从而施加按压力 到原来独立的图像阅读器单元。

公开(公告)号：US20110090590A1

公开(公告)日：2011-04-21

申请号：US12906687

申请日：2010-10-18

Applicant: Yukio YAMAMOTO ,  Yasuhiro MATSUDA ,  Toshinori SUGIYAMA ,  Yoshihiro SAKURAI ,  Kunihito HIGA

Inventor： Yukio YAMAMOTO ,  Yasuhiro MATSUDA ,  Toshinori SUGIYAMA ,  Yoshihiro SAKURAI ,  Kunihito HIGA

IPC: G11B5/596

CPC classification number: G11B5/59627

Abstract: At time to start learning feed-forward control and under the status that servo-drive is not put in execution, a positioning error of repeatable runout is detected by means of a positioning error of repeatable runout operation section and on the basis of a value of the positioning error of repeatable runout, a drive pattern and drive interval of idling are determined by means of a feed-forward data operation section. The drive pattern is stored in a feed-forward data memory and is outputted as feed-forward data in synchronism with the rotation of a spindle during drive interval, thus performing idling of a fine-movement actuator. After the idling has ended, control initiation sequence is resumed to carry out learning of feed-forward control.

Abstract translation: 在开始学习前馈控制的时候，在不执行伺服驱动器的状态下，通过可重复的跳动操作部的定位误差来检测重复跳动的定位误差，并且基于 通过前馈数据操作部分确定可重复跳动的定位误差，驱动模式和空转驱动间隔。 驱动模式存储在前馈数据存储器中，并且在驱动间隔期间与主轴的旋转同步地作为前馈数据输出，从而执行精细运动致动器的空转。 空转结束后，恢复控制启动顺序，进行前馈控制的学习。

公开(公告)号：US20100246044A1

公开(公告)日：2010-09-30

申请号：US12707834

申请日：2010-02-18

Applicant: Shigeo NAKAMURA ,  Yasuhiro MATSUDA ,  Toshinori SUGIYAMA

Inventor： Shigeo NAKAMURA ,  Yasuhiro MATSUDA ,  Toshinori SUGIYAMA

IPC: G11B27/36 ,  G11B21/02

CPC classification number: G11B5/455 ,  G11B5/4826 ,  G11B5/4833 ,  G11B5/4873 ,  G11B19/048 ,  G11B27/105 ,  G11B27/36 ,  G11B2220/2516

Abstract: A magnetic head-positioning system to accurately test a magnetic disk and a magnetic head, comprises a plurality of hinges attached on an end portion of a linear driving element and disposed on both sides of a center line of the linear driving element, which is in parallel with an extension-shrinkage direction of the linear driving element, and an arm having a length longer than a distance between a plurality of hinge joint portions, the plurality of the hinge joint portions each of which join the hinge with a root portion of the arm and which are disposed on both sides of a center line of the arm which is in parallel with a longitudinal direction of the arm. The arm has an extremity portion on which a head gimval assembly is detachably attached and this head gimval assembly is positioned.

Abstract translation: 一种用于精确测试磁盘和磁头的磁头定位系统，包括附接在线性驱动元件的端部上并设置在线性驱动元件的中心线的两侧上的多个铰链，其位于 平行于线性驱动元件的延伸收缩方向，并且臂的长度大于多个铰链接合部之间的距离，所述多个铰链接头部分中的每个铰链接合部分将铰链与根部部分接合 臂，并且设置在与臂的纵向方向平行的臂的中心线的两侧。 臂具有末端部分，头部组合件可拆卸地附接在该末端部分上，并且该头部平衡组件被定位。

公开(公告)号：US20090112795A1

公开(公告)日：2009-04-30

申请号：US11978799

申请日：2007-10-30

Applicant: Sundeep ABRAHAM ,  Wesley C. LIN ,  Yasuhiro MATSUDA ,  Mohammad FAISAL ,  Geeta ARORA

Inventor： Sundeep ABRAHAM ,  Wesley C. LIN ,  Yasuhiro MATSUDA ,  Mohammad FAISAL ,  Geeta ARORA

IPC: G06F17/30

CPC classification number: G06F17/30536 ,  G06F17/30442

Abstract: Systems, methods, and other embodiments associated with selectively acquiring and utilizing query statistics are described. One example method includes selectively acquiring statistics associated with search queries submitted to a search process during a sample period. The statistics may be associated with an index and tokens associated with the index and search queries. The method may also include selecting tokens and/or queries to optimize based, at least in part, on the statistics. In one example, whether and/or how the tokens and/or queries are optimized may depend on estimating index fragmentation based, at least in part, on the statistics.

Abstract translation: 描述了与选择性地获取和利用查询统计相关联的系统，方法和其他实施例。 一个示例性方法包括选择性地获取在采样周期期间提交到搜索过程的搜索查询相关联的统计信息。 统计信息可能与与索引和搜索查询相关联的索引和令牌相关联。 该方法还可以包括至少部分地基于统计信息来选择令牌和/或查询进行优化。 在一个示例中，是否和/或如何优化令牌和/或查询可以取决于至少部分地基于统计量估计索引碎片。

公开(公告)号：US20100079900A1

公开(公告)日：2010-04-01

申请号：US12537616

申请日：2009-08-07

Applicant: Shigeo NAKAMURA ,  Kimihiko SUDO ,  Toshinori SUGIYAMA ,  Yasuhiro MATSUDA ,  Yukio YAMAMOTO ,  Yoshihiro SAKURAI

Inventor： Shigeo NAKAMURA ,  Kimihiko SUDO ,  Toshinori SUGIYAMA ,  Yasuhiro MATSUDA ,  Yukio YAMAMOTO ,  Yoshihiro SAKURAI

IPC: G11B21/02

CPC classification number: G11B19/048 ,  G11B5/455 ,  G11B5/4555 ,  G11B5/5552 ,  G11B5/59627

Abstract: A magnetic head-positioning servo system is provided to accurately test a magnetic disk with a track written in advance, by providing two fine actuators. The second fine actuator, to which a magnetic head is attached, is mounted on the first fine actuator. The second fine actuator has a larger generating displacement than a generating displacement of the first fine actuator, and lets the magnetic disk to follow the eccentricity of the track. In this way, the positioning accuracy can be increased.

Abstract translation: 提供一种磁头定位伺服系统，通过提供两个精细的致动器来精确地测试具有预先写入的轨迹的磁盘。 安装有磁头的第二精细致动器安装在第一精细致动器上。 第二精细致动器具有比第一精细致动器的产生位移更大的发生位移，并且使磁盘跟随轨道的偏心。 以这种方式，可以提高定位精度。