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    • 5. 发明授权
    • Technique for controlling access to data
    • 控制数据访问的技术
    • US08949202B2
    • 2015-02-03
    • US11950762
    • 2007-12-05
    • Ryo Yoshida
    • Ryo Yoshida
    • G06F17/30G06F21/62
    • G06F21/6218G06F2221/2141
    • Access control with easy change/extension is implemented. Access to data is controlled by a first storage unit that stores a plurality of attribute values respectively selected from a plurality of integers which are relatively prime and identifying a plurality of attributes of users, in association with respective users a second storage unit that stores a product of at least two attribute values which are common to users belonging to a set of users, in association with respective data to be accessed, to show the set of users which are targets of controlling access to the data. A plurality of attribute values corresponding to a user who requests access are read from the first storage unit, and a product of at least two of the plurality of read attribute values is calculated. The user is accepted as a target of controlling access to the data, on condition that the calculated product of attribute values matches a product of attribute values stored in the second storage unit in association with the data to be accessed.
    • 实现了易于更改/扩展的访问控制。 数据的访问由第一存储单元控制,第一存储单元存储分别从多个相关素数的整数中选择的多个属性值,并且识别用户的多个属性,与相应用户相关联地存储产品的第二存储单元 与属于一组用户的用户相关联的至少两个属性值与要访问的相应数据相关联,以显示作为控制对数据的访问的目标的用户集合。 从第一存储单元读取与请求访问的用户对应的多个属性值,并且计算多个读取属性值中的至少两个的乘积。 用户被接受为控制对数据的访问的目标,条件是所计算的属性值的乘积与存储在第二存储单元中的属性值的乘积与要访问的数据相关联。
    • 6. 发明申请
    • X-RAY CT APPARATUS AND TOMOGRAPHY METHOD
    • X射线CT装置和TOMOGRAPHY方法
    • US20120002782A1
    • 2012-01-05
    • US13254634
    • 2010-03-04
    • Ryo YoshidaYoshiaki Sugaya
    • Ryo YoshidaYoshiaki Sugaya
    • A61B6/03
    • A61B6/032A61B6/04
    • When the diagnostic center position and a reconstruction FOV are designated using a tomographic image, a system control device controls a top plate of a table to move from side to side and up and down so that the designated diagnostic center position reaches the center position of scanning. A scanner is provided with a plurality of compensation filters configured to adjust X-ray irradiation distribution, and the system control device selects a proper compensation filter according to the designated reconstruction FOV from among the plurality of compensation filters, switching to the selected compensation filter. The compensation filters include at least a compensation filter (size L) of wide-width X-ray irradiation distribution and a compensation filter (size S) of narrow-width X-ray irradiation distribution in a scanner-turning direction. When the designated reconstruction FOV is a predetermined threshold or less, the compensation filter is switched to the S-sized compensation filter.
    • 当使用断层图像指定诊断中心位置和重建FOV时,系统控制装置控制台的顶板从一侧到另一侧上下移动,使得指定的诊断中心位置到达扫描的中心位置 。 扫描器设置有多个补偿滤波器,其被配置为调整X射线照射分布,并且系统控制装置根据来自多个补偿滤波器的指定的重构FOV来选择适当的补偿滤波器,切换到所选择的补偿滤波器。 补偿滤波器至少包括宽幅X射线照射分布的补偿滤波器(尺寸L)和扫描仪转向方向上的窄宽度X射线照射分布的补偿滤波器(尺寸S)。 当指定的重建FOV为预定阈值以下时,将补偿滤波器切换为S尺寸的补偿滤波器。
    • 7. 发明授权
    • Microactuator, head gimbal assembly, and disk drive device
    • 微型致动器,头万向架组件和磁盘驱动器
    • US08068313B2
    • 2011-11-29
    • US12271820
    • 2008-11-14
    • Nobumasa NishiyamaRyo YoshidaHaruhide TakahashiShinobu HagiyaToshiki Hirano
    • Nobumasa NishiyamaRyo YoshidaHaruhide TakahashiShinobu HagiyaToshiki Hirano
    • G11B5/48
    • G11B5/4826G11B5/4873G11B5/5552
    • Embodiments of the present invention relate to approaches to effectively let noise on a head slider bonded to a silicon substrate of a microactuator, escape to the ground. A head gimbal assembly (HGA) according to an embodiment of the present invention comprises a microactuator bonded to a gimbal tongue. The microactuator comprises a piezoelectric element and a movable part for moving in response to expansion or contraction of the piezoelectric element. The motion of the movable part causes a head slider to slightly move. The microactuator further comprises a conductive path including an impurity-containing silicon layer formed on the silicon substrate. The conductive path transmits electric charge of the head slider to a suspension. The conductivity of the impurity-containing silicon layer is lower than the one of the silicon substrate so that the noise charge of the head slider may escape to the suspension.
    • 本发明的实施例涉及有效地使结合到微致动器的硅衬底的磁头滑块上的噪声逃逸到地面的方法。 根据本发明的实施例的头万向节组件(HGA)包括结合到万向节舌的微致动器。 微致动器包括压电元件和用于响应于压电元件的膨胀或收缩而移动的可移动部件。 可移动部分的运动导致磁头滑块稍微移动。 微致动器还包括导电路径,该导电路径包括在硅衬底上形成的含杂质的硅层。 导电路径将磁头滑块的电荷传递到悬架。 含杂质的硅层的导电率低于硅衬底的电导率,使得磁头滑块的噪声电荷可能逸出到悬架。