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    • 5. 发明授权
    • Disk drive device and method for determining data track format of the disk drive device
    • 用于确定磁盘驱动器装置的数据磁道格式的磁盘驱动装置和方法
    • US08009376B2
    • 2011-08-30
    • US12283731
    • 2008-09-12
    • Takahiro SaitoKazunari TsuchimotoAtsushi Kanamaru
    • Takahiro SaitoKazunari TsuchimotoAtsushi Kanamaru
    • G11B5/09
    • G11B20/1258G11B5/59644G11B20/22G11B2020/10916G11B2020/1238G11B2020/1244G11B2020/1292G11B2020/1294G11B2220/2516
    • Embodiments of the present invention help to improve the capacity and the performance of a disk drive device. According to one embodiment, a data track pitch is set to each recording surface. The recording surfaces are divided into bands. A hard disk drive (HDD) sequentially moves a head to an adjacent data track in a band and performs a head switch at the band end in its data accessing. On a recording surface, the number of data tracks in each band is variable; and each band is constituted by different number of data tracks as necessary. The number of data tracks in each band is set so that the radial position of the band end comes close to the radial position of the corresponding band end on another recording surface. Accordingly, even if the recording surfaces have different variation rates of the data track pitch in the radial direction, increase in process time due to head switches can be suppressed.
    • 本发明的实施例有助于提高磁盘驱动装置的容量和性能。 根据一个实施例,将数据轨道间距设置到每个记录表面。 记录表面被分成带。 硬盘驱动器(HDD)顺序地将磁头移动到频带中的相邻数据磁道,并在其数据访问中在频带端执行磁头切换。 在记录表面上,每个频带中的数据轨迹数是可变的; 并且每个频带由必要的不同数量的数据轨道构成。 每个带中的数据轨道的数量被设置为使得带端的径向位置接近另一个记录表面上相应带端的径向位置。 因此,即使记录面在径向方向上具有不同的数据磁道间距的变化率,也可以抑制由磁头开关引起的处理时间的增加。
    • 8. 发明申请
    • AQUEOUS PIGMENT DISPERSION, METHOD FOR PRODUCING THE SAME, AND RECORDING LIQUID CONTAINING THE SAME
    • 水性色素分散剂,其制造方法和含有其的记录液体
    • US20100010148A1
    • 2010-01-14
    • US12524726
    • 2008-02-18
    • Shinichiro ImaiMasanobu YokoyamaTakahiro SaitoMayuko TakasuRie NishidaTerutoshi Sato
    • Shinichiro ImaiMasanobu YokoyamaTakahiro SaitoMayuko TakasuRie NishidaTerutoshi Sato
    • C09D11/10C08L33/02
    • C09D17/001C09D11/322
    • Disclosed is a recording liquid including an aqueous pigment dispersion, which has high dispersion stability and high discharge properties and gives a print with superior gloss. Specifically, the aqueous pigment dispersion contains a pigment; a polymer containing cationic monomer structural units and hydrophobic monomer structural units (hydrophobic-group-containing cationic polymer); and a polymer containing anionic monomer structural units and hydrophobic monomer structural units (hydrophobic-group-containing anionic polymer), in which the ratio of the number of anionic groups in the hydrophobic-group-containing anionic polymer to the number of cationic groups in the hydrophobic-group-containing cationic polymer is 1.0 or more and 8 or less. The molar ratio of the hydrophobic monomer structural units to the anionic monomer structural units in the hydrophobic-group-containing anionic polymer is from 5/95 to 50/50 or the content of the pigment is 51 percent by weight or more based on the solids content. This aqueous pigment dispersion is produced by dispersing a pigment with a hydrophobic-group-containing cationic polymer, subsequently subjecting the dispersion to ultrafiltration/microfiltration, and adding a hydrophobic-group-containing anionic polymer thereto.
    • 公开了一种包含水性颜料分散体的记录液,其具有高分散稳定性和高放电性,并且具有优异的光泽性。 具体地说,水性颜料分散体含有颜料; 含有阳离子单体结构单元和疏水单体结构单元(含疏水基阳离子聚合物)的聚合物; 和含有阴离子单体结构单元和疏水单体结构单元(含疏水基阴离子聚合物)的聚合物,其中含疏水基团的阴离子聚合物中阴离子基团数与阳离子基团数之比 含疏水基的阳离子聚合物为1.0以上且8以下。 疏水基单体结构单元与含疏水基团的阴离子聚合物中阴离子单体结构单元的摩尔比为5/95至50/50,或基于固体的颜料含量为51重量%或更多 内容。 这种水性颜料分散体是通过用含有疏水基团的阳离子聚合物分散颜料,随后将分散体进行超滤/微滤,并向其中加入含疏水基团的阴离子聚合物制备的。
    • 10. 发明授权
    • Apparatus of and method for drawing graphics, and computer program product
    • 绘图的装置和方法,以及计算机程序产品
    • US07446770B2
    • 2008-11-04
    • US10981681
    • 2004-11-05
    • Yoshiyuki KokojimaTakahiro SaitoTakashi TakemotoJiro AmemiyaKenichi Mori
    • Yoshiyuki KokojimaTakahiro SaitoTakashi TakemotoJiro AmemiyaKenichi Mori
    • G06T11/20G09G5/00
    • G06T11/40
    • An apparatus of drawing graphics includes an edge coefficient calculator calculating, from vertex data on vertices of a triangle, edge coefficients of edge functions used to determine whether a pixel is present in an inside region of the triangle, and a bounding box calculator calculating a bounding box of projected images of the triangle on a projection plane based on the edge coefficients. The apparatus also includes a starting point determiner and a traverser. The starting point determiner classifies the projected images of the triangle based on a combination of the edge coefficients for respective sides of the triangle, and determines a scan starting point from a corner of the bounding box based on classification of the projected images. The traverser generates pixel data used in rasterization by scanning the bounding box from the scan starting point.
    • 绘制图形的装置包括边缘系数计算器,从三角形顶点的顶点数据计算用于确定像素是否存在于三角形的内部区域中的边缘函数的边缘系数,以及边界框计算器,计算边界 基于边缘系数在投影平面上的三角形的投影图像的框。 该装置还包括起点确定器和横越器。 起始点确定器基于三角形的相应边缘的边缘系数的组合来对三角形的投影图像进行分类,并且基于投影图像的分类从边界框的角确定扫描起始点。 遍历器通过从扫描起始点扫描边界框来生成光栅化中使用的像素数据。