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    • 14. 发明申请
    • THERMALLY ASSISTED MAGNETIC RECORDING DEVICE
    • 热辅助磁记录装置
    • US20110299367A1
    • 2011-12-08
    • US13153073
    • 2011-06-03
    • IRIZO NANIWATakuya MatsumotoYukio Kato
    • IRIZO NANIWATakuya MatsumotoYukio Kato
    • G11B11/00
    • G11B5/3106G11B5/3136G11B5/40G11B5/607G11B5/6088G11B2005/0021
    • There is provided a thermally assisted magnetic recording device capable of preventing collision between a thermally assisted magnetic recording head and a disk due to thermal deformation of a near-field transducer. The thermally assisted magnetic recording device includes a temperature sensor for measuring the temperature in the vicinity of the near-field transducer, a table that stores the relationship between temperature and deformation in the vicinity of the near-field transducer, and a control unit. The control unit calculates the deformation in the vicinity of the near-field transducer, from the temperature measured by the temperature sensor and the relationship between temperature and deformation stored in the table. Then, the control unit drives the flying height control actuator according to the calculated deformation to control the distance between the thermally assisted magnetic recording and the disk in order to avoid contact between them.
    • 提供了一种热辅助磁记录装置,其能够防止由于近场换能器的热变形引起的热辅助磁记录头与盘的碰撞。 热辅助磁记录装置包括用于测量近场换能器附近的温度的温度传感器,存储近场换能器附近的温度与变形之间的关系的表以及控制单元。 控制单元根据由温度传感器测量的温度和存储在表中的温度与变形之间的关系来计算近场换能器附近的变形。 然后,控制单元根据计算出的变形驱动飞行高度控制致动器,以控制热辅助磁记录与盘之间的距离,以避免它们之间的接触。
    • 15. 发明授权
    • Thermally-assisted recording (TAR) head with waveguide having tapered region coupled to near-field transducer
    • 具有与近场换能器耦合的锥形区域的波导的热辅助记录(TAR)头
    • US08619514B1
    • 2013-12-31
    • US13571425
    • 2012-08-10
    • Takuya Matsumoto
    • Takuya Matsumoto
    • G11B11/00
    • G11B5/314G11B5/6088G11B2005/0021
    • A thermally-assisted recording (TAR) head for recording data in data tracks of a TAR disk has an air-bearing slider that supports a near-field transducer (NFT) and an optical waveguide that directs laser light to the NFT. The NFT has an output end at the slider's air-bearing surface (ABS) located between the write pole and the optical waveguide in the along-the-track direction. The NFT output end is generally triangularly shaped with an apex facing the write pole and a back edge wider than the apex in the cross-track axis direction facing the waveguide. The surface of the waveguide facing the NFT back edge is tapered, with a width in the cross-track axis direction at a region recessed from the ABS and a smaller width in the cross-track axis direction at an end near the ABS.
    • 用于在TAR盘的数据轨道中记录数据的热辅助记录(TAR)头具有支撑近场换能器(NFT)的空气轴承滑块和将激光引导到NFT的光波导。 NFT在沿着轨道方向位于写入极和光波导之间的滑块的空气轴承表面(ABS)处具有输出端。 NFT输出端通常是三角形的,其顶点面向写入极,并且后边缘比面向波导的横向轨道轴线方向上的顶点更宽。 面向NFT后边缘的波导表面是锥形的,其横向轴线方向的宽度在从ABS凹陷的区域和在靠近ABS的端部处的横向轨道轴线方向上的较小宽度。
    • 16. 发明授权
    • Image processing apparatus, image processing method, and image processing program
    • 图像处理装置,图像处理方法和图像处理程序
    • US08547452B2
    • 2013-10-01
    • US13236754
    • 2011-09-20
    • Takayoshi KawaguchiTakuya Matsumoto
    • Takayoshi KawaguchiTakuya Matsumoto
    • H04N5/235H04N5/217
    • H04N5/2353H04N5/23245H04N5/2352H04N5/243H04N5/35536H04N5/35581
    • An image processing apparatus including: a pixel array section in which unit pixels, each having a photoelectric conversion element, are two-dimensionally arranged in a matrix; and a signal processing section determining a signal level by any one of a water gate mode determining the signal level in accordance with a first amount of electric charge based on an electric charge accumulated in the unit pixels, the electric charge more than or equal to a prescribed accumulated electric charge, in a first exposure period or a second amount of electric charge based on all the electric charges accumulated in the unit pixels in a second exposure period including the first exposure period and a multiple exposure mode determining the signal level in accordance with a plurality of amounts of electric charge based on all the electric charges accumulated in the unit pixels in a plurality of exposure periods.
    • 一种图像处理设备,包括:像素阵列部分,其中具有光电转换元件的单位像素被二维地排列成矩阵; 以及信号处理部,其基于积蓄在单位像素中的电荷,根据第一电荷量确定信号电平的水闸模式中的任一个来确定信号电平,电荷大于或等于 在第一曝光期间或第二次电量的基础上,基于在包括第一曝光期间的第二曝光期间累积的全部电荷和根据第一曝光期间确定信号电平的多重曝光模式 基于在多个曝光周期中累积在单位像素中的所有电荷的多个电荷量。
    • 19. 发明授权
    • Head for thermal assisted magnetic recording device, and thermal assisted magnetic recording device
    • 热辅助磁记录装置头,热辅助磁记录装置
    • US08243561B2
    • 2012-08-14
    • US13025256
    • 2011-02-11
    • Takuya Matsumoto
    • Takuya Matsumoto
    • G11B13/08
    • G11B5/105G11B5/1278G11B5/314G11B5/6088G11B2005/0021
    • In a head for thermal assisted magnetic recording device, a semiconductor laser is mounted so that the total height of the head does not become larger and light power fluctuation due to wavelength fluctuation occurs less frequently. In addition, the rise in temperature of the mounted semiconductor laser is suppressed. A semiconductor laser is placed on a side surface which is different from surfaces on an inflow end side and a trailing side, of four side surfaces of a floating slider. An entrance of a waveguide is placed on the side surface of the floating slider, to thereby cause emitted light from the semiconductor laser to directly enter the waveguide. A curved line part or a reflective mirror is formed in the middle of the waveguide so that the light which has entered the waveguide travels toward an optical near-field generating element.
    • 在热辅助磁记录装置的头部中,安装半导体激光器,使得头部的总高度不变大,并且由于波长波动引起的光功率波动较少发生。 此外,抑制了安装的半导体激光器的温度升高。 半导体激光器被放置在与浮动滑动器的四个侧表面的流入端侧和后侧的表面不同的侧表面上。 波导的入口放置在浮动滑块的侧表面上,从而使来自半导体激光器的发射光直接进入波导。 在波导管的中部形成曲线部分或反射镜,使得已进入波导的光向光学近场产生元件行进。