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    Digital magnetic reproducing apparatus and digital magnetic recording/reproducing apparatus employing detection of second harmonic distortion and bias current control
    1.
    发明授权
    Digital magnetic reproducing apparatus and digital magnetic recording/reproducing apparatus employing detection of second harmonic distortion and bias current control 失效
    采用二次谐波失真和偏置电流控制的数字磁再现装置和数字磁记录/再现装置

    公开(公告)号：US6122126A

    公开(公告)日：2000-09-19

    申请号：US475374

    申请日：1995-06-07

    申请人： Takamichi Yamakoshi ,  Yoshiharu Shimano ,  Hiroaki Yada

    发明人： Takamichi Yamakoshi ,  Yoshiharu Shimano ,  Hiroaki Yada

    IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/09 ,  G11B20/10 ,  G11B20/22 ,  G11B5/03

    CPC分类号： G11B5/012 ,  G11B20/10009 ,  G11B5/09 ,  G11B2005/0018

    摘要： A digital magnetic reproducing apparatus comprises a reproducing head to reproduce data from a magnetic recording medium; an equalizer for shaping, by a partial response method, the waveform of the reproduced signal outputted from the reproducing head; and a decoder for decoding, by a maximum likelihood decoding method, the equalized reproduced signal obtained from the equalizer. The reproducing head employed in this apparatus is an MR (magnetoresistance effect) head which is capable of reducing the second harmonic distortion of the reproduced signal to be -25 dB or lower. Therefore the deterioration of the bit error rate that may result from the nonlinear distortion of the MR head can be further lowered within a sufficiently suppressed range in practical use.

    摘要翻译： 数字磁再现装置包括：再现头，用于从磁记录介质再现数据; 均衡器，用于通过部分响应方法来形成从再现头输出的再现信号的波形; 以及解码器，用于通过最大似然解码方法对从均衡器获得的均衡的再现信号进行解码。 在该装置中使用的再现头是能够将再现信号的二次谐波失真降低到-25dB或更低的MR（磁阻效应）头。 因此，在实际使用中，可以在充分抑制的范围内进一步降低由MR磁头的非线性失真引起的误码率的劣化。

    Microscope and area determination method
    4.
    发明授权
    Microscope and area determination method 有权
    显微镜和面积测定方法

    公开(公告)号：US09013570B2

    公开(公告)日：2015-04-21

    申请号：US13169277

    申请日：2011-06-27

    申请人： Goh Matsunobu ,  Takamichi Yamakoshi

    发明人： Goh Matsunobu ,  Takamichi Yamakoshi

    IPC分类号： G02B21/26 ,  G06K9/32 ,  G02B21/12 ,  G02B21/36 ,  G06K9/00

    CPC分类号： G02B21/125 ,  G02B21/26 ,  G02B21/365 ,  G06K9/00127 ,  G06K9/3216 ,  G06K2009/3225

    摘要： Provided is a microscope including: dark field illumination and bright field illumination which illuminate a preparat where a sample mounted on a slide glass is covered with a cover glass and a mounting agent; an image capturing unit which acquires a dark field image by image-capturing the preparat illuminated by the dark field illumination and which acquires a bright field image by image-capturing the preparat illuminated by the bright field illumination; and a magnified portion image acquisition area determination unit which detects an edge of the cover glass in the preparat based on the dark field image and the bright field image acquired by the image capturing unit and determines an internal area of the detected edge of the cover glass as a magnified portion image acquisition area of the sample.

    摘要翻译： 提供一种显微镜，包括：暗场照明和亮场照明，其照亮安装在载玻片上的样品被盖玻璃和安装剂覆盖的准备物; 图像拍摄单元，其通过图像捕获由暗场照明照明的准备物获取暗场图像，并且通过对通过亮场照明照明的准备物进行图像捕获来获取亮场图像; 以及放大部分图像获取区域确定单元，其基于暗场图像和由图像捕获单元获取的亮视场图像来检测准备区中的盖玻片的边缘，并且确定盖玻片的检测到的边缘的内部区域 作为样本的放大部分图像获取区域。

    OPTICAL DISK APPARATUS, CONTROL METHOD, AND PROGRAM
    6.
    发明申请
    OPTICAL DISK APPARATUS, CONTROL METHOD, AND PROGRAM 失效
    光盘设备，控制方法和程序

    公开(公告)号：US20090109811A1

    公开(公告)日：2009-04-30

    申请号：US12244365

    申请日：2008-10-02

    申请人： Yasushi Tomita ,  Takamichi Yamakoshi ,  Kamon Uemura

    发明人： Yasushi Tomita ,  Takamichi Yamakoshi ,  Kamon Uemura

    IPC分类号： G11B7/00

    CPC分类号： G11B7/0956 ,  G11B7/094 ,  G11B7/0945 ,  G11B7/13925 ,  G11B2007/0013

    摘要： An optical disk apparatus driving an optical disk includes a tilt-angle adjusting unit configured to adjust a tilt angle indicating the tilt of an optical axis of laser light emitted from a pickup to detect an optimal tilt angle at which a traverse signal has the maximum amplitude and a storing unit configured to store information about the optimal tilt angle. When the optical disk has multiple recording layers on one side, the tilt-angle adjusting unit adjusts the tilt angle with respect to each of the multiple recording layers to detect the optimal tilt angle and the storing unit stores information about the optimal tilt angle with respect to each of the multiple recording layers. The tilt angle with respect to each of the multiple recording layers is controlled in accordance with the information about the optimal tilt angle with respect to each of the multiple recording layers.

    摘要翻译： 驱动光盘的光盘装置具有：倾斜角度调整部，被配置为调整表示从拾取器发出的激光的光轴倾斜的倾斜角，以检测横动信号具有最大幅度的最佳倾斜角 以及存储单元，被配置为存储关于最佳倾斜角度的信息。 当光盘在一侧具有多个记录层时，倾斜角度调整单元相对于每个多个记录层调整倾斜角度以检测最佳倾斜角度，并且存储单元将关于最佳倾斜角的信息相对于 到多个记录层中的每一个。 根据关于多个记录层中的每一个的最佳倾斜角的信息来控制相对于每个多个记录层的倾斜角度。

    Phase synchronizing apparatus, phase synchronizing method and disc drive
    7.
    发明授权
    Phase synchronizing apparatus, phase synchronizing method and disc drive 失效
    相位同步装置，相位同步方法和磁盘驱动器

    公开(公告)号：US06381292B1

    公开(公告)日：2002-04-30

    申请号：US09215007

    申请日：1998-12-17

    申请人： Takamichi Yamakoshi

    发明人： Takamichi Yamakoshi

    IPC分类号： H04L700

    CPC分类号： H03L7/093 ,  G11B5/59633 ,  G11B20/1403 ,  H03L7/08 ,  H03L7/18

    摘要： In a phase synchronizing apparatus and a phase synchronizing method, a plurality of sine-wave signals synchronizing with the rotation of a discoid recording medium and having phases different from each other are generated, amplitudes of the plurality of sine waveforms are successively corrected in accordance with the output of phase comparator, and thereafter the correction results are supplied to a closed loop composed of phase comparison means and clock signal generator. Thereby, even if a phase fluctuation occurs in a time reference signal due to the eccentricity of a discoid recording medium, it is possible to correct a phase error generated in the output of the phase comparator correspondingly to the phase fluctuation and thus, realize a phase synchronizing apparatus and a phase synchronizing method capable of outputting a clock signal accurately following the eccentricity of a discoid recording medium.

    摘要翻译： 在相位同步装置和相位同步方法中，产生与盘状记录介质的旋转同步并且具有彼此不同相位的多个正弦波信号，多个正弦波形的振幅根据 相位比较器的输出，此后将校正结果提供给由相位比较装置和时钟信号发生器组成的闭环。 因此，即使由于盘状记录介质的偏心引起的时间参考信号中发生相位波动，也可以相位相位校正相位比较器的输出中产生的相位误差，从而实现相位 同步装置和相位同步方法，其能够在盘状记录介质的偏心之后精确地输出时钟信号。

    MICROSCOPE AND AREA DETERMINATION METHOD
    9.
    发明申请
    MICROSCOPE AND AREA DETERMINATION METHOD 有权
    微观和区域确定方法

    公开(公告)号：US20120002034A1

    公开(公告)日：2012-01-05

    申请号：US13169277

    申请日：2011-06-27

    申请人： Goh Matsunobu ,  Takamichi Yamakoshi

    发明人： Goh Matsunobu ,  Takamichi Yamakoshi

    IPC分类号： H04N7/18

    CPC分类号： G02B21/125 ,  G02B21/26 ,  G02B21/365 ,  G06K9/00127 ,  G06K9/3216 ,  G06K2009/3225

    摘要： Provided is a microscope including: dark field illumination and bright field illumination which illuminate a preparat where a sample mounted on a slide glass is covered with a cover glass and a mounting agent; an image capturing unit which acquires a dark field image by image-capturing the preparat illuminated by the dark field illumination and which acquires a bright field image by image-capturing the preparat illuminated by the bright field illumination; and a magnified portion image acquisition area determination unit which detects an edge of the cover glass in the preparat based on the dark field image and the bright field image acquired by the image capturing unit and determines an internal area of the detected edge of the cover glass as a magnified portion image acquisition area of the sample.

    摘要翻译： 提供一种显微镜，包括：暗场照明和亮场照明，其照亮安装在载玻片上的样品被盖玻璃和安装剂覆盖的准备物; 图像拍摄单元，其通过图像捕获由暗场照明照明的准备物获取暗场图像，并且通过对通过亮场照明照明的准备物进行图像捕获来获取亮场图像; 以及放大部分图像获取区域确定单元，其基于暗场图像和由图像捕获单元获取的亮视场图像来检测准备区中的盖玻片的边缘，并且确定盖玻片的检测到的边缘的内部区域 作为样本的放大部分图像获取区域。