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1.发明授权公开(公告)号：US07817362B2
公开(公告)日：2010-10-19
申请号：US10347387
申请日：2003-01-21
申请人： Masayoshi Takahashi , Ritsuro Orihashi , Wen Li , Shinji Homma
发明人： Masayoshi Takahashi , Ritsuro Orihashi , Wen Li , Shinji Homma
IPC分类号： G11B27/36
CPC分类号： G11B27/36 , G11B2220/2516
摘要： An inspection apparatus and method are disclosed for inspecting a magnetic disk or a magnetic head. A first reference signal generating source generates reference signals of a controllable oscillating frequency, and a signal switching means selects either a reference signal or test data reproduced by the magnetic head. Factors such as offsets and gain differentials among signal distribution paths, phase shifts of sampling clocks supplied to a plurality of AID converters, and frequency-dependence of the transfer function and phase response of signal paths are identified so that errors due to these factors can be detected. Based on the detected values of these factors and errors, reference signals are utilized to compensate test data errors.
摘要翻译： 公开了一种用于检查磁盘或磁头的检查装置和方法。 第一参考信号发生源产生可控振荡频率的参考信号，并且信号切换装置选择由磁头再现的参考信号或测试数据。 识别诸如信号分配路径中的偏移和增益差异，提供给多个AID转换器的采样时钟的相移以及信号路径的传递函数和相位响应的频率依赖性等因素，使得由于这些因素导致的误差可以是 检测到。 基于这些因素和误差的检测值，使用参考信号来补偿测试数据错误。
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2.发明授权公开(公告)号：US07276900B2
公开(公告)日：2007-10-02
申请号：US11272861
申请日：2005-11-15
IPC分类号： G01R33/12
CPC分类号： G11B5/455 , G11B5/4555 , G11B20/1816 , G11B27/36 , G11B2005/001 , G11B2005/0013
摘要： A magnetic characteristic inspecting apparatus including a plurality of disk rotating devices or a plurality of magnetic heads include a unit for switching output signals of write signal production units or allocating the output signals to the magnetic heads, a unit for switching signals read from the magnetic heads or allocating the read signals to measurement resources, and a unit for selecting any of the disk rotating devices synchronously with which the measurement resources will perform measurement. The write signal production units and measurement resources are shared among inspections of the plurality of disk rotating devices or the plurality of heads.
摘要翻译： 包括多个盘旋转装置或多个磁头的磁特性检查装置包括用于切换写入信号产生单元的输出信号或将输出信号分配给磁头的单元，用于切换从磁头读取的信号的单元 或将读取信号分配给测量资源，以及用于选择与测量资源将执行测量同步的任何盘旋转设备的单元。 写入信号生成单元和测量资源在多个盘旋转装置或多个头的检查之间共享。
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3.发明申请公开(公告)号：US20060132122A1
公开(公告)日：2006-06-22
申请号：US11272861
申请日：2005-11-15
IPC分类号： G01R33/12
CPC分类号： G11B5/455 , G11B5/4555 , G11B20/1816 , G11B27/36 , G11B2005/001 , G11B2005/0013
摘要： A magnetic characteristic inspecting apparatus including a plurality of disk rotating devices or a plurality of magnetic heads include a unit for switching output signals of write signal production units or allocating the output signals to the magnetic heads, a unit for switching signals read from the magnetic heads or allocating the read signals to measurement resources, and a unit for selecting any of the disk rotating devices synchronously with which the measurement resources will perform measurement. The write signal production units and measurement resources are shared among inspections of the plurality of disk rotating devices or the plurality of heads.
摘要翻译： 包括多个盘旋转装置或多个磁头的磁特性检查装置包括用于切换写入信号产生单元的输出信号或将输出信号分配给磁头的单元，用于切换从磁头读取的信号的单元 或将读取信号分配给测量资源，以及用于选择与测量资源将执行测量同步的任何盘旋转设备的单元。 写入信号生成单元和测量资源在多个盘旋转装置或多个头的检查之间共享。
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4.发明申请公开(公告)号：US20100033862A1
公开(公告)日：2010-02-11
申请号：US12503901
申请日：2009-07-16
IPC分类号： G11B27/36
CPC分类号： G11B20/1816 , G11B5/455 , G11B5/4555 , G11B2020/1281 , G11B2220/2516
摘要： The present invention provides a technique for converting burst data to digital data, applying FFT operation to 2n (n is an integer) pieces of digital data in response to any start signal synchronized with a sector signal, applying a window function centered around data corresponding to a frequency of a burst data signal component before the FFT operation, and performing head positioning based on a result as the detected value of the burst data.
摘要翻译： 本发明提供了一种用于将突发数据转换为数字数据的技术，响应于与扇区信号同步的任何起始信号将FFT运算应用于2n（n为整数）数字数据，应用以对应于 在FFT操作之前的突发数据信号分量的频率，并且基于结果执行头位置定位作为突发数据的检测值。
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5.发明授权公开(公告)号：US06700369B1
公开(公告)日：2004-03-02
申请号：US09722298
申请日：2000-11-28
申请人： Masami Makuuchi , Ritsurou Orihashi , Norio Chujo , Masayoshi Takahashi , Yoshihiko Hayashi , Shinji Homma
发明人： Masami Makuuchi , Ritsurou Orihashi , Norio Chujo , Masayoshi Takahashi , Yoshihiko Hayashi , Shinji Homma
IPC分类号： G01R3312
CPC分类号： G01R33/1207 , G11B5/00 , G11B5/012 , G11B5/455 , G11B20/10009 , G11B27/36 , G11B2005/001 , G11B2220/20
摘要： A testing apparatus of a magnetic recording medium for conducting a test on the magnetic recording medium by using reproduced data obtained through reproduction of the magnetic medium, including a plurality of conversion means for converting the reproduced data into digital data, holding means for holding the digital data converted by the plurality of conversion means, data processing means for performing a calculation process on the digital data held by the holding means in relation to a magnetic characteristic of the magnetic recording medium, and analysis processing means for performing an analysis to determine whether or not information obtained by the data processing means satisfies a certain condition.
摘要翻译： 一种用于通过使用通过再现磁介质获得的再现数据在磁记录介质上进行测试的磁记录介质的测试装置，包括用于将再现数据转换为数字数据的多个转换装置，用于保持数字 由多个转换装置转换的数据，用于对由保持装置保持的数字数据相对于磁记录介质的磁特性执行计算处理的数据处理装置;以及分析处理装置，用于执行分析以确定是否或 不是由数据处理装置获得的信息不满足一定条件。
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6.发明授权公开(公告)号：US08000047B2
公开(公告)日：2011-08-16
申请号：US12503901
申请日：2009-07-16
CPC分类号： G11B20/1816 , G11B5/455 , G11B5/4555 , G11B2020/1281 , G11B2220/2516
摘要： The present invention provides a technique for converting burst data to digital data, applying FFT operation to 2n (n is an integer) pieces of digital data in response to any start signal synchronized with a sector signal, applying a window function centered around data corresponding to a frequency of a burst data signal component before the FFT operation, and performing head positioning based on a result as the detected value of the burst data.
摘要翻译： 本发明提供了一种用于将突发数据转换为数字数据的技术，响应于与扇区信号同步的任何起始信号将FFT运算应用于2n（n为整数）数字数据，应用以对应于 在FFT操作之前的突发数据信号分量的频率，并且基于结果执行头位置定位作为突发数据的检测值。
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7.发明授权公开(公告)号：US06894489B2
公开(公告)日：2005-05-17
申请号：US10735909
申请日：2003-12-16
申请人： Masami Makuuchi , Ritsurou Orihashi , Norio Chujo , Masayoshi Takahashi , Yoshihiko Hayashi , Shinji Homma
发明人： Masami Makuuchi , Ritsurou Orihashi , Norio Chujo , Masayoshi Takahashi , Yoshihiko Hayashi , Shinji Homma
CPC分类号： G01R33/1207 , G11B5/00 , G11B5/012 , G11B5/455 , G11B20/10009 , G11B27/36 , G11B2005/001 , G11B2220/20
摘要： A testing apparatus of a magnetic recording medium for conducting a test on the magnetic recording medium by using reproduced data obtained through reproduction of the magnetic medium, including a plurality of conversion means for converting the reproduced data into digital data, holding means for holding the digital data converted by the plurality of conversion means, data processing means for performing a calculation process on the digital data held by the holding means in relation to a magnetic characteristic of the magnetic recording medium, and analysis processing means for performing an analysis to determine whether or not information obtained by the data processing means satisfies a certain condition.
摘要翻译： 一种用于通过使用通过再现磁介质获得的再现数据在磁记录介质上进行测试的磁记录介质的测试装置，包括用于将再现数据转换为数字数据的多个转换装置，用于保持数字 由多个转换装置转换的数据，用于对由保持装置保持的数字数据相对于磁记录介质的磁特性执行计算处理的数据处理装置;以及分析处理装置，用于执行分析以确定是否或 不是由数据处理装置获得的信息不满足一定条件。
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8.发明申请公开(公告)号：US20120307605A1
公开(公告)日：2012-12-06
申请号：US13482065
申请日：2012-05-29
申请人： Kaifeng Zhang , Takenori Hirose , Masahiro Watanabe , Shinji Homma , Tsuneo Nakagomi , Teruaki Tokutomi , Toshihiko Nakata , Takehiro Tachizaki
发明人： Kaifeng Zhang , Takenori Hirose , Masahiro Watanabe , Shinji Homma , Tsuneo Nakagomi , Teruaki Tokutomi , Toshihiko Nakata , Takehiro Tachizaki
IPC分类号： G11B13/04
CPC分类号： G11B5/455 , G11B2005/0021
摘要： In a method and an apparatus for inspecting a thermally assisted magnetic recording head element, a specimen is mounted on a table movable in a plane of a scanning probe microscope device, evanescent light is generated from a portion of light emission of evanescent light of the specimen, scattered light of the evanescent light is detected by moving the table in the plane while a cantilever of the scanning probe microscope having a probe is vertically vibrated in the vicinity of a surface of the specimen, and an intensity distribution of the evanescent light emitted from the portion of light emission of evanescent light or a surface profile of the portion of light emission of evanescent light of the specimen is inspected using position information of generation of the evanescent light based on the detected scattered light.
摘要翻译： 在用于检查热辅助磁记录头元件的方法和装置中，将样本安装在可在扫描探针显微镜装置的平面中移动的台上，从所述样本的渐逝光的发光部分产生ev逝光 通过在平面中移动台来检测ev逝光的散射光，同时具有探针的扫描探针显微镜的悬臂在试样的表面附近垂直振动，并且从from射光发射的ev逝光的强度分布 使用基于检测到的散射光的ev逝光的产生的位置信息来检查ev逝光的发光部分或试样的ev逝光的发光部分的表面轮廓。
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9.发明授权公开(公告)号：US08483035B2
公开(公告)日：2013-07-09
申请号：US13482065
申请日：2012-05-29
申请人： Kaifeng Zhang , Takenori Hirose , Masahiro Watanabe , Shinji Homma , Tsuneo Nakagomi , Teruaki Tokutomi , Toshihiko Nakata , Takehiro Tachizaki
发明人： Kaifeng Zhang , Takenori Hirose , Masahiro Watanabe , Shinji Homma , Tsuneo Nakagomi , Teruaki Tokutomi , Toshihiko Nakata , Takehiro Tachizaki
CPC分类号： G11B5/455 , G11B2005/0021
摘要： In a method and an apparatus for inspecting a thermally assisted magnetic recording head element, a specimen is mounted on a table movable in a plane of a scanning probe microscope device, evanescent light is generated from a portion of light emission of evanescent light of the specimen, scattered light of the evanescent light is detected by moving the table in the plane while a cantilever of the scanning probe microscope having a probe is vertically vibrated in the vicinity of a surface of the specimen, and an intensity distribution of the evanescent light emitted from the portion of light emission of evanescent light or a surface profile of the portion of light emission of evanescent light of the specimen is inspected using position information of generation of the evanescent light based on the detected scattered light.
摘要翻译： 在用于检查热辅助磁记录头元件的方法和装置中，将样本安装在可在扫描探针显微镜装置的平面中移动的台上，从所述样本的渐逝光的发光部分产生ev逝光 通过在平面中移动台来检测ev逝光的散射光，同时具有探针的扫描探针显微镜的悬臂在试样的表面附近垂直振动，并且从from射光发射的ev逝光的强度分布 使用基于检测到的散射光的ev逝光的产生的位置信息来检查ev逝光的发光部分或试样的ev逝光的发光部分的表面轮廓。
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公开(公告)号：US5488857A
公开(公告)日：1996-02-06
申请号：US350034
申请日：1994-11-29
申请人： Shinji Homma , Kyoichi Mori , Takashi Nakakita
发明人： Shinji Homma , Kyoichi Mori , Takashi Nakakita
CPC分类号： G01N29/14
摘要： A protrusion sensor according to the present invention comprises a protrusion sensing head, a suspension spring having a front end portion fixedly mounting the protrusion sensing head and a rear end portion fixedly secured to one surface of a support arm, a carriage for supporting the support arm and a vibration sensor of piezo-electric ceramics fixedly mounted on the other surface of the support arm. A protrusion is detected by the collision of the protrusion sensing head flying by air flow on a surface of a rotary disc caused by rotation thereof with a protrusion.
摘要翻译： 根据本发明的突起传感器包括突起感测头，悬架弹簧，其具有固定地安装突起感测头的前端部分和固定地固定在支撑臂的一个表面上的后端部分，用于支撑支撑臂 以及固定地安装在支撑臂的另一个表面上的压电陶瓷的振动传感器。 通过由旋转盘的表面由突出部旋转引起的旋转盘的表面上的气流的突出感测头的碰撞来检测突起。
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