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1.发明授权公开(公告)号：US09466323B2
公开(公告)日：2016-10-11
申请号：US13155987
申请日：2011-06-08
申请人： Jun Fujii , Shintaro Tamura
发明人： Jun Fujii , Shintaro Tamura
CPC分类号： G11B5/84 , G11B5/024 , G11B5/455 , G11B20/1816 , G11B2020/1826 , G11B2220/2516
摘要： A method for moving magnetic heads in a magnetic recording/reproducing apparatus, which comprises the steps of writing high-frequency signals in the magnetic recording/reproducing tracks; and then, either (i) conducting DC erasing or AC erasing to inspect extra pulse signals reproduced from the erased tracks, or (ii) inspecting concurrently occurring signals of missing pulse and spike pulse, which are reproduced from the written signals, whereby minute protrusions on a surface of the tracks were detected. Reading and writing of information are conducted while the magnetic heads are moved in a manner controlled so that reading and writing of information in specific tracks having defects is avoided. This method enhances reliability and life of the magnetic recording/reproducing apparatus.
摘要翻译： 一种用于在磁记录/再现装置中移动磁头的方法，包括以下步骤：在磁记录/再现轨道中写入高频信号; 然后，（i）进行直流擦除或交流擦除，以检查从擦除的磁道再现的额外的脉冲信号，或（ii）检查从写入信号再现的同时出现的丢失脉冲和尖峰脉冲的信号，由此微小突起 检测到轨迹表面。 在磁头以受控的方式移动磁头的同时进行信息的读取和写入，从而避免了具有缺陷的特定轨迹中的信息的读取和写入。 该方法提高了磁记录/重放装置的可靠性和寿命。
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2.发明授权Optical surface defect inspection apparatus and optical surface defect inspection method 有权光学表面缺陷检查装置和光学表面缺陷检查方法公开(公告)号：US08547547B2
公开(公告)日：2013-10-01
申请号：US13213116
申请日：2011-08-19
IPC分类号： G01N21/00
CPC分类号： G01N21/00 , G01N21/8806 , G01N21/9501 , G01N21/9506 , G01N2201/0833
摘要： The present invention is to provide an optical surface defect inspection apparatus or an optical surface defect inspection method that can improve a signal-to-noise ratio according to a multi-segmented cell method without performing autofocus operations, and can implement highly sensitive inspection. The present invention is an optical surface defect inspection apparatus or an optical surface defect inspection method in which an inspection beam is applied onto a test subject, an image of a scattered light from the surface of the test subject is formed on a photo-detector, and a defect on the surface of the test subject is inspected based on an output from the photo-detector. The photo-detector has an optical fiber bundle. One end thereof forms a circular light receiving surface to receive the scattered light. The other end thereof is connected to a plurality of light receiving devices. The optical fiber bundle is divided into a plurality of fan-shaped cells in the light receiving surface, and connected to the light emitting devices in units of the cells for performing the inspection based on the outputs of the plurality of cells.
摘要翻译： 本发明提供一种光学表面缺陷检查装置或光学表面缺陷检查方法，其可以在不进行自动对焦操作的情况下，根据多分段单元法提高信噪比，并且可以实现高度敏感的检查。 本发明是一种光学表面缺陷检查装置或光学表面缺陷检查方法，其中将检查光束施加到测试对象上，在光检测器上形成来自受检者表面的散射光的图像， 并且基于光电检测器的输出来检查测试对象的表面上的缺陷。 光检测器具有光纤束。 其一端形成圆形光接收表面以接收散射光。 其另一端连接到多个光接收装置。 光纤束在光接收表面被分成多个扇形单元，并且以基于多个单元的输出执行检查的单元为单位连接到发光器件。
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3.发明申请OPTICAL SURFACE DEFECT INSPECTION APPARATUS AND OPTICAL SURFACE DEFECT INSPECTION METHOD 有权光学表面缺陷检查装置和光学表面缺陷检查方法公开(公告)号：US20120075625A1
公开(公告)日：2012-03-29
申请号：US13213116
申请日：2011-08-19
IPC分类号： G01N21/88
CPC分类号： G01N21/00 , G01N21/8806 , G01N21/9501 , G01N21/9506 , G01N2201/0833
摘要： The present invention is to provide an optical surface defect inspection apparatus or an optical surface defect inspection method that can improve a signal-to-noise ratio according to a multi-segmented cell method without performing autofocus operations, and can implement highly sensitive inspection. The present invention is an optical surface defect inspection apparatus or an optical surface defect inspection method in which an inspection beam is applied onto a test subject, an image of a scattered light from the surface of the test subject is formed on a photo-detector, and a defect on the surface of the test subject is inspected based on an output from the photo-detector. The photo-detector has an optical fiber bundle. One end thereof forms a circular light receiving surface to receive the scattered light. The other end thereof is connected to a plurality of light receiving devices. The optical fiber bundle is divided into a plurality of fan-shaped cells in the light receiving surface, and connected to the light emitting devices in units of the cells for performing the inspection based on the outputs of the plurality of cells.
摘要翻译： 本发明提供一种光学表面缺陷检查装置或光学表面缺陷检查方法，其可以在不进行自动对焦操作的情况下，根据多分段单元法提高信噪比，并且可以实现高度敏感的检查。 本发明是一种光学表面缺陷检查装置或光学表面缺陷检查方法，其中将检查光束施加到测试对象上，在光检测器上形成来自受检者表面的散射光的图像， 并且基于光电检测器的输出来检查测试对象的表面上的缺陷。 光检测器具有光纤束。 其一端形成圆形光接收表面以接收散射光。 其另一端连接到多个光接收装置。 光纤束在光接收表面被分成多个扇形单元，并且以基于多个单元的输出执行检查的单元为单位连接到发光器件。
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4.发明申请公开(公告)号：US20110310508A1
公开(公告)日：2011-12-22
申请号：US13155987
申请日：2011-06-08
申请人： Jun Fujii , Shintaro Tamura
发明人： Jun Fujii , Shintaro Tamura
CPC分类号： G11B5/84 , G11B5/024 , G11B5/455 , G11B20/1816 , G11B2020/1826 , G11B2220/2516
摘要： A method for moving magnetic heads in a magnetic recording/reproducing apparatus, which comprises the steps of writing high-frequency signals in the magnetic recording/reproducing tracks; and then, either (i) conducting DC erasing or AC erasing to inspect extra pulse signals reproduced from the erased tracks, or (ii) inspecting concurrently occurring signals of missing pulse and spike pulse, which are reproduced from the written signals, whereby minute protrusions on a surface of the tracks were detected. Reading and writing of information are conducted while the magnetic heads are moved in a manner controlled so that reading and writing of information in specific tracks having defects is avoided. This method enhances reliability and life of the magnetic recording/reproducing apparatus.
摘要翻译： 一种用于在磁记录/再现装置中移动磁头的方法，包括以下步骤：在磁记录/再现轨道中写入高频信号; 然后，（i）进行直流擦除或交流擦除，以检查从擦除的磁道再现的额外的脉冲信号，或（ii）检查从写入信号再现的同时出现的丢失脉冲和尖峰脉冲的信号，由此微小突起 检测到轨迹表面。 在磁头以受控的方式移动磁头的同时进行信息的读取和写入，从而避免了具有缺陷的特定轨迹中的信息的读取和写入。 该方法提高了磁记录/重放装置的可靠性和寿命。
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