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    • 38. 发明授权
    • Magneto-optical disk apparatus having an adjustment mechanism for setting the position of magnetic heads
    • 具有用于设定磁头位置的调整机构的磁光盘装置
    • US06404705B1
    • 2002-06-11
    • US09042020
    • 1998-03-13
    • Hitoshi WatanabeNorio OhtaMasashi Suenaga
    • Hitoshi WatanabeNorio OhtaMasashi Suenaga
    • G11B1100
    • G11B11/10573G11B11/10541G11B11/10595
    • A magneto-optical disk apparatus and an adjustment method of a head mechanism are provided for strictly and quickly adjusting a setting position of a magnetic head with respect to an optical axis of an optical head. The adjustment method is executed by the following steps. A magnetic super resolution type magneto-optical disk is mounted to the magneto-optical disk apparatus provided with the optical head and the magnetic head. Then, an external magnetic field from the magnetic head is applied onto the magneto-optical disk as applying a laser beam of a reproduction level onto the magneto-optical disk. Then, a reproduction signal output read from the magneto-optical disk is detected concurrently with the application of the external magnetic field. Next, a fine adjustment mechanism is operated so that the reproduction signal output is made maximum with respect to the direction of the external magnetic field, for the purpose of sequentially changing a setting position of the magnetic head with respect of the optical axis of the optical head.
    • 提供一种磁光盘装置和头机构的调整方法,用于严格且快速地调整磁头相对于光学头的光轴的设定位置。 调整方法通过以下步骤执行。 磁性超分辨率型磁光盘被安装到设置有光头和磁头的磁光盘装置上。 然后,将磁头上的外部磁场施加到磁光盘上,将再现电平的激光束施加到磁光盘上。 然后,与外部磁场的施加同时检测从磁光盘读出的再现信号。 接下来,为了顺序地改变磁头相对于光学的光轴的设置位置的目的,操作微调机构使得再现信号输出相对于外部磁场的方向成为最大值 头。
    • 40. 发明授权
    • Reflection type image reader having an original positioning sheet
    • 具有原始定位片的反射型图像读取器
    • US06208438B1
    • 2001-03-27
    • US09075332
    • 1998-05-11
    • Hitoshi WatanabeHiroshi Hanzawa
    • Hitoshi WatanabeHiroshi Hanzawa
    • H04N104
    • H04N1/00795H04N1/10H04N2201/0422
    • In a reflection type image reader having a stage glass on which an original is placed with its image facing downward to be read out by a photoelectric image reading head from the lower side so as to be converted into an electric signal, in order to make it, easy to position the original relative to the stage glass, an original positioning sheet, bearing an original positioning reference mark is placed on the stage glass in a fixed positional relationship thereto, with the original being placed between the stage glass and the original positioning sheet with its image facing downward, while a light source for original positioning is provided below the stage glass to illuminate the original from its front side, so that the image observable by the light passed through the original is referred to against the reference mark of the original positioning sheet.
    • 在具有阶梯玻璃的反射型图像读取器中,其上放置原稿的图像朝下,由下侧由光电图像读取头读出,以便将其转换为电信号,以使其成为 相对于平台玻璃容易定位原稿,将原稿定位片以原来的定位基准标记以固定的位置关系放置在舞台玻璃上,原稿放置在舞台玻璃与原始定位片之间 其图像面向下,同时用于原始定位的光源设置在舞台玻璃下方,以从其前侧照亮原稿,使得通过原稿的光可以观察到的图像与原件的参考标记 定位片。