发明授权
- 专利标题: Optical recording element and driving system
- 专利标题(中): 光学记录元件和驱动系统
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申请号: US394750申请日: 1989-08-16
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公开(公告)号: US5170390A公开(公告)日: 1992-12-08
- 发明人: Kenji Ohta , Tetsuya Inui , Hiroyuki Katayama , Akira Takahashi , Junji Hirokane , Yukinori Nishitani , Michinobu Mieda , Kazuo Van
- 申请人: Kenji Ohta , Tetsuya Inui , Hiroyuki Katayama , Akira Takahashi , Junji Hirokane , Yukinori Nishitani , Michinobu Mieda , Kazuo Van
- 申请人地址: JPX Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JPX Osaka
- 优先权: JPX63-208623 19880822; JPX63-274096 19881028; JPX63-330955 19881227; JPX1-40591 19890221
- 主分类号: G11B7/0045
- IPC分类号: G11B7/0045 ; G11B7/013 ; G11B7/09 ; G11B7/125 ; G11B7/24 ; G11B7/24085 ; G11B11/105 ; G11B19/02
摘要:
An optical recording element comprising a recording medium which includes an information recording area formed at every unit in a non-continuous condition, the recording medium further including sample pits disposed at intervals of a fixed distance for providing basic information about the locations of recording units in the same track. Each sample pit comprises a plurality of pits disposed next to the sequence of the recording units so that the spacing between the pits differs from the spacing between the recording units. At least one of the plurality of pits is a long-sized inclined pit which is inclined at an angle in the range of 6.degree. to 80.degree. to a recording track. A driving system for driving the optical recording element for recording information in the non-continuous recording area or erasing information stored therein with a light beam the output of which is varied as required and checking whether said recording or erasing has been correctly performed, within a very short time in which the light beam passes through the non-continuous recording area. By using the optical recording element in combination with its driving system, the processing speed for reducing, erasing and verifying these functions can be greatly improved and the irradiating position of the light beam at every recording unit can be correctly controlled.
公开/授权文献
- US5525724A Process for the preparation of chloropyrimidines 公开/授权日:1996-06-11
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