发明授权
US5367515A Optical recording/reproducing by reducing laser power when there is a
track jump
失效
当有轨道跳跃时，通过降低激光功率进行光学记录/再现
- 专利标题： Optical recording/reproducing by reducing laser power when there is a track jump
- 专利标题（中）： 当有轨道跳跃时，通过降低激光功率进行光学记录/再现
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申请号： US874089申请日： 1992-04-27
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公开(公告)号： US5367515A公开(公告)日： 1994-11-22
- 发明人: Koichi Yamazaki , Eiichi Nakamura
- 申请人： Koichi Yamazaki , Eiichi Nakamura
- 申请人地址： JPX Tokyo
- 专利权人： Nippon Conlux Co., Ltd.
- 当前专利权人： Nippon Conlux Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX3-100218 19910501
- 主分类号： G11B7/00
- IPC分类号： G11B7/00 ; G11B7/0033 ; G11B7/004 ; G11B7/0045 ; G11B7/005 ; G11B7/085 ; G11B7/125
摘要：
An optical information recording and reproduction apparatus that correctly performs tracking control even when there is a step in the information recording surface in an apparatus that records and reproduces information to and from an information recording medium such as an optical card or the like. An optical information recording and reproduction apparatus which focusses a light spot from a laser onto an optical information recording medium which has a tracking track and performs the recording and reproduction of information to required positions using the tracking track as a reference. The apparatus reduces the optical output of the laser when track jumping and seeking when there is an information reproduction operation.
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