发明申请
- 专利标题： Sensing media speed
- 专利标题（中）： 感应媒体速度
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申请号： US10661189申请日： 2003-09-12
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公开(公告)号： US20050058042A1公开(公告)日： 2005-03-17
- 发明人: Darwin Hanks , Andrew Van Brocklin
- 申请人： Darwin Hanks , Andrew Van Brocklin
- 主分类号： G11B19/28
- IPC分类号： G11B19/28 ; G11B7/00
摘要：
A method of using electromagnetic radiation to control exposure of media to electromagnetic radiation is presented. The method includes rotating the media and sensing a frequency of electromagnetic radiation radiating from a rim of the media with a stationary detector. Exposure of the media to electromagnetic radiation with a movable source is controlled with the sensed frequency to provide increased accuracy.
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