发明授权
- 专利标题： Shading correction system for use with an optical scanner
- 专利标题（中）： 遮光校正系统，用于光学扫描仪
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申请号： US514756申请日： 1990-04-26
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公开(公告)号： US5036186A公开(公告)日： 1991-07-30
- 发明人: Chyi Tsao
- 申请人： Chyi Tsao
- 申请人地址： TWX Taipei, Taiwan
- 专利权人： ACER Incorporated
- 当前专利权人： ACER Incorporated
- 当前专利权人地址： TWX Taipei, Taiwan
- 主分类号： H04N1/401
- IPC分类号： H04N1/401
摘要：
An improved shading correction system is disclosed where the light intensity variations of the light sources are sensed and are fed back to the shading correction system for improved shading correction. Such feedback action may be applied both during the recording of shading profile reference values when a reference target is scanned and for shading correction when the actual target is scanned.
公开/授权文献
- US4770294A Two-piece beverage carrier 公开/授权日：1988-09-13
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