发明授权
- 专利标题: Motion control method and apparatus for a flat bed scanner
- 专利标题(中): 平板扫描仪的运动控制方法和装置
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申请号: US10957028申请日: 2004-09-30
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公开(公告)号: US07843609B2公开(公告)日: 2010-11-30
- 发明人: Gregory D. Caster , Brian K. Owens , Donald N. Spitz
- 申请人: Gregory D. Caster , Brian K. Owens , Donald N. Spitz
- 申请人地址: US KY Lexington
- 专利权人: Lexmark International, Inc.
- 当前专利权人: Lexmark International, Inc.
- 当前专利权人地址: US KY Lexington
- 代理商 Justin M. Tromp; John Victor Pezdek
- 主分类号: H04N1/04
- IPC分类号: H04N1/04 ; H04N1/36
摘要:
A method of scanning a target image and inhibiting backtrack artifacts from the scanned image comprises the steps of initiating a scan on a flat bed scanner, the flat bed scanner comprising at least a scanbar, a memory buffer and a motion control pattern comprised of a plurality of spaced elements, each element having an angled portion with respect to the motion of the scanbar; acquiring scan data comprising a motion control pattern data and an image data with said scanbar; storing the previously acquired scan data in a memory buffer; querying whether the memory buffer reaches a preselected full threshold; acquiring a last valid scan data; stopping and backtracking the scanbar when the memory buffer preselected full threshold is met; and, inhibiting backtrack artifacts by one of a first real-time position analysis or a post-processing analysis.