Invention Grant
- Patent Title: Motion control method and apparatus for a flat bed scanner
- Patent Title (中): 平板扫描仪的运动控制方法和装置
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Application No.: US10957028Application Date: 2004-09-30
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Publication No.: US07843609B2Publication Date: 2010-11-30
- Inventor: Gregory D. Caster , Brian K. Owens , Donald N. Spitz
- Applicant: Gregory D. Caster , Brian K. Owens , Donald N. Spitz
- Applicant Address: US KY Lexington
- Assignee: Lexmark International, Inc.
- Current Assignee: Lexmark International, Inc.
- Current Assignee Address: US KY Lexington
- Agent Justin M. Tromp; John Victor Pezdek
- Main IPC: H04N1/04
- IPC: H04N1/04 ; H04N1/36

Abstract:
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.
Public/Granted literature
- US20060072179A1 Motion control method and apparatus for a flat bed scanner Public/Granted day:2006-04-06
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