Invention Grant
- Patent Title: Detection of roller eccentricity in a scanner
- Patent Title (中): 检测扫描仪中的辊偏心率
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Application No.: US12843514Application Date: 2010-07-26
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Publication No.: US08355160B2Publication Date: 2013-01-15
- Inventor: Miguel Angel Lopez
- Applicant: Miguel Angel Lopez
- Applicant Address: US TX Houston
- Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee: Hewlett-Packard Development Company, L.P.
- Current Assignee Address: US TX Houston
- Agent Steven L. Webb
- Main IPC: H04N1/028
- IPC: H04N1/028 ; H04N1/047 ; H04N1/48 ; H04N1/56 ; H04N1/12 ; H04N1/409 ; H04N1/58
Abstract:
A method and apparatus for detecting roller eccentricity in a CIS scanner is disclosed. An image of a target is captured using the CIS scanner. The image of the target is analyzed for periodic horizontal banding. The period of the periodic horizontal banding is compared with the circumference of a pressure roller in the CIS scanner. When the period matches with the circumference of the pressure roller, an error is set.
Public/Granted literature
- US20120019870A1 Detection Of Roller Eccentricity In A Scanner Public/Granted day:2012-01-26
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