The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 01, 2001
Filed:
Feb. 26, 1999
Philip A. Lodwick, Richfield, MN (US);
Nicholas J. G. Hartzel, Jr., St. Paul, MN (US);
Electronics for Imaging, Inc., Foster City, CA (US);
Abstract
A system for automatic margin alignment for digital document processors. An output device is calibrated to graphics software without requiring the user to input offset information. The user need only print out first and second calibration sheets, overlay the first sheet on the second, and scan in the overlaid sheets. Margin marks such as vertical and horizontal lines on the first calibrating sheet signal the location of the respective horizontal and vertical margins. The edge of the first calibration sheet contrasts with the second calibration sheet to enable the scanner to detect the edge. Software calculates the required (x,y) offsets based on the number of scanning pixels between the edge of the first calibration sheet and the margin marks, and the resolution of the scanner. A rotational mis-calibration of the output device may also be calculated.