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:
Jan. 07, 2003
Filed:
Apr. 18, 2000
Hideki Doumoto, Fuchu, JP;
Yuuki Watanabe, Tokyo, JP;
Other;
Abstract
The present invention provides a method of detecting the locations of right and left register marks respectively burned onto right- and left-hand side portions of a printing plate based upon image data of images respectively captured within an image processing area with right and left vertical edges respectively extending in the Y-direction, and upper and lower horizontal edges extending in the X-direction. The method includes detecting the center coordinates in the X-direction of the right and left register marks based upon the image data obtained from substantially the entire portion of the image data processing area; detecting the center coordinate in the Y-direction of the right register mark based upon the image data obtained from a right-hand side portion of the image data processing area extending up to at least the center coordinate in the X-direction of the right register mark; and detecting the center coordinate in the Y-direction of the left register mark based upon the image data obtained from a left-hand side portion of the image data processing area extending up to at least the center coordinate in the X-direction of the left register mark.