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:
Nov. 03, 1998
Filed:
May. 03, 1996
David R Seitz, Vandalia, OH (US);
Curtis Woods, Centerville, OH (US);
Ohio Electronic Engravers, Inc., Dayton, OH (US);
Abstract
A includes system and method for determining an actual volume measurement for an engraved area on a surface of a workpiece, such as a cylinder. The system and method is capable of capturing an image of an engraved area, determining a plurality of cross-section volumes for a plurality of cross-sectional areas using the image, and generating a plurality of volume values in response thereto. The system and method sum the volume for the plurality of cross-sectional areas to provide a total engraved area actual volume value. If necessary, the system and method causes an engraver to be adjusted during a set-up procedure or during real-time operation to ensure that the densities of the areas being engraved correspond to desired densities. A computer associated with the engraver utilizes an image to determine a stylus profile from which engraved area measurements can be determined. The computer further adjusts the engraved drive signal by applying a gamma correction curve if the actual measurements deviate from a desired measurement by more than a predetermined amount. The engraving system and method also adjusts the engraved drive signal to eliminate engraved areas having densities less than a predetermined amount in order to eliminate undesired 'scum dots' or engraved areas having a density less than, for example, three percent of maximum density.