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. 29, 2005
Filed:
Jan. 08, 2002
Edward F. Scanlon, Enfield, CT (US);
Edward F. Scanlon, Enfield, CT (US);
Scan-Optics Inc., Manchester, CT (US);
Abstract
In a broad aspect of the invention, the master printed form is scanned and processed according to a forms definition program to produce a virtual form file comprising a virtual layout of the significant regions such as bubble targets of printed material on the form, on a virtual coordinate system. Production forms that have been marked by subjects (e.g., students, voters, survey respondents, etc.), are then scanned to produce a marked form file of gray scale darkness values for each marked form. The marked form file and the virtual form file, are compared and processed to determine the location and spatial relationships of the marks on the marked form, in relation to the virtual coordinate system of the virtual form. The raw scan of each marked form is also processed to determine whether darkened areas on the marked form image should be interpreted as intentional responses from the subject, at the virtual coordinates where targets are located on the virtual form.