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:
Sep. 03, 2002
Filed:
Mar. 29, 1999
Applicant:
Inventor:
Mark R. Samworth, Wilmington, DE (US);
Assignee:
PCC Artwork Systems, Bristol, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 1/502 ; H04N 1/405 ;
U.S. Cl.
CPC ...
G06K 1/502 ; H04N 1/405 ;
Abstract
A method of producing a halftone screen having a plurality of halftone dots arrayed along a desired screen frequency. The method comprises: a) using variable size halftone dots arrayed along the screen frequency to reproduce shades of gray equal to and above a predetermined shade of gray, the predetermined shade of gray having a first halftone dot size; and b) reproducing shades of gray below the predetermined shade of gray using the first halftone dot size arrayed along the screen frequency by deleting a number of halftone dots per unit area to obtain gray shades below the predetermined shade of gray.