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:
Jul. 17, 1990
Filed:
Sep. 06, 1988
Applicant:
Inventor:
Joseph S Shu, White Plains, NY (US);
Assignee:
Nynex Corporation, White Plains, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358455 ; 358454 ; 358456 ;
Abstract
Reproduction of an original containing screened artwork is accomplished by selecting the scanning frequency to have a predetermined relationship to the screen frequency of the artwork and by utilizing adaptive thresholding methodology to convert the scanned digital signals to processed binary signals which are such as to result in the average gray levels over corresponding arrays of binary signals and digital signals being approximately equal.
Shu, Joseph. (1990). Reproduction of halftone original with moire reduction and tone (U.S. Patent No. 4942480). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4942480
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile