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. 08, 1991
Filed:
Jan. 31, 1989
Applicant:
Inventor:
Joseph S Shu, White Plains, NY (US);
Assignee:
Nynex Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358429 ; 358448 ; 358455 ;
Abstract
A practice for producing a halftone reproduction wherein a predetermined screen function is used to process the gray levels of the scanned original and wherein the halftone reproduction is made capable of exhibiting gray levels over the entire gray tone range of 0 (black) to 255 (white) by selecting the screen frequency in the screen direction so as to result in a screen frequency in the print direction which is other than a sub-multiple of the print frequency.
Shu, Joseph. (1991). Halftone reproduction with enhanced gray level reproducibility (U.S. Patent No. 4984097). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4984097
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile