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:
Jun. 26, 1990
Filed:
Jun. 06, 1989
Applicant:
Inventor:
Etienne L van Dorsselaer, Sintjansteen, NL;
Assignee:
Oce-Nederland B.V., Venlo, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358456 ; 358287 ;
Abstract
The entire dithered image to be enlarged/reduced is divided into contiguous relatively small areas, called input areas, and the pixel pattern of each input area is represented by (i) an average gray level characterized by a standard pixel pattern and (ii) the pixels deviating from the standard pattern. Every input area is imaged onto an output area according to the enlargement/reduction factor, whereby the output area is filled with a standard pixel pattern yielding the average gray level of the input area and extra pixels are added to the standard pattern for the deviating pixels of the input area on locations determined by linear transformation.