Patent · US Expired

Method of optimizing the reproduction of a picture copy through minimization of elementary halftone cell overlap

US5687005A · kind A · utility

3Cited by

9References

13Claims

0Family size

Assignee

Heidelberger Druckmaschinen AG · DE

Inventors

Gerhard Fischer · Offenbach, DE
Marcel Kiessling · Nuremberg, DE
Wolfgang Pfizenmaier · Neckargemünd, DE

Key dates

Filing date	Nov 14, 1994
Grant date	Nov 11, 1997
Priority date	—
Expiry date	Nov 14, 2014

Classification

Technology area (CPC H)Electricity
CPC primaryH04N2201/0458
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Method of optimizing a reproduction of a picture copy includes scanning a picture copy optoelectrically for generating scanning signals, in accordance with the scanning signals, electronically screening the picture copy and inscribing a recording medium so that one of a plurality of screen fields on the recording medium corresponds to one or more scanning signals of the picture copy, forming each of the screen fields, respectively, of a plurality of elementary cells, and determining relative locations of the elementary cells so that a region of overlap between an inscribed and an adjacent non-inscribed elementary cell, respectively, is minimal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.