Patent · US Active

Generating halftones

US10051153B1 · kind B1 · utility

2Cited by

4References

13Claims

0Family size

Assignee

HP INDIGO B.V. · NL

Inventors

Tal Frank · Nes Ziona, IL
Dror Kella · Rehovot, IL
Boaz Tagansky · Havana, US
Oren Haik · Nes Ziona, IL
Yotam Ben-Shoshan · Nes Ziona, IL
Marina Limonov · Nes Ziona, IL
Ram Dagan · Holon, IL

Key dates

Filing date	Feb 1, 2017
Grant date	Aug 14, 2018
Priority date	—
Expiry date	Feb 1, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH04N1/6058
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A halftone comprises a first halftone screen and a second halftone screen. The first halftone screen comprises a first plurality of amplitude modulated dots arranged according to a first plurality of rows, the first plurality of rows being orientated according to a first direction and comprising a first dot spacing. The second halftone screen comprises a second plurality of amplitude modulated dots arranged according to a second plurality of rows, the second plurality of row being orientated in a second direction and comprising a second dot spacing. The first direction and the second direction define an angle of 45 degrees or less and a ratio of the second dot spacing to the first dot spacing is less than one.

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