Patent №
US 7,986,459
Granted
2011-07-26
Filed 2008
Owner
GIESECKE & DEVRIENT GMBH
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
11995228
The present invention relates to a grating image (12) for depicting at least one unscreened halftone image having multiple brightness levels, the grating image exhibiting multiple grating fields (22-1, 22-2, 22-3) that include in each case an electromagnetic-radiation-influencing grating pattern composed of a plurality of grating lines and that, when illuminated, produce in each case an areal region of the halftone image having the same brightness level.
AI classification
Ownership
GIESECKE & DEVRIENT GMBH
assignment · 209140276
Assignors
KAULE, WITTICH, DICHTL, MARIUS
On an employer assignment, the assignors are typically the inventors.