Inventor

HERSCH ROGER DAVID

CH5 patents

⚠️ This page may combine multiple inventors who share the name “HERSCH ROGER DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ECOLE POLYTECH

3 patents

US7491424B2Feb 17, 2009

(unassigned)

1 patent

US5422742AJun 6, 1995

Method and apparatus for generating halftone images by discrete one-to-one dither tile rotation

34 citations86

ECOLE POLYTECHNIQUE FED LAUSANNE EPFL

1 patent

US10899161B2Jan 26, 2021

Synthesis of superpostion shape images by light interacting with superposed layers of lenslet gratings

ECOLE POLYTECHNIQUE FED LAUSANNE EPFL1 citations55

HERSCH ROGER DAVID

ECOLE POLYTECH

Reproduction of security documents and color images with metallic inks

Prediction model for color separation, calibration and control of printers

Images incorporating microstructures

(unassigned)

Method and apparatus for generating halftone images by discrete one-to-one dither tile rotation

ECOLE POLYTECHNIQUE FED LAUSANNE EPFL

Synthesis of superpostion shape images by light interacting with superposed layers of lenslet gratings