Inventor · disambiguated record
Roger D. Hersch
Also filed as: HERSCH ROGER D · HERSCH ROGER DAVID
37 granted patents·4 pending applications·1,238 citations·filing 1993–2023
98Inventor score
Files withECOLE POLYTECH17HERSCH ROGER D8ROSSIER ROMAIN3ECOLE POLYTECHNIQUE FED LAUSANNE EPFL2ECOLE POLYTECHNIQUE LAUSANNE2
Top patents by PatentIndex Score
41 records- 0196US7305105B2Authentication of secure items by shape level linesECOLE POLYTECH·Filed 2005·Granted Dec 4, 2007·32 cites·51 claims
- 0295US9497356B1Color reproduction, pattern hiding and image alternations with halftone prints on metalHERSCH ROGER D·Filed 2015·Granted Nov 15, 2016·18 cites·23 claims
- 0395US7751608B2Model-based synthesis of band moire images for authenticating security documents and valuable productsECOLE POLYTECH·Filed 2004·Granted Jul 6, 2010·51 cites·49 claims
- 0495US6819775B2Authentication of documents and valuable articles by using moire intensity profilesECOLE POLYTECH·Filed 2001·Granted Nov 16, 2004·76 cites·62 claims
- 0594US10628647B1Authentication and tracking by hidden codesROSSIER ROMAIN·Filed 2019·Granted Apr 21, 2020·16 cites·33 claims
- 0694US8351087B2Authentication with built-in encryption by using moire parallax effects between fixed correlated s-random layersECOLE POLYTECH·Filed 2009·Granted Jan 8, 2013·17 cites·34 claims
- 0794US7252360B2Ink thickness variations for the control of color printersECOLE POLYTECH·Filed 2005·Granted Aug 7, 2007·31 cites·19 claims
- 0894US7194105B2Authentication of documents and articles by moiré patternsHERSCH ROGER D·Filed 2002·Granted Mar 20, 2007·139 cites·24 claims
- 0993US7710551B2Model-based synthesis of band moire images for authentication purposesECOLE POLYTECH·Filed 2006·Granted May 4, 2010·13 cites·44 claims
- 1091US8085438B2Printing color images visible under UV light on security documents and valuable articlesHERSCH ROGER D·Filed 2007·Granted Dec 27, 2011·28 cites·14 claims
- 1191US5995638AMethods and apparatus for authentication of documents by using the intensity profile of moire patternsECOLE POLYTECH·Filed 1996·Granted Nov 30, 1999·195 cites·27 claims
- 1290US7054038B1Method and apparatus for generating digital halftone images by multi color ditheringECOLE POLYTECH·Filed 2000·Granted May 30, 2006·50 cites·16 claims
- 1389US10286716B2Synthesis of superposition shape images by light interacting with layers of lensletsHERSCH ROGER D·Filed 2015·Granted May 14, 2019·8 cites·12 claims
- 1489US7027660B2Images incorporating microstructuresECOLE POLYTECH·Filed 2002·Granted Apr 11, 2006·62 cites·32 claims
- 1588US8610958B2Synthesis of authenticable color multi-halftone imagesROSSIER ROMAIN·Filed 2012·Granted Dec 17, 2013·13 cites·17 claims
- 1688US7295717B2Synthesis of superposition images for watches, valuable articles and publicityECOLE POLYTECH·Filed 2006·Granted Nov 13, 2007·20 cites·30 claims
- 1787US8355169B2Synthesis of authenticable luminescent color halftone imagesECOLE POLYTECH·Filed 2010·Granted Jan 15, 2013·10 cites·30 claims
- 1884US7491424B2Reproduction of security documents and color images with metallic inksECOLE POLYTECH·Filed 2003·Granted Feb 17, 2009·21 cites·4 claims
- 1984US7423778B2Prediction model for color separation, calibration and control of printersECOLE POLYTECH·Filed 2003·Granted Sep 9, 2008·30 cites·6 claims
- 2084USRE38410EMethod and apparatus for a parallel data storage and processing serverAXS TECHNOLOGIES INC·Filed 2000·Granted Jan 27, 2004·60 cites·30 claims
- 2184US6249588B1Method and apparatus for authentication of documents by using the intensity profile of moire patternsECOLE POLYTECH·Filed 1995·Granted Jun 19, 2001·96 cites·40 claims
- 2282US9085190B2Synthesis of authenticable halftone images with non-luminescent halftones illuminated by an adjustable luminescent emissive layerANDRES JULIEN·Filed 2012·Granted Jul 21, 2015·15 cites·25 claims
- 2381US11351810B2Synthesis of moving and beating moiré shapesWALGER THOMAS·Filed 2020·Granted Jun 7, 2022·2 cites·21 claims
- 2481US9531914B1Color changing effects with cross-halftone prints on metalHERSCH ROGER D·Filed 2015·Granted Dec 27, 2016·4 cites·20 claims
- 2578US6198545B1Method and apparatus for generating halftone images by evolutionary screen dot contoursFiled 1995·Granted Mar 6, 2001·65 cites·21 claims
- 2673US10899161B2Synthesis of superpostion shape images by light interacting with superposed layers of lenslet gratingsECOLE POLYTECHNIQUE FED LAUSANNE EPFL·Filed 2016·Granted Jan 26, 2021·1 cites·20 claims
- 2771US5737549AMethod and apparatus for a parallel data storage and processing serverECOLE POLYTECHNIQUE LAUSANNE·Filed 1994·Granted Apr 7, 1998·65 cites·30 claims
- 2871US5422742AMethod and apparatus for generating halftone images by discrete one-to-one dither tile rotationFiled 1993·Granted Jun 6, 1995·34 cites·16 claims
- 2965US5768490AMethod for producing visually evenly spaced typographic charactersECOLE POLYTECH·Filed 1996·Granted Jun 16, 1998·35 cites·7 claims
- 3062US12008423B2Two-dimensional codes hidden as scattered line segmentsHERSCH ROGER D·Filed 2022·Granted Jun 11, 2024·0 cites·26 claims
- 3159US5796409AMethod for producing contrast-controlled grayscale charactersECOLE POLYTECHNIQUE LAUSANNE·Filed 1993·Granted Aug 18, 1998·27 cites·4 claims
- 3258US11186112B1Synthesis of curved surface moiréHERSCH ROGER D·Filed 2020·Granted Nov 30, 2021·0 cites·18 claims
- 3357US9876931B2Color changing effects with cross-halftone printsPJANIC PETAR·Filed 2016·Granted Jan 23, 2018·1 cites·16 claims
- 3454US7623739B2Method and computing system for creating and displaying images with animated microstructuresECOLE POLYTECH·Filed 2001·Granted Nov 24, 2009·3 cites·17 claims
- 3553US2008055355A1Replicated multi-channel sensors for decucing ink thicknesses in color printing devicesECOLE POLYTECH·Filed 2007·Application pending·0 cites
- 3651US11968345B1Juxtaposed clustered dispersed dot halftoningROSSIER ROMAIN·Filed 2023·Granted Apr 23, 2024·0 cites·12 claims
- 3742US2003021437A1Images and security documents protected by micro-structuresFiled 2001·Application pending·0 cites
- 3837US2013181435A1Synthesis of authenticable halftone images with non-luminescent halftones illuminated by a luminescent emissive layerHERSCH ROGER D·Filed 2012·Application pending·0 cites
- 3936US12128701B2Fabrication of moiré on curved surfacesBABAEI VAHID·Filed 2021·Granted Oct 29, 2024·0 cites·8 claims
- 4036US10593125B22D-3D sculpture paintingsARPA SAMI·Filed 2018·Granted Mar 17, 2020·0 cites·22 claims
- 4136US2019297298A1Synthetic electronic video containing a hidden imageECOLE POLYTECHNIQUE FED LAUSANNE EPFL·Filed 2018·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →