Inventor · disambiguated record
Hugh L. Brunk
Also filed as: BRUNK HUGH · BRUNK HUGH L
72 granted patents·18 pending applications·3,094 citations·filing 1999–2025
99Inventor score
Top patents by PatentIndex Score
90 records- 0199US9593982B2Sensor-synchronized spectrally-structured-light imagingDIGIMARC CORP·Filed 2014·Granted Mar 14, 2017·53 cites·27 claims
- 0299US7986807B2Signal embedding and detection using circular structures in a transform domain of a media signalDIGIMARC CORP·Filed 2008·Granted Jul 26, 2011·107 cites·24 claims
- 0399US7289643B2Method, apparatus and programs for generating and utilizing content signaturesDIGIMARC CORP·Filed 2001·Granted Oct 30, 2007·442 cites·28 claims
- 0499US6683966B1Watermarking recursive hashes into frequency domain regionsDIGIMARC CORP·Filed 2000·Granted Jan 27, 2004·233 cites·20 claims
- 0599US6608911B2Digitally watermaking holograms for use with smart cardsDIGIMARC CORP·Filed 2001·Granted Aug 19, 2003·155 cites·21 claims
- 0698US8051295B2Benchmarks for digital watermarkingDIGIMARC CORP·Filed 2009·Granted Nov 1, 2011·43 cites·42 claims
- 0798US6694041B1Halftone watermarking and related applicationsDIGIMARC CORP·Filed 2000·Granted Feb 17, 2004·158 cites·32 claims
- 0898US6483927B2Synchronizing readers of hidden auxiliary data in quantization-based data hiding schemesDIGIMARC CORP·Filed 2001·Granted Nov 19, 2002·118 cites·33 claims
- 0997US7930546B2Methods, systems, and sub-combinations useful in media identificationDIGIMARC CORP·Filed 2007·Granted Apr 19, 2011·111 cites·75 claims
- 1097US7656930B2Assessing quality of service using digital watermark informationDIGIMARC CORP·Filed 2007·Granted Feb 2, 2010·42 cites·4 claims
- 1197US7286685B2Halftone watermarking and related applicationsPITNEY BOWES INC·Filed 2006·Granted Oct 23, 2007·73 cites·9 claims
- 1297US7054461B2Authenticating printed objects using digital watermarks associated with multidimensional quality metricsDIGIMARC CORP·Filed 2002·Granted May 30, 2006·207 cites·40 claims
- 1397US6993154B2Measuring digital watermark strength using error correction coding metricsDIGIMARC CORP·Filed 2004·Granted Jan 31, 2006·123 cites·11 claims
- 1497US6580809B2Quantization-based data hiding employing calibration and locally adaptive quantizationDIGIMARC CORP·Filed 2002·Granted Jun 17, 2003·95 cites·17 claims
- 1596US11062108B2Generating and reading optical codes with variable density to adapt for visual quality and reliabilityDIGIMARC CORP·Filed 2019·Granted Jul 13, 2021·13 cites·21 claims
- 1696US10498941B2Sensor-synchronized spectrally-structured-light imagingDIGIMARC CORP·Filed 2018·Granted Dec 3, 2019·9 cites·20 claims
- 1796US10113910B2Sensor-synchronized spectrally-structured-light imagingDIGIMARC CORP·Filed 2015·Granted Oct 30, 2018·32 cites·16 claims
- 1896US6882737B2Digitally watermarking holograms for identity documentsDIGIMARC CORP·Filed 2003·Granted Apr 19, 2005·83 cites·39 claims
- 1996US6760464B2Halftone watermarking and related applicationsDIGIMARC CORP·Filed 2001·Granted Jul 6, 2004·72 cites·7 claims
- 2095US8144368B2Automated methods for distinguishing copies from original printed objectsRODRIGUEZ TONY F·Filed 2003·Granted Mar 27, 2012·86 cites·24 claims
- 2195US6782115B2Watermark hologramsDIGIMARC CORP·Filed 2002·Granted Aug 24, 2004·78 cites·50 claims
- 2294US7711564B2Connected audio and other media objectsDIGIMARC CORP·Filed 2002·Granted May 4, 2010·127 cites·45 claims
- 2393US7607016B2Including a metric in a digital watermark for media authenticationDIGIMARC CORP·Filed 2001·Granted Oct 20, 2009·64 cites·35 claims
- 2493US7020349B2Halftone watermarking and related applicationsDIGIMARC CORP·Filed 2004·Granted Mar 28, 2006·50 cites·13 claims
- 2593US6533385B1Method for determining a printer's signature and the number of dots per inch printed in a document to provide proof that the printer printed a particular documentPITNEY BOWES INC·Filed 2001·Granted Mar 18, 2003·50 cites·7 claims
- 2692US10902539B2Learning systems and methodsDIGIMARC CORP·Filed 2017·Granted Jan 26, 2021·7 cites·20 claims
- 2792US9891883B2Methods and system for cue detection from audio input, low-power data processing and related arrangementsDIGIMARC CORP·Filed 2016·Granted Feb 13, 2018·10 cites·19 claims
- 2892US7983185B2Systems and methods for space-time determinations with reduced network trafficZULUTIME LLC·Filed 2009·Granted Jul 19, 2011·26 cites·18 claims
- 2992US7277468B2Measuring quality of service of broadcast multimedia signals using digital watermark analysesDIGIMARC CORP·Filed 2001·Granted Oct 2, 2007·80 cites·17 claims
- 3092US6993149B2Embedding digital watermarks in spot colorsDIGIMARC CORP·Filed 2001·Granted Jan 31, 2006·66 cites·28 claims
- 3191US8140848B2Digital watermark key generationBRUNDAGE TRENT J·Filed 2005·Granted Mar 20, 2012·16 cites·11 claims
- 3291US8130811B2Assessing quality of service using digital watermark informationTIAN JUN·Filed 2010·Granted Mar 6, 2012·10 cites·17 claims
- 3391US7246239B2Digital watermarks for checking authenticity of printed objectsDIGIMARC CORP·Filed 2001·Granted Jul 17, 2007·49 cites·16 claims
- 3490US8488836B2Methods, apparatus and programs for generating and utilizing content signaturesBRUNK HUGH L·Filed 2008·Granted Jul 16, 2013·23 cites·20 claims
- 3589US9414239B2Space time calibration for networks using state model of node clock parametersBRUNK HUGH L·Filed 2012·Granted Aug 9, 2016·17 cites·19 claims
- 3688US8023773B2Methods, apparatus and programs for generating and utilizing content signaturesDIGIMARC CORP·Filed 2006·Granted Sep 20, 2011·17 cites·27 claims
- 3784US11962875B2Recycling methods and systems, and related plastic containersDIGIMARC CORP·Filed 2021·Granted Apr 16, 2024·1 cites·20 claims
- 3883US11710020B2Laser marking of machine-readable codesDIGIMARC CORP·Filed 2021·Granted Jul 25, 2023·1 cites·25 claims
- 3982US7454033B2Quantization-based data hiding employing calibration and locally adaptive quantizationDIGIMARC CORP·Filed 2002·Granted Nov 18, 2008·13 cites·15 claims
- 4081US8421675B2Systems and methods for locating a mobile device within a cellular systemRHOADS GEOFFREY B·Filed 2009·Granted Apr 16, 2013·9 cites·16 claims
- 4181US6366680B1Adjusting an electronic camera to acquire a watermarked imageDIGIMARC CORP·Filed 1999·Granted Apr 2, 2002·64 cites·19 claims
- 4280US2024364983A1Recycling methods and systems, and related plastic containersDIGIMARC CORP·Filed 2024·Application pending·0 cites
- 4380US2023325960A1Neural network tracing arrangementsDIGIMARC CORP·Filed 2023·Application pending·0 cites
- 4478US2025259257A1Learning systems and methodsDIGIMARC CORP·Filed 2025·Application pending·0 cites
- 4577US12412228B2Learning systems and methodsDIGIMARC CORP·Filed 2022·Granted Sep 9, 2025·0 cites·17 claims
- 4677US12348840B2Recycling methods and systems, and related plastic containersDIGIMARC CORP·Filed 2024·Granted Jul 1, 2025·0 cites·18 claims
- 4777US10459685B2Methods and system for cue detection from audio input, low-power data processing and related arrangementsDIGIMARC CORP·Filed 2018·Granted Oct 29, 2019·2 cites·29 claims
- 4877US9083511B2Message key generationDIGIMARC CORP·Filed 2013·Granted Jul 14, 2015·2 cites·15 claims
- 4977US8006092B2Digital watermarks for checking authenticity of printed objectsDIGIMARC CORP·Filed 2007·Granted Aug 23, 2011·7 cites·12 claims
- 5076US8600053B2Message key generationBRUNDAGE TRENT J·Filed 2011·Granted Dec 3, 2013·2 cites·22 claims
Showing the top 50 of 90 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →