Inventor · disambiguated record
Ravi K. Sharma
Also filed as: SHARMA RAVI · SHARMA RAVI K · SHARMA RAVI KUMAR
163 granted patents·28 pending applications·6,089 citations·filing 1998–2025
99Inventor score
Files withDIGIMARC CORP128VERIZON PATENT & LICENSING INC15SHARMA RAVI K13RODRIGUEZ TONY F6REED ALASTAIR M3
Top patents by PatentIndex Score
191 records- 0199US10543711B2Authenticating identification and security documents and other objectsDIGIMARC CORP·Filed 2017·Granted Jan 28, 2020·15 cites·25 claims
- 0299US9087376B2Authenticating identification and security documents and other objectsRODRIGUEZ TONY F·Filed 2012·Granted Jul 21, 2015·43 cites·31 claims
- 0399US8194919B2Authenticating identification and security documentsRODRIGUEZ TONY F·Filed 2010·Granted Jun 5, 2012·51 cites·12 claims
- 0499US7986807B2Signal 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
- 0599US7657058B2Watermark orientation signals conveying payload dataDIGIMARC CORP·Filed 2005·Granted Feb 2, 2010·179 cites·6 claims
- 0699US6385329B1Wavelet domain watermarksDIGIMARC CORP·Filed 2000·Granted May 7, 2002·533 cites·27 claims
- 0798US11599744B2Image processing arrangementsDIGIMARC CORP·Filed 2020·Granted Mar 7, 2023·10 cites·25 claims
- 0898US10664722B1Image processing arrangementsDIGIMARC CORP·Filed 2017·Granted May 26, 2020·159 cites·26 claims
- 0998US10236006B1Digital watermarks adapted to compensate for time scaling, pitch shifting and mixingDIGIMARC CORP·Filed 2017·Granted Mar 19, 2019·105 cites·20 claims
- 1098US9990565B2Methods for object recognition and related arrangementsDIGIMARC CORP·Filed 2016·Granted Jun 5, 2018·119 cites·32 claims
- 1198US9635378B2Sparse modulation for robust signaling and synchronizationDIGIMARC CORP·Filed 2015·Granted Apr 25, 2017·103 cites·34 claims
- 1298US9269022B2Methods for object recognition and related arrangementsDIGIMARC CORP·Filed 2014·Granted Feb 23, 2016·215 cites·32 claims
- 1398US9182778B2Signal processors and methods for estimating transformations between signals with least squaresSHARMA RAVI K·Filed 2011·Granted Nov 10, 2015·73 cites·32 claims
- 1498US8300884B2Combined watermarking and fingerprintingSHARMA RAVI K·Filed 2010·Granted Oct 30, 2012·46 cites·24 claims
- 1598US7502759B2Digital watermarking methods and related toy and game applicationsDIGIMARC CORP·Filed 2002·Granted Mar 10, 2009·282 cites·28 claims
- 1698US7319775B2Wavelet domain watermarksDIGIMARC CORP·Filed 2001·Granted Jan 15, 2008·184 cites·13 claims
- 1798US6768809B2Digital watermark screening and detection strategiesDIGIMARC CORP·Filed 2003·Granted Jul 27, 2004·188 cites·20 claims
- 1898US6704869B2Extracting digital watermarks using logarithmic sampling and symmetrical attributesDIGIMARC CORP·Filed 2002·Granted Mar 9, 2004·229 cites·22 claims
- 1998US6516079B1Digital watermark screening and detecting strategiesDIGIMARC CORP·Filed 2000·Granted Feb 4, 2003·214 cites·37 claims
- 2098US6483927B2Synchronizing readers of hidden auxiliary data in quantization-based data hiding schemesDIGIMARC CORP·Filed 2001·Granted Nov 19, 2002·118 cites·33 claims
- 2198US6424725B1Determining transformations of media signals with embedded code signalsDIGIMARC CORP·Filed 2000·Granted Jul 23, 2002·262 cites·28 claims
- 2297US11922532B2System for mitigating the problem of deepfake media content using watermarkingDIGIMARC CORP·Filed 2021·Granted Mar 5, 2024·16 cites·16 claims
- 2397US10043527B1Human auditory system modeling with masking energy adaptationDIGIMARC CORP·Filed 2016·Granted Aug 7, 2018·46 cites·12 claims
- 2497US9959587B2Signal processors and methods for estimating geometric transformations of images for digital data extractionDIGIMARC CORP·Filed 2016·Granted May 1, 2018·32 cites·18 claims
- 2597US9819950B2Hardware-adaptable watermark systemsDIGIMARC CORP·Filed 2015·Granted Nov 14, 2017·30 cites·25 claims
- 2697US6580809B2Quantization-based data hiding employing calibration and locally adaptive quantizationDIGIMARC CORP·Filed 2002·Granted Jun 17, 2003·95 cites·17 claims
- 2797US6408082B1Watermark detection using a fourier mellin transformDIGIMARC CORP·Filed 1999·Granted Jun 18, 2002·462 cites·10 claims
- 2896US9509882B2Steganographic encoding and decodingDIGIMARC CORP·Filed 2015·Granted Nov 29, 2016·14 cites·21 claims
- 2996US8488838B2Combined watermarking and fingerprintingDIGIMARC CORP·Filed 2012·Granted Jul 16, 2013·31 cites·20 claims
- 3096US7076082B2Media signal filtering for use in digital watermark readingDIGIMARC CORP·Filed 2002·Granted Jul 11, 2006·119 cites·19 claims
- 3196US7013021B2Watermark detection utilizing regions with higher probability of successDIGIMARC CORP·Filed 2001·Granted Mar 14, 2006·89 cites·42 claims
- 3295US9842163B2Distributed computing for portable computing devicesDIGIMARC CORP·Filed 2016·Granted Dec 12, 2017·10 cites·30 claims
- 3395US9665919B2Digital watermarking methods, apparatus and systemsDIGIMARC CORP·Filed 2016·Granted May 30, 2017·10 cites·12 claims
- 3495US9401153B2Multi-mode audio recognition and auxiliary data encoding and decodingDIGIMARC CORP·Filed 2013·Granted Jul 26, 2016·39 cites·22 claims
- 3595US9305559B2Audio watermark encoding with reversing polarity and pairwise embeddingDIGIMARC CORP·Filed 2013·Granted Apr 5, 2016·44 cites·20 claims
- 3695US9292894B2Content recognition and synchronization using local cachingDIGIMARC CORP·Filed 2013·Granted Mar 22, 2016·18 cites·14 claims
- 3795US8971567B2Reducing watermark perceptibility and extending detection distortion tolerancesDIGIMARC CORP·Filed 2013·Granted Mar 3, 2015·22 cites·11 claims
- 3895US8687839B2Robust signatures derived from local nonlinear filtersSHARMA RAVI K·Filed 2010·Granted Apr 1, 2014·29 cites·25 claims
- 3995US8144368B2Automated methods for distinguishing copies from original printed objectsRODRIGUEZ TONY F·Filed 2003·Granted Mar 27, 2012·86 cites·24 claims
- 4095US8004576B2Histogram methods and systems for object recognitionDIGIMARC CORP·Filed 2009·Granted Aug 23, 2011·29 cites·6 claims
- 4195US7412072B2Variable message coding protocols for encoding auxiliary data in media signalsDIGIMARC CORP·Filed 2002·Granted Aug 12, 2008·121 cites·24 claims
- 4295US6988202B1Pre-filteriing to increase watermark signal-to-noise ratioDIGIMARC CORP·Filed 2000·Granted Jan 17, 2006·231 cites·12 claims
- 4394US10778755B1Methods and systems for multi-access edge selection based on performance metrics in a communication networkVERIZON PATENT & LICENSING INC·Filed 2019·Granted Sep 15, 2020·15 cites·20 claims
- 4494US10546590B2Multi-mode audio recognition and auxiliary data encoding and decodingDIGIMARC CORP·Filed 2017·Granted Jan 28, 2020·11 cites·20 claims
- 4594US10424038B2Signal encoding outside of guard band region surrounding text characters, including varying encoding strengthDIGIMARC CORP·Filed 2016·Granted Sep 24, 2019·22 cites·21 claims
- 4694US9852736B2Multi-mode audio recognition and auxiliary data encoding and decodingDIGIMARC CORP·Filed 2016·Granted Dec 26, 2017·17 cites·19 claims
- 4794US8913780B2Digital watermarking methods, apparatus and systemsDIGIMARC CORP·Filed 2013·Granted Dec 16, 2014·13 cites·20 claims
- 4894US8744120B2Steganographic encoding and decodingDIGIMARC CORP·Filed 2013·Granted Jun 3, 2014·12 cites·17 claims
- 4993US10026410B2Multi-mode audio recognition and auxiliary data encoding and decodingDIGIMARC CORP·Filed 2016·Granted Jul 17, 2018·15 cites·20 claims
- 5093US9405991B2Histogram methods and systems for object recognitionDIGIMARC CORP·Filed 2015·Granted Aug 2, 2016·8 cites·18 claims
Showing the top 50 of 191 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →