Inventor · disambiguated record
Ahmed Tewfik
Also filed as: TEWFIK AHMED · TEWFIK AHMED H
26 granted patents·4 pending applications·2,676 citations·filing 1995–2022
97Inventor score
Top patents by PatentIndex Score
30 records- 0197US6751337B2Digital watermark detecting with weighting functionsDIGIMARC CORP·Filed 2002·Granted Jun 15, 2004·117 cites·20 claims
- 0297US6442283B1Multimedia data embeddingDIGIMARC CORP·Filed 1999·Granted Aug 27, 2002·236 cites·13 claims
- 0397US6272634B1Digital watermarking to resolve multiple claims of ownershipUNIV MINNESOTA·Filed 1997·Granted Aug 7, 2001·324 cites·4 claims
- 0497US6226387B1Method and apparatus for scene-based video watermarkingUNIV MINNESOTA·Filed 1997·Granted May 1, 2001·286 cites·14 claims
- 0597US6031914AMethod and apparatus for embedding data, including watermarks, in human perceptible imagesUNIV MINNESOTA·Filed 1997·Granted Feb 29, 2000·422 cites·23 claims
- 0696US6061793AMethod and apparatus for embedding data, including watermarks, in human perceptible soundsUNIV MINNESOTA·Filed 1997·Granted May 9, 2000·515 cites·30 claims
- 0795US5705978AProcess control transmitterROSEMOUNT INC·Filed 1995·Granted Jan 6, 1998·216 cites·20 claims
- 0894US6282299B1Method and apparatus for video watermarking using perceptual masksUNIV MINNESOTA·Filed 1997·Granted Aug 28, 2001·181 cites·11 claims
- 0990US5987459AImage and document management system for content-based retrievalUNIV MINNESOTA·Filed 1997·Granted Nov 16, 1999·160 cites·21 claims
- 1088US7366908B2Digital watermarking with content dependent keys and autocorrelation properties for synchronizationDIGIMARC CORP·Filed 2001·Granted Apr 29, 2008·36 cites·3 claims
- 1188US6915481B1Transactional watermarkingCOGNICITY INC·Filed 2000·Granted Jul 5, 2005·67 cites·19 claims
- 1287US8131007B2Watermarking using multiple watermarks and keys, including keys dependent on the host signalTEWFIK AHMED·Filed 2007·Granted Mar 6, 2012·13 cites·16 claims
- 1378US7099654B1High speed wireless sensor, server and storage networksUNIV MINNESOTA·Filed 2003·Granted Aug 29, 2006·24 cites·1 claims
- 1473US8306811B2Embedding data in audio and detecting embedded data in audioTEWFIK AHMED·Filed 2007·Granted Nov 6, 2012·9 cites·10 claims
- 1572US8103051B2Multimedia data embedding and decodingTEWFIK AHMED·Filed 2008·Granted Jan 24, 2012·4 cites·26 claims
- 1668US8787962B2Transmit opportunity detectionKUNDARGI NIKHIL·Filed 2010·Granted Jul 22, 2014·3 cites·15 claims
- 1768US8098637B1Load balancing in wireless local area networksTEWFIK AHMED H·Filed 2004·Granted Jan 17, 2012·13 cites·20 claims
- 1864US7454034B2Digital watermarking of tonal and non-tonal components of media signalsDIGIMARC CORP·Filed 2004·Granted Nov 18, 2008·7 cites·20 claims
- 1960US10026016B2Tracking and representation of multi-dimensional organsTEWFIK AHMED H·Filed 2010·Granted Jul 17, 2018·1 cites·12 claims
- 2058US7489665B1Enhanced time resolution using multiple receptionsUNIV MINNESOTA·Filed 2004·Granted Feb 10, 2009·7 cites·7 claims
- 2156US8149961B1Ranging in multi-band communication systemsTEWFIK AHMED H·Filed 2004·Granted Apr 3, 2012·6 cites·6 claims
- 2254US2023139394A1Eeg based speech prosthetic for stroke survivorsAUSTIN SPEECH LABS LLC·Filed 2022·Application pending·0 cites
- 2353US8155375B2Video watermarking using temporal analysisTEWFIK AHMED·Filed 2007·Granted Apr 10, 2012·0 cites·20 claims
- 2453US8090142B2Embedding data in and detecting embedded data from video objectsTEWFIK AHMED·Filed 2007·Granted Jan 3, 2012·0 cites·9 claims
- 2553US7300405B2Analysis of auscultatory sounds using single value decomposition3M INNOVATIVE PROPERTIES CO·Filed 2004·Granted Nov 27, 2007·12 cites·53 claims
- 2650US6643610B1Process transmitter with orthogonal-polynomial fittingROSEMOUNT INC·Filed 1999·Granted Nov 4, 2003·17 cites·45 claims
- 2748US12190873B2Determining whether speech input is intended for a digital assistantAPPLE INC·Filed 2022·Granted Jan 7, 2025·0 cites·45 claims
- 2848US2008222419A1Content Management of Public/Private Content, Including Use of Digital Watermarks to Access Private ContentTEWFIK AHMED·Filed 2007·Application pending·0 cites
- 2938US2004005016A1High bit rate ultra-wideband OFDMFiled 2002·Application pending·0 cites
- 3037US2004141559A1Generating UWB-OFDM signal using sigma-delta modulatorFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →