Ahmed H. Tewfik

Person

Austin, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Transmit opportunity detection
- Patent number 8,787,962
- Issue date Jul 22, 2014
- Regents of The University of Minnesota
- Nikhil Kundargi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Embedding data in audio and detecting embedded data in audio
- Patent number 8,306,811
- Issue date Nov 6, 2012
- Digimarc Corporation
- Ahmed Tewfik
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Video watermarking using temporal analysis
- Patent number 8,155,375
- Issue date Apr 10, 2012
- Regents of the University of Minnesota
- Ahmed Tewfik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ranging in multi-band communication systems
- Patent number 8,149,961
- Issue date Apr 3, 2012
- Regents of the University of Minnesota
- Ahmed H. Tewfik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Watermarking using multiple watermarks and keys, including keys dep...
- Patent number 8,131,007
- Issue date Mar 6, 2012
- Regents of the University of Minnesota
- Ahmed Tewfik
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Multimedia data embedding and decoding
- Patent number 8,103,051
- Issue date Jan 24, 2012
- Digimarc Corporation
- Ahmed Tewfik
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Load balancing in wireless local area networks
- Patent number 8,098,637
- Issue date Jan 17, 2012
- Regents of the University of Minnesota
- Ahmed H. Tewfik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Embedding data in and detecting embedded data from video objects
- Patent number 8,090,142
- Issue date Jan 3, 2012
- Regents of the University of Minnesota
- Ahmed Tewfik
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Enhanced time resolution using multiple receptions
- Patent number 7,489,665
- Issue date Feb 10, 2009
- Regents of the University of Minnesota
- Ahmed H. Tewfik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital watermarking of tonal and non-tonal components of media sig...
- Patent number 7,454,034
- Issue date Nov 18, 2008
- Digimarc Corporation
- Ahmed Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital watermarking with content dependent keys and autocorrelatio...
- Patent number 7,366,908
- Issue date Apr 29, 2008
- Digimarc Corporation
- Ahmed Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
High speed wireless sensor, server and storage networks
- Patent number 7,099,654
- Issue date Aug 29, 2006
- Regents of The University of Minnesota
- Ahmed H. Tewfik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transactional watermarking
- Patent number 6,915,481
- Issue date Jul 5, 2005
- Cognicity, Inc.
- Ahmed Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital watermark detecting with weighting functions
- Patent number 6,751,337
- Issue date Jun 15, 2004
- Digimarc Corporation
- Ahmed Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Process transmitter with orthogonal-polynomial fitting
- Patent number 6,643,610
- Issue date Nov 4, 2003
- Rosemount Inc.
- Lowell A. Kleven
- G01 - MEASURING TESTING
Information Patent Grant
Multimedia data embedding
- Patent number 6,442,283
- Issue date Aug 27, 2002
- Digimarc Corporation
- Ahmed Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for video watermarking using perceptual masks
- Patent number 6,282,299
- Issue date Aug 28, 2001
- Regents of The University of Minnesota
- Ahmed H. Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Digital watermarking to resolve multiple claims of ownership
- Patent number 6,272,634
- Issue date Aug 7, 2001
- Regents of The University of Minnesota
- Ahmed H. Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for scene-based video watermarking
- Patent number 6,226,387
- Issue date May 1, 2001
- Regents of The University of Minnesota
- Ahmed H. Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for embedding data, including watermarks, in h...
- Patent number 6,061,793
- Issue date May 9, 2000
- Regents of The University of Minnesota
- Ahmed H. Tewfik
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Grant
Method and apparatus for embedding data, including watermarks, in h...
- Patent number 6,031,914
- Issue date Feb 29, 2000
- Regents of The University of Minnesota
- Ahmed H. Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image and document management system for content-based retrieval
- Patent number 5,987,459
- Issue date Nov 16, 1999
- Regents of The University of Minnesota
- Mitchell D. Swanson
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Process control transmitter
- Patent number 5,705,978
- Issue date Jan 6, 1998
- Rosemount Inc.
- Roger L. Frick
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
TRANSMIT OPPORTUNITY DETECTION
- Publication number 20120135779
- Publication date May 31, 2012
- Nikhil Kundargi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
TRACKING AND REPRESENTATION OF MULTI-DIMENSIONAL ORGANS
- Publication number 20110044521
- Publication date Feb 24, 2011
- Regents of the University of Minnesota
- Ahmed H. Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Multimedia Data Embedding and Decoding
- Publication number 20090304226
- Publication date Dec 10, 2009
- Ahmed Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Watermarking Using Multiple Watermarks and Keys, Including Keys Dep...
- Publication number 20080226121
- Publication date Sep 18, 2008
- Ahmed Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Video Watermarking Using Temporal Analysis
- Publication number 20080226120
- Publication date Sep 18, 2008
- Ahmed Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Content Management of Public/Private Content, Including Use of Digi...
- Publication number 20080222419
- Publication date Sep 11, 2008
- Ahmed Tewfik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Embedding data in and detecting embedded data from video objects
- Publication number 20080219496
- Publication date Sep 11, 2008
- Ahmed Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Embedding Data in Audio and Detecting Embedded Data in Audio
- Publication number 20080215333
- Publication date Sep 4, 2008
- Ahmed Tewfik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital watermarking of tonal and non-tonal components of media sig...
- Publication number 20050025334
- Publication date Feb 3, 2005
- Ahmed Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Digital rights management
- Publication number 20040174996
- Publication date Sep 9, 2004
- Ahmed Tewfik
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Generating UWB-OFDM signal using sigma-delta modulator
- Publication number 20040141559
- Publication date Jul 22, 2004
- Ahmed H. Tewfik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
High bit rate ultra-wideband OFDM
- Publication number 20040005016
- Publication date Jan 8, 2004
- Ahmed Tewfik
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Digital watermark detecting with weighting functions
- Publication number 20030095685
- Publication date May 22, 2003
- Ahmed Tewfik
- G06 - COMPUTING CALCULATING COUNTING

Ahmed H. Tewfik

Person

Patents Grantslast 30 patents

Transmit opportunity detection

Embedding data in audio and detecting embedded data in audio

Video watermarking using temporal analysis

Ranging in multi-band communication systems

Watermarking using multiple watermarks and keys, including keys dep...

Multimedia data embedding and decoding

Load balancing in wireless local area networks

Embedding data in and detecting embedded data from video objects

Enhanced time resolution using multiple receptions

Digital watermarking of tonal and non-tonal components of media sig...

Digital watermarking with content dependent keys and autocorrelatio...

High speed wireless sensor, server and storage networks

Transactional watermarking

Digital watermark detecting with weighting functions

Process transmitter with orthogonal-polynomial fitting

Multimedia data embedding

Method and apparatus for video watermarking using perceptual masks

Digital watermarking to resolve multiple claims of ownership

Method and apparatus for scene-based video watermarking

Method and apparatus for embedding data, including watermarks, in h...

Method and apparatus for embedding data, including watermarks, in h...

Image and document management system for content-based retrieval

Process control transmitter

Patents Applicationslast 30 patents

TRANSMIT OPPORTUNITY DETECTION

TRACKING AND REPRESENTATION OF MULTI-DIMENSIONAL ORGANS

Multimedia Data Embedding and Decoding

Watermarking Using Multiple Watermarks and Keys, Including Keys Dep...

Video Watermarking Using Temporal Analysis

Content Management of Public/Private Content, Including Use of Digi...

Embedding data in and detecting embedded data from video objects

Embedding Data in Audio and Detecting Embedded Data in Audio

Digital watermarking of tonal and non-tonal components of media sig...

Digital rights management

Generating UWB-OFDM signal using sigma-delta modulator

High bit rate ultra-wideband OFDM

Digital watermark detecting with weighting functions