Christopher R. Wren

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Cambridge, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods of establishing a communications link using perceptual sens...
- Patent number 7,242,421
- Issue date Jul 10, 2007
- Perceptive Network Technologies, Inc.
- Julian L. Center, Jr.
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Computer vision depth segmentation using virtual surface
- Patent number 6,911,995
- Issue date Jun 28, 2005
- Mitsubishi Electric Research Labs, Inc.
- Yuri A. Ivanov
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Videoconferencing method with tracking of face and dynamic bandwidt...
- Patent number 6,680,745
- Issue date Jan 20, 2004
- Perceptive Network Technologies, Inc.
- Julian L. Center
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHODS OF ESTABLISHING A COMMUNICATIONS LINK USING PERCEPTUAL SENS...
- Publication number 20070229652
- Publication date Oct 4, 2007
- Julian L. Center
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Computer vision depth segmentation using virtual surface
- Publication number 20030038875
- Publication date Feb 27, 2003
- Yuri A. Ivanov
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Methods of establishing a communications link using perceptual sens...
- Publication number 20020163572
- Publication date Nov 7, 2002
- Julian L. Center
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method of extending image-based face recognition systems to utilize...
- Publication number 20020113687
- Publication date Aug 22, 2002
- Julian L. Center
- G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information Patent Application
Videoconferencing method with tracking of face and dynamic bandwidt...
- Publication number 20020113862
- Publication date Aug 22, 2002
- Julian L. Center
- H04 - ELECTRIC COMMUNICATION TECHNIQUE