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H04N2005/91378
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H04N2005/91378
the video line number being modulated
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Patents Grants
last 30 patents
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Patent Grant
Video content identification using scene change signatures from dow...
Patent number
8,655,031
Issue date
Feb 18, 2014
Sony Corporation
Chris Read
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Techniques for shuffling video information
Patent number
8,510,654
Issue date
Aug 13, 2013
Intel Corporation
Scott Janus
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for inducing and or reducing geometric distort...
Patent number
8,374,489
Issue date
Feb 12, 2013
Rovi Technologies Corporation
Ronald Quan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Copy protection for video signal using narrowed horizontal synchron...
Patent number
7,706,533
Issue date
Apr 27, 2010
Macrovision Corporation
Ronald Quan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Techniques for shuffling video information
Patent number
7,647,557
Issue date
Jan 12, 2010
Intel Corporation
Scott Janus
G11 - INFORMATION STORAGE
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Patent Grant
Copy protection for video signal added pulses
Patent number
7,620,178
Issue date
Nov 17, 2009
Macrovision Corporation
Peter J. Wonfor
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Copy protection for video signal using added negative amplitude pulse
Patent number
7,492,896
Issue date
Feb 17, 2009
Macrovision Corporation
Ronald Quan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Copy protection for video signal using narrowed horizontal synchron...
Patent number
7,352,863
Issue date
Apr 1, 2008
Macrovision Corporation
Ronald Quan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for modifying a copy protected video signal with a negative...
Patent number
7,085,380
Issue date
Aug 1, 2006
Macrovision Corporation
Ronald Quan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for modifying a video signal by back porch low...
Patent number
6,501,842
Issue date
Dec 31, 2002
Macrovision Corporation
Ronald Quan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for copy protecting computer graphics
Patent number
6,345,099
Issue date
Feb 5, 2002
S3 Incorporated
José R. Alvarez
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Method and apparatus for reducing effects of copy protection of com...
Patent number
6,285,765
Issue date
Sep 4, 2001
Macrovision Corporation
Ronald Quan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Method and apparatus to reduce effects of certain copy protection p...
Patent number
5,748,733
Issue date
May 5, 1998
Macrovision Corporation
Ronald Quan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Video copy protection process enhancement to introduce horizontal a...
Patent number
5,633,927
Issue date
May 27, 1997
Macrovision Corporation
John O. Ryan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Method and apparatus to defeat certain copy protection pulses withi...
Patent number
5,625,691
Issue date
Apr 29, 1997
Macrovision Corporation
Ronald Quan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Video copy protection process enhancement to introduce horizontal a...
Patent number
5,583,936
Issue date
Dec 10, 1996
Macrovision Corporation
Peter J. Wonfor
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Anti-copying video signal processing
Patent number
5,034,981
Issue date
Jul 23, 1991
Eidak Corporation
Eugene Leonard
G11 - INFORMATION STORAGE
Information
Patent Grant
Encoding an optical video disc to inhibit video tape recording
Patent number
5,003,590
Issue date
Mar 26, 1991
Eidak Corporation
Bernard J. Lechner
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Modifying a television signal to inhibit recording/reproduction
Patent number
4,914,694
Issue date
Apr 3, 1990
Eidak Corporation
Eugene Leonard
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
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Patent Application
METHOD AND APPARATUS FOR PROVIDING AN INTERACTIVE AND OR ELECTRONIC...
Publication number
20120321279
Publication date
Dec 20, 2012
Rovi Technologies Corporation
Ronald Quan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and Apparatus for Inducing and or Reducing Geometric Distort...
Publication number
20110069233
Publication date
Mar 24, 2011
Rovi Technologies Corporation
Ronald Quan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TECHNIQUES FOR SHUFFLING VIDEO INFORMATION
Publication number
20100071073
Publication date
Mar 18, 2010
Scott Janus
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD FOR COPY PROTECTION FOR VIDEO SIGNAL WITH ADDED PULSES
Publication number
20100021133
Publication date
Jan 28, 2010
MACROVISION CORPORATION
Peter J. WONFOR
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Video Content Identification Using Scene Change Signatures from Dow...
Publication number
20080239159
Publication date
Oct 2, 2008
SONY CORPORATION
Chris Read
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
VIDEO COPY PROTECTION PROCESS ENHANCEMENT TO INTRODUCE HORIZONTAL A...
Publication number
20080025696
Publication date
Jan 31, 2008
Peter J. Wonfor
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Copy protection for video signal using narrowed horizontal synchron...
Publication number
20070211899
Publication date
Sep 13, 2007
Peter J. Wonfor
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Copy protection for video signal using added negative amplitude pulse
Publication number
20070211898
Publication date
Sep 13, 2007
Peter J. Wonfor
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Copy protection for video signal added pulses
Publication number
20070206794
Publication date
Sep 6, 2007
Peter J. Wonfor
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Techniques for shuffling video information
Publication number
20070006271
Publication date
Jan 4, 2007
Scott Janus
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Copy protection for video signal using narrowed horizontal synchron...
Publication number
20060045266
Publication date
Mar 2, 2006
MACROVISION CORPORATION
Peter J. Wonfor
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for modifying a copy protected video signal with a negative...
Publication number
20020018564
Publication date
Feb 14, 2002
Peter J. Wonfor
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and apparatus for modifying a video signal by back porch low...
Publication number
20010026617
Publication date
Oct 4, 2001
Peter J. Wonfor
H04 - ELECTRIC COMMUNICATION TECHNIQUE