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David Jay Duffield
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Princeton, NJ, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method and system for adding a conditional access system
Patent number
8,813,113
Issue date
Aug 19, 2014
Thomson Licensing
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Reduced rainbow artifacts in digital light projection systems
Patent number
8,358,384
Issue date
Jan 22, 2013
Thomson Licensing
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Global copy protection system for digital home networks
Patent number
8,332,657
Issue date
Dec 11, 2012
Thomson Licensing
Ahmet Mursit Eskicioglu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for permitting unconfirmed viewing time with a...
Patent number
8,024,752
Issue date
Sep 20, 2011
Thomson Licensing
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Watermarking of motion picture prints
Patent number
7,936,898
Issue date
May 3, 2011
Thomson Licensing
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Sequence counter for an audio visual stream
Patent number
7,551,837
Issue date
Jun 23, 2009
Thomson Licensing
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Key transport tamper protection
Patent number
7,469,420
Issue date
Dec 23, 2008
Thomson Licensing
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Theater identification system utilizing identifiers projected throu...
Patent number
7,420,649
Issue date
Sep 2, 2008
Thomson Licensing
David Jay Duffield
G11 - INFORMATION STORAGE
Information
Patent Grant
System and method of verifying authorization for communicating prot...
Patent number
7,356,848
Issue date
Apr 8, 2008
Thomson Licensing
David Jay Duffield
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for controlling the distribution of digitally...
Patent number
7,318,099
Issue date
Jan 8, 2008
Thomas Licensing
Thomas Anthony Stahl
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System and method for adaptive marking and coding of film prints
Patent number
7,295,281
Issue date
Nov 13, 2007
Thomson Licensing
David Jay Duffield
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Anti-piracy coding of motion pictures
Patent number
7,289,644
Issue date
Oct 30, 2007
Thomson Licensing
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for handling two CA systems in a same receiver
Patent number
7,254,236
Issue date
Aug 7, 2007
Thomson Licensing
Ahmet Mursit Eskicioglu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and associated method for limiting access of information...
Patent number
6,970,068
Issue date
Nov 29, 2005
THOMSON Licensing S.A.
Michael Anthony Pugel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Bit-mapped on-screen-display device for a television receiver
Patent number
5,640,502
Issue date
Jun 17, 1997
Thomson Consumer Electronics, Inc.
Michael Dwayne Knox
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System for controlling updates of extended data services (EDS) data
Patent number
5,617,146
Issue date
Apr 1, 1997
Thomson Consumer Electronics, Inc.
David J. Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatic letterbox detection
Patent number
5,486,871
Issue date
Jan 23, 1996
Thomson Consumer Electronics, Inc.
Paul D. Filliman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Television receiver having the capability to associate any HDTV and...
Patent number
5,461,427
Issue date
Oct 24, 1995
Thomson Consumer Electronics, Inc.
David J. Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Signal swap apparatus for a television receiver having an HDTV main...
Patent number
5,453,796
Issue date
Sep 26, 1995
Thomson Consumer Electronics, Inc.
David J. Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Programmable remote control unit without extra key for configuration
Patent number
5,451,953
Issue date
Sep 19, 1995
Thomson Consumer Electronics, Inc.
David J. Duffield
G08 - SIGNALLING
Information
Patent Grant
Programmable picture-outside-picture display
Patent number
5,398,074
Issue date
Mar 14, 1995
Thomson Consumer Electronics, Inc.
David J. Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Video display having progressively dimmed video images and constant...
Patent number
5,386,247
Issue date
Jan 31, 1995
Thomson Consumer Electronics, Inc.
Kirk E. Shafer
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Side by side picture display with reduced cropping
Patent number
5,363,143
Issue date
Nov 8, 1994
Thomson Consumer Electronics, Inc.
David J. Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Field to field vertical panning system
Patent number
5,294,987
Issue date
Mar 15, 1994
Thomson Consumer Electronics, Inc.
Timothy W. Saeger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Automatic channel sampling picture-in-picture circuitry
Patent number
5,194,954
Issue date
Mar 16, 1993
Thomson Consumer Electronics, Inc.
David J. Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Data transfer from an external computer to a television receiver ha...
Patent number
5,113,259
Issue date
May 12, 1992
Thomson Consumer Electronics, Inc.
Eric D. Romesburg
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Data transfer from a television receiver having picture-in-picture...
Patent number
5,111,296
Issue date
May 5, 1992
Thomson Consumer Electronics, Inc.
David J. Duffield
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Picture-in-picture circuitry using field rate synchronization
Patent number
5,091,785
Issue date
Feb 25, 1992
Thomson Consumer Electronics, Inc.
Barth A. Canfield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Television system with zoom capability for at least one inset picture
Patent number
5,047,857
Issue date
Sep 10, 1991
Thomson Consumer Electronics, Inc.
David J. Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Inset picture centering in a pix-in-pix system
Patent number
5,031,044
Issue date
Jul 9, 1991
RCA Licensing Corporation
Barth A. Canfield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
BROADCAST CONDITIONAL ACCESS SYSTEM WITH IMPULSE PURCHASE CAPABILIT...
Publication number
20150358657
Publication date
Dec 10, 2015
THOMSON LICENSING
David Jay DUFFIELD
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and system for adding a conditional access system
Publication number
20150100980
Publication date
Apr 9, 2015
THOMSON LICENSING
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Reduced Rainbow Artifacts in Digital Light Projection Systems
Publication number
20080136978
Publication date
Jun 12, 2008
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Watermarking of Motion Picture prints
Publication number
20070206020
Publication date
Sep 6, 2007
David Duffield
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Broadcast conditional access system with impulse purchase capabilit...
Publication number
20070101357
Publication date
May 3, 2007
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for adaptive marking and coding of film prints
Publication number
20060286489
Publication date
Dec 21, 2006
THOMSON LICENSING
David Jay Duffield
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Anti-piracy coding of motion pictures
Publication number
20050238167
Publication date
Oct 27, 2005
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and apparatus for controlling the distribution of digitally...
Publication number
20050198282
Publication date
Sep 8, 2005
Thomas Anthony Stahl
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Key transport tamper protection
Publication number
20050163318
Publication date
Jul 28, 2005
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Smartcard uart for minimizing processor demands in a conditional ac...
Publication number
20050160448
Publication date
Jul 21, 2005
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Sequence counter for an audio visual stream
Publication number
20040233811
Publication date
Nov 25, 2004
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and apparatus for permitting unconfirmed viewing time with a...
Publication number
20040210924
Publication date
Oct 21, 2004
David Jay Duffield
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
CA system for broadcast DTV using multiple keys for different servi...
Publication number
20020146125
Publication date
Oct 10, 2002
Ahmet Eskicioglu
H04 - ELECTRIC COMMUNICATION TECHNIQUE