Title:
SYSTEM AND METHOD FOR CONTROLLING DISPLAY OF COPY-NEVER CONTENT
Document Type and Number:
WIPO Patent Application WO2005057356
Kind Code:
A3
Abstract:
A method and system for controlling the use of unauthorized content, and specifically for controlling the display of content that is marked as "copy-never." A compliant signal source transmits a video signal along with a secure timestamp to a compliant display device. The compliant display device determines whether the video signal is authorized to be displayed by determining the content management usage rights status in the video signal and the delay between when the video signal was transmitted and when it was received. In an embodiment of the invention, copy-never content that exceeds a defined delay between transmission and reception is prevented from being displayed.
Inventors:
WILLIAMS JIM C (US)
Application Number:
PCT/US2004/040862
Publication Date:
October 12, 2006
Filing Date:
December 06, 2004
Export Citation:
Assignee:
MOTION PICTURE ASS OF AMERICA (US)
WILLIAMS JIM C (US)
WILLIAMS JIM C (US)
International Classes:
G06F1/04; G06F1/14; G06F1/24; G06F21/00; G06K7/04; G09C3/00; G09C5/00; H03M7/30; H04L1/00; H04L9/00; H04L9/30; H04L9/32; H04N7/16; G06F3/14; G09G5/00; G06F
Foreign References:
| US6490355B1 | 2002-12-03 | |||
| US6330672B1 | 2001-12-11 | |||
| US6453420B1 | 2002-09-17 | |||
| US5664018A | 1997-09-02 | |||
| US5960081A | 1999-09-28 | |||
| US7000113B1 | 2006-02-14 |
Other References:
See also references of EP 1695184A4
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