System and method for relaxing media access restrictions over time
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 29, 2011
Grant Date -
May 29, 2008
app pub date -
Sep 21, 2006
filing date -
Sep 21, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A disk bears a multimedia program and a player plays the program. The player is responsive to an image restraint token (IRT) to play the multimedia program only in a low resolution format and not in a high resolution format prior to an IRT expiration date. The player is then responsive to a key that is publicly available only on or after the expiration date and entered into the player to play the multimedia program in the high resolution format.
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