H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 9/28 (2006.01)
Patent
CA 2429112
A method of precluding a copyrighted work from being played in an unauthorized manner comprises encoding the work so as to disable it from playing in conventional players; distributing the encoded work; configuring a decoding player to accept the encoded work and to play the encoded work according to a time based key code, such that the encoded work is playable only when permitted by the time based key code; providing a decoding algorithm for decoding the encoded work; receiving a request for a time based key code; and providing the time based key code to the decoding player such that, subsequent to the time based key code being received by the decoding player, and subsequent to the work being introduced to the decoding player for playing, the decoding player is operable to play the encoded works according to the time based key code.
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