Content usage control system, content usage apparatus, computer readable recording medium with program recorded for computer to execute usage method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 29, 2005
Grant Date -
N/A
app pub date -
Mar 8, 2000
filing date -
Apr 6, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A content usage control system comprises a copyright holder system, content server, license server and user system. The ACL setting section of the copyright holder system sets a license ACL expressed as a structure by a combination of logic sums and logic products of a plurality of partial licenses for the content, based on the user ID and a plurality of physical element IDs including media used in the user system, and stores the license ACL in an access control list. The license server controls the usage of the content by the user utilizing the access control list.
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