Digital work structure
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United States of America Patent
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Oct 5, 2010
Issued Date -
N/A
app pub date -
Jul 7, 2005
filing date -
Nov 23, 1994
priority date (Note) -
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Abstract
A digital work and data structure for use within a system for enforcing usage rights associated with digital content, including a description tree file including descriptor blocks organized in a hierarchical manner. The descriptor blocks include usage rights associated with the digital content, and specifying a manner of use of the digital content, a content identifier including a unique identifier of the digital content, and a usage rights portion including the usage rights. The digital content includes plural content portions, and the usage rights portion includes a rights code field including a code indicative of the manner of use of the digital content and a status information field including information relating to a state of the manner of use.
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