Digital work structure
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United States of America Patent
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Jul 19, 2005
Issued Date -
N/A
app pub date -
Feb 6, 2003
filing date -
Nov 23, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A digital work for use within a rights management system for controlling use of the digital work in accordance with usage rights. The work is organized into an acyclic structure and includes a contents file including information related to content that can be interpreted by an interpreter, and a description tree file including descriptor blocks organized in a hierarchical manner. At least some of the descriptor blocks contain usage rights associated with the content. The usage rights specify a manner of use for the content.
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