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Method and apparatus for hierarchical assignment of rights to documents and documents having such rights

  • US 20070038859A1
  • Filed: 10/23/2006
  • Published: 02/15/2007
  • Est. Priority Date: 05/31/2001
  • Status: Active Grant
First Claim
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1. A self-contained device for protecting content, the content having usage rights associated therewith, the device comprising:

  • a usage rights portion having usage rights that control the use of the content;

    a rights management module that authorizes a request to access to the content based on the usage rights;

    a rights assignment module that generates and updates the usage rights based on the content access; and

    an interface module that allows accessing of the content.

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