Digital works having usage rights and method for creating the same

DC CAFC
  • US 7,225,160 B2
  • Filed: 12/17/2001
  • Issued: 05/29/2007
  • Est. Priority Date: 11/17/1995
  • Status: Expired due to Fees
First Claim
Patent Images

1. A computer readable medium having embedded thereon a digital work adapted to be distributed within a system for controlling use of digital works, said digital work comprising:

  • a digital content portion that is renderable by a rendering device;

    a usage rights portion associated with said digital content portion and comprising one or more computer readable instructions configured to permit or prohibit said rendering device to render said digital content portion, said usage rights portion being expressed as statements from a usage rights language having a grammar defining a valid sequence of symbols, and specifying a manner of use relating to one or more purposes for which the digital work can be used by an authorized party; and

    a description structure comprising a plurality of description blocks, each of said description blocks comprising address information for at least one part of said digital work, and a usage rights part for associating one or more usage rights portions.

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