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Supporting common interactive television functionality through presentation engine syntax

DC
  • US 7,055,169 B2
  • Filed: 04/21/2003
  • Issued: 05/30/2006
  • Est. Priority Date: 04/19/2002
  • Status: Expired due to Term
First Claim
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1. A method comprising:

  • receiving one or more directives, wherein said directives are indicative of an audio, video and/or graphic presentation which requires a set of resources;

    determining whether said one or more directives includes a prerequisite directive which indicates that acciuisition of a subset of said set of resources is a prerequisite for initiating the presentation;

    initiating said presentation, in response to determining the one or more directives do not include said prerequisite directive; and

    prohibiting initiation of said presentation until said subset of resources are acquired, in response to determining the one or more directives include said prerequisite directive.

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