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System for retrieving and playing MP3 files

  • US 7,218,978 B2
  • Filed: 08/13/2004
  • Issued: 05/15/2007
  • Est. Priority Date: 12/01/1999
  • Status: Expired due to Fees
First Claim
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1. A method of identifying and playing a digital audio file, the method including:

  • providing selection device having a plurality of separately identifiable digital audio file being identifiable with reference to an associated zone on substrate;

    providing a substrate visually comprising (i) a graphic icon printed within a zone of the substrate, said graphic icon visually identifying a digital audio file, and (ii) a plurality of tags, each tag containing coded data encoding an identity of the substrate and the tag'"'"'s own location on the substrate;

    selecting said graphic icon on said substrate with a selection device, the selection device sensing at least one tag;

    determining said substrate identity and a location of said sensing device on said substrate, using said coded data contained with said tag;

    identifying a stored digital audio file associated with said zone of said substrate; and

    playing the digital audio file identified by the selection device.

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