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Method and apparatus for providing information about a real-world space

  • US 7,398,093 B2
  • Filed: 08/05/2003
  • Issued: 07/08/2008
  • Est. Priority Date: 08/06/2002
  • Status: Expired due to Fees
First Claim
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1. A method of providing information about a real-world space, comprising:

  • as a user moves through said space, depositing and storing virtual markers to indicate associated locations visited by the user in the space, the virtual markers each having an initial strength value;

    causing the strength values associated with the markers, either taken in location-dependent aggregations or individually, to decay with time after the markers have been stored; and

    using data about the current strength of the stored markers of multiple locations to provide an information item relevant to use of the space, wherein depositing and storing the virtual markers comprises individually storing the virtual markers; and

    wherein causing the strength values to decay comprises causing the strength values to decay individually, the current strength values of the individual markers being aggregated on a location dependent basis for using data about the current strength of the stored markers of multiple locations.

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