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Information system

  • US 7,327,282 B2
  • Filed: 04/18/2003
  • Issued: 02/05/2008
  • Est. Priority Date: 10/11/1999
  • Status: Expired due to Fees
First Claim
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1. A local area information system, comprising at least one transmitter connected to a data network, said at least one transmitter having a memory for storing information relating to the local area, and a plurality of portable user devices for receiving the information from the at least one transmitter and presenting the information to a user, wherein the user device is arranged to receive information from the at least one transmitter and to present selected parts of it to a user, wherein each user device includes a user device transmitter such that a user can establish bi-directional communication to access the data network via the at least one transmitter to request information when the requested information is not held in the memory of the at least one transmitter.

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