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Multi-level, hierarchical radio-frequency communication system

  • US 6,006,100 A
  • Filed: 05/06/1994
  • Issued: 12/21/1999
  • Est. Priority Date: 05/25/1990
  • Status: Expired due to Term
First Claim
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1. A method of wirelessly communicating data messages among a plurality of data processing devices, a battery powered, hand-held computing device, and a first wireless network, the method comprising:

  • communicating, by the battery powered, hand-held computing device, on a second wireless network that operates independently from the first wireless network;

    communicating, by each of the plurality of data processing devices, data messages to the battery powered, hand-held computing device via the second wireless network; and

    selectively communicating, by the battery powered, hand-held computing device, the communicated data messages either to a selected one of said plurality of data processing devices via the second wireless network or through the first wireless network.

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