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Method of, and system for, describing a geographical area to a communications network

  • US 5,592,172 A
  • Filed: 04/12/1994
  • Issued: 01/07/1997
  • Est. Priority Date: 05/14/1993
  • Status: Expired due to Term
First Claim
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1. A method of describing a geographical area to a communications network, comprising determining the shape of the geographical area and determining the location of at least one point lying symmetrically in the geographical area or lying on the perimeter of the geographical area, encoding the location of the at least one point as an angle of latitude and an angle of longitude and encoding the shape of the geographical area as a series of bits, and transmitting the description of the geographical area as a single code word or a plurality of concatenated code words.

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