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Electronic guide information processing system, information distributing apparatus, portable terminal apparatus, and method for processing electronic guide information

  • US 7,783,498 B2
  • Filed: 10/16/2001
  • Issued: 08/24/2010
  • Est. Priority Date: 10/17/2000
  • Status: Expired due to Fees
First Claim
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1. An electronic guide information processing system for electronically processing guide information about a place, the system comprising:

  • an information distributing apparatus for converting the guide information into electronic guide information, encrypting the electronic guide information, and then distributing the encrypted electronic guide information;

    a portable terminal apparatus for recording the encrypted electronic guide information, decrypting the encrypted electronic guide information, and presenting the electronic guide information; and

    an information processing apparatus for erasing the electronic guide information from the portable terminal apparatus and writing in the portable terminal apparatus of information about the place, wherein the erasing and the writing are performed at the same area.

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