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Content billing method, and content billing system and content billing apparatus using the content billing method

  • US 20030187760A1
  • Filed: 12/17/2002
  • Published: 10/02/2003
  • Est. Priority Date: 03/27/2002
  • Status: Active Grant
First Claim
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1. A content billing method for performing billing processing for digital content in which identification information is embedded by using a digital watermarking technique on a computer, comprising the steps of:

  • (a) searching for a plurality of digital content items, and collecting information on whether or not the plurality of digital content items exist;

    (b) extracting identification information embedded in advance in the plurality of digital content items, and generating and recording use information on the plurality of digital content items based on the identification information;

    (c) recognizing a status of use in a predetermined period based on comparison of the newest use information and older use information which is recorded, and generating state-of-use information; and

    (d) calculating a use fee for digital content according to the state-of-use information.

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