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Apparatus and method for providing and obtaining product information through a broadcast signal

  • US 20010052133A1
  • Filed: 04/12/2001
  • Published: 12/13/2001
  • Est. Priority Date: 04/12/2000
  • Status: Abandoned Application
First Claim
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1. A method for obtaining supplementary information on an item in a broadcast signal, comprising:

  • receiving a digital broadcast signal;

    extracting information identifying an item from the received digital broadcast signal;

    comparing the extracted identifying information of the item with identifying information of other items; and

    storing the extracted identifying information based on the comparison result.

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