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Terminal apparatus, information service center, transmitting system, and transmitting method

  • US 7,003,496 B2
  • Filed: 03/25/2002
  • Issued: 02/21/2006
  • Est. Priority Date: 02/23/1998
  • Status: Expired due to Fees
First Claim
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1. A system that transfers data between an information service center and a plurality of terminals, comprising:

  • first and second terminals, each includingreceiving means for receiving data served from the information service center;

    first memory means for storing the data received by the receiving means;

    operation means operable to direct the terminal apparatus to delete and transfer unnecessary data of the data stored in the first memory means to the information service center;

    second memory means for storing information of a reproduction frequency of each individual data stored in the first memory means; and

    transmitting means for transmitting to the information service center the unnecessary data and for transmitting the information of the reproduction frequency of the unnecessary data deleted from the first memory means and transmitted to the information service center, wherein the information service center calculates an equivalent exchange rate based on the information transmitted by the transmitting means, and discounts for a subsequent new served data based on the calculated equivalent exchange rate.

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