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

  • US 6,477,506 B1
  • Filed: 02/11/1999
  • Issued: 11/05/2002
  • Est. Priority Date: 02/23/1998
  • Status: Expired due to Term
First Claim
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1. A system comprising:

  • terminal apparatus for receiving data served from an information service center and for storing the received data, the terminal apparatus comprising;

    receiving means for receiving the 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 return a useless data of the data stored in the first memory means to the information service center;

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

    wherein, when the useless data is deleted from the data stored in the first memory means, new data is served and downloaded, said new data subsequently being priced through calculation by one of subtracting for the deleted useless data and charging nothing for the now downloaded data; and

    transmitting means for transmitting the information of the reproducing frequency, stored in the second memory means, of the useless data stored in the first memory means, which has been returned to the information service center from the terminal apparatus as directed by the operation means;

    information service center for accumulating a plurality of data and for serving to a terminal apparatus data requested by the terminal apparatus, the information service center comprising;

    a receiving means for receiving information transmitted from the terminal apparatus and which is related to the return of useless data in the terminal apparatus, and an accounting means for determining an equivalent exchange rate to account for the new data served to the terminal apparatus from the information service center based on the information of the reproducing frequency of the useless data, transmitted by the transmitting means to the information service center.

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