COMMUNICATION TERMINAL, PORTABLE TERMINAL, CIRCULATING SERVER, PROVIDING SERVER, ELECTRONIC BOOK DISTRIBUTING METHOD, AND ELETRONIC BOOK DISTRIBUTING PROGRAM
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United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
May 25, 2007
filing date -
May 20, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A portable terminal according to the present invention is provided with an electronic book coupon storage, a book data receiver, an electronic book coupon deductor, and a book data decryptor. The electronic book coupon storage stores an electronic book coupon used in acquisition of book data containing a plurality of page data units, along with a decryption key used in decryption of the plurality of page data units. The book data receiver receives the book data from an electronic book providing server. The electronic book coupon deductor deducts an electronic worth equivalent to a price according to page data requested to be read out, from the electronic book coupon. The book data decryptor decrypts the page data in steps of one page data unit by use of the decryption key in conjunction with the deduction of the electronic worth.
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