PREPAID TYPE DIGITAL CACHE CONVERSION SERVER, PREPAID TYPE DIGITAL CACHE CONVERSION SYSTEM AND PREPAID TYPE DIGITAL CACHE CONVERSION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a prepaid type digital cache conversion system capable of integrating circulation routes.;SOLUTION: This prepaid type digital cache conversion system 10 comprises a user terminal 12 for using plural kinds of prepaid type digital caches by a user U and a prepaid type digital cache conversion server 20 connected to the user terminal 12 through the Internet 14. The server 20 has a conversion part 23 for converting one prepaid type digital cache of these prepaid type digital caches to the other prepaid type digital cache.;COPYRIGHT: (C)2002,JPO