Patent ID: 7184986

Claim:
A content transaction system for settling a transaction of content, comprising: a user device configured for (1) receiving and storing an issue log including issue information indicating an allowable amount of electronic money and an electronic money balance, for creating a usage log of usage of said content, (2) for receiving, storing and using the content, said content being stored independently of said issue log, (3) for deducting a content usage fee from the electronic money balance up to the allowable amount of electronic money set in the issue log based on information of a usage control policy of the content, and (4) for creating the usage log including information on the deducted usage fee; a service provider, which receives said usage log from said user device, for creating a receive log including the information of the content usage fee based on said usage log; a clearing center, which creates said issue log and receives said receive log from said service provider, for performing settlement processing for the electronic money spent for the use of the content based on said receive log, and for making a transfer request to transfer the usage fee; and an account management institution, which receives the transfer request from said clearing center, for performing transfer processing according to the transfer request, wherein, said clearing center manages the allowable amount of electronic money by preliminarily creating said issue log and then issuing said issue log to the user device independently of said content.