发明名称 |
DETERMINING VALIDITY OF SUBSCRIPTION TO USE DIGITAL CONTENT |
摘要 |
Some embodiments provide a method for determining whether a subscription for using digital content on a user device has elapsed. The method compares a first collision free image of a first set of entities in the user device with a second collision free image for a second set of entities in the user device at a second instance in time. Based on the comparison, the method determines whether the subscription has elapsed.
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申请公布号 |
US2007265975(A1) |
申请公布日期 |
2007.11.15 |
申请号 |
US20060382469 |
申请日期 |
2006.05.09 |
申请人 |
FARRUGIA AUGUSTIN J;FASOLI GIANPAOLO |
发明人 |
FARRUGIA AUGUSTIN J.;FASOLI GIANPAOLO |
分类号 |
G06Q99/00 |
主分类号 |
G06Q99/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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