Electronic money, electronic use right, charging system,...

Details Electronic money, electronic use right, charging system,... Electronic money, electronic use right, charging system,...

2000-12-20

2008-03-18

Cheung, Mary D. (Department: 3694)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C713S160000, C726S026000

Reexamination Certificate

active

07346582

ABSTRACT:
A system for providing the right to use and reproduce contents data involving so-called electronic money, whereby when compressed and/or encrypted contents data is reproduced, a security for electronic money or an electronic use right is checked, if the electronic money or the electronic use right is invalid as a result of the security check, the reproduction of the contents data is stopped, and if the electronic money or the electronic use right is valid as a result of the security check, the contents data is reproduced and the electronic money or the electronic use right is consumed.

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