Electronic money, electronic use right, charging system, information processing apparatus, and reproducing method and reproduction control method of contents data
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 18, 2008
Grant Date -
Sep 12, 2002
app pub date -
Dec 20, 2000
filing date -
Dec 21, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
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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