Data processing: financial – business practice – management – or co – Business processing using cryptography – Usage protection of distributed data files
Reexamination Certificate
2004-03-15
2008-11-25
Rosen, Nicholas D (Department: 3625)
Data processing: financial, business practice, management, or co
Business processing using cryptography
Usage protection of distributed data files
C705S026640, C705S051000, C705S057000
Reexamination Certificate
active
07457780
ABSTRACT:
A cyber mall system has a contents sales apparatus for selling digital contents, a contents purchasing apparatus, and a network for connecting these components. When digital contents are registered into the contents sales apparatus, digital contents personal using conditions are generated on the basis of digital contents using conditions and are provided to a customer. If the digital contents are again purchased after the delivery of the digital contents fails, as long as the digital contents personal using conditions provided at the time of purchase are valid, the digital contents are again delivered without again collecting a digital contents value.
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Kimura Tomoko
Koike Hiroshi
Namioka Miyoko
Okayama Nobuya
Hitachi , Ltd.
Mattingly, Stanger Malur & Brundidge PC
Rosen Nicholas D
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