Information security – Prevention of unauthorized use of data including prevention... – Access control
Reexamination Certificate
2003-04-10
2009-02-03
Revak, Christopher A (Department: 2131)
Information security
Prevention of unauthorized use of data including prevention...
Access control
C713S193000
Reexamination Certificate
active
07487549
ABSTRACT:
The present invention relates to an information processing apparatus, an information processing method, a recording medium, and a program for importing and exporting a content with information missing controlled. A CPU extracts a sound track contained in the content in step S301, and converts a format of the extracted sound track into a format compatible with a memory stick in step S302. The CPU generates a predetermined file from data contained in the content and excluding the sound track in step S304. In step S306, the CPU attaches reference information of the sound track to the file. In step S307, the CPU controls the writing of the sound track in the converted format and the file to the memory stick. The present invention is applied to clients of a DRM system.
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Supplementary European Search Report dated Oct. 29, 2007 in corresponding European Application No. EP 03 71 9097.
Ezura Yuichi
Ishiguro Ryuji
Kawamoto Yoji
Nagano Motohiko
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Revak Christopher A
Sony Corporation
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