Information terminal device and content backup method
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United States of America Patent
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Feb 20, 2007
Grant Date -
Dec 1, 2005
app pub date -
Sep 20, 2004
filing date -
May 28, 2004
priority date (Note) -
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Abstract
A management information generating section generates management information in which the correspondence between content data and rights data is described when a digital DCF container containing encrypted content data and a rights object described in association with a right which decrypt the content data are stored in an external media card. A backup section writes the DCF container, rights object and management information onto the external media card.
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