Information terminal device and content backup method

Details Information terminal device and content backup method Information terminal device and content backup method

2007-02-20

2007-02-20

Hewitt, II, Calvin L. (Department: 3621)

Electrical computers and digital processing systems: support

Data processing protection using cryptography

C705S052000, C455S558000

Reexamination Certificate

active

10946528

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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Open Mobile Alliance, DRM Specification, Candidate Version 2.0—Jul. 16, 2004, title page and pp. 3(142)-pp. 6(142) and p. 66(142)—Off Device Storage of Content and Rights Object (9.6).

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