Information providing device and method

Details Information providing device and method Information providing device and method

2007-09-18

2007-09-18

Heneghan, Matthew (Department: 2134)

Information security

Prevention of unauthorized use of data including prevention...

Access control

C370S254000, C709S223000, C714S004110

Reexamination Certificate

active

10048164

ABSTRACT:
An authentication function authenticates a PDA. The content database holds the usage conditions of a content and the information about the content. The communication function controls the reception of the usage conditions and the content information, both transmitted from the PDA. The content management function updates the usage conditions and the content information received, on the basis of the usage conditions and the content information held. The desired content is thereby retrieved quickly.

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“SDMI Portable Device Specification”, SDMI, Part 1, Version 1.0, XP-000997330, Jul. 8, 1999, pp. 1-35.

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