Apparatus and method for controlling access to contents...

Details Apparatus and method for controlling access to contents... Apparatus and method for controlling access to contents...

2006-05-02

2006-05-02

Song, Hosuk (Department: 2135)

Electrical computers and digital processing systems: support

System access control based on user identification by...

Using record or token

C713S189000, C713S193000, C713S502000, C726S016000, C726S017000, C726S020000, C726S021000, C711S163000

Reexamination Certificate

active

07039811

ABSTRACT:
Card like electronic equipment, such as a security digital (SD) memory card, includes a CPU, a real time clock (RTC) for counting time data; a FLASH ROM for storing the time data read out from the RTC into a covered RAM area of the ROM; and a lithium ion battery for supplying driving power to the RTC even when the SD memory card is not connected to a host personal computer, in order to enhance security of the contents data, e.g. copyright, protected by the CPU in the SD memory card.

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