Method and apparatus for validating security information by...

Details Method and apparatus for validating security information by... Method and apparatus for validating security information by...

2007-02-06

2007-02-06

Patel, Gautam R. (Department: 2627)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

C369S059250, C369S275300

Reexamination Certificate

active

10700100

ABSTRACT:
A security control method for an optical disk drive comprises a security information reading step and a security information-determining step. In the security information reading step, security information associated with data to be read is read from a plurality of locations on an optical disk. In the security information-determining step, correct security information is determined by comparing fragments of the security information read from the plurality of locations and then by selecting a security information fragment with the highest frequency. The correct security information is used in processing of the data to be read.

REFERENCES:
patent: 5541904 (1996-07-01), Fite et al.
patent: 6765852 (2004-07-01), Van Den Enden et al.
patent: 2001-035092 (2001-02-01), None

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