DISKLIKE RECORDING MEDIA, A METHOD FOR DETECTING FORGED...

Dynamic information storage or retrieval – Storage medium structure – Optical track structure

Reexamination Certificate

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C369S275300, C369S275500, C369S053210, C369S059100

Reexamination Certificate

active

06914874

ABSTRACT:
A recording medium includes first information selected from a plurality of information patterns and second information selected from another plurality of information patterns for the true-false judgement. A true-false judging device performs a statistic analysis when any coincidence is found between the readout combination of the first and second information and registered combination patterns, to identify an inspected recording medium as a forged product based on the result of the statistic analysis.

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