Non-volatile record medium, recording method, and recording...

Cryptography – Video cryptography

Reexamination Certificate

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C380S203000, C380S217000

Reexamination Certificate

active

06985584

ABSTRACT:
A non-volatile recording medium for recording a digital audio signal that has been compressed at a compression rate selectable in a predetermined range and block-segmented in a predetermined data length is disclosed, wherein the predetermined data length of which the digital audio data is block-segmented is decided in consideration of the maximum recordable time and the data length of which the digital audio signal is encrypted.

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