Recording apparatus, reproduction apparatus, data processing...

Details Recording apparatus, reproduction apparatus, data processing... Recording apparatus, reproduction apparatus, data processing...

2006-10-24

2010-10-26

Korzuch, William R (Department: 2431)

Information security

Prevention of unauthorized use of data including prevention...

Limitations on number or amount of copies

C380S201000, C713S193000, C705S056000, C705S057000

Reexamination Certificate

active

07823213

ABSTRACT:
An encryptor is provided for encrypting AV data sent from an interface. A controller controls recording of the encrypted AV data by controlling a recorder for recording the encrypted AV data in a magnetic disk. The recorder is controlled by the controller so as to reproduce the data recorded on the disk. A decrypter decrypts the reproduced data that is sent to the interface.

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