Method and apparatus for transmitting and receiving a...

Details Method and apparatus for transmitting and receiving a... Method and apparatus for transmitting and receiving a...

2008-01-22

2008-01-22

Elisca, Pierre Eddy (Department: 3621)

Data processing: financial, business practice, management, or co

Business processing using cryptography

Usage protection of distributed data files

C705S058000, C713S150000

Reexamination Certificate

active

07321878

ABSTRACT:
A data recording apparatus capable of preventing easily copying of information is disclosed with which, even if information is copied, the copied information cannot be reproduced, the data recording apparatus having a terminal to which encoder ID specific for the data recording apparatus is input, a recording unit for recording at least the encoder ID on an optical disk, and an encoding circuit for, in accordance with the encoder ID, encoding data supplied through a terminal and required to be recorded so that encoded data is, together with the encoder ID, recorded on the optical disk.

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