Table of Contents
Advertisement
10. S. C. M. S. (The Serial Copy Management System)
S.C.M.S. has been announced in July 1989, and is a new protection system for D.A.T. copyright. DA-P20
adopts the Serial Copy Management System. Unlike previous systems, the SCMC standard limits direct
recording from a compact disk to first generation copies (one-time recording only). SCMS provides you
with digital recording capabilities for personal use, without infringing on the rights of copyright holders.
The following shows the restrictions on digital recording that are imposed by the SCMS standard of the
DA-P20.
Figure 1 (Recoridng from digital sources with copyright protection code)
CD PLAYER
DAT RECORDER
BS TUNER
|
PROHIBITED
_
(DIGITAL)
(DIGITAL)
DAT RECORDER
DAT RECORDER
* ONE TIME RECORDING ONLY.
- Figure 2 (Recording from digital sources without copyright protection codes)
OK
OK
OK
OK
DAT RECORDER]
|
(DIGITAL)
|
|. (DIGITAL)
(DIGITAL)
(DIGITAL)
DAT RECORDER
DAT RECORDER
DAT RECORDER
* UNLIMITED COPIES ARE POSSIBLE FROM TYPE OF SOURCE.
Figure 3 (Recording from digital sources without copyright protection function)
AMPLIFIER WITH
OK
OK
PROHIBITED
DIGITAL OUTPUT | (DIGITAL)
(DIGITAL)
(DIGITAL)
TERMINAL
:
|
OLD TYPE OF
BS TUNER
* ONLY SECOND GENERATION COPIES ARE POSSIBLE.
Advertisement
Table of Contents
