Sony KDF-55WF655 - Manual (Page 6)

6
Scientific-Atlanta:
What is DFAST?
DFAST is the acronym for Dynamic Feedback Arrangement Scrambling Technique.
DFAST is the system that enables a DCR product (also called the Host device) to
communicate securely with a CableCARD™. Through this communication, the
CableCARD™ is able to send all authorized services to the Host device. For services
that carry copy protection restrictions, the CableCARD™ activates DFAST encryption to
protect the content when it is passed to the Host device.
The manufacturer of the DCR product obtains the right to use the DFAST technology
from CableLabs through a license agreement (either the DFAST License Agreement or
the POD-Host Interface License Agreement, “PHILA”). The license for the DFAST
technology requires that DCR products be produced with limited vulnerability to
tampering and with a certain degree of robustness.
Why is some programming recordable and some programming not recordable?
As a part of the regulations for DCR, the FCC has permitted programmers to activate
copy protection of some digital content; the DFAST and PHILA license agreements
require DCR products to respond to copy protection directives distributed with the
programming. This copy protection allows programmers to limit the programming that
the end consumer can copy digitally. Copy protection directives are signaled through
Copy Control Information embedded in the digital content and may be “Copy Never,”
“Copy One Generation (i.e., no copy of a copy can be made),” “Copy No More” or
“Copy Freely.” The FCC’s rules permit programmers to mark various categories of
In order to start cable service for this device, please
contact your cable provider:
CableCARD
TM
ID: XXX-XXX-XXX-XXX-X
Host ID: XXX-XXX-XXX-XXX-X
Press Menu to return to the Set Up Screen