LG 50PC1DR - - 50" Plasma TV, Руководство по обучению

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CableCARD M-Card
CABLECARD M-CARD
M-Card / S-Card operation
Reporting CableCARD Device and Host Identification Information
The CableCARD device extracts the CARD_ID and Host_ID from the authenticated X.509 device certificates and sends
them to the headend. Two means are employed to report these IDs. In order of preference:
· Two-Way: If the cable system has an active RDC (legacy or DSG) and the Host has an RDC transmitter,
the CableCARD device MAY use them to report the IDs to the headend.
· Manual: If an automated means is not available, the CableCARD device will display the ID information
on the subscriber’s TV screen with a reporting telephone number and a request for the subscriber to call
the operator to manually report the ID information.
Headend ID Validation
The cable operator records the reported IDs and their binding as a copy protection pair. If the devices are autho-
rized to receive copy-protected content, the CA System will send a validation message to the CableCARD device with
the validated IDs. After receiving and authenticating this message the CableCARD device checks that the received
IDs are the same as its current binding and if so enables delivery of copy protected content to the bound Host.
Copy Control Information
Copy control information (CCI) is passed from CableCARD device to Host across the data channel to inform the Host
device of the level of copy protection required. CCI is sent in the clear to the Host device,
Encryption of Copy Protected Content
All copy protected content will arrive at the Host device as a data stream encrypted by the service providers CA
System. This CA-encrypted stream passes from the Host to the CableCARD device while still protected by the CA
System. When fully bound to an authenticated and validated Host and authorized by the CA System the CableCARD
device removes the CA-encryption.
The CableCARD device passes content in one of four modes determined by CA System scrambling mode and EMI
values as detailed in Table 10.
· Clear: no change of CA-unscrambled and EMI=0 content which remains ‘in-the-clear’
· CA-only: descrambles CA-scrambled content marked EMI=0 for output ‘in-the-clear’
· Rescramble: CA-descrambles and CP-scrambles content marked EMI>0
· Pass-through: no change of CA-scrambled content (leaving it unrecognizable to the Host)
When selected, data packets of all selected and copy protected content from multiple simultaneous programs are
protected in the same manner with the same CPKey.
CP-Scrambling as a Function of CA-Scrambling and EMI Value
The CableCARD device SHALL apply copy protection scrambling of content flowing to the Host as
shown in Table 10.
CP-Scrambling Based on CA-Scrambled State and EMI Value
APS Description
0 Copy Protection Encoding Off
1 AGC Process On, Split Burst Off
10 AGC Process On, 2 Line Split Burst On
11 AGC Process On, 4 Line Split Burst On