117
Figure 63 – Streaming Video from a COM24 Card
10.2
Preventing Pro:Idiom key loss
Each commercial TV that supports Pro:Idiom decryption must contain a copy of the secret
Pro:Idiom decryption keys. These keys can be corrupted which will prevent the TVs from
decrypting Pro:Idiom encrypted video until the TV is re-keyed. The main way that Pro:Idiom
TVs lose their keys is as follows:
A Pro:Idiom encrypted channel is being watched. The Pro:Idiom keys are sent on a different
PID for each video channel. The TV is asked to change channels to a different QAM carrier
which causes the TV‟s tuner to receive a different transport stream. This new transport stream
contains non-Pro:Idiom key packet on the same PID that previously contained Pro:Idiom key
packets. These are normally audio packets. The Pro:Idiom chip incorrectly interprets these
audio packets as Pro:Idiom key packets. This confuses the Pro:Idiom chip and causes it to lose
its keys.
The QAM24 modulator solves this problem by automatically moving only the Pro:Idiom key
packets to a high PID range that is only used for Pro:Idiom key packets. If a non-Technicolor
piece of equipment is sending packets in the high PID range that overlaps the Pro:Idiom key
PIDs then contact Technicolor for how to modify the QAM24‟s Pro:Idiom key PIDs.
To minimize the possibility of Pro:Idiom key loss when using other QAM modulators, the
COM24 will only output a single audio stream. To enable a second audio stream set the
Stream_ID to 54000.
Содержание COM1000
Страница 1: ...REV 2 72 DIRECTV COM1000 Integrator s Manual Software Version ST02 08 07 ...
Страница 8: ...8 THIS PAGE IS INTENTIONALLY BLANK ...
Страница 9: ...9 THIS PAGE IS INTENTIONALLY BLANK ...
Страница 16: ...16 content compression type and it will stream either MPEG 2 or MPEG 4 encoded transport streams ...
Страница 29: ...29 Figure 10 COM24FLX to SWM Module connections ...
Страница 39: ...39 Figure 17 Tftpd32 Settings Window Global Settings ...
Страница 40: ...40 Figure 18 Tftpd32 Settings Window TFTP Settings ...
Страница 45: ...45 Figure 24 Discover Page w COM24FLX ...
Страница 62: ...62 See device labeled Exhaust Fan 2 in Figure 3 in Section 3 2 ...
Страница 88: ...88 Figure 46 COM1000 EPG Page Configured ...
Страница 102: ...102 The results of the upgrade in Figure 55 is shown in Figure 56 Figure 56 Multi card COM24 SW Upgrade Results ...
Страница 106: ...106 Figure 59 shows the results of starting a QAM24 SW upgrade Figure 59 QAM24 SW Upgrade Results ...
Страница 111: ...111 The directory path and filename do not exceed the maximum limit of 200 characters ...
Страница 129: ......