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0 Replies Latest reply: Jul 29, 2009 11:31 PM by 843851 RSS

How is scrambled EIT descrambled

843851 Newbie
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In Digital Video and Audio Broadcasting Technology book, it is said PSI and SI table are unscrambled except EIT.

I wanted to know how is scrambled EIT descrambled ? i.e. who extracts ECM for EIT and gives to CAM or CAM itself extracts the ECM for EIT as EIT pid is fixed ?

(In case of DVB-CI CAM, for scrambled audio & video, ECM is extracted from PMT and sent to the CAM for descrambling of the audio and video )

Would be thankful for your replies.......