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I am currently researching the construction and functionality of set top boxes for services such as Sky + and Freeview.

I need to understand if and how a database structure would be used in terms of the operation of such hardware.

As these devices are accessing libraries of ‘tv programme/channel’ data I can only imagine that a database must form part of the set up, not least to query to achieve an on screen result.

I cannot find anything in these box technical specification to suggest that though. I have found out a little about IMDs, In-memory databases but I don’t really understanding the workings of these - can anyone help?

Dragos
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    This isn't a real electronics question. in-memory database – ElectroNoob Jul 18 '12 at 08:45
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    Sky and Freeview adhere to the DVB standard. You want to read ETSI EN 300 468 and learn about decoding SI tables to construct an EPG. http://tsfriend.googlecode.com/files/DVB%E6%8A%80%E6%9C%AF.pdf – Toby Jaffey Jul 18 '12 at 08:50
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    @TobyJaffey - why not make that excellent information an answer. If they migrate it the answer goes with it. If they close it the answer is still useful. If it stays as a questsion then that may be the best answer going. – Russell McMahon Jul 18 '12 at 08:55
  • @RussellMcMahon Done, I just figured it was going to get closed pretty quickly – Toby Jaffey Jul 18 '12 at 09:21
  • This has the phrasing of a homework question. – pjc50 Jul 18 '12 at 09:40
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    @Russell - I had a discussion about a similar thing with Kortuk. I understand your reasoning about migrating. But if the question is just closed because off-topic, we have ans answer which is off-topic as well. It may be useful, but so may a recipe for Brussels sprouts be, as I also said to Kortuk. I think off-topic questions shouldn't get answers. – stevenvh Jul 18 '12 at 09:55
  • @stevenvh - to each his own. I consider answers like that a valuable resource for people designing overall systems. Some won't. – Russell McMahon Jul 18 '12 at 16:19

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Sky and Freeview adhere to the DVB standard. You want to read ETSI EN 300 468 and learn about decoding SI tables to construct an EPG.

Toby Jaffey
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