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Interactive TV Standards by Anthony Smith-Chaigneau, Steven Morris

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3 Middleware Architecture

ITV middleware has a number of features that set it apart from other programming environments. This chapter examines these features, and provides a high-level overview of how an MHP or OCAP middleware stack is put together.

Before we start looking in any detail at the various parts of the OCAP or MHP middleware, we need to have a general understanding of what actually happens inside a DTV receiver that is built around these standards. If you are not familiar with the DTV world, you need to understand the constraints and the goals involved, and how they are different from the issues you would encounter working on a PC platform.

We also need a general understanding of how software stacks are put together, and how the ...

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