16.4. The Picture-in-Picture Design Example
16.4.1. Functional Description
The application example that we consider here is called picture-in-picture (PiP), part of a digital set-top-box with PiP capabilities, which was originally developed by Philips in the context of the ESPRIT 25443 COSY project [677].
The set-top-box user has the possibility of watching a main channel and having at the same time a secondary small picture, inside the main picture, showing another channel. The user can tune parameters like position and size of the picture, frame color, and frame size for both the main and secondary channels.
Figure 16-6. Example of derivation of a Petri net. (a) Meta-model. (b) Intermediate code model.(c) Petri net model.
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