Use of a Multiplexer to get Multiple Streams Through a Limited Interface : Encapsulation of digital video broadcasting streams

Sammanfattning: In digital video broadcasting, sometimes many sources are used. When handling this broadcast a problem is a limited interface that has a fixed number to input channels but overcapacity in data transfer rate. To be able to connect more inputs to the interface a protocol that lets the user send more than one channel on a connection is needed. The important part for the protocol is that it keeps the input equal to the output both in timing and in what data is sent. These are done by encapsulating the data and use a header containing information for recreating the input. To solve the timing constraint dynamic buffer are used that makes all data evenly delayed. To validate the functionality of the protocol a test designed is implemented in VHDL and simulated.