Abstract: A system for displaying a first data signal and a second data signal is disclosed. The system includes: a decoder, for selectively decoding the first data stream to output a first decoded signal or the second data stream to output a second decoded signal according to a command signal; and a frame buffer, for receiving the first decoded signal or the second decoded signal to output a first video signal or a second video signal respectively; wherein when the decoder stops outputting the first decoded signal and starts outputting the second decoded signal, the frame buffer will buffer a last received frame of the first decoded signal, and when the decoder stops outputting the second decoded signal and starts outputting the first decoded signal, the frame buffer will buffer a last received frame of the second decoded signal.

Abstract: A multimedia display system, a multimedia display apparatus and a method thereof are provided. The multimedia display system comprises a demultiplexer, the multimedia display apparatus, and a mixer. The multimedia display apparatus comprises a first decoder, a second decoder, and an interface. The demultiplexer demultiplexes a first signal to generate a first source and demultiplexes a second signal to generate a second source. The first decoder decodes the first source in a first type. The second decoder decodes the second source in a second type. The interface simultaneously outputs the decoded first source in the first type and the decoded second source in the second type.