| 摘要 |
A system for processing data streams in MPEG format has a system controller ( 110 ) and an MPEG decoder ( 115 ), a memory ( 121 ) for storing data streams, a demodulator ( 151 ), a signal controller ( 140 ), which contains a signal processing system ( 142 ) and a digital part ( 141 ) of a modulator and an analog part ( 131 ) of which constitutes a separate system block. The signal processing system ( 142 ) of the signal controller ( 140 ) is connected with the demodulator ( 151 ), the digital part ( 141 ) of the modulator connected with its analog part ( 131 ) and the processor ( 113 ) of the system controller. The signal processing system ( 142 ) of the signal controller ( 140 ) receives digital data stream from the demodulator ( 151 ) and from the processor ( 113 ) and after processing them, it sends the output stream to the digital part ( 141 ) of the modulator and to the processor ( 113 ).
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