Decoding method and multimedia playing system
AssigneeStar Semiconductor Corporation
InventorsYou-Tsai JENG, Tai-Lai TUNG, Tung-Sheng LIN, Ching-Fu LAN
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Abstract
By inserting a symbol start tag at a start of a data segment corresponding to each symbol of a multimedia data stream, and by inserting frame start tags at starts of different frames in a start data segment, data signals belonging to different channels can be precisely and rapidly classified and decoded when the multimedia data stream is performed with demodulation.
Claims16
A decoding method applied to a multimedia playing system for decoding a multimedia data stream having a plurality of data segments, each of the data segments comprising a plurality of data sub-segments, comprising:
- providing a plurality of first tags respectively corresponding to the data segments, and providing a plurality of second tags respectively corresponding to data sub-segments of an initial data segment among the data segments;
- positioning the data segments according to the first tags, positioning the data sub-segments of each of the data segments according to the second tags, and accordingly processing the data sub-segments of each of the of data segments, respectively;
- and
- decoding the processed data sub-segments of each of the data segments to generate a plurality of multimedia sub-segments according to the second tags.
A decoding method applied to a multimedia playing system for decoding a multimedia data stream having a plurality of data segments, each of the data segments comprising a plurality of data sub-segments, comprising:
- providing a plurality of first tags respectively corresponding to the data segments;
- providing a plurality of second tags respectively corresponding to data sub-segments of an initial data segment of the data segments;
- positioning the data sub-segments in each of the data segments according to the first tags and the second tags, and accordingly determining demodulations to be performed for the data sub-segments in each of the data segments, respectively, and generating an informing signal;
- demapping and bit de-interleaving the data sub-segments in each of the data segments according to the informing signal to generate a plurality of de-interleaved data sub-segments for each of the data segments;
- demodulating the de-interleaved data sub-segments for each of the data segments according the determined demodulations, respectively, to generate a plurality of demodulated data sub-segments;
- and
- decoding the demodulated data sub-segments according to the second tags to generate a plurality of multimedia sub-segments.
A multimedia playing system, for decoding a multimedia data stream having a plurality of data segments, each of the data segments comprising a plurality of data sub-segments, comprising:
- a time de-interleaver, configured for providing a plurality of first tags respectively corresponding to the data segments of the multimedia data stream and providing a plurality of second tags respectively corresponding to data sub-segments of an initial data segment of the data segments;
- an interface module, configured for positioning the data sub-segments in each of the data segments according to the first tags and the second tags, and accordingly generating a control signal an informing signal;
- a demapper and a bit de-interleaver, configured for demapping and bit de-interleaving the data sub-segments in each of the data segments according to the informing signal to generate a plurality of de-interleaved data sub-segments for each of the data segments;
- a plurality of demodulation modules, configured for receiving and demodulating the de-interleaved data sub-segments, respectively, according to the control signal to generate a plurality of modulated data sub-segments;
- and
- a decoding module, configured for decoding the plurality of modulated data sub-segments according to the second tags to generate a plurality of multimedia sub-segments.
Dependencies are inferred from the claim text.