DECODING METHOD AND MULTIMEDIA PLAYING SYSTEM
First Claim
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1. 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.
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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.
26 Citations
16 Claims
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1. 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:
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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. - View Dependent Claims (2, 3, 4, 5, 6)
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7. 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:
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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. - View Dependent Claims (8, 9, 10, 11)
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12. 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:
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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. - View Dependent Claims (13, 14, 15, 16)
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Specification