Method for tuning soft data in multimedia data stream and soft data demapper
A multimedia and data stream technology, which is applied in a field of adjusting soft data in multimedia data streams, can solve problems such as error digital TV signal playback quality, etc.
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[0025] see figure 2 , which is a schematic diagram of the soft data demapper 100 disclosed according to an embodiment of the present invention. Such as figure 2 As shown, the soft data demapper 100 includes a soft data generator 110 , a scale factor determination module 120 , a channel response generation module 130 , and a dynamic channel adjustment module 140 .
[0026] The soft data generator 110 is used to calculate a plurality of soft data SD1 contained in a received multimedia data stream MDS.
[0027] The adjustment factor determination module 120 is used to query the correspondence between the channel information FI and the encoding rate information CI in a look-up table stored in the adjustment factor determination module 120 according to a channel information FI and a coding rate information CI stored in the multimedia data stream MDS An adjustment factor SF of , wherein the manner of inquiring the look-up table to determine the adjustment factor SF will be expla...
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Application Information
- IPC
- H04N21/435; H04N21/235; H04N21/45
- Inventors
- 郑有财; 童泰来