Digital VSB transmission system
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United States of America Patent
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Dec 27, 2005
Grant Date -
Oct 24, 2002
app pub date -
Nov 16, 2001
filing date -
Apr 20, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A digital VSB transmission system in disclosed. The system is compatible with the existing ATSC 8T-VSB receiver and able to transmit additional supplemental data as well as MPEG image/sound data. It initially encodes the information bit of the supplemental data with a ½ encoding rate in order to produce a parity bit and sends the parity bit together with the information bit. Therefore, both of the MPEG image/sound data and the supplemental data can be transmitted properly even through a channel having a high ghost and/or noise level. Particularly, it can significantly improve performances of the slicer predictor and trellis decoder of the VSB receiver.
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