Digital VSB transmission system

Details Digital VSB transmission system Digital VSB transmission system

2005-12-27

2005-12-27

Burd, Kevin (Department: 2631)

Pulse or digital communications

Transmitters

C375S301000, C370S535000, C714S792000

Reexamination Certificate

active

06980603

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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