Digital television transmitter/receiver and method of...

Details Digital television transmitter/receiver and method of... Digital television transmitter/receiver and method of...

H - Electricity

04

N

H04N 7/26 (2006.01) H03M 13/25 (2006.01) H04N 7/64 (2006.01)

Patent

CA 2560381

A digital television transmitter and a method of coding main and enhanced data in the digital television transmitter are disclosed. In the digital television transmitter, a byte-symbol converter converts main and enhanced data packets into symbols, wherein at least one of the enhanced data packets may include data place holders for known data symbols. A known data generator generates a known data symbol. A symbol processor processes a first symbol outputted from the byte-symbol converter. Herein, the symbol processor may post-decode a first bit of the known data symbol and output the post-decoded bit and an initialization data bit when the first symbol is a symbol representing one of the place holders. A trellis encoder has one or more memories for trellis-encoding a second symbol outputted from the symbol processor, wherein the memories are initialized when the initialization data bit is processed in the trellis encoder.

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