发明名称 |
DIGITAL TELEVISION TRANSMISSION AND RECEIVING APPARATUS AND METHOD USING 1/4 RATE CODED ROBUST DATA |
摘要 |
Provided is a Vestigial Side Band Digital Television (DTV) transmitter/receiver based on Advanced Television System Committee A/53. The invention provides DTV transmitter/receiver having a dual stream structure through generation of robust data which has a transmission rate a fourth as fast as that of normal data, and a method thereof. The DTV transmitter includes: input means for receiving digital video data stream including normal and robust data; encoding means for performing ¼ rate coding on the digital video data stream so that one bit can be transmitted through two symbols; and transmitting means for modulating/transmitting output signals of the encoding means. This invention can reduce SNR and satisfy TOV of robust data by performing additional FEC on robust data, transmitting/receiving ¼ rate coded robust data, which are capable of transmitting one-bit data for two symbols, and improving decoding ability of an equalizer and a trellis decoder of a DTV receiver.
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申请公布号 |
US2009201997(A1) |
申请公布日期 |
2009.08.13 |
申请号 |
US20050575242 |
申请日期 |
2005.09.15 |
申请人 |
KIM SUNG-HOON;JI KUM-RAN;LEE JAE-YOUNG;KIM SEUNG-WON;LEE SOO-IN;AHN CHIETEUK |
发明人 |
KIM SUNG-HOON;JI KUM-RAN;LEE JAE-YOUNG;KIM SEUNG-WON;LEE SOO-IN;AHN CHIETEUK |
分类号 |
H04N7/12;H04N5/00;H04N5/38;H04N7/24 |
主分类号 |
H04N7/12 |
代理机构 |
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