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Registered DIGITAL TELEVISION TRANSMISSION AND RECEIVING APPARATUS AND METHOD USING 1/4 RATE CODED ROBUST DATA
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DIGITAL TELEVISION TRANSMISSION AND RECEIVING APPARATUS AND METHOD USING 1/4 RATE CODED ROBUST DATA
- Inventors
- Sung-Hoon Kim, Seung Won Kim, Ji Kum Ran, Lee Jae-Young, Lee Soo In, Chieteuk Ahn
- Application No.
- 11575242 (2005.09.15)
- Publication No.
- 20090201997 (2009.08.13)
- Registration No.
- 8638860 (2014.01.28)
- Country
- UNITED STATES
- Project Code
- 04MR1100, Development of Super-intelligent Multimedia Anytime-anywhere Realistic TV (SmarTV) Technology, Chieteuk Ahn
- Abstract
- 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
- KSP Keywords
- Data stream, Robust data, Side band, Television system, Transmission Rate, Vestigial side band(VSB), Video data, digital television(DTV), digital video, one-bit, rate coding, stream structure