H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/015 (2006.01) H04L 1/00 (2006.01) H04L 25/03 (2006.01) H04L 27/02 (2006.01) H04L 27/34 (2006.01) H04N 7/24 (2006.01)
Patent
CA 2512670
The present invention relates to a Vestigial Side Band (VSB) Digital Television (DTV) in agreement with the DTV standards (A/53) of the Advanced Television System Committee (ATSC), and to a method thereof. More particularly, it provides 4-VSB DTV transceiver that improves reception performance of a receiver by transmitting and receiving dual streams formed of normal data and robust data without increasing average power, regardless of a mixing rate of the normal and robust data. The 4-VSB DTV transceiver of the present research includes an encoding unit for encoding the robust data to be mapped to one of two groups having 4 levels {-5, -3, 1, 7} and {-7, -1, 3, 5}.
L'invention concerne la télévision numérique (DTV) dans la bande latérale résiduelle (VSB) conformément aux normes DTV (A/53) du Comité des systèmes de sélection évolués (ATSC), et un procédé afférent. L'invention porte plus particulièrement sur un émetteur-récepteur DTV 4-VSB améliorant la qualité de réception d'un récepteur par transmission et réception de trains doubles formés de données normales et de données robustes sans augmentation de la puissance moyenne, quel que soit le dosage de mélange des données normales et robustes. L'émetteur-récepteur 4 VSB DTV de l'invention comprend une unité de codage conçue pour coder les données robustes à mapper avec un des deux groupes à 4 niveaux {-5, -3, 1, 7} et {-7, -1, 3, 5}.
Ahn Chieteuk
Ji Kum-Ran
Kim Dae-Jin
Kim Seung-Won
Kim Sung-Hoon
Electronics And Telecommunications Research Institute
Smart & Biggar
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