Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Patent
1998-12-22
2000-09-12
Hsia, Sherrie
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
348914, H04N 5213
Patent
active
061184950
ABSTRACT:
Training signal for channel equalization is located in the initial data segment of each DTV data field and in the nineteenth scan line of each NTSC field. Arranging for training signal separated from plural PN sequences near the beginnings of the initial data segments of DTV data fields improves post-ghost detection capability in the DTV system. In receivers for receiving NTSC signals and DTV signals, arranging for training signal to be separated from plural PN sequences near the beginnings of the nineteenth scan line of each NTSC field facilitates the same ghost-cancellation and channel-equalization filtering being used both during the reception of NTSC signals and during the reception of DTV signals.
REFERENCES:
patent: 5886748 (1999-03-01), Lee
C. M. Zhao, X.Y. Hu and X.H. Yu, "Block Sequential Least Squares Decision Feedback Equalization Algorithm with Application to Terrestrial HDTV Transmission", Sep. 1998, IEEE Transactions on Broadcasting, vol. 44, No. 3.
Limberg Allen LeRoy
Patel Chandrakant B.
Bushnell Esq. Robert E.
Hsia Sherrie
Samsung Electronics Co,. Ltd.
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