Television – Image signal processing circuitry specific to television – Noise or undesired signal reduction
Patent
1995-01-13
1996-06-25
Metjahic, Safet
Television
Image signal processing circuitry specific to television
Noise or undesired signal reduction
375231, 36472420, H04N 521
Patent
active
055304850
ABSTRACT:
A channel equalizer for a high definition television that enhances the convergent speed of the channel equalizer by renewing first a filter coefficient of a near ghost image and then renewing a filter coefficient of a far ghost image, after distinguishing the filter coefficient corresponding to the near ghost image from the filter coefficient corresponding to the far ghost image. The equalizer comprises a finite impulse response filter for performing channel equalization on an input signal input from outside of the channel equalizer, the finite impulse response filter uses a previous filter coefficient corresponding to a near ghost image and a previous filter coefficient corresponding to a far ghost image to determine an output signal, and a filter coefficient renewal part for sequentially computing a present filter coefficient corresponding to a near ghost and a present filter coefficient corresponding to a far ghost using the output signal from the finite impulse response filter and a training sequence signal input from outside of the channel equalizer and for outputting the previous filter coefficient corresponding to the near ghost image and the previous filter coefficient corresponding to the far ghost image.
REFERENCES:
patent: 5117291 (1992-05-01), Fadavi-Ardekani et al.
patent: 5204878 (1993-04-01), Larsson
patent: 5247541 (1993-09-01), Nakai
patent: 5283811 (1994-02-01), Chennakeshu et al.
patent: 5297166 (1994-03-01), Batruni
patent: 5319585 (1994-06-01), Amrany
patent: 5331416 (1994-01-01), Patel et al.
patent: 5345274 (1994-09-01), Matsunaga
patent: 5363144 (1994-11-01), Park
Kim Myung S.
Park Hee B.
LG Electronics Co., Ltd.
Metjahic Safet
Murrell Jeffrey S.
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