NTSC rejection filter with switched tomlinson precoder for reducing NTSC co-channel interference in ATV receivers
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United States of America Patent
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Feb 11, 1997
Grant Date -
N/A
app pub date -
Feb 10, 1995
filing date -
Feb 10, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A digital advanced television (ATV) receiver includes a multi-tap feedforward filter for reducing NTSC co-channel interference in a received ATV signal. A complementary Tomlinson precoder is used to compensate the transmitted ATV signal for inter-symbol interference (ISI) created in the receiver by the feedforward NTSC rejection filter. Data components of the transmitted signal are non-linearly precoded while synchronization components are linearly precoded to improve sync recovery S/N performance in the receiver.
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