Filter for broadcast receiver tuner
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United States of America Patent
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Jan 2, 2007
Issued Date -
N/A
app pub date -
Jan 18, 2002
filing date -
Jan 18, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
A Gaussian family filter (e.g. an equiripple filter) comprises a first pole, a second pole, a third pole and a signal combiner. The first pole has a biquadratic low pass characteristic and is configured to provide a first low pass signal. The second pole is coupled to the first low pass signal, the second pole having a first-order low pass characteristic, and providing a second low pass signal and a high pass signal. The third pole is coupled to the second low pass signal and has a biquadratic low pass characteristic for generating a third low pass signal. The signal combiner is configured to combine the third low pass signal and the high pass signal to provide a combined signal.
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