Direct conversion FSK receiver using frequency tracking filters
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United States of America Patent
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Sep 19, 1995
Grant Date -
N/A
app pub date -
Sep 8, 1994
filing date -
Sep 14, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
In a direct conversion receiver in which received radio frequency signals are mixed with quadrature local oscillator signals in I and Q channels, the output signals from the mixers are applied to a phase detector by way of respective frequency tracking filters to reduce the noise bandwidth and improve the sensitivity.
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