Low noise detection system using log detector amplifier
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United States of America Patent
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Nov 22, 2016
Grant Date -
Jun 5, 2014
app pub date -
Dec 3, 2013
filing date -
Dec 3, 2012
priority date (Note) -
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Abstract
A low noise detection system is disclosed in which a modulator located in a transmitter or a receiver is configured to convert a voltage data signal to a frequency signal, to modulate a baseband signal with the voltage data, and to output the modulated data signal. The receiver further includes a log detection amplifier configured to receive the modulated data signal and to regeneratively demodulate the modulated data signal to extract the data in an amplified analog data signal while not significantly amplifying any noise in the modulated data signal. The receiver further includes a digital conversion circuit for converting the amplified analog signal into a digital data signal.
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