Signal detector apparatus
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United States of America Patent
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-
Aug 20, 1985
Grant Date -
N/A
app pub date -
Jul 26, 1983
filing date -
Jul 26, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A signal detection circuit having a balanced modem is described. A switching circuit responsive to a selected linear input signal provides a square wave having the same frequency as the linear input signal. The modem, using a DC bias provided from the square-wave signal, is responsive to the square wave and linear input signals for providing a DC output having a magnitude proportional to the magnitude of the selected linear input signal.
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