Alterable frequency response electrocardiographic amplifier
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United States of America Patent
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Jan 22, 1985
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N/A
app pub date -
Nov 12, 1982
filing date -
Nov 12, 1982
priority date (Note) -
Expired
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Abstract
An electrocardiographic amplifier having an integrator in the feedback loop between the amplifier's input and output whose time constant is varied by the duty cycle of a series switch to vary the low frequency 3 dB roll-off point as a function of the detected low frequency noise in the amplifier output signal. A capacitor is switched in parallel with the inverting feedback resistor to lower the high frequency 3 dB roll-off point in response to detected high frequency noise.
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