Line noise signal measurement system using analog signal compression with digital linearity correction
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United States of America Patent
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Jul 10, 1990
Grant Date -
N/A
app pub date -
Feb 28, 1989
filing date -
Feb 28, 1989
priority date (Note) -
Expired
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Abstract
A line noise signal measurement system is provided with detecting circuitry for providing a sensed analog signal. Compression circuitry is coupled to the detecting circuitry for providing an amplitude compressed signal responsive to the applied sensed signal. The compression circuitry has a stepwise substantially linear transfer function responsive to a variable magnitude of the applied sensed signal. Signal processing circuitry is coupled to the compression circuitry for sequentially generating a digital signal representative of the sensed analog signal. Digital processing circuitry sequentially identifies a maximum peak signal for a predetermined time interval and provides linearity correction for the identified maximum peak signals and generates a display of the corrected peak signals.
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