Apparatus and method for monitoring the waveform of cyclic movement within the thorax of an individual
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United States of America Patent
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-
Nov 6, 1990
Grant Date -
N/A
app pub date -
May 4, 1988
filing date -
May 4, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A carrier-frequency signal transmitted through the individual's thorax from a first module to a second module, is modulated at the second module and retransmitted back through the individual's thorax to the first module. An attribute (e.g., doppler frequency shift or amplitude variation) of solely the modulation component of the signal received by the first module is employed to monitor the waveform of cyclic movement (e.g., breathing rate) within the individual's thorax.
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