Bed occupant monitoring system
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United States of America Patent
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Nov 2, 2010
Issued Date -
N/A
app pub date -
Jan 22, 2008
filing date -
Jul 17, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention provides a bed occupant monitoring system comprising a pressure sensitive member attached to a support member for supporting a bed occupant, the pressure sensitive member comprising a plurality of pressure sensors. Each of the pressure sensors is configured to provide a reflected wave energy pressure signal by reflecting incident wave energy with an intensity which varies with a pressure applied to the sensor. A pair of fibers are coupled to each pressure sensor, each pair of fibers comprising an input fiber and an output fiber. The fibers are coupled to interface electronics comprising a wave energy source coupled to the input fiber of each of the pairs of fibers for providing the applied light energy, and, a wave energy detector coupled to the output fiber of each of the pairs of fibers for converting the scattered light energy into an electrical signal.
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Family
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