Method for monitoring living body activities, and optical fiber type flat shaped body sensor, garment styled optical fiber type flat shaped body sensor and human body fitted optical fiber type flat shaped body sensor used for the same
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United States of America Patent
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Jun 26, 2012
Grant Date -
Sep 11, 2008
app pub date -
Feb 27, 2008
filing date -
Aug 30, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A living body monitoring activity system detects major activities, or feeble living body activities. In a method for monitoring existence of human movements or living body activities in living environments (e.g., sleeping activities involving a bed, a Futon-mat, a pad, or a Tatami-mat), an optical fiber type flat shaped body sensor including an optical fiber affixed or fitted to a flat shaped body is used, and light is emitted into the optical fiber from a light source, and changes of polarized wave conditions of light propagating in the optical fiber are brought about by changes in form of the optical fiber type flat shaped body sensor caused by human movements or living body activities and are detected by a measuring apparatus for polarized wave fluctuations so human activities or movements are discriminated based on the detected value of the polarized wave fluctuations.
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