Pulse wave detecting apparatus
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United States of America Patent
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Dec 15, 1992
Grant Date -
N/A
app pub date -
Feb 20, 1991
filing date -
Mar 1, 1990
priority date (Note) -
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Abstract
A pulse wave detecting apparatus, including a pulse wave sensor having a press surface on which a plurality of pressure sensing elements are provided in an array, a main device receiving an electric signal from each of the pressure sensing elements, a determining device determining a correlation between a distribution of magnitudes of the electric signals as taken along the array of pressure sensing elements, and each of a plurality of predetermined reference distributions which is indicative of a corresponding one of a plurality of different relative positions of the array of pressure sensing elements with respect to the blood vessel, a selecting device selecting one of the reference distributions which provides the greatest correlation of all the correlations determined by the determined device, and a transmitting device transmitting to the main device the electric signals generated from the pressure sensing elements in a portion of the array of pressure sensing elements which portion corresponds to the relative position indicated by the reference distribution selected by the selecting device.
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