Apparatus and method for measuring pulse waves

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United States of America Patent

PATENT NO 8758259
APP PUB NO 20100081947A1
SERIAL NO

12534424

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Abstract

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Pulse waves of a subject are detected in time sequence. Amplitude of the pulse waves is detected, and an interval between two pulse waves adjacent along a time axis is detected. A first change ratio of the interval along the time axis, and a second change ratio of the amplitude divided by the interval along the time axis are calculated respectively. By comparing the first change ratio and the second change ratio with a first threshold and a second threshold respectively, it is decided whether the pulse waves of the subject are irregular.

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Patent Owner(s)

  • TDK CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Suzuki, Takuji Kanagawa-ken, JP 67 4236

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