| 摘要 |
An apparatus for obtaining information related to a velocity at which a pulse wave propagates in a living subject, the apparatus including a pulse-wave sensor which is adapted to be worn on a body portion of the subject and detects the pulse wave from the body portion, an incident-wave-peak determining device for determining a peak of an incident-wave component which is contained in the pulse wave detected by the pulse-wave sensor, a reflected-wave-peak determining device for determining a peak of a reflected-wave component which is contained in the pulse wave detected by the pulse-wave sensor, and an information obtaining device for obtaining the information based on a time difference between the peak of the incident-wave component determined by the incident-wave-peak determining device and the peak of the reflected-wave component determined by the reflected-wave-peak determining device.
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