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Biosignal measuring device, biosignal measuring method and biosignal program

  • US 9,706,931 B2
  • Filed: 02/22/2013
  • Issued: 07/18/2017
  • Est. Priority Date: 11/19/2012
  • Status: Active Grant
First Claim
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1. A biosignal-measuring device, comprising:

  • a first information acquisition module configured to acquire multiple pulse wave signals from a subject at a first position;

    a second information acquisition module configured to acquire multiple electrocardiogram signals from the subject at a second position different from the first position;

    a first calculation module configured to calculate multiple pulse wave velocities based on signals acquired by the first information acquisition module and the second information acquisition module;

    a second calculation module configured to calculate multiple heartbeat intervals based on the signals acquired by the first information acquisition module and the second information acquisition module;

    a third calculation module configured to calculate a relational expression between multiple pulse wave velocities and multiple heartbeat intervals;

    a heartbeat interval estimation module configured to estimate multiple estimated heartbeat intervals based on new multiple pulse wave velocities and the relational expression;

    a determination module configured to determine whether a position of at least one of the first information acquisition module or the second information acquisition module is changed based on multiple heartbeat intervals and multiple estimated heartbeat intervals; and

    an output module configured to output a notification based on the determination of the determination module.

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