| 摘要 |
<p>To realize a pulse detector that can carry out effective noise countermeasures while the processing load of the device is reduced, a pulse detector (100) includes a pulse wave sensor (10); a pulse wave signal filtering section (200) having a first adaptive filter (202a) and second adaptive filter (202b) for adaptively filtering a pulse wave signal, either of the adaptive filters being used in a selective fashion, and an adaptive filter switching section (17) for switching the adaptive filter to be used in a first interval in which the pulse wave sensor is continuously operating; and a pulse wave frequency analyzer (400), wherein the adaptive filter switching section (17) starts the adaptive processing of the second adaptive filter (202b) at a first time point partway through a second interval in which the first adaptive filter (202a) is continuously carrying out adaptive processing, where the second interval occurs in the first interval, and switches from the first adaptive filter (202a) to the second adaptive filter (202b) at a second time point, which is a time point after the first time point and which is the end point of the second interval.</p> |
