| 摘要 |
PROBLEM TO BE SOLVED: To provide a biological information measurement circuit capable of measuring a respiratory cycle of a subject on the basis of the output of an acceleration sensor even during running and jogging.SOLUTION: A biological information measurement circuit 20 includes: a controller 24 that, based on measurement data showing an acceleration detected by an acceleration sensor 10, measures a cycle of one step or double steps when a subject is walking or running, and sets the cycle as a unit period; a storage part 22 that stores the measurement data showing an acceleration in a front direction detected by the acceleration sensor 10 at least in the unit period; and an operation part 20 that obtains difference data showing the difference between the measurement data showing the acceleration in a front direction detected by the acceleration sensor 10 in the first unit period and stored in the storage part 22, and the measurement data showing the acceleration in a front direction detected by the acceleration sensor 10 in the second unit period different from the first unit period, and obtains a respiratory cycle on the basis of the difference data. |
