BIOSIGNAL MEASUREMENT APPARATUS AND BIOSIGNAL MEASUREMENT METHOD
First Claim
1. A biosignal measurement apparatus comprising:
- a potential difference measurement unit configured to measure a potential difference between a plurality of electrodes placed on a user'"'"'s chest;
an ECG obtainment unit configured to obtain an electrocardiogram (ECG) indicating a temporal variation of a cardiac potential of the user, from the potential difference measured by the potential difference measurement unit;
an impedance measurement switching unit configured to determine a start timing of a first period which is a period not including an R wave, using the ECG obtained by the ECG obtainment unit;
an impedance measurement unit configured to measure an impedance between the plurality of electrodes in the first period; and
a respiratory calculation unit configured to calculate respiratory information related to respiration of the user, based on a temporal variation of the impedance measured by the impedance measurement unit.
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Accused Products
Abstract
A biosignal measurement apparatus includes: a potential difference measurement unit that measures a potential difference between a plurality of electrodes of an electrode unit placed on a user'"'"'s chest; an ECG analysis unit that obtains an electrocardiogram (ECG) indicating a temporal variation of a cardiac potential of the user, from the potential difference measured by the potential difference measurement unit; an impedance measurement switching unit that determines a start timing of a first period which is a period not including an R wave, using the ECG obtained by the ECG analysis unit; an impedance measurement unit that measures an impedance between the plurality of electrodes in the first period; and a respiratory calculation unit that calculates respiratory information related to respiration of the user, based on a temporal variation of the impedance measured by the impedance measurement unit.
17 Citations
15 Claims
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1. A biosignal measurement apparatus comprising:
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a potential difference measurement unit configured to measure a potential difference between a plurality of electrodes placed on a user'"'"'s chest; an ECG obtainment unit configured to obtain an electrocardiogram (ECG) indicating a temporal variation of a cardiac potential of the user, from the potential difference measured by the potential difference measurement unit; an impedance measurement switching unit configured to determine a start timing of a first period which is a period not including an R wave, using the ECG obtained by the ECG obtainment unit; an impedance measurement unit configured to measure an impedance between the plurality of electrodes in the first period; and a respiratory calculation unit configured to calculate respiratory information related to respiration of the user, based on a temporal variation of the impedance measured by the impedance measurement unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A biosignal measurement method comprising:
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measuring a potential difference between a plurality of electrodes placed on a user'"'"'s chest; obtaining an electrocardiogram (ECG) indicating a temporal variation of a cardiac potential of the user, from the measured potential difference; determining a start timing of a first period which is a period not including an R wave, using the obtained ECG; measuring an impedance between the plurality of electrodes in the first period; and calculating respiratory information related to respiration of the user, based on a temporal variation of the measured impedance. - View Dependent Claims (15)
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Specification