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US 12,178,558 B2Granted
Biometric information processing apparatus and biometric information processing method
AssigneeSony Corporation
InventorYasuhide Hyodo
Life of this patent
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Abstract
To provide a biometric information processing apparatus capable of reducing noise caused by body motion in measuring blood flow velocity. To provide a biometric information processing apparatus including: a first filter unit that selects a first frequency band on the basis of a beat interval, causes a signal of the first frequency band from a blood flow velocity signal to pass through, and extracts a beat component signal.
Claims8
A biometric information processing apparatus, comprising:
- a blood flow velocity calculation unit configured to:
- acquire a beat signal;
- execute a blood flow velocity calculation process based on the beat signal;
- and
- output a blood flow velocity signal based on the execution of the blood flow velocity calculation process;
- and
- a first filter unit configured to:
- acquire beat interval information;
- select a first frequency band based on the beat interval information;
- execute a first filter process on the blood flow velocity signal based on the first frequency band;
- and
- extract, based on the execution of the first filter process, a first signal, of the first frequency band, from the blood flow velocity signal, wherein the first signal is extracted as a beat component signal.
9 more elements
A biometric information processing method, comprising:
- acquiring a beat signal;
- executing a blood flow velocity calculation process based on the beat signal;
- outputting a blood flow velocity signal based on the execution of the blood flow velocity calculation process;
- acquiring beat interval information;
- selecting a first frequency band based on the beat interval information;
- executing a filter process on the blood flow velocity signal based on the first frequency band;
- and
- extracting, based on the execution of the filter process, a signal, of the first frequency band, from the blood flow velocity signal, wherein the signal is extracted as a beat component signal.
5 more elements
Dependencies are inferred from the claim text.