Pulsimeter, frequency analysis device, and pulse measurement method
AssigneeRenesas Electronics Corporation
InventorsAkane HIROSHIMA, Naoya TOKIMOTO, Yuji SHIMIZU
Life of this patent
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Abstract
An object of the invention is to shorten a measurement time while preventing deterioration in resolution during frequency analysis and preventing a reduction in measurement range. A pulsimeter (1) includes a pulse data acquisition unit (100), a replication unit (16), and a frequency analysis unit (17). The replication unit (16) generates, when the number of pieces of acquired sampling data for a pulse rate calculation reaches n, m pieces of sampling data using the n pieces of sampling data and data obtained by replicating n-th sampling data. The frequency analysis unit (17) performs a frequency analysis on the m pieces of sampling data.
Claims12
A pulsimeter comprising:
- a pulse data acquisition unit that sequentially acquires sampling data for a pulse rate calculation;
- a replication unit that generates, when the number of pieces of acquired sampling data reaches n (n is a positive integer), m (m is a positive integer, and m>n) pieces of sampling data using the n pieces of sampling data and data obtained by replicating n-th sampling data;
- a frequency analysis unit that performs a frequency analysis on the m pieces of sampling data;
- and
- a first pulse rate calculation unit that calculates a pulse rate based on a result of the analysis by the frequency analysis unit.
A frequency analysis device comprising:
- a data acquisition unit that sequentially acquires sampling data;
- a replication unit that generates, when the number of pieces of acquired sampling data reaches n (n is a positive integer), m (m is a positive integer, and m>n) pieces of sampling data using the n pieces of sampling data and data obtained by replicating n-th sampling data;
- and
- a frequency analysis unit that performs a frequency analysis on the m pieces of sampling data.
A pulse measurement method comprising:
- a pulse data acquisition step of sequentially acquiring sampling data for a pulse rate calculation;
- a replication step of generating, when the number of pieces of acquired sampling data reaches n (n is a positive integer), m (m is a positive integer, and m>n) pieces of sampling data using the n pieces of sampling data and data obtained by replicating n-th sampling data;
- a frequency analysis step of performing a frequency analysis on the m pieces of sampling data;
- and
- a first pulse rate calculation step of calculating a pulse rate based on a result of the analysis in the frequency analysis step.
Dependencies are inferred from the claim text.