Signal processor, signal processing method, and recording medium
AssigneeFujitsu Limited
InventorsKazuho MAEDA, Masato SAKATA, Daisuke UCHIDA, Akihiro INOMATA
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Abstract
A pulse wave detection apparatus detects a signal, and calculates a correlation coefficient between waveforms of the signal included in a first window and a second window having a predetermined duration, the correlation coefficient being smaller when a difference between dispersion of the amplitude value in the first window and dispersion of the amplitude value in the second window becomes larger.
Claims8
A signal processor comprising:
- a memory;
- and
- a processor coupled to the memory, wherein the processor executes a process comprising:
- detecting a signal;
- and
- calculating a correlation coefficient between waveforms of the signal included in a first window and a second window having a predetermined duration, the correlation coefficient being smaller when a difference between dispersion of the amplitude value in the first window and dispersion of the amplitude value in the second window becomes larger.
A signal processing method comprising:
- detecting, using a processor, a signal;
- and
- calculating, using the processor, a correlation coefficient between waveforms of the signal included in a first window and a second window having a predetermined duration, the correlation coefficient being smaller when a difference between dispersion of the amplitude value in the first window and dispersion of the amplitude value in the second window becomes larger.
A computer readable recording medium having stored therein a signal processing program that causes a computer to execute a process comprising:
- detecting a signal;
- and
- calculating a correlation coefficient between waveforms of the signal included in a first window and a second window having a predetermined duration, the correlation coefficient being smaller when a difference between dispersion of the amplitude value in the first window and dispersion of the amplitude value in the second window becomes larger.
Dependencies are inferred from the claim text.