| 摘要 |
PROBLEM TO BE SOLVED: To reduce the influence of an external force in detecting gesture.SOLUTION: A conversion unit converts each of axial angular velocity signals of three axes to a frequency domain spectrum. An acquisition unit acquires a frequency indicating the maximum gain, as a primary main resonance frequency, in a frequency domain spectrum of a specific one axis having the maximum gain value in the spectra of the axes, and acquires a ratio between the maximum gain and gains in primary main resonance frequencies in the spectra of at least two axes, as a gain ratio. A determination unit compares a primary main resonance frequency acquired from reference gesture and a gain ratio of the frequency domain spectra of at least two axes, and a primary main resonance frequency acquired from a gesture to be determined and a gain ratio, with each other respectively, to determine whether the gesture to be determined is the reference gesture or not.SELECTED DRAWING: Figure 1 |
