Patent ID: 7881900

Claim:
An acceleration measuring device, comprising: acceleration detecting means for detecting accelerations in two-axis or three-axis directions; acceleration data obtaining means for obtaining two-axis or three-axis acceleration data detected by the acceleration detecting means; importance calculating means for calculating importance of the acceleration data obtained by the acceleration data obtaining means; reference point estimating means for estimating a reference point defined on a two dimensional or three dimensional orthogonal coordinate space and scale reference of the respective axes based on both a distribution of respective axial components of the acceleration data in a group of two-axis or three-axis acceleration data obtained by the acceleration data obtaining means on the two dimensional orthogonal coordinate space or the three dimensional orthogonal space and a group of importance including importance of different values calculated by the importance calculating means corresponding to the group of two-axis or three-axis acceleration data; and offset correcting means for correcting the respective acceleration data obtained by the acceleration data obtaining means, based on the reference point and the scale reference of the respective axes estimated by the estimating means.