Abstract: A wearable terminal calculates an acceleration amount in the vertical direction by using an acceleration value. The wearable terminal calculates a change amount in an atmospheric pressure value by using atmospheric pressure values. Further, the wearable terminal multiplies the acceleration amount in the vertical direction by the change amount in the atmospheric pressure value. After that, the wearable terminal detects a change amount in the vertical direction on the basis of the calculated multiplication result. For example, when the multiplication result is a positive value, the wearable terminal sets the change amount in the vertical direction as “0”. When the multiplication result is a negative value, the wearable terminal sets the multiplication result as the change amount in the vertical direction.

Abstract: An electronic device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute: detecting magnetism that changes at a frequency higher than a first threshold; calculating a moving speed of a target device in a horizontal direction; and judging that a user is moving when the calculated moving speed exceeds a second threshold and when an amount of change in the detected magnetism exceeds a third threshold.

Abstract: An acceleration sensor output processing program for causing a computer to execute a process having generating an outer product of a gravity component vector that is extracted from a sensor value of a triaxial acceleration sensor which is detected during walking by a low pass filter and a swing component vector that is extracted from the sensor value by a high pass filter; obtaining a first value corresponding to a magnitude of the outer product; determining an odd-numbered walking period and an even-numbered walking period of the walking; and generating a magnitude of acceleration in one and the other horizontal directions by inverting a sign of the first value in accordance with a result of the determining.