Casio Hitachi Mobile Communications Co., Ltd.

Takeshi Ashida

Satoshi Sato

Atsuo Soma

In a mobile phone deviceincluding a three-axial direction vibration sensorfor detecting the walking of a user carrying the mobile phone deviceand counting the number of walking steps, when an incoming call is received, vibrations due to a notification operation by a vibratoror a speakerare transmitted to the three-axial direction vibration sensor. As a result, the three-axial direction vibration sensorinevitably detects unintended vibrations in addition to vibrations from walking, causing the number of walking steps to be miscounted. To prevent this and perform the accurate detection of walking, in the present invention, the detection of walking is performed without using, among vibrations in three directions detected by the three-axial direction vibration sensor, vibrations in the same direction as the direction of vibrations caused by a notification operation by the vibratoror the speaker

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Kawasaki, Japan

Takeshi Ashida