Patent ID: 7376533

Claim:
An electronic pedometer comprising: a case; a band connected to the case to enable the case to be worn on the wrist of a user; an acceleration sensor mounted in the case and that generates an acceleration signal in response to acceleration of the wrist-worn case; a slant sensor mounted in the case and that discriminates a horizontality degree of the wrist-worn case and outputs a slant signal when the degree of horizonality is equal to or greater than a preset angle and outputs a horizontality signal when the degree of horizontality is less than the preset angle and a signal processing part mounted in the case and that step-number-counts the acceleration signal as a walk signal when the slant signal is outputted from the slant sensor, that temporarily stops, when the slant sensor has outputted a horizontality signal, a step number count of the acceleration signal of the acceleration sensor to thereby perform a horizontality time count processing of the acceleration signal, that finishes, when thereafter the slant sensor has outputted the slant signal, the horizontality time count processing to thereby shift it to a step number count and evaluates a horizontality time count value having been obtained in the horizontality time count processing and that, in a case where there has been judged to be an accumulated value of the acceleration signal by a true walk, adds the horizontality time count value to the step number count.