Pedometer
First Claim
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1. A pedometer comprising:
- walk detecting means having a sensor that detects a walk and outputs a corresponding charge walk signal and charge-voltage converting means that converts a walk signal of from the sensor into a corresponding voltage walk signal to output, to thereby detecting a walk and outputting a corresponding walk signal;
calculating means that calculates a step count based on the walk signal of from the walk detecting means; and
control means that controls a detection sensitivity of the walk detecting means by controlling a gain of the charge-voltage converting means.
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Abstract
An acceleration sensor outputs a walk signal having a charge corresponding to a walk. The walk signal is converted by charge-voltage conversion means into a voltage walk signal, removed of noise by filter means, amplified by amplification means and converted by binarization means into a digital signal, followed by being inputted to a CPU. The CPU performs open-close control of switches, such that the walking pitch, calculated based on the walk signal, comes within a predetermined walking pitch range stored in the storage means thereby controlling the conversion gain of the charge-voltage conversion means and controlling the walk detection sensitivity properly.
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Citations
20 Claims
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1. A pedometer comprising:
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walk detecting means having a sensor that detects a walk and outputs a corresponding charge walk signal and charge-voltage converting means that converts a walk signal of from the sensor into a corresponding voltage walk signal to output, to thereby detecting a walk and outputting a corresponding walk signal; calculating means that calculates a step count based on the walk signal of from the walk detecting means; and control means that controls a detection sensitivity of the walk detecting means by controlling a gain of the charge-voltage converting means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification