ELECTRONIC DEVICE WITH KEYS AND VOLTAGE DETECTING METHOD THEREOF

摘要

An electronic device with a plurality of keys which correspond to a plurality of standard voltages respectively comprises a voltage generation module, a detection module, storage, an acquiring module, a comparison module, and an extraction module. The voltage generation module with an initial voltage decreases the initial voltage to the standard voltage corresponding to the pressed key. The detection module detects whether the current voltage of the voltage generation module is equal to the initial voltage. The storage stores the current voltage as a reference voltage when the current voltage is not equal to the initial voltage. The acquiring module acquires a current voltage of the voltage generation module after a predetermined time. The comparison module compares the acquired current voltage with the reference voltage. When the acquired current voltage is equal to the reference voltage, the extraction module executes an operation corresponding to the reference voltage.

主权项

1. An electronic device with a plurality of keys which, when pressed, correspond to a plurality of standard voltages in a one-to-one relationship, the electronic device comprising:
a voltage generation module with an initial voltage, and for decreasing the initial voltage to the standard voltage corresponding to the pressed key; a detection module for detecting whether the current voltage is equal to the initial voltage; a storage connected to the detection module, and for storing the current voltage as a reference voltage when the current voltage is not equal to the initial voltage; an acquiring module for acquiring a current voltage of the voltage generation module after a predetermined time; a comparison module connected to the acquiring module, and for comparing the acquired current voltage with the reference voltage to ensure the standard voltage corresponding to the pressed key; and an extraction module connected to the comparison module; wherein when the acquired current voltage is equal to the reference voltage, the reference voltage is the standard voltage corresponding to the pressed key, and the extraction module executes an operation corresponding to the reference voltage.