Patent ID: 7466995
Filing Date: 2008-12-16
Classification: H04B

Abstract:
1. A mobile communication terminal that prevents malfunctioning when the mobile communication terminal is electrically charged during power-off of the mobile communication terminal, comprising: a keypad; a voltage source which is activated by voltage supplied to an EN (enable) terminal, processes voltage supplied from a battery, and outputs the processed voltage; a power_on switching unit which is switched on when a switch_on key of the keypad is pressed so that the voltage from the battery can be supplied to the EN terminal; a charging terminal which supplies voltage supplied upon charging to the EN terminal; a malfunction-preventing unit which prevents voltage from being supplied from the charging terminal to the EN terminal while a control signal is input; and a controller which is activated by voltage supplied from the voltage source during a power-off condition, controls the mobile communication terminal by supplying voltage to the EN terminal of the voltage source and receiving voltage from the voltage source, and outputs a control signal to the malfunction-preventing unit only when a power-off process is performed according to a power-off instruction from the keypad.