Patent ID: 6686671
Filing Date: 2004-02-03
Classification: H03M

Abstract:
A power supply control apparatus for a portable electronic equipment comprising:a power supply control key; a key switch formed by arranging a plurality of key contacts at cross points of a key matrix, and equipped with one of said plural key contacts as a power supply control key contact of said power supply control key; a key scan circuit for detecting open/close states of said plural key contacts of said key switch including said power supply control key contact; power supply control key state detecting means for detecting an open/close state of said power supply control key contact independent from the open/close state detection by said key scan circuit; and a power supply for commencing a supply of electric power in such a case that the close state of said power supply control key contact is detected by said power supply control key state detecting means; and processing means for stopping the supply of the electric power from said power supply in the case that the close state of said power supply control key contact is detected by said key scan circuit.