Electronic apparatus which can discriminate between different power sources which it uses

An electronic apparatus which has a plurality of operating modes and which is capable of receiving a supply of electrical power from a plurality of power source devices having different characteristics from each other, comprising:

• A) operating mode setting means for setting each of said plurality of operating modes, said plurality of operating modes being other than conversion of the electrical power provided by said power source devices;
• B) detecting means for detecting a characteristic of a power source device accommodated in said electronic apparatus;
• and
• C) control means for controlling an operation of said operating mode setting means in accordance with the characteristic detected by said detecting means.

An electronic apparatus comprising:

• A) operating mode setting means for selectively setting a plurality of operating modes;
• B) mode cancelling means for cancelling an operating mode set by the operating mode setting means among said plurality of operating modes when a predetermined set period of time has elapsed;
• and
• C) detecting means for detecting a characteristic of a power source device which supplies electrical power to said electronic apparatus;
• and
• D) control means for controlling a timing at which said mode cancelling means is activated, by changing said set period of time in accordance with the characteristic detected by said detecting means.

An electronic apparatus which has a plurality of operating modes and which is capable of individual using one of at least two power source units having electrode means with respective different characteristics, comprising:

• A) operating mode setting means for setting each of said plurality of operating modes, said plurality of operating modes being other than conversion of the electrical power provided by said power source devices;
• B) a power source unit compartment capable of accommodating each of said power source units individually;
• and
• C) detecting means disposed in said power source unit compartment and adapted for detecting respective patterns of configuration of connecting electrode means of each said power source unit when accommodated in said power source unit compartment, said operating mode setting means being responsive to the detection by said detecting means in setting an operating mode of said apparatus.