Electronic device and method for controlling power signal using the same

A Bluetooth electronic device, the Bluetooth electronic device comprising:

• a Bluetooth module configured to transmit and receive Bluetooth communication data;
• a jack connector configured to include at least one terminal for coupling to an ear jack of an external device and to receive an analog ear jack signal or an audio signal;
• a rectifying circuit configured to convert the analog ear jack signal to a digital signal;
• and
• a processing unit configured to power the Bluetooth module or charge a battery of the Bluetooth electronic device using power supplied by the digital signal.

A method for controlling a power signal in an electronic device using an ear jack having at least one ear jack terminal, the method comprising:

• detecting a coupling with an external device through the ear jack;
• determining whether the electronic device is in a power transmission mode;
• generating an ear jack signal to output to the ear jack terminal when the electronic device is in a power transmission mode;
• outputting the generated ear jack signal to the ear jack terminal by amplifying the ear jack signal;
• and
• outputting an audio signal to the ear jack terminal when the electronic device is not in a power transmission mode.

A method for controlling a power signal in a Bluetooth electronic device using an ear jack connector, the method comprising:

• receiving an analog signal or an audio signal via the ear jack connector from an external device;
• converting the received analog signal to a digital signal with a rectifying circuit;
• and
• driving a Bluetooth module of the Bluetooth electronic device or charging a battery of the Bluetooth electronic device using power supplied by the digital signal.

An Bluetooth electronic device, the Bluetooth electronic device comprising:

• a Bluetooth module configured to transmit and receive Bluetooth communication data with the Bluetooth electronic device;
• a jack connector configured to include at least one connection terminal for receiving an amplified analog signal or an audio signal;
• a rectifying circuit configured to convert the analog signal to a digital signal;
• and
• a processing unit configured to charge a battery of the Bluetooth electronic device using power supplied by the digital signal.