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Mobile terminal

  • US 9,654,857 B2
  • Filed: 09/29/2014
  • Issued: 05/16/2017
  • Est. Priority Date: 04/23/2014
  • Status: Active Grant
First Claim
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1. A mobile terminal, comprising:

  • a power supply unit including a rechargeable main battery;

    an earphone port; and

    a controller determining whether an earphone with a cable-type battery is connected through the earphone port and external power for charging the rechargeable main battery or the cable-type battery is supplied, controlling the power supply unit to charge the rechargeable main battery by using the external power if it is determined that the external power is being supplied, and controlling the power supply unit to charge the rechargeable main battery by using the cable-type battery embedded in the earphone if it is determined that the earphone is connected through the earphone port while the external power is not supplied,wherein, if it is determined that the external power is being supplied at the time the earphone is connected, the controller controls the power supply unit to charge the cable-type battery by using the external power.

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