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PORTABLE CHARGING APPARATUS, CHARGING METHOD THEREOF, AND CHARGING SYSTEM

  • US 20110316472A1
  • Filed: 06/27/2011
  • Published: 12/29/2011
  • Est. Priority Date: 06/29/2010
  • Status: Active Grant
First Claim
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1. A charging system, the system comprising:

  • an external charging device with a Universal Serial Bus (USB) interface, for supplying electric power to charge a battery;

    a portable charging apparatus comprising a first interface connected to the external charging device, a second interface connected to a mobile communication terminal, and a switch for connecting or for disconnecting the data lines according to whether the portable charging apparatus is connected to the external charging device, wherein the switch is disposed between data lines for USB communication; and

    a mobile communication terminal, connected to the second interface, for charging the battery via at least one of the external charging device and the portable charging apparatus.

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