Abstract: An electronic device that includes a first mobile device, and a second mobile device directly connected with the first mobile device through a power line, the second mobile device being configured to perform power line communication with the first mobile device through the power line for a first time period, and perform wireless communication with an external device for a second time period, the second time period not overlapping the first time period.

Abstract: An electronic device that includes a first mobile device, and a second mobile device directly connected with the first mobile device through a power line, the second mobile device being configured to perform power line communication with the first mobile device through the power line for a first time period, and perform wireless communication with an external device for a second time period, the second time period not overlapping the first time period.

Abstract: A first mobile device including; first charging terminals, a power line communication modem configured to supply power to a second mobile device connected with the first charging terminals and to perform data communication with the second mobile device, wherein the data communication includes a plurality of data packets, and a microcontroller unit configured to generate primary data including a first data packet among the plurality of data packets, wherein the first data packet includes a first header and a first data message, wherein the first header includes a first code indicating a purpose for the first data packet, and the first data message includes upper bits indicating a destination for data and lower bits indicating a number of data packets included in a first group in the data.

Abstract: An electronic device that includes a first mobile device, and a second mobile device directly connected with the first mobile device through a power line, the second mobile device being configured to perform power line communication with the first mobile device through the power line for a first time period, and perform wireless communication with an external device for a second time period, the second time period not overlapping the first time period.

Abstract: A portable device and an operating method of the same are provided. The portable device includes a power line communication module performing power line communication with an external device, a memory module storing firmware data, and a controller controlling the power line communication module and the memory module, wherein the power line communication module sequentially provides an update initiation signal and firmware data to the external device, and provides an update end signal to the external device in response to a response signal transmitted by the external device.