Patent ID: 9052841
Filing Date: 2015-06-09
Classification: G06F,G06K

Abstract:
1. An electronic apparatus comprising: a communication module to transfer data; a controller to transmit data, which is written into each of portable mediums connected to a second electronic device comprising a receiving buffer, to the second electronic device through the communication module; and a data controller to receive information indicating (i) an amount of data erased from the receiving buffer by the second electronic device and (ii) a portable medium corresponding to the erased data of the portable mediums from the second electronic device through the communication module, and to determine data, which is transmitted to the second electronic device, based on the received information, wherein the number of times the data controller receives the information from the second electronic device is less than the number of times of transmitting the data which is transmitted to one of the portable mediums, some pieces of the received information being collectively transmitted.