Patent ID: 8239596
Filing Date: 2012-08-07
Classification: G06K

Abstract:
1. An integrated circuit (IC) card, comprising: a memory; a plurality of contacts comprising a pair of radio frequency (RF) contacts and a pair of communication contacts; a microprocessor configured to i) select one of a low speed communication protocol and a high speed communication protocol, ii) have a command input through (a) one of the pair of communication contacts and (b) the RF contacts if the low speed communication protocol is selected, iii) have a command input through (a) the pair of communication contacts and (b) the RF contacts if the high speed communication protocol is selected, and iv) process data written in the memory by the input command and output a corresponding response; a high speed interface configured to communicate the command and the response via the pair of communication contacts based on the high speed communication protocol; a low speed interface configured to communicate the command and the response via one of the pair of communication contacts based on the low speed communication protocol; and a contact allotting unit configured to electrically connect the communication contact determined by the selected communication protocol to one of the low speed interface and the high speed interface, wherein the plurality of contacts are arranged so as to be compatible with ISO 7816, and wherein the RF contacts correspond to C4 and C8 contacts of ISO 7816, and wherein one of the pair of communication contacts correspond to the C7 contact of ISO 7816 in the low speed communication protocol, and wherein the pair of communication contacts correspond the C6 and C7 contacts of ISO 7816 in the high speed communication protocol.