Patent ID: 9542632
Date: 2017-01-10
CPC Classifications: G06K

Claim:
1. An IC card which performs contactless communication with an external device, the IC card, comprising: a receiver operable to receive a first command transmitted from the external device in a passive mode; a determining processor operable to determine whether or not the first command is a switching request command to request switching a mode of the IC card from the passive mode to an active mode; a switching processor operable to switch the mode of the IC card from the passive mode to the active mode when the determining processor determines that the first command is the switching request command; an identification information acquiring processor operable to acquire identification information of another IC card existing in the communicable range of the external device from the switching request command in the passive mode; a command generating processor operable to generate a second command including the identification information acquired by the identification information acquiring processor so as to make the other IC card execute processing in the active mode; and a command transmitter operable to transmit the second command to the other IC card in the active mode.