CONTACTLESS TYPE DATA CARRIER DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a contactless type data carrier device which provides sufficient sensitivity even when mounted with a plurality of IC chips.

SOLUTION: The contactless type data carrier device is equipped with: a board having a rectangular shape; a first IC chip 20 which is disposed in an inner layer of the board and has a built-in antenna for transmitting and receiving information by electromagnetic wave of an HF band; a second IC chip 21 which is disposed in the inner layer of the board and has a built-in antenna for transmitting and receiving information by electromagnetic wave of a frequency or a communication protocol different from that of the first IC chip; and a planar conductor which is formed on the board and functions as an antenna which cooperates with the antenna of the first IC chip and cooperates with the antenna of the second IC chip.

COPYRIGHT: (C)2008,JPO&INPIT