RESPONSE DEVICE IN AC CARD COMMUNICATION SYSTEM

Title:

RESPONSE DEVICE IN AC CARD COMMUNICATION SYSTEM

Document Type and Number:

WIPO Patent Application WO/1998/053423

Kind Code:

A1

Abstract:

An IC card (80) has a communication module buried in a core member (30). In order to facilitate the assembly work of the module (20), contact terminals (24), an antenna (60) and an IC chip (82) are mounted on one board (22). The contact terminals (24) are formed on the upper surface of the board (22) as to be exposed from an opening (26a) of a surface layer (26). In order to make the assembly compact, the antenna (60) and the IC chip (82) are so provided on the lower surface of the board (22) opposite to the contact terminals (24). The IC chip (82) adjusts the resonance frequency of the antenna (60) automatically so as to maximize the output from the antenna (60).

Inventors:

IKEFUJI YOSHIHIRO (JP)
OKADA HIROHARU (JP)

Application Number:

PCT/JP1998/002154

Publication Date:

November 26, 1998

Filing Date:

May 15, 1998

Export Citation:

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Assignee:

ROHM CO LTD (JP)
IKEFUJI YOSHIHIRO (JP)
OKADA HIROHARU (JP)

International Classes:

G06K7/00; G06K17/00; B42D15/10; G06K19/07; G06K19/077; (IPC1-7): G06K19/077; G06K19/073

Foreign References:

JPH07239922A	1995-09-12
JPH10124626A	1998-05-15
JPH0852968A	1996-02-27
JPH0830749A	1996-02-02
JPH0962816A	1997-03-07

Other References: