发明名称 |
ANTWORTGEBER IN EINEM CHIPKARTEN-KOMMUNIKATIONSSYSTEM |
摘要 |
An IC card (80) has a communication module (20) embedded in a core member (30). The communication module (20) has a contact terminal (24), an antenna (60) and an IC chip (82) mounted on the same circuit board (22) for making the assembly work easier. The contact terminal (24) is formed at an upper surface of the circuit board (22) to be exposed from an opening (26a) of a surface material (26). The antenna (60) and the IC chip (82) are provided to a lower surface of the circuit board (22) to indirectly face the contact terminal (24). The IC chip (82) automatically adjusts the resonance frequency of the antenna (60) such that an output from the antenna (60) has the maximum value constantly. <IMAGE> |
申请公布号 |
DE69822646(T2) |
申请公布日期 |
2005.02.03 |
申请号 |
DE1998622646T |
申请日期 |
1998.05.15 |
申请人 |
ROHM CO. LTD., KYOTO |
发明人 |
IKEFUJI, YOSHIHIRO;OKADA, HIROHARU |
分类号 |
B42D15/10;G06K7/00;G06K17/00;G06K19/07;G06K19/077 |
主分类号 |
B42D15/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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