发明名称 |
DUAL IC CARD |
摘要 |
A dual IC card of the present invention includes: an IC module having a contact terminal portion contacting an external machine, a connecting coil configuring a contactless terminal portion by electromagnetic coupling, and an IC chip having a contact communication function and a contactless communication function; an antenna formed along a coil wiring path that defines an inductance and having a coupling coil portion electromagnetically coupling with the connecting coil of the IC module, a main coil portion formed along a coil wiring path that defines an inductance and connected to the coupling coil portion for performing contactless communication with the external machine, and a resistance-increasing portion provided in a section that forms the coil wiring path of at least one of the coupling coil portion and the main coil portion increase electrical resistance in the section; and a plate-like card body in which the antenna is arranged. |
申请公布号 |
US2016104065(A1) |
申请公布日期 |
2016.04.14 |
申请号 |
US201514973399 |
申请日期 |
2015.12.17 |
申请人 |
Toppan Printing Co., Ltd. |
发明人 |
TSUKADA Tetsuya;MIZOGUCHI Shonosuke;HATAKEYAMA Eriko |
分类号 |
G06K19/077 |
主分类号 |
G06K19/077 |
代理机构 |
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代理人 |
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主权项 |
1. A dual IC card comprising:
an IC module including a contact terminal portion contacting an external machine, a connecting coil configuring a contactless terminal portion by electromagnetic coupling, and an IC chip having a contact communication function and a contactless communication function; an antenna including a coupling coil portion formed along a coil wiring path that defines an inductance and electromagnetically coupling with the connecting coil of the IC module, a main coil portion formed along a coil wiring path that defines an inductance and connected to the coupling coil portion to perform contactless communication with the external machine, and a resistance-increasing portion provided in a section that forms the coil wiring path of at least one of the coupling coil portion and the main coil portion to increase electrical resistance in the section; and a plate-like card body in which the antenna is arranged, wherein: in the resistance-increasing portion; a resistance wiring portion is provided in the section, the resistance wiring portion having a line length larger than a length of a direct connection hypothetically provided to short-cut a first point and a second point that define the section, having the same cross-sectional area as that of the direct connection, and being formed of the same material as that of the direct connection; and the resistance wiring portion provided in the section has an electrical resistance higher than that of the direct connection provided in the section. |
地址 |
Tokyo JP |