发明名称 |
Data carrier and data carrier system |
摘要 |
Both RF communication and contact serial communication can be performed with the use of: communication protocol storage unit for storing a communication protocol for performing communication with an external communication apparatus; a coil terminal section provided with two coil terminals for performing communication with the external communication apparatus with an RF signal; a contact communication terminal section provided with a first communication terminal, a second communication terminal, a power supply voltage terminal and a ground terminal as contact communication terminals for performing contact communication with the external communication apparatus; and connection control unit for causing the power supply voltage terminal and a power supply of an internal switch circuit to be in contact or non-contact with each other depending on the level of voltage applied to the first and second communication terminals.
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申请公布号 |
US7834753(B2) |
申请公布日期 |
2010.11.16 |
申请号 |
US20070976879 |
申请日期 |
2007.10.29 |
申请人 |
YOSHIKAWA RF SYSTEMS CO., LTD. |
发明人 |
SUGAWARA YOSHIKAZU;YASUDA NAOTAKA;KUBO TAKASHI;SAWADA KIKUZO;TANG YUMING |
分类号 |
G08B26/00;G05B19/00 |
主分类号 |
G08B26/00 |
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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