发明名称 |
Contact-free data communications system, data communications device, contact-free identification tag, program for controlling the contact-free identification tag, and program for controlling the data communications device |
摘要 |
A contact-free data communication system includes a data communications device located in a predetermined place and a contact-free identification tag. The data communications device includes a first data controller and a data global positioning system that acquires positional information of the data communications device and a transmitter that transmits an electromagnetic wave for providing power and transmits the positional information of the data communications device to the contact-free identification tag in a surrounding area of the data communications device. The contact-free identification tag includes a receiver that receives positional information transmitted by the data communications device, a power generator that generates driving power out of the electromagnetic wave for providing power that is transmitted by the data communications device, a generator that generates positional relationship information based on the positional information that is received by the receiver, a display that displays positional relationship information that is generated by the generator, a data storage medium that is nonvolatile and a data storage that stores data in the storage medium.
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申请公布号 |
US7868751(B2) |
申请公布日期 |
2011.01.11 |
申请号 |
US20040773561 |
申请日期 |
2004.02.06 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
HOSHINA MASAKI |
分类号 |
G01C21/00;G08B1/08;G01S1/68;G01S5/02;G01S5/14;G06K17/00;G06K19/00;G08G1/005;H04B5/02;H04B7/00 |
主分类号 |
G01C21/00 |
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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