Contact-free data communications system, data communications...

Communications: electrical – Condition responsive indicating system – With particular coupling link

Reexamination Certificate

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Details

C340S572100, C340S572200, C340S572300, C340S572400, C340S572600

Reexamination Certificate

active

07868751

ABSTRACT:
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.

REFERENCES:
patent: 6710776 (2004-03-01), Usaki
patent: 2003/0024975 (2003-02-01), Rajasekharan
patent: 2005/0122221 (2005-06-01), Chuang et al.
patent: 63035027 (1988-02-01), None
patent: 03058524 (1991-03-01), None
patent: 08235397 (1996-09-01), None
patent: 10-068634 (1998-03-01), None
patent: 2001-116583 (2001-04-01), None
patent: 2001188608 (2001-07-01), None
patent: 2002-117489 (2002-04-01), None
Japanese language office action for corresponding Japanese patent application No. 2003-032541 lists the references above.
Japanese language office action for corresponding Japanese patent application No. 2003-032541 lists the references above, Apr. 10, 2007.

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