About a non-contact ic card

The card in which the integrated circuit (ic) for doing record and operation of information is incorporated.

Information can be transmitted, without touching a card directly.

Wireless electric supply is used also for this.
 
For exampl,"Suica", "PASMO", etc.

Structure of a non-contact ic card

The coil-type antenna is embedded on ic card.

When there is this, it makes it possible to receive the electric wave which the external terminal is sending by non-contact.

The terminal called a reader writer is built into the external terminal.

A reader writer emits a magnetic field.

When bringing ic card close, the magnetic field of the coil inside a card changes in response to the magnetic field, and current occurs.

That is, the electric power for moving ic is supplied from a reader writer by the electric power and the electric wave which occurred by electromagnetic induction.


●Structure of a card

(コイル式アンテナ=The coil-type antenna,icチップ=ic)
ic is not visible.


●The example of how to use


(磁界=Magnetic field,電磁波=Electromagnetic waves,リーダライタ=reader writer,icカード=ic card)
he electric power for moving ic is supplied from a reader writer by the electric power.



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