Radio frequency activated charge card

Details Radio frequency activated charge card Radio frequency activated charge card

1993-07-20

1995-05-02

Hajec, Donald

Registers

Systems controlled by data bearing records

Credit or identification card systems

235487, 34082544, G06K 19067, G08B 522

Patent

active

054121922

ABSTRACT:
A system for changing the activation status of a selected data card such as a charge card by broadcasting an appropriate RF signal. An antenna embedded in the card detects and decodes the signal, and operates a transducer which changes the card appearance, alters magnetic stripe information, or alters the information contained within the card.

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