ACTIVE CONTROL SECURE TRANSACTION CARD

摘要

A secure transaction card does not interact with an interrogating radio frequency field without user interaction. The user interaction may include pressing on the card to cause a smartcard chip to connect to a coil on the card. The user interaction may also include exposing the card to light, motion, touch, or the like. Control of the secure transaction card may be active or passive.

主权项

1. A transaction card comprising:
a smartcard chip; an electrically conductive coil; a sensor to sense an environmental attribute; and a controller to conditionally couple the smartcard chip to the electrically conductive coil in response to the environmental attribute.