| 摘要 |
A DEVICE, SYSTEM, AND METHOD FOR PERFORMING A TRANSACTION USING A TRANSLUCENT, TRANSPARENT OR SEMITRANSPARENT TRANSACTION CARD (10) WITH A TRANSACTION CARD SENSING DEVICE (16) INCLUDES A TRANSACTION CARD (10) OF A MATERIAL CAPABLE OF PASSING VISIBLE LIGHT, SUCH AS CLEAR PVC, AND AN INFRARED FILTER WHICH IS CAPABLE OF PASSING VISIBLE LIGHT WHILE PREVENTING PASSAGE OF INFRARED LIGHT IN A PREDETERMINED RANGE OF WAVELENGTHS EMITTED BY AN INFRARED LIGHT SOURCE (18) OF THE TRANSACTION CARD SENSING DEVICE (16). WHEN THE TRANSACTION CARD (10) IS DIPPED IN THE CARD SENSING DEVICE (16), THE INFRARED LIGHT FILTER INTERRUPTS THE PASSAGE OF INFRARED LIGHT FROM THE INFRARED LIGHT EMITTING SOURCE (18) TO AN INFRARED LIGHT SENSOR (20) OF THE TRANSACTION CARD SENSING DEVICE (16), AND THE INFRARED LIGHT SENSOR (20) GENERATES A SIGNAL INDICATIVE OF THE PRESENCE OF THE TRANSACTION CARD (L0) IN THE CARD SENSING DEVICE (16) IN RESPONSE TO THE INTERRUPTION.(FIG 1)
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