Metal contactless transaction card
First Claim
1. A transaction card for communicating data relating to a transaction, the transaction card comprising:
- a metal layer;
a backing layer; and
a radio frequency (RF) antenna layer positioned between the metal layer and the backing layer,wherethe RF antenna layer includes an RF antenna to facilitate communicating the data relating to the transaction wirelessly via an RF signal, andthe metal layer comprises a plurality of holes to limit eddy currents in the metal layer to a threshold density,the plurality of holes extending from a top surface of the metal layer or a bottom surface of the metal layer to a middle plane of the metal layer that is between the top surface and the bottom surface, andthe eddy currents being caused by an RF signal.
1 Assignment
0 Petitions
Accused Products
Abstract
A transaction card for communicating data relating to a transaction may include a metal layer; a backing layer; and/or a radio frequency (RF) antenna layer positioned between the metal layer and the backing layer, where the RF antenna layer includes an RF antenna that may facilitate communicating the data relating to the transaction wirelessly via an RF signal, and the metal layer includes a plurality of holes to limit eddy currents in the metal layer to a threshold density, where the plurality of holes may extend from a top surface of the metal layer to a bottom surface of the metal layer, and the eddy currents may be caused by the RF signal.
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Citations
21 Claims
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1. A transaction card for communicating data relating to a transaction, the transaction card comprising:
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a metal layer; a backing layer; and a radio frequency (RF) antenna layer positioned between the metal layer and the backing layer, where the RF antenna layer includes an RF antenna to facilitate communicating the data relating to the transaction wirelessly via an RF signal, and the metal layer comprises a plurality of holes to limit eddy currents in the metal layer to a threshold density, the plurality of holes extending from a top surface of the metal layer or a bottom surface of the metal layer to a middle plane of the metal layer that is between the top surface and the bottom surface, and the eddy currents being caused by an RF signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A transaction card for communicating data relating to a transaction, the transaction card comprising:
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a first metal layer comprising a first plurality of holes to limit eddy currents in the first metal layer to a first threshold density, the first plurality of holes extending from a top surface of the first metal layer or a bottom surface of the first metal layer to a middle plane of the first metal layer that is between the top surface of the first metal layer and the bottom surface of the first metal later; a second metal layer comprising a second plurality of holes to limit eddy currents in the second metal layer to a second threshold density, the second plurality of holes extending from a top surface of the second metal layer or a bottom surface of the second metal layer to a middle plane of the second metal layer that is between the top surface of the second metal layer and the bottom surface of the second metal later; and a radio frequency (RF) antenna layer positioned between the first metal layer and the second metal layer, where the RF antenna layer includes an RF antenna to facilitate communicating the data relating to the transaction wirelessly via an RF signal, and the eddy currents in the first metal layer or the eddy currents in the second metal layer to be caused by the RF signal. - View Dependent Claims (17, 18, 20)
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19. A transaction card for communicating data relating to a transaction, the transaction card comprising:
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a metal layer; a backing layer; and a radio frequency (RF) antenna layer positioned between the metal layer and the backing layer, where the RF antenna layer includes an RF antenna to facilitate communicating the data relating to the transaction wirelessly via an RF signal, the metal layer comprises a plurality of holes to limit eddy currents in the metal layer to a threshold density, the plurality of holes extending from a top surface of the metal layer or a bottom surface of the metal layer to a middle plane of the metal layer that is between the top surface and the bottom surface,
a first subset of the plurality of holes that overlap the RF antenna are positioned more densely than a second subset of the plurality of holes that do not overlap the RF antenna, and
the eddy currents to be caused by the RF signal. - View Dependent Claims (21)
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Specification