Shielded magnetic stripe for magnetic cards and devices
First Claim
Patent Images
1. A card comprising:
- a magnetic stripe emulator;
a shield, wherein a magnitude of an electromagnetic signal generated by said magnetic stripe emulator is reduced by said shield on a first side of said card as compared to a magnitude of said electromagnetic signal on a second side of said card; and
a magnetic material arranged proximate to said magnetic stripe emulator, wherein said magnetic material is arranged between said magnetic stripe emulator and said shield.
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Accused Products
Abstract
A card may include a magnetic stripe emulator having a coil with magnetic or non-magnetic material located inside and/or outside of the coil. A shield may be located adjacent to the magnetic emulator that may include a magnetic or a non-magnetic material. The shield may attract magnetic flux lines generated by the magnetic stripe emulator to reduce a magnitude of an electromagnetic field generated on one side of the card as compared to a magnitude of an electromagnetic field generated on another side of the card. A shield may be laminated between layers of a card or may be fixed on a surface of a card.
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Citations
31 Claims
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1. A card comprising:
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a magnetic stripe emulator; a shield, wherein a magnitude of an electromagnetic signal generated by said magnetic stripe emulator is reduced by said shield on a first side of said card as compared to a magnitude of said electromagnetic signal on a second side of said card; and a magnetic material arranged proximate to said magnetic stripe emulator, wherein said magnetic material is arranged between said magnetic stripe emulator and said shield. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A card comprising:
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a magnetic stripe emulator; a shield, wherein a magnitude of an electromagnetic signal generated by said magnetic stripe emulator is reduced by said shield on a first side of said card as compared to a magnitude of said electromagnetic signal on a second side of said card; and a magnetic material arranged proximate to said magnetic stripe emulator, wherein said magnetic material is a hard-magnetic material. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. A card comprising:
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a magnetic stripe emulator; a shield, wherein a magnitude of an electromagnetic signal generated by said magnetic stripe emulator is reduced by said shield on a first side of said card as compared to a magnitude of said electromagnetic signal on a second side of said card; and a magnetic material arranged proximate to said magnetic stripe emulator, wherein said magnetic material includes a lamination of at least two layers of hard-magnetic material. - View Dependent Claims (20)
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21. A card comprising:
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a magnetic stripe emulator; a shield, wherein a magnitude of an electromagnetic signal generated by said magnetic stripe emulator is reduced by said shield on a first side of said card as compared to a magnitude of said electromagnetic signal on a second side of said card; and a magnetic material arranged proximate to said magnetic stripe emulator, wherein said magnetic material includes a lamination of two layers of hard-magnetic material. - View Dependent Claims (22)
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23. A card comprising:
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a magnetic stripe emulator; a shield, wherein a magnitude of an electromagnetic signal generated by said magnetic stripe emulator is reduced by said shield on a first side of said card as compared to a magnitude of said electromagnetic signal on a second side of said card; and a magnetic material arranged proximate to said magnetic stripe emulator, wherein said magnetic material is arranged between said magnetic stripe emulator and said shield and wherein said magnetic material is a hard-magnetic material.
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24. A card comprising:
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a magnetic stripe emulator; a shield, wherein a magnitude of an electromagnetic signal generated by said magnetic stripe emulator is reduced by said shield on a first side of said card as compared to a magnitude of said electromagnetic signal on a second side of said card; a second magnetic stripe emulator; and a magnetic material arranged proximate to said magnetic stripe emulator and said second magnetic stripe emulator, wherein said magnetic material is a hard-magnetic material. - View Dependent Claims (25, 26, 27)
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28. A card comprising:
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a magnetic stripe emulator; a shield, wherein a magnitude of an electromagnetic signal generated by said magnetic stripe emulator is reduced by said shield on a first side of said card as compared to a magnitude of said electromagnetic signal on a second side of said card; a second magnetic stripe emulator; and a magnetic material arranged proximate to said magnetic stripe emulator and said second magnetic stripe emulator, wherein said magnetic material includes a lamination of at least two layers of hard-magnetic material.
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29. A card comprising:
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a magnetic stripe emulator; a shield, wherein a magnitude of an electromagnetic signal generated by said magnetic stripe emulator is reduced by said shield on a first side of said card as compared to a magnitude of said electromagnetic signal on a second side of said card; a magnetic material arranged proximate to said magnetic stripe emulator; and a sheath wrapped around said shield, said sheath being attached to said magnetic material.
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30. A card comprising:
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a magnetic stripe emulator; a shield, wherein a magnitude of an electromagnetic signal generated by said magnetic stripe emulator is reduced by said shield on a first side of said card as compared to a magnitude of said electromagnetic signal on a second side of said card; a magnetic material arranged proximate to said magnetic stripe emulator; and a sheath wrapped around said shield, wherein said shield includes a laminate of two layers.
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31. A card comprising:
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a magnetic stripe emulator; a shield, wherein a magnitude of an electromagnetic signal generated by said magnetic stripe emulator is reduced by said shield on a first side of said card as compared to a magnitude of said electromagnetic signal on a second side of said card; a magnetic material arranged proximate to said magnetic stripe emulator; and a sheath wrapped around said shield, wherein said shield includes a laminate of two layers, and wherein said laminated layers are not attached to said sheath.
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Specification