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US 8,579,203 B1Granted
Electronic magnetic recorded media emulators in magnetic card devices
AssigneeDynamics Inc.
InventorsDavid N. Lambeth, Bruce S. Cloutier
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Abstract
A card (e.g., a payment card) or device (e.g., a token or phone) is provided with a magnetic emulator having a soft magnetic material whose reluctance is controlled.
Claims19
A card comprising:
- a bias magnetic field generation device;
- a first conductive coil;
- and a uniaxially anisotropic soft magnetic material within said first conductive coil,
- wherein dimensions of said soft magnetic material include a length, a width, and a thickness,
- said length is greater than said width, and said width is greater than said thickness,
- an easy axis of said soft magnetic material is in a widthwise direction of said soft magnetic material, said easy axis being perpendicular to a lengthwise direction of said soft magnetic material, and
- a bias magnetic field of said bias magnetic field generation device is in said widthwise direction.
4 more elements
A card, comprising:
- a dynamic magnetic stripe communications device including a bias magnetic field generation device, the dynamic magnetic stripe communications device operable to communicate data to a magnetic stripe card reader, a reluctance of the dynamic magnetic stripe communications device greater than a reluctance of the magnetic stripe card reader,
- wherein the dynamic magnetic stripe communications device further comprises a coil that encompasses a uniaxially anisotropic magnetic material, the coil having a length and a width,
- the uniaxial anisotropy is across the coil width, and a bias magnetic field produced by the field generation device is provided across the coil width.
Dependencies are inferred from the claim text.