Cards and devices with multifunction magnetic emulators and methods for using same
DCFirst Claim
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1. A device comprising:
- a circuit operable to emit an electromagnetic field and to electrically couple to, and transmit data to, a read-head located on a magnetic stripe reader; and
a processor for controlling the circuit,wherein the circuit is operable to communicate the data to the read-head while located outside of the magnetic stripe reader at a distance of at least a quarter of an inch from the read-head.
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Abstract
A payment card (e.g., credit and/or debit card) is provided with a magnetic emulator operable of communicating information to a magnetic stripe reader. Information used in validating a financial transaction is encrypted based on time such that a validating server requires receipt of the appropriate encrypted information for a period of time to validate a transaction for that period of time. Such dynamic information may be communicated using such an emulator such that a card may be swiped through a magnetic stripe reader—yet communicate different information based on time. An emulator may receive information as well as communicate information to a variety of receivers (e.g., an RFID receiver).
382 Citations
20 Claims
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1. A device comprising:
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a circuit operable to emit an electromagnetic field and to electrically couple to, and transmit data to, a read-head located on a magnetic stripe reader; and a processor for controlling the circuit, wherein the circuit is operable to communicate the data to the read-head while located outside of the magnetic stripe reader at a distance of at least a quarter of an inch from the read-head. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A portable telephonic device comprising:
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a circuit operable to emit an electromagnetic field and to electrically couple to, and transmit data to, a read-head located on a magnetic stripe reader; and a processor for controlling the circuit, wherein the circuit is operable to communicate the data to the read-head while located outside of the magnetic stripe reader. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification