Cards with serial magnetic emulators
First Claim
1. A card comprising:
- a magnetic emulator operable to serially communicate a data block to a magnetic stripe reader, wherein said magnetic emulator includes a coil having a wire trace width of at least 0.003 inches and said coil includes conductive interconnects in a plurality of vias having a via diameter of at least 0.008 inches and said coil is fabricated directly on a printed circuit board.
1 Assignment
0 Petitions
Accused Products
Abstract
A card is provided, such as a credit card or security card, that may transmit information to a magnetic stripe reader via a magnetic emulator. The emulator may transmit the information serially in order to reduce the amount of circuitry needed to emulate a particular block of information. Additionally, for example, a serial encoder may send any amount of information through a single emulation segment. Such a magnetic emulator may be provided on a credit card. A dynamic credit card number may be provided by, for example, coding a number with a different coding scheme for different periods of time. The magnetic emulator may be utilized to transmit a particular coded number for a particular period of time. In this manner, a dynamic credit card number may be provided such that to help secure, and progress, a payment transaction.
392 Citations
22 Claims
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1. A card comprising:
a magnetic emulator operable to serially communicate a data block to a magnetic stripe reader, wherein said magnetic emulator includes a coil having a wire trace width of at least 0.003 inches and said coil includes conductive interconnects in a plurality of vias having a via diameter of at least 0.008 inches and said coil is fabricated directly on a printed circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16, 21, 22)
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10. A card comprising:
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a first electronic display located on a first surface of said card; a second electronic display located on a second surface of said card; and a magnetic emulator operable to serially communicate a data block to a magnetic stripe reader, wherein a coil of said magnetic emulator is fabricated directly on a printed circuit board. - View Dependent Claims (17, 18, 19, 20)
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Specification