G - Physics
07
F
336/49, 352/57
G07F 7/10 (2006.01) G06K 7/00 (2006.01) G06K 19/06 (2006.01) G06K 19/077 (2006.01)
Patent
CA 1237815
- 11 - FLEXIBLE INDUCTOR Abstract of the Disclosure Contactless inductive power transfer from a stationary "reader" to energize the electronics on a portable data or "smart" card is made practical through a flexible inductor carried on the card. The inductor, which acts as the secondary portion of a power transformer, comprises a flat coil and a flexible magnetic but nonmagnetostrictive core piece. The core piece may be a thin wafer of amorphous magnetic alloy. Clock pulses to synchronize data transfer on the card with the reader can also be generated from the signal picked up by the inductor.
493738
American Telephone And Telegraph Company
Kirby Eades Gale Baker
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