Method of transmitting information from a power efficient card to a mobile device
作者： Kartik Lamba , Michael Shyh-Yen Ho , Jack Dorsey , Adam David Peter Rothschild , James M. McKelvey
DOI:
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摘要: A method of transmitting information to a mobile device includes providing read head with slot for swiping magnetic stripe card, power supply coupled wake-up electronics and microcontroller. The are powered by microphone bias device.
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