Polsinelli PC
Method of transmitting information from a power efficient card to a mobile device
A method of transmitting information to a mobile device includes providing a read head with a slot for swiping a magnetic stripe of a card, a power supply coupled to wake-up electronics and a microcontroller. The wake-up electronics are powered by a microphone bias of a mobile device.
Square, Inc.
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Amish Michael Shyh-yen James M. Adam David Peter Jack Gerald Thomas Kartik
Babu Ho McKelvey Rothschild Dorsey Ryle Lamba