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Passcode entry through motion sensing

  • US 10,255,593 B1
  • Filed: 02/28/2017
  • Issued: 04/09/2019
  • Est. Priority Date: 12/26/2013
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving card data at a card reader mechanically connected to a mobile device, in response to use of a card at the card reader;

    sending, by the card reader, a communication to cause the mobile device to display an input entry interface on a display component of the mobile device for enabling a user to enter, through multiple tactile presses applied to a surface of the mobile device, an input that is used to authenticate a transaction;

    recording a sequence of accelerometer readings from an accelerometer in the card reader, wherein the accelerometer readings correspond to movements of the card reader and the mobile device when the multiple tactile presses are applied to the surface of the mobile device;

    based at least in part on the accelerometer readings, determining, by the card reader, locations on the surface of the mobile device corresponding to the multiple tactile presses applied to the surface of the mobile device;

    determining, based at least in part on the determined locations corresponding to the multiple tactile presses, an input entry comprised of symbols; and

    authenticating the transaction based at least in part on the determined input entry.

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