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Smartphone proximity card emulation

  • US 10,122,841 B2
  • Filed: 08/10/2016
  • Issued: 11/06/2018
  • Est. Priority Date: 04/05/2013
  • Status: Active Grant
First Claim
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1. A portable computing device, comprising:

  • an antenna;

    storage that stores an identification number; and

    a processor configured to control modulation of the identification number onto an unmodulated carrier signal received by the antenna from a proximity card reader device to enable the portable computing device to emulate a proximity card;

    wherein the portable computing device is configured to emulate a proximity card by responding to the proximity card reader device in a first mode using the antenna, and to receive a wireless charging signal from a wireless charger using the antenna to charge a rechargeable battery in a second mode, the processor enabling the identification number to be modulated onto the unmodulated carrier signal for a predetermined time duration, and causing the portable computing device to enter the second mode after expiration of the predetermined time duration to wirelessly charge the rechargeable battery.

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