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Techniques to reduce power consumption in near field communication systems

  • US 10,425,129 B1
  • Filed: 02/27/2019
  • Issued: 09/24/2019
  • Est. Priority Date: 02/27/2019
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • a transceiver to communicate in a first frequency range for cellular communication;

    circuitry coupled with the transceiver, the circuitry to;

    detect a resonant signal in response to a transmission in the first frequency range for cellular communication, the resonant signal to indicate presence of a contactless card; and

    enable a near-field communication device based on the detection of the resonant signal, the near-field communication device to communicate with the contactless card in a second frequency range, wherein the first frequency range is different than the second frequency range.

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