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Interactive systems and methods with tracking devices

  • US 10,360,419 B1
  • Filed: 01/29/2018
  • Issued: 07/23/2019
  • Est. Priority Date: 01/15/2018
  • Status: Active Grant
First Claim
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1. A wearable device comprising:

  • a radio-frequency identification (RFID) tag comprising a memory that stores identification information;

    a power harvesting circuit configured to harness power from electromagnetic radiation;

    a sensor coupled to the power harvesting circuit and configured to utilize the power to monitor a condition of the wearable device only while the RFID tag is in communication with an RFID reader; and

    a microcontroller coupled to the sensor and configured to write data indicative of the condition to the memory of the RFID tag, wherein the RFID tag is configured to transmit the identification information and the data in response to receipt of the electromagnetic radiation from the RFID reader.

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