×

Card detection device having a magnetic field monitor, system including the device, and method of operating the device

  • US 9,991,937 B2
  • Filed: 03/17/2015
  • Issued: 06/05/2018
  • Est. Priority Date: 03/18/2014
  • Status: Active Grant
First Claim
Patent Images

1. A detection device, comprising:

  • a reader module comprising;

    a transmitter configured, for detecting an external tag, to supply an induced current to an antenna and adjust a strength of an induced voltage generated in the antenna by adjusting the induced current; and

    a detector configured, for detecting the external tag, to monitor the strength of the induced voltage of the antenna and generate a control signal for controlling the induced current to the antenna based on the monitored strength of the induced voltage of the antenna.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×