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NFC device and connection system of NFC devices

  • US 10,020,847 B2
  • Filed: 11/23/2015
  • Issued: 07/10/2018
  • Est. Priority Date: 11/15/2011
  • Status: Active Grant
First Claim
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1. A near field communication device comprising:

  • a host central processing unit or microcontroller unit;

    a memory;

    a general packet radio service modem controlled by the central processing unit or microcontroller unit to access the Internet;

    a subscriber identification module holder;

    an antenna;

    a battery, the near field communication device being shaped as a credit card and further comprising a touch-screen adapted to operate;

    contactless services;

    visualize a ticket/coupon; and

    consult the latest transaction or equivalent;

    a secure element adapted to store and execute a contactless application;

    a near field communication front-end controller connected to the central processing unit or microcontroller unit and to the secure element,the near field communication device using a dedicated smartcard chip as an external secure module,the external secure module being connected to the secure element as an internal secure element, to realize two-level security;

    in response to identifying the internal secure element, the external secure module operably activating the internal secure element via the dedicated smartcard chip;

    in response to authenticating the internal secure element, operably deactivating the internal secure element via the dedicated smartcard chip, wherein deactivating the internal secure element includes disconnecting from the internal secure element; and

    with the dedicated smartcard chip, operably verifying an active/inactive status of the secure element without access to inherent content and data in the secure element.

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