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SD memory card for extension of function

  • US 20050224589A1
  • Filed: 04/05/2005
  • Published: 10/13/2005
  • Est. Priority Date: 11/04/2004
  • Status: Abandoned Application
First Claim
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1. A secure digital memory card for extension of function, comprising:

  • a flash memory installed in a host device and storing data generated by the host device;

    a controller controlling an access interface to the flash memory;

    a radio frequency circuit performing functions of a contactless integrated circuit card and a contactless integrated circuit card reader through a wireless interface control of the controller;

    an antenna unit connected to the radio frequency circuit to perform a function of a transmission and reception antenna; and

    a contact integrated circuit card adapter performing the function of the contact integrated circuit card reader through a wire interface control of the controller.

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