×

Amplifying radio frequency signals

  • US 8,925,827 B2
  • Filed: 10/16/2009
  • Issued: 01/06/2015
  • Est. Priority Date: 09/12/2007
  • Status: Expired due to Fees
First Claim
Patent Images

1. A microSD card, comprising:

  • a first interface that connects to a microSD slot of a mobile host device;

    a second interface that includes an internal antenna for wirelessly communicating with retail terminals using near field communication (NFC) signals, wherein the internal antenna comprises a three-dimensional structure with multiple substantially-parallel layers, and each layer includes a metal trace in a circuit board with adjacent metal traces connected through metal vias;

    secure memory that stores user credentials and a payment application used to execute financial transactions with the retail terminals, the user credentials and the payment application associated with a financial institution;

    a user-interface module that presents and receives information through a Graphical User Interface (GUI) of the mobile host device;

    a transaction processing module that executes the payment application using the user credentials in response to at least a transaction request received by the second interface and transmits at least one transaction response to the retail terminal based, at least in part, on the executed payment application; and

    an amplification module configured to actively amplify at least received NFC signals using power from the mobile host device through the first interface that connects to the MicroSD slot of the mobile host device.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×