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ACTIVE CIRCUIT FOR RFID

  • US 20130233931A1
  • Filed: 04/26/2013
  • Published: 09/12/2013
  • Est. Priority Date: 08/08/2008
  • Status: Active Grant
First Claim
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1. A memory card comprising:

  • a smartcard controller coupled to receive power from a host device;

    an amplifier to receive a signal from a receive antenna when the receive antenna is inductively coupled to another device, the amplifier providing a simplex communication path from the receive antenna to a contactless interface on the smartcard controller; and

    a transmit circuit to receive outgoing data from the contactless interface and to drive a transmit antenna.

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