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Mobile device with a contactless smartcard device and active load modulation

  • US 9,390,359 B2
  • Filed: 11/14/2014
  • Issued: 07/12/2016
  • Est. Priority Date: 08/08/2008
  • Status: Active Grant
First Claim
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1. A mobile device comprising:

  • a contactless smartcard integrated circuit having a contactless interface intended for connection to a coil to interact with a radio frequency (RF) field at 13.56 MHz, and having a pad separate from the contactless interface to output digital data;

    an antenna; and

    an active transmit driver coupled between the pad to output digital data and the antenna to transmit the digital data.

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