スマートカード#0027

SMART CARD SYSTEM - field of the invention #0027

  • Posted on: 13 February 2017
  • By: tsu-ka
English

FIELD OF THE INVENTION

The present invention is directed to microprocessor-based user cards, commonly known as "smart cards", and more particularly to a smart card that is capable of communicating with a variety of external devices using different protocols that are respectively associated with the various devices.

United States Patent 6,199,128 Inventors: Sarat; Jean-Marc (Belmont, CA)