SMART CARD SYSTEM - claim8 #0042
English
8. The transaction system of claim 6, wherein some of said plurality of contacts, including said first data input/output contact, comprise a predefined set of contacts associated with an operating protocol, and said second data input/output contact is not included within said predefined set of contacts.
United States Patent 6,199,128 Inventors: Sarat; Jean-Marc (Belmont, CA)