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Portable electronic data carrier

  • US 5,994,770 A
  • Filed: 04/24/1997
  • Issued: 11/30/1999
  • Est. Priority Date: 07/09/1991
  • Status: Expired due to Fees
First Claim
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1. An apparatus comprising:

  • a circuit disposed in a housing, said housing having a cavity and formed from two substantially concave, electrically conductive surfaces with an insulating member disposed therebetween, said circuit comprisingan input/output module, said input/output module further comprising a parasitic power sub-module;

    a scratchpad memory, coupled to said input/output module;

    a programmable memory, coupled to said scratchpad memory; and

    a control module, said control module coupled to said input/output module, said scratchpad memory and said programmable memory.

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