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Media cipher smart card

  • US 6,758,404 B2
  • Filed: 08/03/2001
  • Issued: 07/06/2004
  • Est. Priority Date: 08/03/2001
  • Status: Expired due to Term
First Claim
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1. A chip card comprising:

  • a battery;

    an external power source input for coupling to an external power source; and

    a microprocessor being coupled to the external power source input and to the battery, said microprocessor trickle charging the battery when an external power source is coupled to the external power source input.

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