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Paper-based control of computer systems

  • US 6,681,028 B2
  • Filed: 05/19/1999
  • Issued: 01/20/2004
  • Est. Priority Date: 07/27/1995
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • presenting a business card of an individual to an optical sensor, the optical sensor producing output data;

    decoding steganographically-encoded plural-bit data from the sensor output data; and

    using said plural-bit data to establish a link to an internet address having data relating to the proprietor of said business card.

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  • 7 Assignments
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