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Coded surface with function flags

  • US 7,182,247 B1
  • Filed: 11/25/2000
  • Issued: 02/27/2007
  • Est. Priority Date: 05/25/1999
  • Status: Expired due to Fees
First Claim
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1. A method of coding a region including applying coded data to a part of the region, the method comprising the steps of:

  • generating coded data indicative of a functional attribute of the part of the region, a relative location on the region and an identity of the region,printing the coded data on the relative location on the region using ink that is substantially invisible to the human eye; and

    printing visible content on the relative location, wherein the visible content corresponds to the coded data;

    wherein the visible content and the invisible coded data are printed by the same printer.

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