Encoding and decoding a message within an image

  • US 6,819,776 B2
  • Filed: 12/29/2001
  • Issued: 11/16/2004
  • Est. Priority Date: 08/22/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. A device for loading address information into a data communication application, comprising:

  • (a) a reader for sensing light from a selected pattern of pixels and determining pixel values of pixels in said pattern of pixels, said pattern of pixels constituting a foreground visual image that conveys recognizable information to an observer and having embedded address information; and

    (b) processor that is adapted to recover embedded address information from the pattern of pixels, said processor being adapted to determine the embedded address information by determining binary values via comparing pixel values of selected pixels to the pixel values of pixels neighboring thereto in the pattern of pixels and for loading the address information onto the data communication application for communicating according to the address information.

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