Patent ID: 7191336
Filing Date: 2007-03-13
Classification: G07B,H04N

Abstract:
1. A computer implemented method of producing a background image representing data comprising the steps of: producing a first encoding of the data into a first binary array; producing a second encoding of the data into a second binary array; representing the first binary array as a first set of modules of a first size of n×n pixels wherein each pixel is either white or black and every pixel in the module is identical to every other pixel in the module on nodes of a first lattice; representing the second binary array as a second set of modules of a second size of m×m wherein each pixel is either white or block and every pixel in the module is identical to every other pixel in the module, which is smaller than the first size on nodes of a second lattice; combining the first and second sets of modules and storing the combined result in a memory; printing the first and second sets of modules on a printing medium; superimposing graphic material on the modules before printing; and wherein the graphic material is an indicia.