Patent ID: 7424975
Filing Date: 2008-09-16
Classification: G06K

Abstract:
1. In a two dimensional barcode including a plurality of darkened modules and a plurality of non-darkened modules, each of said darkened modules including a substantially rectangular array of pixel locations including (i) an outer boundary of said array including a top row of the pixel locations, a bottom row of the pixel locations, a left most column of the pixel locations, and a right most column of the pixel locations, and (ii) an inner portion of said array including the ones of said pixel locations not included within the outer boundary, a method of printing one or more of said darkened modules, comprising: printing a pixel at a plurality of the pixel locations included in the inner portion of the array of each of the one or more of said darkened modules; printing a pixel at at least one of the pixel locations of the bottom row of the pixel locations or the left most column of the pixel locations of the outer boundary of the array of each of the said one or more darkened modules; and printing a pixel at less than all of the pixel locations of the top row of the pixel locations and the right most column of the pixel locations of the outer boundary of the array of each of the one or more of said darkened modules.