Patent ID: 8488193
Filing Date: 2013-07-16
Classification: G06K,H04N

Abstract:
1. A method of storing data, where the data to be stored are printed in the form of a dot pattern comprising a plurality of dots on the surface of a printable medium using a printer, the dot pattern includes at least one dot pattern block covering a given area on the printable medium, and the area that is covered by the at least one dot pattern block on the medium to be printed contains a plurality of subareas of equal size in rows and/or in columns and in each of which a respective dot pattern representing a portion of the data to be stored is printed, wherein each subarea contains one of multiple different base dot patterns, each of the multiple base dot patterns is composed of two dots that with respect to a virtual reference point are point symmetrical within the respective subarea, and the base dot patterns have at least one of the following characteristics: they differ with respect to the angle of the virtual connecting line between the two dots of the respective base dot pattern relative to a virtual reference line, and/or they have a different spacing between the dots, and the reference dot pattern is composed of three dots, one of the dots being situated in the center of the subarea containing the reference dot pattern, and the other two dots being thereadjacent in the region of the subarea therebelow and the nonprinted virtual connecting line between the two lower dots of the reference dot pattern having a horizontal form.