Patent ID: 6832315
Filing Date: 2004-12-14
Classification: G06K

Abstract:
A method of labeling an article, comprising:generating a first character string comprising two or more characters as an identifier; coding said first character string to give an identification number comprising seven or more binary digits for each character; forming a sequence of binary digits comprising a plurality of said identification numbers, having identical marker portions therebetween to increase a number of different keys possible from a given length of said identification number; storing part of said sequence of binary digits corresponding to one or more identical said identification numbers in a data store, said data store comprising a layer of material having a permanent pattern of a detectable magnetic property; and at least one of attaching the data store to an article and incorporating the data store in an article; wherein said first character string comprises a decimal number, and said coding of said decimal number to give said identification number comprises: multiplication of said decimal number by an integer to form a resultant number; conversion of said resultant number into a number base; and conversion of each digit of said number base to binary, resulting in said binary digits.