Patent ID: 6959383

Claim:
A method performed by a processor of incorporating, into data of first information, data of second information, the data of said first information including a group of data units, said method comprising the steps of: selecting at least two of the data units of said first information and obtaining a data-related value that relates to respective values of said at least two data units; selecting, from among a group of the data of said second information, a particular data segment to be incorporated into one of the data units of said first information; generating substitute data to replace a content of the one data unit of said first information, on the basis of a predetermined function using, as variables, the data-related value and a value of the particular data segment; and replacing a content of the data unit corresponding to a predetermined one of said at least two data units of said first information, by the substitute data generated by said step of generating wherein said step of generating includes a step of determining whether or not said data-related value meets a predetermined condition, and wherein replacement by the substitute data to incorporate the particular data segment is executed on the data unit for which said data-related value is determined as meeting the predetermined condition but said replacement by the substitute data is not executed on the data unit for which said data-related value is determined as not meeting the predetermined condition.