Patent ID: 6209096
Filing Date: 2001-03-27
Classification: G06T,G10H,G11B,H04N

Abstract:
A method of storing constituent data of first information along with constituent data of second information, said constituent data of first information comprising a plurality of predetermined data units, said method comprising the steps of:dividing at least part of said constituent data of second information into a plurality of small-size data pieces;arithmetically operating respective values of particular ones of said predetermined data units of said first information in accordance with a predetermined algorithm containing a value of each of said data pieces as a parameter, wherein said step of arithmetically operating includes a step of determining a difference in value between one of the particular data units and a predetermined other one of the particular data units, a step of determining an operating value using, as parameters, the difference and a value of one of the data pieces and a step of arithmetically operating a value of the one particular data unit with the determined operating value; andstoring the data of said first information including the arithmetically-operated particular data units, whereby said constituent data of first information is stored with at least part of said constituent data of second information incorporated therein.