Method and apparatus for positively identifying an individual

An identification system for identifying an individual comprising:

• first computer means including first clock means for generating a first time dependent dynamic variable, means for storing a predetermined static variable, first means for utilizing said first time dependent dynamic variable and said static variable to calculate a first non-predictable code in accordance with a predetermined algorithm, and means for providing a visual display of the first non-predictable code calculated at at least a selected time interval;
• second computer means including second clock means for generating a second time dependent dynamic variable, means for obtaining said predetermined static variable, second means for utilizing said second time dependent dynamic variable and said static variable to calculate at a selected time interval a second non-predictable code in accordance with said predetermined algorithm, means for obtaining the first non-predictable code displayed during said selected time interval, match means for comparing the second non-predictable code generated during said selected time interval with the first non-predictable code obtained during said selected time interval, and means responsive to a match between said first and second non-predictable codes in said match means for signifying identification;
• said first and second computer means independently generating said first and second non-predictable codes for comparison thereof without communication of the second computer means or the second clock means back to the first computer means there being no physical or electrical connection between said first and second computer means;
• and
• wherein a static variable is communicated to the means for obtaining at the second computer by an individual located at the first computer, the individual to be identified communicating the displayed first non-predictable code and the static variable to the means for obtaining at the second computer.