Personal data card securing method, involves contacting fingers of user with projection relief placed on granular side of card during use of card, so that finger print of user has discontinuous characters to periodically alter finger print

摘要

The method involves contacting fingers of user with projection relief placed on a granular side (3) of a personal data card (1) during utilization of the card, so that finger print of the user has discontinuous characters on the card to automatically and periodically alter the finger print on the card. Characteristics of the finger print are stored in an integrated circuit (4) of the card. Independent claims are also included for the following: (A) a personal data card (B) a personal data card case.