Card and its processor

Abstract

Abstract PURPOSE:To prevent a card from invalid use by breaking fixed data to be optically read out in accordance with its using frequency through a breaking mechanism part. CONSTITUTION:The fixed data to be optionally read out by light with a prescribed wavelength area are written in a fixed data recording part B of the card 1 and covered with ink or the like capable of transmitting light with the prescribed wavelength area, so that the fixed data can not be observed. The breaking mechanism part 24 is also formed on the card 1,and the balance of a normal data recording part A is turned to zero by using the card 1 by the prescribed number of times, the fixed data in the recording part B are broken down by punch or the like through the mechanism part 24 under control by a decision control part 26. Invalid adhesion to the card can be surely detected by a thickness detecting mechanism 25 or the like. Thus, the card can be prevented from invalid use.

Inventors

• 👤 Kosaku Shiono
• 👤 幸策 塩野

Bibliographic Details