Magnetic cards employing optical recording material

Details Magnetic cards employing optical recording material Magnetic cards employing optical recording material

1996-10-30

1998-02-03

Hajec, Donald T.

Registers

Records

Particular code pattern

235454, 235380, G06K 1906, G06K 710

Patent

active

057147485

ABSTRACT:
This invention relates to a magnetic card for use in public telephones or public traffic such as subway, which includes a blank card, a magnetic layer formed on the blank card for recording variable information indicating amount of available money left according to amount used of the card, and an optical recording layer formed on the magnetic layer for recording invariable information marking card price. It is possible to prevent the magnetic cards from deterioration of the record like erasure of record of money due to mis-handling in everyday life and has the advantage of high response speed because of utilization of light.

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Japanese publication No. 91-1334, Mar. 1991.
Japanese publication No. 91-2062, Apr. 1991.

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