Toshio Takizawa

System for authenticating an authorized user of an IC card

Ic card reader/writer and ic card transactions processing apparatus capable of producing various frequency clock pulses

Card transactions processing apparatus, program board for use with such apparatus and method to use such apparatus or board

Secret identification number checking system

Method for operating an IC card reader/writer

System for collating personal identification number

IC CARD READER DETECTS CARD OPERATING FREQUENCY

CARD TRANSACTION PROCESSING APPARATUS

Systeme de classement de numeros d'identification personnels

Verarbeitungsvorrichtung für Kartentransaktionen, Programmierkarte zu ihrem Gebrauch und Verfahren zur Anwendung einer solchen Vorrichtung oder Programmierkarte.