The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 14, 1995

Filed:

Mar. 01, 1993
Applicant:
Inventor:

Takaaki Yui, Houya, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395700 ; 3642592 ; 3642802 ;
Abstract

Various calculations and also games are executed when one of memory devices, for instance, IC cards into which various application programs have been stored is electrically connected to a data processing device. The respective memory devices store ID codes preselected to the sorts thereof. The data processing device compares the ID code used in the previous data processing operation with the ID code being used in the present data processing operation while executing the application program of the memory device, and judges whether or not the same memory device is being electrically connected to the data processing device. When a judgement is made that the different memory device is electrically connected, the memory content of the memory for executing the application program employed in the data processing device is cleared, and another program of the memory device newly connected to the data processing device is performed with employment of the memory the content of which has been cleared.


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