JPS61241888A - Portable medium - Google Patents

Portable medium

Info

Publication number
JPS61241888A
JPS61241888A JP8396185A JP8396185A JPS61241888A JP S61241888 A JPS61241888 A JP S61241888A JP 8396185 A JP8396185 A JP 8396185A JP 8396185 A JP8396185 A JP 8396185A JP S61241888 A JPS61241888 A JP S61241888A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
data
erasion
cpu
supplied
memory
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8396185A
Inventor
Yasuo Iijima
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

PURPOSE: To erase undesired data and to avoid erasion of those data to be preserved permanently by storing data in the 1st erasion-enable memory means or the 2nd erasion-unable memory means in response to the specific data added to the memory data supplied from outside.
CONSTITUTION: An address storing data to be erased and the specific conditions for erasion are supplied to a CPU 3 from a CPU 11 of an IC card handling machine 10. The CPU 3 decides whether the data can be preserved permanently or not by a fact whether a flag is set up or not in an area (e) included in the property information (b) added to the data stored in the address supplied. If it is decided that the data cannot be preserved permanently, the CPU 3 decides whether the coincidence is obtained between the specific conditions for erasion supplied and the specific conditions for erasion of an area (f) in the information (b) added to the memory data. When the coincidence is obtained, the memory data is erased. While the property discordance signal is supplied to the CPU 11 in case data can be preserved permanently. Thus it is possible to erase the undesired data and avoid erasion of the data to be preserved permanently.
COPYRIGHT: (C)1986,JPO&Japio
JP8396185A 1985-04-19 1985-04-19 Portable medium Pending JPS61241888A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8396185A JPS61241888A (en) 1985-04-19 1985-04-19 Portable medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8396185A JPS61241888A (en) 1985-04-19 1985-04-19 Portable medium

Publications (1)

Publication Number Publication Date
JPS61241888A true true JPS61241888A (en) 1986-10-28

Family

ID=13817155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8396185A Pending JPS61241888A (en) 1985-04-19 1985-04-19 Portable medium

Country Status (1)

Country Link
JP (1) JPS61241888A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63301389A (en) * 1987-06-01 1988-12-08 Mitsubishi Electric Corp Ic card
US4827512A (en) * 1985-10-07 1989-05-02 Kabushiki Kaisha Toshiba Programmable portable electronic device
JPH0340087A (en) * 1989-07-06 1991-02-20 Csk Corp Check data informing system for card check system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4827512A (en) * 1985-10-07 1989-05-02 Kabushiki Kaisha Toshiba Programmable portable electronic device
JPS63301389A (en) * 1987-06-01 1988-12-08 Mitsubishi Electric Corp Ic card
JPH0340087A (en) * 1989-07-06 1991-02-20 Csk Corp Check data informing system for card check system

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