JPS6455691A - Memory card device - Google Patents

Memory card device

Info

Publication number
JPS6455691A
JPS6455691A JP21199687A JP21199687A JPS6455691A JP S6455691 A JPS6455691 A JP S6455691A JP 21199687 A JP21199687 A JP 21199687A JP 21199687 A JP21199687 A JP 21199687A JP S6455691 A JPS6455691 A JP S6455691A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
memory card
terminal
potential
insulating seal
adhered
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
JP21199687A
Inventor
Toshio Tsuji
Kazuhiko Sueoka
Original Assignee
Matsushita Electric Ind Co Ltd
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 use a thin memory card with simple constitution by providing a potential detecting terminal in a part of the connector of a reader/writer and adhering an insulating seal to a terminal having the earth potential or a certain potential of the memory card corresponding to this potential detecting terminal. CONSTITUTION:A connector 13 of a reader/writer 2 is provided with a potential detecting terminal 12, and a terminal 4 of a memory card 1 corresponding to this potential detecting terminal 12 is set to the earth potential or a certain potential, and the insulating seal is adhered to this terminal 4. That is, when the insulating seal is not adhered to the terminal of the memory card, the potential detecting terminal of the connector part and this terminal are connected and data is freely written in the memory card. When the insulating seal is adhered to the terminal of the memory card, write to the memory card is impossible. Thus, it is unnecessary to provide the memory card itself with a switch, and write protection of the thin memory card is performed with the simple constitution.
JP21199687A 1987-08-26 1987-08-26 Memory card device Pending JPS6455691A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21199687A JPS6455691A (en) 1987-08-26 1987-08-26 Memory card device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21199687A JPS6455691A (en) 1987-08-26 1987-08-26 Memory card device

Publications (1)

Publication Number Publication Date
JPS6455691A true true JPS6455691A (en) 1989-03-02

Family

ID=16615169

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21199687A Pending JPS6455691A (en) 1987-08-26 1987-08-26 Memory card device

Country Status (1)

Country Link
JP (1) JPS6455691A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0725401A2 (en) * 1995-02-03 1996-08-07 Kabushiki Kaisha Toshiba Information storage apparatus and information processing apparatus using the same
JPH09114740A (en) * 1995-10-17 1997-05-02 Yamaichi Electron Co Ltd Ic memory card
US6471130B2 (en) 1995-02-03 2002-10-29 Kabushiki Kaisha Toshiba Information storage apparatus and information processing apparatus using the same
USRE38997E1 (en) * 1995-02-03 2006-02-28 Kabushiki Kaisha Toshiba Information storage and information processing system utilizing state-designating member provided on supporting card surface which produces write-permitting or write-inhibiting signal

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0725401A2 (en) * 1995-02-03 1996-08-07 Kabushiki Kaisha Toshiba Information storage apparatus and information processing apparatus using the same
USRE38997E1 (en) * 1995-02-03 2006-02-28 Kabushiki Kaisha Toshiba Information storage and information processing system utilizing state-designating member provided on supporting card surface which produces write-permitting or write-inhibiting signal
EP0725401A3 (en) * 1995-02-03 1997-12-29 Kabushiki Kaisha Toshiba Information storage apparatus and information processing apparatus using the same
EP1113447A1 (en) * 1995-02-03 2001-07-04 Kabushiki Kaisha Toshiba Information storage apparatus and information processing method using the same and connector pin assembly
US6292850B1 (en) 1995-02-03 2001-09-18 Kabushiki Kaisha Toshiba Information storage system including state-designating area on memory card and detecting presence or absence of state-designating member on state-designating area to inhibit or allow writing of information
US6338104B1 (en) 1995-02-03 2002-01-08 Kabushiki Kaisha Toshiba System including single connector pin supporter having two separate plurality of connector pins with one set of pins contacting state designating portion of memory card indicating write prohibit state
US6471130B2 (en) 1995-02-03 2002-10-29 Kabushiki Kaisha Toshiba Information storage apparatus and information processing apparatus using the same
US7104459B2 (en) 1995-02-03 2006-09-12 Kabushiki Kaisha Toshiba Information storage apparatus and information processing apparatus using the same
JPH09114740A (en) * 1995-10-17 1997-05-02 Yamaichi Electron Co Ltd Ic memory card

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