TW364882B - Protection sheet for non-contact type IC card - Google Patents

Protection sheet for non-contact type IC card

Info

Publication number
TW364882B
TW364882B TW087111668A TW87111668A TW364882B TW 364882 B TW364882 B TW 364882B TW 087111668 A TW087111668 A TW 087111668A TW 87111668 A TW87111668 A TW 87111668A TW 364882 B TW364882 B TW 364882B
Authority
TW
Taiwan
Prior art keywords
card
contact type
protection sheet
data
induction
Prior art date
Application number
TW087111668A
Other languages
Chinese (zh)
Inventor
Yasuhiro Murasawa
Original Assignee
Mitsubishi Electric Corp
Mitsubishi Elec Sys Lsi Design
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
Application filed by Mitsubishi Electric Corp, Mitsubishi Elec Sys Lsi Design filed Critical Mitsubishi Electric Corp
Application granted granted Critical
Publication of TW364882B publication Critical patent/TW364882B/en

Links

Abstract

The inventions provides the method for preventing fault operation to overwrite the data on IC card. The method is to mount a dismountable induction film on the data input of non-contact type IC card. So, the magnetic field around the non-contact type IC card is obstructed or decayed and the induction voltage generated from the induction coil by the associated magnetic field is lower than the operation voltage of IC card. The data overwriting can be prevented.
TW087111668A 1998-01-12 1998-07-17 Protection sheet for non-contact type IC card TW364882B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP381898A JPH11203436A (en) 1998-01-12 1998-01-12 Protection sheet for non-contact ic card

Publications (1)

Publication Number Publication Date
TW364882B true TW364882B (en) 1999-07-21

Family

ID=11567782

Family Applications (1)

Application Number Title Priority Date Filing Date
TW087111668A TW364882B (en) 1998-01-12 1998-07-17 Protection sheet for non-contact type IC card

Country Status (2)

Country Link
JP (1) JPH11203436A (en)
TW (1) TW364882B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004103703A (en) * 2002-09-06 2004-04-02 Ricoh Co Ltd Semiconductor device and processing system of signals having different levels using that semiconductor device

Also Published As

Publication number Publication date
JPH11203436A (en) 1999-07-30

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