TW221504B - Device for detecting attempts at fraud on an apparatus for reading and writing on a chip card - Google Patents

Device for detecting attempts at fraud on an apparatus for reading and writing on a chip card

Info

Publication number
TW221504B
TW221504B TW82100076A TW82100076A TW221504B TW 221504 B TW221504 B TW 221504B TW 82100076 A TW82100076 A TW 82100076A TW 82100076 A TW82100076 A TW 82100076A TW 221504 B TW221504 B TW 221504B
Authority
TW
Taiwan
Prior art keywords
fraud
writing
reading
chip card
detecting attempts
Prior art date
Application number
TW82100076A
Other languages
Chinese (zh)
Inventor
Vauclin Philippe
Original Assignee
Landis & Gyr Betr S Ag
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 Landis & Gyr Betr S Ag filed Critical Landis & Gyr Betr S Ag
Application granted granted Critical
Publication of TW221504B publication Critical patent/TW221504B/en

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Abstract

A device for detecting attempts at fraud by connection of an electric feed line (13) to an apparatus for reading and writing on a chip card (3) essentially comprises a resonance unit (6) coupled to a contacting element (2) of the apparatus, and a measuring device (7). In the resonance unit (6) a generator (4) which is coupled to a resonator (1) by way of an impedance converter (5) generates a standing wave. The feed line (13) disturbs the properties of the resonator (1), that being detected by the measuring device (7) and evaluated.
TW82100076A 1992-11-16 1993-01-07 Device for detecting attempts at fraud on an apparatus for reading and writing on a chip card TW221504B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH351992 1992-11-16

Publications (1)

Publication Number Publication Date
TW221504B true TW221504B (en) 1994-03-01

Family

ID=51348093

Family Applications (1)

Application Number Title Priority Date Filing Date
TW82100076A TW221504B (en) 1992-11-16 1993-01-07 Device for detecting attempts at fraud on an apparatus for reading and writing on a chip card

Country Status (1)

Country Link
TW (1) TW221504B (en)

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