Contactless integrated-circuit card comprising inhibiting means

An integrated circuit card, integrated circuit technology, applied in the field of integrated circuit cards, can solve problems such as unsatisfactory solutions

Inactive Publication Date: 2006-04-12
GEMPLU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the case of contactless cards, such as information exchange over a distance via radio frequency waves, this solution is unsatisfactory
This is because the exchange of information can take place through the cellophane seal, so the seal is no longer a guarantee that the card has not been used before

Method used

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  • Contactless integrated-circuit card comprising inhibiting means
  • Contactless integrated-circuit card comprising inhibiting means
  • Contactless integrated-circuit card comprising inhibiting means

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] Figures 1 to 5 The different steps of manufacturing the integrated circuit card according to the first embodiment of the present invention are shown.

[0025] The integrated circuit card 10 has a card body 12 which has the shape of a rectangular sheet with rounded corners and is generally made of plastic by injection molding or sheet pressing. The card body 12 carries an integrated circuit (not shown), also called a chip, which can be embedded in the card body 12 .

[0026] Such as figure 1 As shown in , the card body 12 carries an antenna 14 on one of its two surfaces.

[0027] The antenna 14 may be formed, for example, by screen printing with conductive ink or by etching copper, aluminum or tin-lead alloys. The antenna 14 can also be formed by spraying metal on plastic. The typical thickness of the conductive strips thus formed is, for example, between 3 and 50 microns.

[0028] The antenna 14 is produced conventionally in the form of a continuous conductor 16 w...

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PUM

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Abstract

The invention concerns a contactless integrated circuit card, wherein a card body (12) in the form of a wafer bears an integrated circuit and an antenna (14) enabling remote communication between the integrated circuit and a reception terminal, and wherein the antenna (14), which extends in the card body (12) is made in the form of a winding, over several turns, on a conductor (16). The invention is characterised in that at least a conductive connection bridge (24) is provided connecting at least two antenna (14) turns to reduce the inductance thereof and the connection bridge (24) extends partly in a rupture zone (26) of the card body (12) which is designed to be ruptured when the card is first used to rupture the connecting bridge (10).

Description

[0001] This application is a divisional application of the application dated March 26, 1999, the application number 99804823.2, and the title of the invention "Contactless Integrated Circuit Card with Disabling Device". technical field [0002] The invention relates to an integrated circuit card with disabling means. The card can be contactless or contact. [0003] The invention particularly relates to a non-contact integrated circuit card. The card body in sheet form carries an integrated circuit and an antenna through which the integrated circuit can remotely communicate with a receiving end. The antenna located in the plane of the card body is composed of A coil formed by several turns of a conductive track. Background technique [0004] In a specific application, the integrated circuit card is also called a smart card, and is used as a payment tool. The initial fund of value units recorded in the memory of the smart card is reduced by at least one unit each time the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/073G06K19/077G06K19/07
CPCG06K19/073G06K19/07726G06K19/07749
Inventor P·帕特里斯L·奥多R·弗雷曼T·德丰泰尼斯M·扎夫拉尼
Owner GEMPLU
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