Contact-free portable object comprising one or several contact-free peripheral devices

A technology of peripheral devices and portable objects, applied in the field of non-contact display peripheral devices

Inactive Publication Date: 2002-12-04
ASK CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the battery must be replaced whenever it is depleted

Method used

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  • Contact-free portable object comprising one or several contact-free peripheral devices
  • Contact-free portable object comprising one or several contact-free peripheral devices
  • Contact-free portable object comprising one or several contact-free peripheral devices

Examples

Experimental program
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Embodiment Construction

[0018] The display peripheral device according to the present invention can be mounted on a non-contact portable object such as a smart card. Figure 1 shows an ISO-type contactless smart card with an integrated display peripheral. The card 10 consists of a chip 12 which, when placed in the field of the reader, initiates communication with the reader via an antenna 14 on the card. Here the antenna is constructed with coils of progressively larger perimeter. The two ends of the antenna are connected to the chip 12 . The display peripheral device 20 is composed of a chip (not shown in the figure), a display screen 16, a planar coil 18 connected to the chip of the peripheral device, and coils around the periphery that gradually increase in size. The size of the planar coils mentioned will vary with the specific features of the card and display peripherals. In fact, the display peripheral is only magnetically coupled to the card at the operating frequency of the smart card.

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PUM

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Abstract

The present invention relates to a display peripheral device of a portable object such as a smart card (10), capable of displaying information related to the use of the portable object. The display peripheral device has at least one chip, a display (16) and an energy and information receiving device (18) which is not in ohmic connection with the portable object. The energy and information receiving device is a planar coil, which acts as the secondary coil of a transformer, and the primary stage of the transformer is formed by the antenna (14) of the portable object, and the antenna (14) of the portable object receives signals from the portable object through electromagnetic coupling. Reader energy and information.

Description

technical field [0001] The present invention relates to a peripheral device of a contactless portable object such as a smart card, especially a peripheral device of a contactless display. Background technique [0002] Contact or contactless portable objects, such as smart cards, are widely used in many ways today. Usually an ISO format card is coupled to a reader. These smart cards are powered through the reader, that is, they receive magnetic field energy through the reader and communicate with the reader. So in the transportation department, all expressway companies have developed such a system to recommend that all users use this card to simplify toll charges at station gates, commonly referred to as electronic toll cards. A user of such a system inserts a card into a reader at a toll booth, and communication occurs between the card and the reader. This communication enables the user to confirm and know the amount of toll due on the user's account. [0003] In public t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13B42D15/10G06K19/07G06K19/077
CPCG06K7/10178G06K19/07703G06K19/07749G06Q20/201G06K19/077
Inventor 奥利维尔·帕尔劳特
Owner ASK CORP
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