Non-contacting intelligent card increasing card reading distance

A non-contact, smart card technology, which is applied to record carriers used in machines, instruments, computer parts, etc., can solve the problems of high cost and difficult compatibility with cards, and achieve the effect of increasing the card reading distance and low cost

Inactive Publication Date: 2008-01-30
SHANGHAI HUAHONG INTEGRATED CIRCUIT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to achieve the purpose of increasing the card reading distance, although the original card can be replaced by a non-contact smart card that conforms to other protocols (supporting a longer card reading dista

Method used

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  • Non-contacting intelligent card increasing card reading distance

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0013] As shown in FIG. 1 , the existing contactless smart card 1 includes an antenna 3 and a contactless smart card chip 2 , and the antenna 3 can obtain energy from the carrier signal sent by the card reader 4 for the contactless smart card chip 2 to work.

[0014] There are two main factors affecting the card reading distance: the carrier energy provided by the card reader, and the demodulation sensitivity of the card and the card reader. On the premise that the demodulation sensitivity of the card and the card reader is high enough, when the distance between the card and the card reader antenna is too long, the energy obtained by the card antenna from the carrier wave emitted by the card reader is insufficient, which will cause the smart card in the card to Chip doesn't work. Under the premise of sufficient energy, when the distance between the card and the card reader antenna is longer, the carrier signal received by the card or card reader antenna is smaller and the nois...

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PUM

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Abstract

The invention discloses a non-contact smart card increasing distance of reading card, in particular to a non-contact smart card that is not often be used and has more chances in touch with lights, being characterized in that the card is provided with a thin solar cell which is sealed inside the non-contact smart card together with a chip of the non-contact smart card, and when the card is out of work and has lights, the solar cell receives light energy and transforms light energy into electricity energy to be stored; while when the card starts is in work, the card controls the solar cell and uses the stored electricity energy to provide electricity for the chip of the smart card in the card and provide energy for working. The invention has the advantages of reducing cost and conveniently realizing a non-contact smart card which can increase distance of reading card, as well as having the compatibility with the original issued cards and the original system of reading and issuing card.

Description

technical field [0001] The invention relates to a non-contact smart card, in particular to a non-contact smart card which can increase the card reading distance for certain application occasions. Background technique [0002] With the continuous promotion of smart card technology, contactless smart cards are being widely used in more and more fields such as identification and logistics management. With the continuous expansion of application fields and usage, it is required to control costs and be compatible with issued cards At the same time, in order to facilitate the application or expand to new application fields, the card reading distance is also constantly putting forward higher requirements. [0003] In order to achieve the purpose of increasing the card reading distance, although the original card can be replaced by a non-contact smart card that conforms to other protocols (supporting a longer card reading distance), due to the use of a card that conforms to the new ...

Claims

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Application Information

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IPC IPC(8): G06K19/07
Inventor 许国泰
Owner SHANGHAI HUAHONG INTEGRATED CIRCUIT
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