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Novel IC card sharing NFC antenna

An antenna, a new type of technology, applied in the field of new IC cards, can solve the problems of mutual interference between antennas, increased size of IC cards, non-contact card functions of IC cards cannot be used normally, etc., to achieve the effect of avoiding mutual interference and meeting miniaturization

Inactive Publication Date: 2017-06-16
WATCHDATA SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, a corresponding RF antenna needs to be designed for each contactless card chip, but if multiple RF antennas are superimposed on the periphery of the same device, the antennas will inevitably interfere with each other, resulting in the failure of the contactless card function of the IC card. And setting multiple RF antennas in an IC card will also increase the size of the IC card

Method used

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  • Novel IC card sharing NFC antenna
  • Novel IC card sharing NFC antenna
  • Novel IC card sharing NFC antenna

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] figure 1 It shows a schematic structural view of a novel IC card sharing an NFC antenna provided in a specific embodiment of the present invention. As can be seen from the figure, the novel IC card includes N contactless IC card chips 1, a main control chip 2 , an analog switch 3 , an RF antenna 4 and a rechargeable battery 5 . Wherein, N≥2, the main control chip 2 is connected with the N non-contact IC card chips 1 respectively, the analog switch 3 is connected with the main control chip 2 and the RF antenna 4 respectively, and the analog switch 3 is also connected with the N contactless IC card chips 1 respectively. Type IC card chip 1 is connected, and rechargeable battery 5 is connected with main control chip 2 and analog switch 5 respectively, and is used for main control chip 2 and analog switch 5 to supply power.

[00...

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Abstract

The invention, which belongs to the smart card field, discloses a novel IC card sharing an NFC antenna. The novel IC card comprises N non-contact IC card chips (1), a main control chip (2) connected with the N non-contact IC card chips (1), an analog switch (3) and an RF antenna (4), wherein the N is larger than or equal to 2. The analog switch (3) is respectively connected with the main control chip (2) and the RF antenna (4); and the analog switch (3) is respectively connected with the N non-contact IC card chips (1). Besides, the novel IC card also includes a rechargeable battery (5) for supplying power for the main control chip (2) and the analog switch (3). According to the novel IC card, a problem of the mutual interface between a plurality of RF antennas in the existing IC card can be solved; and with one RF antenna, an equipment miniaturization demand can be satisfied.

Description

technical field [0001] The invention relates to the field of non-contact IC technology, in particular to a novel IC card sharing an NFC antenna. Background technique [0002] The traditional contactless IC card has only one card chip and one RF antenna, and its functions are relatively single. As users put forward more functional requirements for IC cards, new communication interfaces are required to be introduced (such as Bluetooth communication), and multiple card application functions need to be combined at the same time, resulting in the need for multiple card chips built into one IC card. Usually, a corresponding RF antenna needs to be designed for each contactless card chip, but if multiple RF antennas are superimposed on the periphery of the same device, the antennas will inevitably interfere with each other, resulting in the failure of the contactless card function of the IC card. Moreover, arranging multiple RF antennas in one IC card will also increase the volume ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/077G06K19/073
CPCG06K19/0775G06K19/07345G06K19/07773
Inventor 郑文德
Owner WATCHDATA SYST
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