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Radio frequency card and its working method

A working method and radio frequency card technology, applied in the field of smart cards, can solve problems such as inconvenience and achieve the effect of improving user experience

Active Publication Date: 2021-04-27
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a radio frequency card and its working method, which is used to realize the multiple functions of one card of the radio frequency card, solve the problem of inconvenience caused by one card for one use, and improve user experience

Method used

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  • Radio frequency card and its working method
  • Radio frequency card and its working method

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Embodiment Construction

[0039] In order to enable those skilled in the art to better understand the technical solution of the present invention, the radio frequency card provided by the present invention and its working method will be described in detail below in conjunction with the accompanying drawings.

[0040] figure 1 A schematic structural diagram of a radio frequency card provided in Embodiment 1 of the present invention, such as figure 1 As shown, the radio frequency card includes: a signal selector 1, at least three chips, an input coil corresponding to the chip and an output coil corresponding to the chip, the signal selector 1 is connected to the input coil and the chip, and the output coil is connected to the chip.

[0041] The input coil is used to generate the first induced voltage according to the first carrier signal sent by the card reader, and send the first induced voltage to the signal selector 1 .

[0042] The signal selector 1 is used to record the chip number of at least one ...

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PUM

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Abstract

The invention discloses a radio frequency card and its working method. The radio frequency card includes: a signal selector, at least three chips, an input coil corresponding to the chip and an output coil corresponding to the chip, the signal selector is connected to the input coil and the chip, the The output coil is connected to the chip; the signal selector is used to sequentially control the at least one chip according to the preset chip priority corresponding to each chip number in the chip number of the at least one chip, according to the order of the preset chip priority. One chip is communicated with the corresponding input coil, so that the chip corresponding to the current preset chip priority works under the action of the first induced voltage output by the corresponding input coil, until the chip corresponding to the current preset chip priority sends to the reader until the card successfully sends the data. The present invention realizes one card with multiple functions of the radio frequency card, solves the problem of inconvenience caused by one card with one function, and improves user experience.

Description

technical field [0001] The invention relates to the technical field of smart cards, in particular to a radio frequency card and its working method. Background technique [0002] The contactless card (RFID card) is composed of a chip and an inductive antenna, which obtains energy and exchanges data through the induction of the antenna coil. At present, contactless cards are widely used in many fields, especially in the field of transportation. There are many kinds of non-contact protocols, among them, the protocols defined by international standards are Type A and Type B, and there are many other communication protocols in practical applications that have not been included in the international standards. Since different industry applications usually use different communication protocol standards, it is currently impossible to integrate these industry applications on one card. For example, the bus application in a city uses one communication protocol, and the micropayment in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K19/07G06K19/077
CPCG06K19/0724G06K19/07745G06K19/07749
Inventor 张伦泳
Owner CHINA UNITED NETWORK COMM GRP CO LTD