Control circuit for near field communication (NFC) and smart card

A control circuit and near-field communication technology, applied in the field of NFC communication, can solve the problems of shortening product service life, battery power loss, waste, etc., and achieve the effect of reducing devices, simplifying hardware circuits, and reducing costs

Active Publication Date: 2018-04-13
SHENZHEN EXCELSECU DATA TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a control circuit and a smart card for NFC near-field communication, aiming to solve the problem in the prior art of using battery power to obtain electricity, resulting in loss and waste of battery power, and shortening the service life of the product The problem

Method used

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  • Control circuit for near field communication (NFC) and smart card
  • Control circuit for near field communication (NFC) and smart card
  • Control circuit for near field communication (NFC) and smart card

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Embodiment Construction

[0025] In order to enable those skilled in the art to better understand this solution, the technical solution in this solution embodiment will be clearly described below in conjunction with the accompanying drawings in this solution embodiment. Obviously, the described embodiment is a part of this solution Examples, but not all examples. Based on the embodiments in this solution, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this solution.

[0026] The term "comprising" and any other variants in the description and claims of this solution and the above drawings mean "including but not limited to", and are intended to cover non-exclusive inclusion. In addition, the terms "first" and "second", etc. are used to distinguish different objects, not to describe a specific order.

[0027] The realization of the present invention is described in detail below in conjunction with specific accompa...

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PUM

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Abstract

The invention discloses a control circuit for near field communication (NFC) and a smart card. The control circuit comprises at least one antenna, a voltage processing module, a control module, a gating switch module and a preset number of radio frequency communication modules; the antennae acquire wireless electric energy from external NFC equipment and output alternating currents to the voltageprocessing module, and the voltage processing module processes the alternating currents into direct-current power supply voltages to the control module for power supply; the control module outputs a switch control signal to the gating switch module, and the gating switch module switches on or switches off connection between the corresponding radio frequency communication modules and the corresponding antennae according to the switch control signal; and when the radio frequency communication modules and the antennae are connected, the radio frequency communication modules achieve radio frequency communication with the NFC equipment through the antennae. Accordingly, the internal power acquiring problem of the smart card is solved, a battery does not need to be additionally configured, the hardware circuit is simplified, and the smart card has multiple radio frequency communication functions, can be switched among multiple radio frequency communication modes and can be applied to multiple occasions.

Description

technical field [0001] The invention relates to the technical field of NFC communication, in particular to a control circuit and a smart card for NFC near-field communication. Background technique [0002] Near Field Communication (NFC) is a short-range high-frequency radio technology. NFC near-field communication technology is evolved from the integration of non-contact radio frequency identification (RFID) and interconnection technology. It is combined on a single chip. Proximity card readers, proximity cards and peer-to-peer functions enable identification and data exchange with compatible devices within a short distance. NFC near field communication technology is usually used in smart cards. [0003] In the existing NFC communication products, the battery power supply is generally used to solve the problem of power acquisition, which causes the loss and waste of battery power and shortens the service life of the product. Contents of the invention [0004] The embodim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B5/00G08C17/02G05B19/04
CPCG05B19/04G08C17/02H04B5/0025H04B5/0037H04B5/0056H04B5/0081
Inventor 陈柳章
Owner SHENZHEN EXCELSECU DATA TECH
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