A cell phone unlocking device based on NFC

A technology for unlocking devices and mobile phones, applied in electromagnetic radiation induction, telephone communication, nan, etc., can solve problems such as voyeurism and lack of security, and achieve high reliability and privacy

Inactive Publication Date: 2015-03-25
SHANGHAI HUAHONG INTEGRATED CIRCUIT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The common unlocking methods of existing mobile phones include: password, sliding, drawing and graphics, etc., which are not safe and can be peeped out

Method used

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  • A cell phone unlocking device based on NFC

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Embodiment Construction

[0013] Referring to the accompanying drawings, the NFC-based mobile phone unlocking device includes:

[0014] A mobile phone includes an AP, a first NFC module and an LCD. The AP communicates with the LCD through the LCD standard interface. The AP communicates with the first NFC module through the SPI or I2C standard interface.

[0015] An unlocking device includes a second NFC module.

[0016] The first NFC module communicates wirelessly with the second NFC module through a radio frequency antenna. The first NFC module continuously inquires whether there is a second NFC module close to the outside. When the second NFC module approaches, the second NFC module will respond to the first NFC module, and the two will formally establish communication; the second NFC module will communicate with the data After encapsulating according to the ISO14443A / B, ISO18092 and ISO21481 protocols, the data is sent to the first NFC module through the radio frequency antenna.

[0017] After t...

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PUM

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Abstract

The invention discloses a cell phone unlocking device based on NFC, comprising: a cell phone, which includes an AP, a first NFC module and an LCD, wherein the AP communicates with the LCD through an LCD standard interface to control displaying and unlocking functions of the LCD, the AP communicates with the first NFC module through an SPI or an I2C standard interface, and obtains information about whether an external unlocking stimulation is generated through the first NFC module; and an unlocking device including a second NFC module, wherein the first NFC module communicates in a wireless manner with the second NFC module through a radio frequency antenna, after packaging data in accordance with ISO14443A / B, ISO18092 and ISO21481 protocols, the second NFC module sends the data to the first NFC module, after unpacking the data in accordance with ISO14443A / B, ISO18092 and ISO21481 protocols, the first NFC module sends the data to the AP, and after analyzing and processing the data, the AP transmits the data to the LCD to control unlocking of the LCD. The cell phone unlocking device can improve security of cell phone unlocking.

Description

technical field [0001] The invention relates to the field of mobile phone product design and NFC communication, in particular to an NFC-based mobile phone unlocking device. Background technique [0002] Near Field Communication (NFC), also known as short-range wireless communication, is evolved from contactless radio frequency identification (RFID) and is backward compatible with RFID. NFC technology is a short-range high-frequency wireless communication technology that allows non-contact point-to-point data transmission between electronic devices within a distance of ten centimeters to achieve data exchange. Due to the natural security of NFC technology, it is especially suitable for providing M2M (Machine to Machine) communication for handheld devices such as mobile phones, and is considered to have a very broad prospect in the payment application of handheld devices such as mobile phones. [0003] The common unlocking methods of existing mobile phones include: password, ...

Claims

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Application Information

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IPC IPC(8): H04M1/725H04M1/667H04W4/00G06K7/10
Inventor 王亮
Owner SHANGHAI HUAHONG INTEGRATED CIRCUIT
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