CN202652217U - Nfc chip - Google Patents

Nfc chip Download PDF

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Publication number
CN202652217U
CN202652217U CN 201220326851 CN201220326851U CN202652217U CN 202652217 U CN202652217 U CN 202652217U CN 201220326851 CN201220326851 CN 201220326851 CN 201220326851 U CN201220326851 U CN 201220326851U CN 202652217 U CN202652217 U CN 202652217U
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CN
China
Prior art keywords
nfc
microcontroller
input
output interface
signal
Prior art date
Application number
CN 201220326851
Other languages
Chinese (zh)
Inventor
胡光友
Original Assignee
深圳市安派易讯移动科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市安派易讯移动科技有限公司 filed Critical 深圳市安派易讯移动科技有限公司
Priority to CN 201220326851 priority Critical patent/CN202652217U/en
Application granted granted Critical
Publication of CN202652217U publication Critical patent/CN202652217U/en

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Abstract

Disclosed in the utility model is a near field communication (NFC) chip. The NFC chip comprises a microcontroller, an NFC signal processing module and an NFC antenna, wherein the above-mentioned components are connected electrically and successively; and the NFC antenna includes rectangular multi-circle planar coils. Besides, the NFC chip also includes an input-output interface unit that is electrically connected with the microcontroller. Specifically, the NFC antenna is used for receiving an external NFC high-frequency signal of 13.56-MHz; the NFC signal processing module is used for receiving a signal from the NFC antenna and carrying out demodulation on the signal according to an NFC standard or receiving a signal from the microcontroller and carrying out modulation on the signal according to an NFC standard; the microcontroller is used for controlling and carrying out processing on data from the NFC signal processing module and the input-output interface unit; and the input-output interface unit is used for communication between the microcontroller and an external interface device. According to the utility model, a mobile phone without an NFC function can be modified into one with the NFC function conveniently and rapidly and the challenge brought by the built-in NFC function for the mobile phone design can be avoided. Besides, the NFC chip is suitable for batch production to produce a special NFC connector so as to realize connection with existing equipment.

Description

The NFC chip

Technical field

The utility model relates to the near field communication (NFC) field, is specifically related to a kind of chip of supporting mobile phone NFC function.

Background technology

NFC(Near Field Communication) being near field communication (NFC), is to merge the new technology that develops and come on the basis of radio frequency identification (RFID) and interconnection technique, is a kind of short-distance wireless communication technology standard.It is integrated Non-contact Media Reader, contact type intelligent card and point-to-point function on one chip, operates in the frequency range of 13.56MHz, connection that can be between apparatus for establishing in the about 10cm scope.NFC progressively becomes the mainstream technology of mobile non-contact application for consumption electronic products provide a very easily communication modes, has wide market prospects.

In the prior art, the NFC chip usually is embedded into the main control chip of mobile phone the inside on mobile phone and works, and utilizes the storage of mobile phone and the NFC function that computing realizes mobile phone, and this implementation causes many existing mobile phones can't realize the NFC function.

The utility model content

For the deficiencies in the prior art, the utility model proposes a kind of NFC core, can portable ground existing modification on mobile phone be become to have the NFC function.

In order to achieve the above object, the technical scheme that adopts of the utility model is as follows:

The NFC chip comprises the microcontroller, NFC signal processing module, the NFC antenna that are electrically connected successively, and this NFC antenna comprises the planar coil of rectangular multiturn; Also comprise an input/output interface unit, this input/output interface unit is electrically connected microcontroller; Described NFC antenna is used for receiving outside NFC 13.56M Hz high-frequency signal; Described NFC signal processing unit receipt source carries out demodulation in the signal of NFC antenna according to the NFC standard, and perhaps receipt source is modulated according to the NFC standard in the microcontroller signal; Described microprocessor controls and processing derive from the data of NFC signal processing unit and input/output interface unit; Described input/output interface unit is used for microcontroller and external interface device communication.

Preferably, described NFC signal processing unit is ISO14443 RF signal processing unit.

Preferably, described input/output interface unit is the bluetooth communication unit.

Preferably, described input/output interface unit is the USB control unit.

Preferably, described input/output interface unit is the SD/MMC control unit.

Than prior art, the beneficial effects of the utility model are: the utility model can become to have the NFC function with the modification on mobile phone without the NFC function easily, and the challenge that can avoid built-in NFC function mobile phone design to bring, become special-purpose NFC connector applicable to production in enormous quantities, be connected with existing device.

Description of drawings

Fig. 1 is the structural representation of the utility model NFC chip.

Embodiment

Below, by reference to the accompanying drawings and embodiment, the utility model is described further, so that clearerly understand the utility model technological thought required for protection.

As shown in Figure 1, a kind of NFC chip, comprise microcontroller, NFC signal processing module, NFC antenna and input/output interface unit, microcontroller, NFC signal processing module, NFC antenna are electrically connected successively, the input/output interface unit is electrically connected with microcontroller, and the NFC antenna comprises the planar coil of rectangular multiturn.

This NFC antenna is used for receiving outside NFC 13.56M Hz high-frequency signal.

The NFC signal processing unit receives and processes the signal that derives from the NFC antenna, and carries out demodulation according to the NFC standard, transfers to microprocessor controls and processing; Perhaps, receive the data that come from the input/output interface unit by microprocessor controls and processing, modulate according to the NFC standard, result treatment is become NFC signal format, outwards launch by the NFC antenna.

This microcontroller is used for control and processes the data that derive from or send to the NFC signal processing unit, and perhaps, control and processing derive from or send to the data of input/output interface unit.

This input/output interface unit is used for microcontroller and external interface device communication, is used for receiving and processing the signal input of external interface device, transfers to microprocessor controls and processing; Perhaps, receive the data by microprocessor controls and processing, the result is transferred to external interface device.

In the utility model, the NFC signal processing unit can be selected ISO14443 RF signal processing unit.

Bluetooth communication unit, USB control unit, SD/MMC control unit can be selected in the input/output interface unit, and only needing externally, connector corresponding to installing gets final product.

For a person skilled in the art, can make other various corresponding changes and distortion according to technical scheme described above and design, and these all changes and distortion should belong within the protection range of the utility model claim all.

Claims (5)

1.NFC chip is characterized in that: comprise the microcontroller, NFC signal processing module, the NFC antenna that are electrically connected successively, this NFC antenna comprises the planar coil of rectangular multiturn; Also comprise an input/output interface unit, this input/output interface unit is electrically connected microcontroller.
2. a kind of NFC chip as claimed in claim 1, it is characterized in that: described NFC signal processing unit is ISO14443 RF signal processing unit.
3. a kind of NFC chip as claimed in claim 1, it is characterized in that: described input/output interface unit is the bluetooth communication unit.
4. a kind of NFC chip as claimed in claim 1, it is characterized in that: described input/output interface unit is the USB control unit.
5. a kind of NFC chip as claimed in claim 1, it is characterized in that: described input/output interface unit is the SD/MMC control unit.
CN 201220326851 2012-07-06 2012-07-06 Nfc chip CN202652217U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220326851 CN202652217U (en) 2012-07-06 2012-07-06 Nfc chip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220326851 CN202652217U (en) 2012-07-06 2012-07-06 Nfc chip

Publications (1)

Publication Number Publication Date
CN202652217U true CN202652217U (en) 2013-01-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220326851 CN202652217U (en) 2012-07-06 2012-07-06 Nfc chip

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CN (1) CN202652217U (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103701505A (en) * 2013-09-26 2014-04-02 上海斯图曼通信技术有限公司 NFC (Near Field Communication) device
CN103997698A (en) * 2014-06-11 2014-08-20 浙江祥晖数码科技有限公司 Bluetooth speaker with NFC function
CN104852753A (en) * 2014-02-18 2015-08-19 北京握奇智能科技有限公司 NFC switching device
WO2015180112A1 (en) * 2014-05-30 2015-12-03 北京智付融汇科技有限公司 Mobile radio frequency card and method for controlling data thereof
CN106106411A (en) * 2016-07-19 2016-11-16 柳州首光科技有限公司 The portable agricultural automatic medicine sprayer of a kind of high-efficient atomizing based on NFC technique
CN106135178A (en) * 2016-07-19 2016-11-23 柳州首光科技有限公司 The agricultural automatic medicine sprayer of a kind of movable type based on NFC technique
CN106172340A (en) * 2016-07-19 2016-12-07 柳州首光科技有限公司 A kind of agricultural automatic medicine spraying device of lift based on NFC technique
CN106172338A (en) * 2016-07-19 2016-12-07 柳州六品科技有限公司 A kind of agricultural automatic medicine sprayer of high-efficient atomizing based on NFC technique
CN106212422A (en) * 2016-07-19 2016-12-14 柳州首光科技有限公司 A kind of anti-skidding agricultural automatic medicine spraying device of lift based on NFC technique
CN106212423A (en) * 2016-07-19 2016-12-14 柳州六品科技有限公司 A kind of agricultural automatic medicine sprayer based on NFC technique
CN106250943A (en) * 2016-07-19 2016-12-21 柳州六品科技有限公司 A kind of NFC application module

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103701505A (en) * 2013-09-26 2014-04-02 上海斯图曼通信技术有限公司 NFC (Near Field Communication) device
CN104852753A (en) * 2014-02-18 2015-08-19 北京握奇智能科技有限公司 NFC switching device
WO2015180112A1 (en) * 2014-05-30 2015-12-03 北京智付融汇科技有限公司 Mobile radio frequency card and method for controlling data thereof
CN103997698A (en) * 2014-06-11 2014-08-20 浙江祥晖数码科技有限公司 Bluetooth speaker with NFC function
CN106106411A (en) * 2016-07-19 2016-11-16 柳州首光科技有限公司 The portable agricultural automatic medicine sprayer of a kind of high-efficient atomizing based on NFC technique
CN106135178A (en) * 2016-07-19 2016-11-23 柳州首光科技有限公司 The agricultural automatic medicine sprayer of a kind of movable type based on NFC technique
CN106172340A (en) * 2016-07-19 2016-12-07 柳州首光科技有限公司 A kind of agricultural automatic medicine spraying device of lift based on NFC technique
CN106172338A (en) * 2016-07-19 2016-12-07 柳州六品科技有限公司 A kind of agricultural automatic medicine sprayer of high-efficient atomizing based on NFC technique
CN106212422A (en) * 2016-07-19 2016-12-14 柳州首光科技有限公司 A kind of anti-skidding agricultural automatic medicine spraying device of lift based on NFC technique
CN106212423A (en) * 2016-07-19 2016-12-14 柳州六品科技有限公司 A kind of agricultural automatic medicine sprayer based on NFC technique
CN106250943A (en) * 2016-07-19 2016-12-21 柳州六品科技有限公司 A kind of NFC application module

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130102

Termination date: 20160706