WO2016204571A1 - Dual interface nfc tag device, and method and system for sharing payment information using dual interface nfc tag - Google Patents

Abstract

The present invention enables a smart terminal and an electronic device to share payment information, in a manner that if the smart terminal identifies an access address number recorded in an access address flag area of a dual interface NFC tag and then records the payment information in a data area of the corresponding access address number, the electronic device reads out the payment information from the access address number of the data area. A dual interface NFC tag device according to the present invention comprises: a port unit comprising a first port for recognizing tagging of the smart terminal, a second port for recognizing data records from the smart terminal, and a third port for transmitting/receiving the payment information to/from the electronic device; a first memory unit comprising an access address flag area having an access address number for recording the payment information and the number of record counts recorded therein, and a data area for recording the payment information; and a main control unit (MCU). The main control unit (MCU) is configured to: if, in the first port, a signal waveform is toggled-up and toggled-down, and toggle-up is detected again after a certain period of time, recognize the tagging of the smart terminal; if, in the second port, the toggled-up signal waveform is toggled- down, and then toggle-up is again detected, recognize a recording action in the data area; read out the payment information from the corresponding access address number and then transmit the payment information to the electronic device via the third port; and count the number of times that the payment information is recorded in the data area.

Description

Method and system for sharing payment information using dual interface NFC tag device and dual interface NFC tag

The present invention relates to a dual interface NFC tag device and a method for sharing payment information using a dual interface NFC tag that allows a smart terminal and an electronic device to share payment information through a memory.

Near field communication (NFC) is one of radio frequency identification (RFID) technologies, and is a contactless technology that generally uses a frequency band of 13.56 MHz.

NFC is attracting attention as a next-generation short-range communication technology because of its relatively high security and low cost because of its short communication distance. Because both data reading and writing functions can be used, readers were not required for RFID, and similar to conventional short-range communication technologies such as Bluetooth, but there is an advantage that no device-to-device setting is needed like Bluetooth. In addition, the existing short-range communication technology such as Bluetooth, but pairing between devices (pairing) was essential, NFC has the advantage that the pairing is not accompanied.

NFC technology has recently become popular with smartphones, and combined with smartphones, creating a momentum of mobile payments, providing a market for cost generation for mobile operators, and providing various services and conveniences for users.

1 is a view showing a payment system using a conventional NFC module.

In FIG. 1, the conventional payment system has a configuration including a smartphone 10, a payment terminal 20, an NFC module 21, a payment server 30, and a card company server 40.

That is, when the user's smartphone 10 approaches the NFC module 21 installed in the payment terminal (merchant POS) 20 of the merchant who purchased the product, the smartphone 10 makes payment information in a contactless P2P manner. To transmit to the payment terminal 20 through the NFC module 21.

The payment terminal 20 transmits transaction interworking authentication information to the payment server 30 based on the payment information received through the NFC module 21 from the smartphone 10 and requests transaction authentication and payment.

Accordingly, the payment server 30 requests credit approval from the card company server 40 to receive the credit approval result and to perform the payment, and terminate the transaction by transmitting the payment transaction information to the payment terminal 20 in the affiliated store. .

In the case of the conventional payment system that proceeds as described above, not only payment through the smart phone 10 but also payment by a card with a tag (Tag) is embedded, but various types of cards and communication methods Since it is necessary to accommodate, there is a problem that the system configuration is increased and the cost increases as the NFC module 21 includes all of the respective protocols.

In addition, there is a problem of some compatibility due to the manufacturer-specific characteristics of the transmitter in the NFC module 21, there is no problem when paying with a passive tag card, but pay with the active NFC module 20 City has a problem that communication is not good.

An object of the present invention for solving the above-mentioned problems, the smart terminal checks the access address address to share the payment information through the access address flag area provided in the memory of the dual-interface NFC tag and the payment information to the access address address; When recording, the dual interface NFC tag device and dual interface NFC tag allow electronic devices to read payment information from the access address of the dual interface NFC tag and send it to a payment server, thereby sharing the payment information between the smart terminal and the electronic device. The present invention provides a method of sharing payment information.

In addition, an object of the present invention for solving the above-described problems, assigning the access address address of the dual interface NFC tag to the smart terminal and the electronic device (payment terminal) in the payment server, the smart terminal is close tagging to the dual interface NFC tag During tagging, the payment information is recorded at the access address assigned by the payment server, and the electronic device reads the payment information from the access address of the dual interface NFC tag and transmits the payment information to the payment server. The present invention provides a dual interface NFC tag payment information sharing system and method for sharing.

The dual interface NFC tag device according to the present invention for achieving the above object, as a dual interface NFC tag device for sharing payment information between the smart terminal and the electronic device, for the RF (Radio Frequency) interface An antenna unit; A port including a first port for recognizing tagging of the smart terminal, a second port for recognizing a data record from the smart terminal, and a third port for transmitting and receiving the payment information with the electronic device part; A first memory unit including an access address flag area in which an access address address for writing the payment information and a write count number are recorded, and a data area for recording the payment information; ; And recognizing tagging of the smart terminal when the signal waveform is toggled up and toggled down at the first port and toggled up after a predetermined time elapses. When the signal waveform toggled up at the 2 port is toggled down and the toggle up is detected again, it is recognized as a recording operation of the data area, and the payment information is read from the corresponding access address and the electronic device is read through the third port. And a main control unit (MCU) for transmitting to the device and counting the number of times the payment information is written to the data area.

The first port may include an energy harvest field detection (EH_FD) port, and the second port may include a radio frequency write in progress (RF_WIP) port.

The main control unit (MCU) may further include a second memory unit for counting and temporarily recording the number of times that the payment information is written in the data area, and counting information about the number of times the payment information is recorded. And a third memory section for writing.

In addition, when the main control unit (MCU) recognizes that the payment information is recorded at the access address of the data area by the smart terminal, the main control unit (MCU) counts the number of times of writing of the data area of the first memory unit to determine the first number. 2 can be written to the memory.

In addition, when the main control unit MCU recognizes an off or a drop of power (Drop, PWR_FAIL), the main control unit MCU may calculate a count value for the number of times of writing of the second memory unit from the third memory unit or the first memory. It is possible to write to the negative access address flag area.

In addition, when the power is turned on again after the power is turned off, the main control unit MCU may calculate a count value for the number of times of writing the third memory unit or the first memory unit. A count of the number of writes can be performed by reading into the memory unit.

The main control unit MCU may access to write the payment information to an access address flag area of the first memory unit when the number of times of writing of the data area is equal to or greater than a specified number of write counts. The address address may be changed, and a count value for the number of times of writing of the second memory unit may be initialized.

The main control unit (MCU) may sequentially increase or decrease the access address in the access address flag area of the first memory unit or change the address address of an unused data area of the first memory unit. You can change the address.

In addition, the main control unit (MCU), when the tagging of the smart terminal, the signal waveform is toggled up in the first port, and interface with the smart terminal through the antenna unit, the smart terminal is the access address flag area If the signal waveform toggled up at the second port is toggled down and the toggle-up is detected again as the read address is read and the payment information is written to the access address of the data area, The payment information may be read from a corresponding access address and transmitted to the electronic device through the third port by recognizing a recording operation of a data area.

The first port and the second port may be coupled to each other, but may be coupled to use an output of the first port as a control signal for controlling enable and disable of the second port. Can be.

In addition, the combined signal of the first port and the second port may be used as an interrupt signal for the main control unit (MCU).

The main control unit (MCU) is further configured to control the smart terminal when the interrupt signal is toggled from low to high and a predetermined time for tagging validity has elapsed. Can be recognized by tagging.

In addition, when the interrupt signal is toggled down from high to low and a predetermined time for event termination determination has elapsed, the main control unit MCU may recognize that the smart terminal is de-tagging.

In addition, the main control unit (MCU) is the data of the smart terminal for the first memory when the interrupt signal is toggled down from high to low and toggled from low to high again within a predetermined time It can be recognized as a write.

The main control unit MCU may recognize that the interrupt signal is invalid when the interrupt signal is toggled down from high to low and toggles up from low to high again within a threshold time.

On the other hand, the payment information sharing method using a dual interface NFC tag according to the present invention for achieving the above object, the first port for recognizing the tagging (Tagging) of the smart terminal, and recognizes the data record from the smart terminal A port unit including a second port for transmitting and a third port for transmitting and receiving payment information with the electronic device; And a first memory unit including an access address flag area in which the access address address for writing the payment information and the number of write counts are recorded, and a data area for recording the payment information. A method of sharing payment information between the smart terminal and the electronic device using a dual interface NFC tag, the method comprising: (a) tagging the smart terminal in proximity to the dual interface NFC tag; (b) recognizing tagging of the smart terminal when the signal waveform is toggled up and toggled down at the first port and toggles up again after a predetermined time elapses; (c) if the signal waveform toggled up at the second port is toggled down and detected again as a toggle-up, recognizing it as a recording operation of the payment information for the data area of the smart terminal; (d) reading the payment information at a corresponding access address of the data area and transmitting the payment information to the electronic device through the third port; And (e) counting and recording the number of times the payment information is written to the data area.

Also, in the step (c), the smart terminal reads an access address address for recording the payment information from the access address flag area of the first memory unit, and records the payment information in a corresponding access address address of the data area. In the case of (Write), the signal waveform toggled up at the second port may be toggled down and again toggled up may be detected.

In addition, the first port of the step (b) and the second port of the step (c) are coupled to each other, a control signal for controlling the enable (Enable) and disable (Disable) of the second port And to use the output of the first port.

In addition, the combined signal of the first port and the second port may be used as an interrupt signal for the main control unit (MCU).

Also, the step (b) may be performed by tagging the smart terminal when the interrupt signal is toggled from low to high and a predetermined time for tagging validity has elapsed. I can recognize it.

In addition, in the step (b), when the interrupt signal is toggled down from high to low and a predetermined time for the event termination determination has elapsed, it may be recognized as detagging of the smart terminal.

Also, the step (c) may include writing data of the smart terminal to the first memory when the interrupt signal is toggled down from high to low and back up from low to high again within a predetermined time. Can be recognized as).

In addition, when the interrupt signal is toggled down from high to low and toggles up from low to high again within a threshold time, it may be recognized as an invalid operation.

In addition, in the step (e), the number of times the payment information is written in the data area is counted and temporarily recorded in the second memory unit, or the count information on the number of times of the payment information is recorded in the third memory. You can record in the Department.

In the step (e), if the payment information is recorded in the access address of the data area by the smart terminal in step (c), the number of times of writing the data area of the first memory unit is determined. The count may be temporarily written to the second memory unit.

Further, in the step (e), when the number of times of writing of the data area is equal to or greater than a specified number of write counts, an access address address for writing the payment information in the access address flag area of the first memory unit. May be changed and the count value for the number of times of writing of the second memory unit may be initialized.

In addition, in the step (e), the access address address may be sequentially increased or decreased in the access address flag area of the first memory unit, or the address address of the unused data area of the first memory unit may be changed to the access address address. You can change it.

Further, in the step (e), when recognizing the power OFF or drop (Prop, PWR_FAIL), the count value for the number of times of writing of the second memory unit is accessed by the third memory unit or the first memory unit. Write can be made to the address flag area.

In the step (e), if the smart terminal is operated in close proximity to the smart terminal, the count value of the number of times of writing the third memory unit or the first memory unit may be read into the second memory unit to count the number of times of writing. You can run

Dual interface NFC tag payment information sharing system according to the present invention for achieving the above object, Dual interface NFC tag for storing and sharing payment information in the memory; A payment server which allocates an address of an access address of a memory in which payment information is to be recorded and performs payment processing based on the payment information; Tagging in proximity to the dual interface NFC tag and receiving an access address from the payment server when recording data in the memory, and transmitting the payment information to the dual interface NFC tag so that the payment information is recorded in the assigned access address; And an electronic device that receives the access address from the payment server when the smart terminal records data in the memory, reads the payment information from the access address of the memory of the dual interface NFC tag, and transmits the payment information to the payment server.

Also, the payment server may randomly or sequentially allocate the memory address of the dual interface NFC tag according to a specific time.

In addition, the payment server may allocate the memory address of the dual interface NFC tag according to the time information of each system.

In addition, the electronic device, for the access address address, threshold time point at which the access address address changes as a difference in address address due to a time difference or time delay between the systems occurs, -n time to + n When the payment information is read from the access address for a time, the payment information may be read from the access address before and after the critical point, and valid payment information may be selected and transmitted to the payment server.

In addition, when the access address is changed in the payment server, the smart terminal and the electronic device may receive and update the changed access address from the payment server.

In addition, the dual interface NFC tag, the antenna unit for the RF (Radio Frequency) interface with the smart terminal; A port unit having a first port for recognizing tagging of the smart terminal, a second port for recognizing a data record from the smart terminal, and a third port for transmitting and receiving payment information with the electronic device; A first memory section having a data area for recording payment information; And when the signal waveform is toggled up at the first port, toggled down, and toggled up again after a predetermined time has elapsed, the tagging of the smart terminal is recognized and at the second port. When the toggled-up signal waveform is toggled down and detected again, it is recognized as a recording operation in the data area, and controls to read payment information from the corresponding access address and transmit it to the electronic device through the third port. It may include a unit (MCU).

Here, the first port may include an energy harvest field detection (EH_FD) port, and the second port may include a radio frequency write in progress (RF_WIP) port.

In addition, when tagging the smart terminal, the control unit MCU may toggle up the signal waveform at the first port, interface with the smart terminal through the antenna unit, and read an access address address assigned to the smart terminal, When the payment information is written to the access address of the address, the signal waveform toggled up from the second port is toggled down and if the toggle up is detected again, it is recognized as the recording operation of the data area. The payment information may be read and transmitted to the electronic device through the third port.

In addition, the dual interface NFC tag, the first port and the second port is coupled to each other, using the output of the first port as a control signal for controlling the enable (Enable) and disable (Disable) of the second port Can be combined.

In addition, the combined signal of the first port and the second port may be used as an interrupt signal for the control unit (MCU).

In addition, the control unit MCU may recognize the tagging of the smart terminal when the interrupt signal is toggled from low to high and a predetermined time for tagging validity has elapsed. can do.

In addition, the control unit MCU may recognize that the smart terminal is de-tagging when the interrupt signal is toggled down from high to low and a predetermined time for event termination determination has elapsed.

In addition, the control unit (MCU), when the interrupt signal is toggled down from high to low and back up from low to high again within a predetermined time, to the data write of the smart terminal to the first memory I can recognize it.

And, the control unit MCU may recognize as an invalid operation when the interrupt signal is toggled down from high to low and toggles up from low to high again within a threshold time.

On the other hand, the dual interface NFC tag payment information sharing method according to the present invention for achieving the above object, a first port for recognizing the tagging (Tagging) of the smart terminal, and recognizes the data write (Write) from the smart terminal Payment between the smart terminal and the electronic device using a dual interface NFC tag including a second port for transmitting, a third port for transmitting and receiving payment information with the electronic device, and a first memory unit having a data area for recording payment information. A dual interface NFC tag payment information sharing method for sharing information, comprising: (a) tagging a smart terminal in proximity to a dual interface NFC tag; (b) the smart terminal requesting the recording of the data area to the dual interface NFC tag and the payment server in association with tagging; (c) the payment server assigning an access address of the first memory unit to which payment information is to be recorded in the smart terminal and the electronic device; (d) recording, by the smart terminal, the payment information in a data area of an assigned access address; (e) delivering, by the dual interface NFC tag, the payment information recorded at the access address of the data area to the electronic device; And (f) characterized in that it comprises the step of transmitting the payment information received by the electronic device to the payment server.

In addition, in step (a), the dual interface NFC tag may be toggled up, toggled down, and toggled up again after a predetermined time. It can be recognized by tagging.

Also, in step (b), if the signal waveform toggled up at the second port is toggled down and detected as toggle-up again, the dual interface NFC tag may recognize it as a recording operation of payment information on the data area of the smart terminal. Can be.

In addition, in step (c), the payment server may assign an access address of the first memory unit of the dual interface NFC tag randomly or sequentially according to a specific time.

In addition, in step (c), the payment server may allocate an access address of the first memory unit of the dual interface NFC tag according to time information of each system.

In addition, in the step (e), during the threshold time point -n time to + n time when the electronic device changes its access address due to time difference or time delay with the smart terminal or payment server. In case of receiving the payment information of the access address from the dual interface NFC tag, the electronic device reads the payment information from the access address address before and after the critical point in the data area in step (f) and selects the valid payment information among them to settle the payment server. Can be sent to

Further, when the smart terminal writes the payment information to the access address of the allocated data area in step (d), the dual interface NFC tag toggles down the signal waveform toggled up at the second port. It can be detected by toggle-up again.

In addition, in step (b), the first port and the second port are interworked with each other in the dual interface NFC tag, and a control signal for controlling enable and disable of the second port may be used. Can be linked to use output.

In addition, the interworking signals of the first port and the second port may be used as an interrupt signal for the control unit (MCU).

In addition, when the interrupt signal is toggled from low to high and a predetermined time for tagging validity has elapsed, the dual interface NFC tag may be recognized as tagging of the smart terminal. have.

In addition, when the interrupt signal is toggled down from high to low and a predetermined time for event termination determination has elapsed, the dual interface NFC tag may be recognized as untagging of the smart terminal.

In addition, when the interrupt signal is toggled down from high to low and back up from low to high again within a predetermined time, the dual interface NFC tag may recognize the smart terminal's data write to the first memory. Can be.

In addition, when the interrupt signal is toggled down from high to low and back up from low to high again within a threshold time, the dual interface NFC tag can be recognized as invalid operation.

In step (c), the payment server sequentially increases or decreases the access address of the first memory unit in which payment information is to be recorded, or changes the address address of an unused data area of the first memory unit to the access address. Can be assigned to smart terminals and electronic devices.

According to the present invention, payment information may be shared between the smart terminal and the electronic device by referring to the access address flag area of the dual interface NFC tag.

In addition, the dual interface NFC tag may recognize the tagging of the smart terminal and the data writing operation of the memory through an interrupt. Accordingly, the dual interface NFC tag may recognize whether the smart terminal has tagged the tag, released the tag, valid recording of the smart terminal, invalid operation, or the like through an interrupt.

For this purpose, since the memory and the control unit (MCU) are provided in the dual interface NFC tag, a separate NFC module is not required, thereby increasing the system configuration and increasing the cost.

In addition, since the dual interface NFC tag operates in a passive manner, some compatibility problems due to the difference in the manufacturer's characteristics of the existing NFC module can be solved, and the active NFC module is replaced. You can also solve the problem of poor communication.

1 is a view showing a payment system using a conventional NFC module.

2 is a view schematically showing the configuration of a dual interface NFC tag device according to an embodiment of the present invention.

3 is a flowchart illustrating a method of sharing payment information using a dual interface NFC tag according to an embodiment of the present invention.

4 and 5 are circuit diagrams for explaining the combination of the first port and the second port according to an embodiment of the present invention.

6 is a diagram illustrating a processing procedure for explaining a method of operating a third memory unit according to an exemplary embodiment of the present invention.

7 is a schematic diagram showing the configuration of a dual interface NFC tag payment information sharing system according to an embodiment of the present invention.

8 is a flowchart illustrating an operation for explaining a dual interface NFC tag payment information sharing method according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "electrically connected" with another element in between. . In addition, when a part is said to "include" a certain component, which means that it may further include other components, except to exclude other components unless otherwise stated.

When a portion is referred to as being "above" another portion, it may be just above the other portion or may be accompanied by another portion in between. In contrast, when a part is mentioned as "directly above" another part, no other part is involved between them.

Terms such as first, second, and third are used to describe various parts, components, regions, layers, and / or sections, but are not limited to these. These terms are only used to distinguish one part, component, region, layer or section from another part, component, region, layer or section. Accordingly, the first portion, component, region, layer or section described below may be referred to as the second portion, component, region, layer or section without departing from the scope of the invention.

The terminology used herein is for reference only to specific embodiments and is not intended to limit the invention. As used herein, the singular forms “a,” “an,” and “the” include plural forms as well, unless the phrases clearly indicate the opposite. As used herein, the meaning of "comprising" embodies a particular characteristic, region, integer, step, operation, element and / or component, and the presence of other characteristics, region, integer, step, operation, element and / or component It does not exclude the addition.

Terms indicating relative space such as "below" and "above" may be used to more easily explain the relationship of one part to another part shown in the drawings. These terms are intended to include other meanings or operations of the device in use with the meanings intended in the figures. For example, turning the device in the figure upside down, some parts described as being "below" of the other parts are described as being "above" the other parts. Thus, the exemplary term "below" encompasses both up and down directions. The device can be rotated 90 degrees or at other angles, the terms representing relative space being interpreted accordingly.

Unless defined otherwise, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. Commonly defined terms used are additionally interpreted to have a meaning consistent with the related technical literature and the presently disclosed contents, and are not interpreted in an ideal or very formal sense unless defined.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

2 is a view schematically showing the configuration of a dual interface NFC tag device according to an embodiment of the present invention.

Referring to FIG. 2, the dual interface NFC tag device 200 according to an exemplary embodiment of the present invention may include an antenna unit 210, a first memory unit 220, a port unit 230, and a main control unit (MCU: Main). Control Unit 240).

The antenna unit 210 transmits and receives data in a non-contact manner by performing an RF (Radio Frequency) interface with the smart terminal. That is, the antenna 210 for the RF interface allows a signal according to a radio frequency in the air to be transmitted and received for data as if the conductors are connected. To this end, the antenna 210 supports wireless near field (eg, 10 cm) communication. In addition, the antenna 210 may be configured as a loop antenna, and the loop antenna may be implemented as a PCB, an FPCB, or a general conductor.

Here, a smart terminal may also be referred to as a subscriber unit, subscriber station, mobile station, mobile, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent, user device or user equipment (UE). Smart stages can be connected to cellular phones, cordless telephones, thin start protocol (SIP) telephones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless connectivity, computing devices or other wireless modems. It may be a processing device. However, these terms should not be limited to smart terminals. A smart terminal should be understood as any device including an NFC module that is an active device for wireless near field communication with a dual interface NFC tag. The smart terminal performs near field communication with the dual interface NFC tag through the antenna 210 of the dual interface NFC tag.

The first memory unit 222 may include an access address flag area 222 in which an access address address to which payment information is to be written and the number of write counts are recorded, and for recording the payment information. It includes a data area 224. Accordingly, since the first memory unit 222 may be implemented on an integrated circuit (IC), it may be referred to as a “dual interface NFC tag IC”. The first memory unit 220 having the data area 224 for data storage is generally a nonvolatile memory (NVM) and may be, for example, an EEPROM (Electrically Erasable Programmable Read-Only Memory). When implemented as an EEPROM, the first memory unit 220 erases internal data by applying an electrical signal, so a dedicated eraser for data deletion is not required. Can be done. Such an EEPROM may have a limit of about 1 million repeated writes. Therefore, when there is a limit on the number of times of recording, it is necessary to secure another storage area when the storage area of the address address is no longer available. It is.

The port unit 230 includes a first port for recognizing tagging of the smart terminal, a second port for recognizing a data record from the smart terminal, and a third port for transmitting and receiving payment information with the electronic device. do. That is, the first port for recognizing the tagging of the smart terminal for the dual interface NFC tag may include, for example, an energy harvest field detection (EH_FD) port. The second port for recognizing a record for the dual interface NFC tag from the smart terminal may include, for example, a Radio Frequency Write In Progress (RF_WIP) port.

In addition, the port unit 230 for wired communication may include other ports in addition to the above-described ports. That is, it may also include ports for receiving data from the electronic device. For example, in the case of I2C wired communication, the electronic device may record data in the first memory unit 220 through wired communication through a serial clock (SCL) port and / or a serial data (SDA) port.

The electronic device may be, for example, a home appliance such as a refrigerator, a rice cooker, a vacuum cleaner, an air conditioner, a host computer in a POS system, a POS printer in a POS system, a computer, an office printer, a wearable device, a digital door lock, or the like.

The main control unit 240 recognizes tagging of the smart terminal when the signal waveform is toggled up, toggled down at the first port, and toggled up is detected again after a predetermined time elapses. If the signal waveform toggled up from the second port is toggled down and the toggle up is detected again, it is recognized as a recording operation of the data area, and the payment information is read from the corresponding access address of the data area and the third port is read. It transmits to the electronic device through the electronic device, and counts the number of times the payment information is written to the data area.

The main control unit 240 also records a second memory unit 242 for temporarily recording and counting the number of times payment information is written in the data area, and recording count information on the number of times of payment information recording. The third memory unit 244 is included. In this case, the second memory unit 242 may be implemented with, for example, SRAM, and the third memory unit 244 may be implemented with, for example, a Flash memory.

When the main control unit 240 recognizes that the payment information is recorded at the access address of the data area by the smart terminal, the main control unit 240 counts the number of times of writing the data area 224 of the first memory unit 220. The second memory unit 242 may write.

In addition, when the main control unit 240 recognizes the power off or drop (Prop, PWR_FAIL), the main control unit 240 calculates a count value for the number of times the second memory unit 242 writes to the third memory unit 244 or The data may be written to the access address flag area 222 of the first memory unit 220.

In addition, when the main control unit 240 operates again in proximity to the smart terminal, the second memory unit 242 may calculate a count value for the number of times the third memory unit 244 or the first memory unit 220 is written. Can be read and counted.

The main control unit 240 also records payment information in the access address flag area 222 of the first memory unit 220 when the number of times of writing the data area is equal to or greater than the specified number of write counts. The number of access addresses to be changed may be changed, and the count value for the number of times of writing of the second memory unit 242 may be initialized.

In addition, the main control unit 240 sequentially increases or decreases the access address in the access address flag area 222 of the first memory unit 220, or changes the access address address, or does not use the first memory unit 220. The address address of the data area 224 may be changed to an access address.

In addition, the main control unit 240, the signal waveform is toggled up at the first port when tagging the smart terminal, and interfaces with the smart terminal through the antenna unit 210, the smart terminal is the access address flag area 222 As the readout address is read from and the payment information is written to the access address in the data area 224, the signal waveform toggled up at the second port is toggled down and the toggle up is detected again. Recognizing the recording operation of the area 224, payment information may be read from the corresponding access address and transmitted to the electronic device through the third port.

The first port and the second port may be coupled to each other, but may be coupled to use the output of the first port as a control signal for controlling enable and disable of the second port.

In addition, the combined signal of the first port and the second port may be used as an interrupt signal for the main control unit 240.

In addition, the main control unit 240 switches to tagging of the smart terminal when the interrupt signal is toggled from low to high and a predetermined time for tagging validity has elapsed. I can recognize it.

In addition, when the interrupt signal is toggled down from high to low and a predetermined time for the event termination determination has elapsed, the main control unit 240 may recognize that the smart terminal is de-tagging.

The main control unit 240 also records data of the smart terminal to the first memory 220 when the interrupt signal is toggled down from high to low and back up from low to high again within a predetermined time. Can be recognized as (write).

The main control unit 240 may recognize the invalid operation when the interrupt signal is toggled down from high to low and toggles up from low to high again within a threshold time.

3 is a flowchart illustrating a method of sharing payment information using a dual interface NFC tag according to an embodiment of the present invention.

First, the dual interface NFC tag device 200 according to the present invention, the first port and the second port is coupled to each other, as a control signal for controlling the enable (Enable) and disable (Disable) of the second port Can be combined to use the output of the first port. In this case, the combined signal of the first port and the second port may be used as an interrupt signal for the main control unit 240.

According to the present invention, the dual interface NFC tag device 200 may recognize the operation of the smart terminal and the type of the operation by generating an interrupt to the main control unit 240. For the interruption, the present invention uses a combination of a first port for recognizing the tagging of the smart terminal and a second port for recognizing a record in the data area 224 of the first memory unit 220 from the smart terminal. As described above, the first port may typically be an EH_FD port, and the second port may typically be an RF_WIP port.

Referring to FIG. 3, in the dual interface NFC tag device 200 according to the present invention, the smart terminal performs tagging in proximity to the dual interface NFC tag (S310).

In this case, when the smart terminal is tagged to the dual interface NFC tag device 200, the dual interface NFC tag IC 220 generates power by an electromagnetic field generated by the smart terminal. The generated power is output to EH_FD of the dual interface NFC tag IC in FIGS. 4 and 5. The output of EH_FD can be input to the VCC port of the dual interface NFC tag IC to be used as an operating power source, or can be used as a signal for recognizing the state that the smart terminal is tagged.

Therefore, when the signal waveform is toggled up, toggled down at the first port, and toggled up again after a predetermined time, the main control unit 240 switches to tagging of the smart terminal. Recognize (S320).

In this case, since the dual interface NFC tag device 200 is connected to the electronic device through wired communication, in some cases, the dual interface NFC tag device 200 may receive operating power from the electronic device through the wired line.

On the other hand, the main control unit 240 may recognize the tagging of the smart terminal using the interrupt signal through the combination of the first port and the second port. That is, for interrupt, the present invention uses a combination of a first port for recognizing the tagging of the smart terminal and a second port for recognizing a data record for the first memory unit 220 from the smart terminal.

Therefore, the main control unit 240 recognizes the tagging of the smart terminal when the interrupt signal is toggled from low to high and a predetermined time for the tagging validity elapses. can do.

In addition, when the interrupt signal is toggled down from high to low and a predetermined time for the event termination determination has elapsed, the main control unit 240 may recognize that the smart terminal is de-tagging.

Subsequently, the smart terminal reads the access address from the access address flag area 222 of the first memory unit 220 and writes payment information to the corresponding access address of the data area 224 (S330). .

That is, the smart terminal reads an access address address for recording payment information from the access address flag area 222 of the first memory unit 220, and writes payment information to the corresponding access address of the data area 224 (Write). In this case, the signal waveform toggled up at the second port is toggled down and then toggled up again.

In this case, when the signal waveform toggled up at the second port is toggled down and the toggle up is detected again, the main control unit 240 recognizes the operation of recording payment information on the data area of the smart terminal (S340). .

The operating characteristics of the second port for recognizing a record in the data area 224 of the first memory unit 220 from the smart terminal are as follows.

When the smart terminal performs a data writing operation on the first memory unit 220 while the dual interface NFC tag device 200 receives the operation power from the smart terminal, the signal waveform that was toggled up is It is toggled down, and after a certain time the signal waveform toggles up again. The second port may detect that the smart terminal has performed data recording on the first memory unit 220 by detecting that the toggle-up signal waveform is toggled down and toggled up again. The port unit 230 for wired communication including the aforementioned first port and the second port supports wired communication with the electronic device.

The main control unit 240 recognizes the tagging of the smart terminal when the signal waveform is toggled up, toggled down at the first port, and toggled up is detected again after a predetermined time has elapsed. If the signal waveform toggled up from the second port is toggled down and the toggle up is detected again, it is recognized as a recording operation of the data area, and the payment information is read from the corresponding access address and the electronic device is read through the third port. Control to send to. That is, when tagging the smart terminal 110, the main control unit 240 toggles up the signal waveform at the first port and interfaces with the smart terminal through the antenna unit 210 to access the flag region 222. Reads the access address, and writes the billing information to the access address of the data area 224. As a result, the signal waveform toggled up from the second port is toggled down and the toggle up is detected again. Recognizing it as a recording operation of the data area 224, the payment information is read from the corresponding access address of the data area 224 and controlled to be transmitted to the electronic device through the third port.

Meanwhile, the main control unit 240 may recognize a data write operation for the first memory unit 220 by an interrupt signal through the combination of the first port and the second port. For the interruption, the present invention uses a combination of a first port for recognizing the tagging of the smart terminal and a second port for recognizing a data record for the first memory unit 220 from the smart terminal.

Here, the combination of the first port and the second port will be described with reference to FIGS. 4 and 5. 4 and 5 are circuit diagrams for explaining the combination of the first port and the second port according to an embodiment of the present invention. In FIG. 4 and FIG. 5, the first port is an EH_FD port and the second port is an RF_WIP port.

When the smart terminal is tagged to the dual interface NFC tag device 200, the IC 220 of the dual interface NFC tag is generated by the electromagnetic field generated by the smart terminal. The generated power is output to EH_FD of the dual interface NFC tag IC in FIGS. 4 and 5. The output of EH_FD can be input to the VCC port of the dual interface NFC tag IC to be used as an operating power source, or can be used as a signal for recognizing the state that the smart terminal is tagged.

The RF_WIP signal toggles down from high to low when a data recording occurs while tagging from a smart terminal to a dual interface NFC tag IC, and then toggles up from low to high again after a certain period of time. This signal indicates that it has occurred.

This RF_WIP port is basically an open-drain port. Open-drain ports, by their nature, cannot generate output unless there is a pull-up resistor outside the port. Here, RF_WIP is a signal that can never be generated when EH_FD is low because a write operation is performed under the assumption that the smart terminal is tagged.

Thus, in FIG. 4 and FIG. 5, the EH_FD port and the RF_WIP port are combined so that the enable of the pull-up resistor of the RF_WIP can be controlled according to the EH_FD signal. That is, the output signal of the RF_WIP output and the GEN INT terminal of the dual interface NFC tag IC in FIGS. 4 and 5 is configured as EH_FD + RF_WIP, which is a combination of EH_FD and RF_WIP.

The resistor R11 of the output terminal of GEN INT is a collector resistor of transistor Q2 and a pullup resistor of RF_WIP. If EH_FH is low in GEN INT, R11 does not act as a pull-up resistor because output-side transistor Q2 is conductive and EH_FD + RF_WIP node is connected to GND. If EH_FD is high, output transistor Q2 is not conducting and R11 can operate as a pull-up resistor, and EH_FD + RF-WIP goes high to recognize that the smart terminal is tagged. In this state, when data recording occurs from the smart terminal, the EH_FD + RF_WIP signal is toggled low for a predetermined time and then high again, indicating that a recording operation has occurred.

Therefore, the main control unit 240 switches to tagging of the smart terminal when the interrupt signal is toggled from low to high and a predetermined time for tagging validity has elapsed. To recognize.

In addition, when the interrupt signal is toggled down from high to low and a predetermined time for the event termination determination has elapsed, the main control unit 240 recognizes the tagging of the smart terminal.

In addition, the main control unit 240, when the interrupt signal is toggled down from high to low and back up from low to high again within a predetermined time, the data of the smart terminal for the first memory unit 220 It can be recognized as a write.

In addition, the main control unit 240 may recognize the invalid operation when the interrupt signal is toggled down from high to low and toggles up from low to high again within a threshold time.

Therefore, the main control unit 240 reads the payment information from the corresponding access address of the data area and transmits the payment information to the electronic device through the third port (S350).

Subsequently, the main control unit 240 counts and records the number of times payment information is written in the data area (S360).

That is, the main control unit 240 counts the number of times that the payment information is written in the data area and temporarily records the number of payment information in the second memory unit 242 or records the count information regarding the number of times the payment information is recorded. It can record in the memory unit 244.

In addition, when the main control unit 240 recognizes that the payment information is recorded at the access address of the data area by the smart terminal, the main control unit 240 counts the number of times of writing the data area 224 of the first memory unit 220. Can be temporarily written to the second memory unit 242.

The main control unit 240 also records payment information in the access address flag area 222 of the first memory unit 220 when the number of times of writing the data area is equal to or greater than the specified number of write counts. The number of access addresses to be changed may be changed, and the count value for the number of times of writing of the second memory unit 242 may be initialized.

In addition, the main control unit 240 sequentially increases or decreases the access address in the access address flag area 222 of the first memory unit 220, or changes the access address address, or does not use the first memory unit 220. The address address of the data area 224 may be changed to an access address.

In addition, when the main control unit 240 recognizes the power OFF or drop (Prop, PWR_FAIL), the main control unit 240 calculates a count value for the number of times the second memory unit 242 writes to the third memory unit 244 or The data may be written to the access address flag area 222 of the first memory unit 220.

When the main control unit 240 operates again in proximity to the smart terminal, the second memory unit 242 may calculate a count value for the number of times the third memory unit 244 or the first memory unit 220 is written. Can be read again and the count for the number of times recorded can be redone.

Meanwhile, an operating method of the third memory unit 244 implemented as a flash memory in the embodiment of the present invention will be described with reference to FIG. 6.

6 is a diagram illustrating a processing procedure for explaining a method of operating a third memory unit according to an exemplary embodiment of the present invention.

The third memory unit 244 according to the present invention is a flash memory embedded in or external to the main control unit 240 and has a limited write life cycle (Endurance 100,000 times). Since the data should be written to the flash memory at the time when the system power is turned off, it is necessary to secure a time for writing data when the power is turned off.

In order to increase the usage period of the third memory unit 244, not only one area of the flash memory needs to be used but also various areas need to be distributed. Therefore, in order to write data to the flash memory, the area must be erased in a blank state. Erase in flash memory is composed of pages. If the Erase operation and the Write operation are sequentially performed during power off, it may be difficult to secure time for data writing during power off.

Therefore, as shown in FIG. 6, the flash memory allocates one or more write counts (WR_count), and the data to be stored are composed of WR_count data and CRC. In this case, a data validity determination method other than the CRC may be used.

For example, if one page is 100 bytes and the storage data is 10 bytes, 10 data storage spaces can be secured in one page.

When the system is booted up, check the existence and validity of data by 10 bytes in order from the start address of the page area allocated for WR_count. Data validation checks the validity by processing WR_counter data and CRC.

In FIG. 6, if there is valid data when checking data in area 1, data in area 2 is checked. If there is no data in the area 2, the valid data of the area 1 is loaded into the SRAM to proceed with the WR count, and the start address of the area 2 is stored in another memory and stored.The WR_count data of the SRAM is stored in the CRC when the system power is turned off. It is stored in area 2 together with. At this time, if the data of the area at the time of data check is a CRC error, the data of the previous area is loaded into the SRAM and the data is stored at the address start address of the next area when the power is turned off.

If data is written (WR) to area 10 in the above manner, Page erase is performed after loading data of area 10 into SRAM at system boot. If the allocated page is one page, the start address of area 1 is the next write address, and if multiple pages are allocated, the start address of area 11 is the next write address.

The above-mentioned problems can be solved by moving the flash area in the same manner as described above and storing data and performing Erase upon power on.

As described above, according to the present invention, when the smart terminal checks the access address address to share the payment information through the access address flag area provided in the memory of the dual interface NFC tag, and records the payment information in the corresponding access address address, the electronic device Reads the payment information from the access address of the dual interface NFC tag and transmits the payment information to the payment server, thereby allowing the payment information to be shared between the smart terminal and the electronic device. The sharing method can be realized.

7 is a schematic diagram showing the configuration of a dual interface NFC tag payment information sharing system according to an embodiment of the present invention.

Referring to FIG. 7, the dual interface NFC tag payment information sharing system 700 according to the present invention includes a smart terminal 710, a dual interface NFC tag 720, an electronic device 730, and a payment server 740. do.

The smart terminal 710 tags in close proximity to the dual interface NFC tag 720, receives an access address from the payment server 740 when recording data in the memory, and the payment information is assigned to the assigned access address. The payment information is transmitted to the dual interface NFC tag 720 to be recorded.

Here, the smart terminal 710 may also be referred to as a subscriber unit, subscriber station, mobile station, mobile, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent, user device or user equipment (UE). . The smart terminal 710 can be a cellular phone, a cordless phone, a thin line start protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with a wireless connection, a computing device, or a wireless modem. It may be another processing device connected to it. However, the smart terminal 710 should not be limited to these terms. The smart terminal 710 should be understood as any device including an NFC module that is an active device for wireless short range communication with the dual interface NFC tag 720. The smart terminal 710 performs near field communication with the dual interface NFC tag 720 through the antenna 210 of the dual interface NFC tag 720.

The dual interface NFC tag 720 stores the payment information received from the smart terminal 710 in the first memory unit 220 to share the smart terminal 710 and the electronic device 730 for reading.

In this case, the dual interface NFC tag 720 performs short-range wireless communication with the smart terminal 710 and performs wired communication with the electronic device 730. For example, wired communication includes serial communication, USB communication, I2C communication, SPI communication, and the like.

The electronic device 730 receives an access address address from the payment server 740 when the smart terminal 710 records data in the first memory unit 220, and the first memory unit (eg, the dual interface NFC tag 720). The payment information is read from the access address of 220 and transmitted to the payment server 740.

In addition, the electronic device 730 has a threshold time point at which the access address is changed as a difference in address address due to a time difference or time delay between the systems occurs. When reading the payment information from the access address for + to n times, the payment information is read from the access address before and after the threshold, and valid payment information is selected from the access address and transmitted to the payment server 740. Given.

The electronic device 730 may be, for example, a home appliance such as a refrigerator, a rice cooker, a vacuum cleaner, an air conditioner, a host computer in a POS system, a POS printer in a POS system, a computer, an office printer, a wearable device, a digital door lock, or the like.

The payment server 740 assigns an access address address of the first memory unit 220 in which payment information is to be recorded to the dual interface NFC tag 720, and performs payment processing based on the payment information.

In addition, the payment server 740 may allocate the memory address of the dual interface NFC tag 720 randomly or sequentially according to a specific time.

In addition, the payment server 740 may allocate an access address of the dual interface NFC tag 720 according to time information of each system.

When the access address is changed in the payment server 740, the smart terminal 710 and the electronic device 730 receive and update the changed access address from the payment server 740.

8 is a flowchart illustrating an operation for explaining a dual interface NFC tag payment information sharing method according to an embodiment of the present invention.

Referring to FIG. 8, in the dual interface NFC tag payment information sharing system according to the present invention, the smart terminal performs tagging in proximity to the dual interface NFC tag (S810).

Here, the dual interface NFC tag 720 is a smart terminal 710 when the signal waveform in the first port is toggled up (Toggle-up), toggle-down (Toggle down), and toggles up again after a certain time elapses. Recognize it with tagging.

Subsequently, the smart terminal 710 requests recording of the data area from the dual interface NFC tag 720 and the payment server 740 in association with tagging (S820).

Accordingly, the payment server 740 allocates an access address address of the first memory unit in which payment information is to be recorded to the smart terminal 710 and the electronic device 730 (S830).

In this case, the payment server 740 may allocate the access address of the first memory unit 220 of the dual interface NFC tag 720 randomly or sequentially according to a specific time.

In addition, the payment server 740 may allocate an access address of the first memory unit 220 of the dual interface NFC tag 720 according to time information of each system.

In this case, since the write life cycle (Endurance 1 million) of the first memory unit 220 is limited, it may be a problem in the usage period when many payments are made. Therefore, instead of recording and reading data at one address in the first memory unit 220, the address addresses of all areas may be used alternately, and according to the present invention, an access address address capable of recording payment information may be fixed. If it is used more than once, it is assigned to another access address.

In addition, the payment server 740 sequentially increases or decreases the access address of the first memory unit 220 in which payment information is to be recorded, or changes the address address of an unused data area of the first memory unit 220. May be changed to an access address and assigned to the smart terminal 710 and the electronic device 730.

Subsequently, the smart terminal 710 records payment information in a data area of an access address address allocated to the first memory unit 220 of the dual interface NFC tag 720 (S840).

Here, when the smart terminal 710 writes the payment information to the access address of the allocated data area, the dual interface NFC tag 720 toggles the signal waveform toggled up at the second port. If it is detected as a toggle-up again, the smart terminal 710 recognizes the payment operation for writing the data area.

Subsequently, when the dual interface NFC tag 720 recognizes the recording operation of the payment information on the data area of the smart terminal 710, the dual interface NFC tag 720 transmits the payment information recorded at the access address of the data area to the electronic device 730 ( S850).

Subsequently, the electronic device 730 transmits the received payment information to the payment server 740 (S860).

Here, the electronic device 730 is a threshold time point -N time to + N time that the access address is changed by a time difference or a time delay with the smart terminal 710 or the payment server 740. In the case of receiving the payment information of the access address from the dual interface NFC tag 720, the payment server reads the payment information from the access address address before and after the threshold of the data area and selects valid payment information from the payment server 740. Will be sent to.

Meanwhile, in the dual interface NFC tag 720 according to the embodiment of the present invention, the first port and the second port provided in the port unit 230 are coupled to each other in FIG. 2, but the enable of the second port is enabled. And an output of the first port as a control signal for controlling the disable, and a combined signal of the first port and the second port may be used as an interrupt signal for the control unit 240.

According to the present invention, the dual interface NFC tag 720 may recognize the operation of the smart terminal 710 and the type of the operation by generating an interrupt to the control unit 240.

For the interruption, the present invention uses a combination of a first port for recognizing the tagging of the smart terminal 710 and a second port for recognizing a record for the dual interface NFC tag 720 from the smart terminal 710.

As described above, the first port may typically be an EH_FD port, and the second port may typically be an RF_WIP port.

In one or more illustrative embodiments, the described functions may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, these functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. Storage media can be any available media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media may deliver or transmit desired program code in the form of RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage device, or instruction or data structure. It can include any other medium that can be used for storage and accessible by a computer. Also, any connection is properly termed a computer readable medium. For example, if the software is transmitted from a website, server or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio and microwave, Fiber technologies, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of the medium. Discs as used herein (disks and discs) include compact discs (CDs), laser discs, optical discs, digital general purpose discs (DVDs), floppy discs and Blu-ray discs, which usually contain data In contrast, the discs optically reproduce data by means of a laser. Combinations of the above should also be included within the scope of computer-readable media.

When embodiments are implemented as program code or code segments, the code segment may be a procedure, function, subprogram, program, routine, subroutine, module, software package, class, or instruction, data structure, or program statement. It should be appreciated that they can represent any combination of these. Code segments may be coupled to other code segments or hardware circuitry by passing and / or receiving information, data, arguments, parameters or memory content. Information, arguments, parameters, data, and the like may be delivered, sent or transmitted using any suitable means, including memory sharing, message delivery, token delivery, network transmission, and the like. In addition, in some aspects the steps and / or operations of the method or algorithm may be one or more of codes and / or instructions on a machine-readable medium and / or computer-readable medium that may be incorporated into a computer program product. It can reside as any combination or set of.

In an implementation in software, the techniques described herein may be implemented in modules (eg, procedures, functions, etc.) that perform the functions described herein. Software codes may be stored in memory units and executed by processors. The memory unit may be implemented within the processor or external to the processor, in which case the memory unit may be communicatively coupled to the processor by various means as is known in the art.

In a hardware implementation, the processing units may include one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, It may be implemented in a controller, microcontroller, microprocessor, other electronic units designed to perform the functions described herein, or a combination thereof.

What has been described above includes examples of one or more embodiments. Of course, not all possible combinations of components or methods may be described for the purpose of describing the above-described embodiments, but those skilled in the art may recognize that many further combinations and substitutions of the various embodiments are possible. Accordingly, the described embodiments are intended to embrace all such alterations, modifications and variations that fall within the spirit and scope of the appended claims. Moreover, for the scope in which the term "comprises" is used in the description or claims, these terms are similar to "consisting of" as interpreted when the term "consisting of" is used as a transitional word in the claims. It is included in the formula.

As used herein, the term “infer” or “infer” generally refers to the process of determining or inferring about the state of the system, environment, and / or user from a set of observations captured by events and / or data. Say. Inference can be used to identify a specific situation or action, or can generate a probability distribution over states, for example. Inference can be probabilistic, i.e., the calculation of the probability distribution for those states based on consideration of data and events. Inference can also refer to techniques used to construct higher level events from a set of events and / or data. This reasoning can be followed by new events or actions from a set of observed events and / or stored event data, whether the events are closely correlated in time, and whether the events and data come from one or several events and data sources. Let be estimated.

Moreover, as used in this application, terms such as "component", "module", "system", and the like, include, but are not limited to, hardware, firmware, combinations of hardware and software, software, or software-related software such as running software. It includes an entity. For example, a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable thread of execution, a program, and / or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components may reside within a process and / or thread of execution and a component may be localized on one computer and / or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. Components follow a signal with one or more data packets (e.g., data from a local system, other components of a distributed system, and / or a signal that interacts with other systems across a network such as the Internet by way of a signal). Etc. may be communicated by local and / or remote processes.

As those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features, the embodiments described above should be understood as illustrative and not restrictive in all aspects. Should be. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

10: smartphone 20: payment terminal

21: NFC module 30: payment server

40: card company server 200: dual interface NFC tag device

210: antenna unit 220: first memory unit

230: port portion 240: main control unit

Claims (56)

1. A dual interface NFC tag device for sharing payment information between a smart terminal and an electronic device,

   An antenna unit for an RF (Radio Frequency) interface with the smart terminal;

   A port including a first port for recognizing tagging of the smart terminal, a second port for recognizing a data record from the smart terminal, and a third port for transmitting and receiving the payment information with the electronic device part;

   A first memory unit including an access address flag area in which an access address address for writing the payment information and a write count number are recorded, and a data area for recording the payment information; ; And

   Recognizing tagging of the smart terminal when the signal waveform is toggled up and toggled down at the first port and toggled up again after a predetermined time has elapsed. When the signal waveform toggled up at the port is toggled down and detected again as a toggle-up, the signal is recognized as a recording operation of the data area, and the payment information is read from the corresponding access address and the electronic device is read through the third port. A main control unit (MCU) which transmits to the control unit and counts the number of times the payment information is written to the data area;

   Dual interface NFC tag device comprising a.
2. The method of claim 1,

   The first port includes an Energy Harvest Field Detection (EH_FD) port, and the second port includes a Radio Frequency Write In Progress (RF_WIP) port.
3. The method of claim 1,

   The main control unit (MCU) may include a second memory unit for counting and temporarily recording the number of times the payment information is written in the data area, and recording count information regarding the number of times the payment information is recorded. Dual interface NFC tag device comprising a third memory for.
4. The method of claim 3, wherein

   When the main control unit (MCU) recognizes that the payment information is recorded at the access address of the data area by the smart terminal, the main control unit (MCU) counts the number of times of writing of the data area of the first memory unit to the second memory. Dual interface NFC tag device characterized in that recorded in the unit.
5. The method of claim 4, wherein

   When the main control unit (MCU) recognizes the power off or drop (Drop, PWR_FAIL), the main control unit MCU accesses the count value for the number of times of writing of the second memory unit to access the third memory unit or the first memory unit. The dual interface NFC tag device, characterized in that the write (Write) in the address flag area.
6. The method of claim 5,

   The main control unit (MCU), when the power is turned on again after the power off (Off), the count value for the number of times of writing the third memory unit or the first memory unit to the second memory unit The dual interface NFC tag device, characterized in that for performing the count for the number of reading and recording.
7. The method of claim 4, wherein

   The main control unit (MCU), when the number of times of writing of the data area is equal to or greater than a specified number of write counts, an access address address for writing the payment information in an access address flag area of the first memory unit. The dual interface NFC tag device, characterized in that for changing, and initializing the count value for the number of times of writing of the second memory unit.
8. The method of claim 7, wherein

   The main control unit (MCU) may sequentially increase or decrease an access address in an access address flag area of the first memory unit, or change an address address of an unused data area of the first memory unit as an access address. Dual interface NFC tag device, characterized in that for changing.
9. The method of claim 1,

   The main control unit (MCU), when the tagging of the smart terminal, the signal waveform toggles up at the first port, and interfaces with the smart terminal through the antenna unit, the smart terminal is accessed in the access address flag area If the signal waveform toggled up at the second port is toggled down and the toggle up is detected again as the address is read and the payment information is written to the access address of the data area, the data area is detected. Recognizing a recording operation of the dual interface NFC tag device, characterized in that for reading the payment information from the access address and transmits to the electronic device through the third port.
10. The method of claim 1,

    The first port and the second port are coupled to each other, but coupled to use the output of the first port as a control signal for controlling the enable and disable of the second port. Interface NFC tag device.
11. The method of claim 10,

    Dual interface NFC tag device, characterized in that the combined signal of the first port and the second port is used as an interrupt signal for the main control unit (MCU).
12. The method of claim 11,

    The main control unit MCU may tag the smart terminal when the interrupt signal is toggled from low to high and a predetermined time for tagging validity has elapsed. Dual interface NFC tag device, characterized in that recognized as.
13. The method of claim 11,

    The main control unit (MCU), when the interrupt signal is toggled down from high to low, when a predetermined time for the event termination determination elapses, the dual interface NFC characterized in that it recognizes the tagging of the smart terminal Tag device.
14. The method of claim 11,

    The main control unit (MCU) is configured to record data of the smart terminal to the first memory when the interrupt signal is toggled down from high to low and back up from low to high again within a predetermined time. Dual interface NFC tag device characterized in that the recognition.
15. The method of claim 11,

    The main control unit (MCU), when the interrupt signal is toggled down from high to low and back up from low to high again within a threshold time, the dual interface NFC tag device, characterized in that the invalid operation .
16. A port unit including a first port for recognizing tagging of a smart terminal, a second port for recognizing a data record from the smart terminal, and a third port for transmitting and receiving payment information with an electronic device; And a first memory unit including an access address flag area in which the access address address for writing the payment information and the number of write counts are recorded, and a data area for recording the payment information. As a method of sharing payment information between the smart terminal and the electronic device using a dual interface NFC tag,

    (a) tagging the smart terminal in proximity to the dual interface NFC tag;

    (b) recognizing tagging of the smart terminal when the signal waveform is toggled up and toggled down at the first port and toggles up again after a predetermined time elapses;

    (c) if the signal waveform toggled up at the second port is toggled down and detected again as a toggle-up, recognizing it as a recording operation of the payment information for the data area of the smart terminal;

    (d) reading the payment information at a corresponding access address of the data area and transmitting the payment information to the electronic device through the third port; And

    (e) counting and recording the number of times the payment information is written to the data area;

    Billing information sharing method using a dual interface NFC tag comprising a.
17. The method of claim 16,

    In the step (c), the smart terminal reads an access address address for recording the payment information from the access address flag area of the first memory unit, and writes the payment information to the corresponding access address of the data area. ), A method of sharing payment information using a dual interface NFC tag, wherein the signal waveform toggled up at the second port is toggled down and detected again.
18. The method of claim 16,

    The first port of the step (b) and the second port of the step (c) are coupled to each other, the control signal for controlling the enable (Enable) and disable (Disable) of the second port Billing information sharing method using a dual interface NFC tag, characterized in that coupled to use the output of the first port.
19. The method of claim 16,

    The combined signal of the first port and the second port is used as an interrupt signal for the main control unit (MCU) of the dual interface NFC tag payment information sharing method using a dual interface NFC tag.
20. The method of claim 19,

    In the step (b), when the interrupt signal is toggled from low to high and a predetermined time for tagging validity has elapsed, it is recognized as tagging of the smart terminal. Billing information sharing method using a dual interface NFC tag, characterized in that.
21. The method of claim 19,

    In the step (b), when the interrupt signal is toggled down from high to low and a predetermined time for event termination determination has elapsed, the smart terminal recognizes that the tag is released from the smart terminal. How to share your payment information.
22. The method of claim 19,

    In step (c), when the interrupt signal is toggled down from high to low and toggles up from low to high again within a predetermined time, the interrupt signal may be written to the data write of the smart terminal to the first memory. Billing information sharing method using a dual interface NFC tag, characterized in that the recognition.
23. The method of claim 19,

    When the interrupt signal is toggled down from high to low and back up from low to high within a threshold time, the interrupt signal is recognized as invalid operation.
24. The method of claim 16,

    In the step (e), the number of times the payment information is written in the data area is counted and temporarily recorded in the second memory unit, or the count information on the number of times of the payment information is recorded in the third memory unit. Billing information sharing method using a dual interface NFC tag, characterized in that recording.
25. The method of claim 24,

    In step (e), if the payment information is recorded in the access address of the data area by the smart terminal in step (c), the number of times of writing the data area of the first memory unit is counted. Billing information sharing method using a dual interface NFC tag, characterized in that the temporary recording in the second memory unit.
26. The method of claim 24,

    In the step (e), when the number of times of writing of the data area is equal to or greater than a specified number of write counts, an access address address for writing the payment information in the access address flag area of the first memory unit is changed. The payment information sharing method using the dual interface NFC tag, characterized in that for initializing the count value for the number of times of recording of the second memory unit.
27. The method of claim 26,

    In step (e), an access address address is sequentially increased or decreased in an access address flag area of the first memory unit, or an address address of an unused data area of the first memory unit is changed to an access address address. Billing information sharing method using a dual interface NFC tag, characterized in that.
28. The method of claim 24,

    In step (e), upon recognizing the power off or drop (Prop, PWR_FAIL), a count value for the number of times of writing of the second memory unit is set to the access address flag of the third memory unit or the first memory unit. Billing information sharing method using a dual interface NFC tag characterized in that the write (Write) to the area.
29. The method of claim 28,

    In the step (e), if the smart terminal is operated again in proximity to the smart terminal, the count value of the number of times of writing the third memory unit or the first memory unit is read into the second memory unit to execute a count of the number of times of writing. Billing information sharing method using a dual interface NFC tag, characterized in that.
30. A dual interface NFC tag that stores and stores payment information in a memory;

    A payment server which allocates an address of an access address of the memory in which the payment information is to be recorded and performs payment processing based on the payment information;

    Tagging close to the dual interface NFC tag and receiving the access address from the payment server when recording the data in the memory, the dual interface NFC tag so that the payment information is recorded in the assigned access address. Smart terminal to transmit to; And

    An electronic device configured to receive the access address from the payment server when the smart terminal records data in the memory, and read the payment information from the access address of the memory of the dual interface NFC tag and transmit the read address to the payment server;

    Including,

    The dual interface NFC tag,

    An antenna unit for an RF (Radio Frequency) interface with the smart terminal;

    A port having a first port for recognizing tagging of the smart terminal, a second port for recognizing a data record from the smart terminal, and a third port for transmitting and receiving the payment information with the electronic device part;

    A first memory unit having a data area for recording the payment information; And

    Recognizing tagging of the smart terminal when the signal waveform is toggled up and toggled down at the first port and toggled up again after a predetermined time has elapsed. When the signal waveform toggled up at the port is toggled down and detected again as a toggle-up, the signal is recognized as a recording operation of the data area, and the payment information is read from the corresponding access address and the electronic device is read through the third port. A control unit (MCU) for controlling transmission to

    Dual interface NFC tag payment information sharing system comprising a.
31. The method of claim 30,

    The payment server, the dual interface NFC tag payment information sharing system, characterized in that for randomly or sequentially assigning the memory address of the dual interface NFC tag according to a specific time.
32. The method of claim 30,

    The payment server is a dual interface NFC tag payment information sharing system, characterized in that for allocating the memory address of the dual interface NFC tag according to the time information of each system.
33. 33. The method of claim 32,

    The electronic device has a threshold time point at which the access address is changed as a difference between address addresses due to a time difference or a time delay between the systems occurs with respect to the access address. When the payment information is read from the access address for n time, the payment information is read from the access address before and after the critical point, and valid payment information is selected and transmitted to the payment server. Dual interface NFC tag payment information sharing system.
34. The method of claim 30,

    The smart terminal and the electronic device, when the access address is changed in the payment server, dual interface NFC tag payment information sharing system, characterized in that for receiving (Update) the updated access address from the payment server (Update).
35. The method of claim 30,

    The first port includes an Energy Harvest Field Detection (EH_FD) port, and the second port includes a Radio Frequency Write In Progress (RF_WIP) port.
36. The method of claim 30,

    The control unit (MCU), when tagging the smart terminal, the signal waveform is toggled up at the first port, interface with the smart terminal through the antenna unit, read the access address address assigned to the smart terminal And writing the payment information to the access address of the data area. When the signal waveform toggled up at the second port is toggled down and the toggle-up is detected again, recording operation of the data area is performed. And recognizing and reading the payment information from the corresponding access address and transmitting the payment information to the electronic device through the third port.
37. The method of claim 30,

    The dual interface NFC tag, the first port and the second port is coupled to each other, the output of the first port as a control signal for controlling the enable (Enable) and disable (Disable) of the second port Dual interface NFC tag payment information sharing system, characterized in that coupled to use.
38. The method of claim 37,

    Dual interface NFC tag payment information sharing system, characterized in that the combined signal of the first port and the second port is used as an interrupt signal to the control unit (MCU).
39. The method of claim 38,

    The control unit MCU may be configured to tag the smart terminal when the interrupt signal is toggled from low to high and a predetermined time for tagging validity has elapsed. Dual interface NFC tag payment information sharing system, characterized in that the recognition.
40. The method of claim 38,

    The control unit (MCU), when the interrupt signal is toggled down from high to low, when the predetermined time for the event termination determination elapses, the dual interface NFC tag, characterized in that the recognition of the tagging of the smart terminal Billing Information Sharing System.
41. The method of claim 38,

    The control unit MCU writes data of the smart terminal to the first memory when the interrupt signal is toggled down from high to low and back up from low to high again within a predetermined time. Dual interface NFC tag payment information sharing system, characterized in that the recognition.
42. The method of claim 38,

    The control unit (MCU), when the interrupt signal is toggled down from high to low and back up from low to high again within a threshold time, the dual interface NFC tag payment information, characterized in that the invalid operation Shared system.
43. An antenna unit for an RF (Radio Frequency) interface with a smart terminal; A port unit having a first port for recognizing tagging of a smart terminal, a second port for recognizing a data write from the smart terminal, and a third port for transmitting and receiving payment information with an electronic device. ; A first memory unit having a data area for recording the payment information; And a dual interface NFC tag payment information sharing method for sharing payment information between the smart terminal and the electronic device using a dual interface NFC tag including a control unit (MCU),

    (a) tagging the smart terminal in proximity to the dual interface NFC tag;

    (b) the smart terminal requesting recording of the data area to the dual interface NFC tag and the payment server in association with tagging;

    (c) the payment server assigning an access address of the first memory unit in which the payment information is to be recorded to the smart terminal and the electronic device;

    (d) recording, by the smart terminal, the payment information in a data area of the assigned access address;

    (e) transmitting, by the dual interface NFC tag, the payment information recorded at an access address of the data area to the electronic device; And

    (f) the electronic device transmitting the received payment information to the payment server;

    Including,

    The control unit recognizes tagging of the smart terminal when the signal waveform is toggled up and toggled down at the first port and toggled up again after a predetermined time has elapsed. When the signal waveform toggled up at the second port is toggled down and detected again as a toggle-up, the signal is recognized as a recording operation of the data area, and the payment information is read from the corresponding access address to read the third port. Characterized in that the control to transmit to the electronic device through,

     How to share payment information using dual interface NFC tag.
44. The method of claim 43,

    In the step (a), when the signal waveform is toggled up and toggled down at the first port, the dual interface NFC tag is toggled up again after a predetermined time elapses. The dual interface NFC tag payment information sharing method, characterized in that recognized by the tagging of the terminal.
45. The method of claim 43,

    In the step (b), if the signal waveform toggled up at the second port is toggled down and detected as toggle-up again, recording of the payment information for the data area of the smart terminal Dual interface NFC tag payment information sharing method, characterized in that the recognition by operation.
46. The method of claim 43,

    In the step (c), the payment server allocates the access address of the first memory unit of the dual interface NFC tag to the dual interface NFC tag payment information randomly or sequentially according to a specific time. Way.
47. The method of claim 43,

    In the step (c), the payment server allocates the access address of the first memory unit of the dual interface NFC tag according to the time information of each system, characterized in that the dual interface NFC tag payment information sharing method .
48. The method of claim 47,

    In the step (e), the electronic device, a threshold time point at which the access address is changed by a time difference or a time delay with the smart terminal or the payment server -n time to + n time In the case of receiving payment information of the access address from the dual interface NFC tag, the electronic device reads the payment information from the access address address before and after the threshold time point of the data area in step (f) and is valid among them. The dual interface NFC tag payment information sharing method characterized in that the payment information is selected and sent to the payment server.
49. The method of claim 43,

    In the step (d), when the smart terminal writes the payment information to an access address of the allocated data area, the dual interface NFC tag has a signal waveform toggled up at the second port. The dual interface NFC tag payment information sharing method, characterized in that the detection toggles down and toggle back up.
50. The method of claim 43,

    In the step (b), the first port and the second port interwork with each other in the dual interface NFC tag, and the control signal for controlling enable and disable of the second port. Dual interface NFC tag payment information sharing method characterized in that the interlocked to use the output of the first port.
51. 51. The method of claim 50 wherein

    The interworking signal between the first port and the second port is used as an interrupt signal for the control unit (MCU) dual interface NFC tag payment information sharing method.
52. The method of claim 51, wherein

    When the interrupt signal is toggled from low to high and a predetermined time for tagging validity has elapsed, the dual interface NFC tag recognizes tagging of the smart terminal. Dual interface NFC tag payment information sharing method, characterized in that.
53. The method of claim 51, wherein

    When the interrupt signal is toggled down from high to low and a predetermined time for event termination determination has elapsed, the dual interface NFC tag is recognized as de-tagging of the smart terminal. How to share.
54. The method of claim 51, wherein

    When the interrupt signal is toggled down from high to low and back up from low to high again within a predetermined time, the dual interface NFC tag is written to the data write of the smart terminal to the first memory. Dual interface NFC tag payment information sharing method characterized in that the recognition.
55. The method of claim 51, wherein

    When the interrupt signal is toggled down from high to low and back up from low to high within a threshold time, the dual interface NFC tag payment information sharing method, characterized in that recognized as invalid operation .
56. The method of claim 43,

    In step (c), the payment server sequentially increases or decreases an access address of the first memory unit in which the payment information is to be recorded, or changes an address of an unused data area of the first memory unit. The dual interface NFC tag payment information sharing method, characterized in that for changing to the address and assigning to the smart terminal and the electronic device.

Images