WO2016204571A1 - Dispositif à étiquette nfc à double interface, procédé et système de partage des informations de paiement à l'aide d'étiquette nfc à double interface - Google Patents

Dispositif à étiquette nfc à double interface, procédé et système de partage des informations de paiement à l'aide d'étiquette nfc à double interface Download PDF

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Publication number
WO2016204571A1
WO2016204571A1 PCT/KR2016/006482 KR2016006482W WO2016204571A1 WO 2016204571 A1 WO2016204571 A1 WO 2016204571A1 KR 2016006482 W KR2016006482 W KR 2016006482W WO 2016204571 A1 WO2016204571 A1 WO 2016204571A1
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WIPO (PCT)
Prior art keywords
payment information
port
nfc tag
dual interface
smart terminal
Prior art date
Application number
PCT/KR2016/006482
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English (en)
Korean (ko)
Inventor
이상봉
Original Assignee
주식회사 신흥정밀
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from KR1020150085875A external-priority patent/KR101570374B1/ko
Application filed by 주식회사 신흥정밀 filed Critical 주식회사 신흥정밀
Publication of WO2016204571A1 publication Critical patent/WO2016204571A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/32—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using wireless devices
    • G06Q20/327—Short range or proximity payments by means of M-devices
    • G06Q20/3278—RFID or NFC payments by means of M-devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/30—Payment architectures, schemes or protocols characterised by the use of specific devices or networks
    • G06Q20/308—Payment architectures, schemes or protocols characterised by the use of specific devices or networks using the Internet of Things

Definitions

  • 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.
  • NFC Near field communication
  • RFID radio frequency identification
  • 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.
  • FIG. 1 is a view showing a payment system using a conventional NFC module.
  • 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.
  • 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.
  • 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. .
  • 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;
  • 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.
  • 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 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 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.
  • the first port may include an energy harvest field detection (EH_FD) port
  • the second port may include a radio frequency write in progress (RF_WIP) port.
  • EH_FD energy harvest field detection
  • RF_WIP radio frequency write in progress
  • the main control unit 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.
  • the main control unit (MCU) 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.
  • 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.
  • 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 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.
  • the main control unit 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.
  • MCU main control unit
  • 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.
  • the combined signal of the first port and the second port may be used as an interrupt signal for the main control unit (MCU).
  • MCU main control unit
  • the main control unit 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.
  • the main control unit MCU may recognize that the smart terminal is de-tagging.
  • main control unit 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.
  • the payment information sharing method using a dual interface NFC tag 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 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.
  • 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.
  • the signal waveform toggled up at the second port may be toggled down and again toggled up may be detected.
  • 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.
  • the combined signal of the first port and the second port may be used as an interrupt signal for the main control unit (MCU).
  • MCU main control unit
  • 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.
  • 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.
  • 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).
  • interrupt signal 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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 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;
  • 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.
  • the payment server may randomly or sequentially allocate the memory address of the dual interface NFC tag according to a specific time.
  • the payment server may allocate the memory address of the dual interface NFC tag according to the time information of each system.
  • 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
  • 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.
  • the smart terminal and the electronic device may receive and update the changed access address from the payment server.
  • the toggled-up signal waveform 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).
  • MCU unit
  • the first port may include an energy harvest field detection (EH_FD) port
  • the second port may include a radio frequency write in progress (RF_WIP) port.
  • EH_FD energy harvest field detection
  • RF_WIP radio frequency write in progress
  • 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,
  • 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.
  • 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.
  • the combined signal of the first port and the second port may be used as an interrupt signal for the control unit (MCU).
  • MCU control unit
  • 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.
  • 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.
  • control unit 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.
  • 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.
  • the dual interface NFC tag payment information sharing method 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the electronic device 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
  • the dual interface NFC tag toggles down the signal waveform toggled up at the second port. It can be detected by toggle-up again.
  • 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.
  • interworking signals of the first port and the second port may be used as an interrupt signal for the control unit (MCU).
  • MCU control unit
  • the dual interface NFC tag may be recognized as tagging of the smart terminal. have.
  • the dual interface NFC tag may be recognized as untagging of the smart terminal.
  • the dual interface NFC tag may recognize the smart terminal's data write to the first memory. Can be.
  • the dual interface NFC tag can be recognized as invalid operation.
  • 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.
  • 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.
  • 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.
  • the memory and the control unit are provided in the dual interface NFC tag, a separate NFC module is not required, thereby increasing the system configuration and increasing the cost.
  • 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.
  • FIG. 1 is a view showing a payment system using a conventional NFC module.
  • FIG. 2 is a view schematically showing the configuration of a dual interface NFC tag device according to an embodiment of the present invention.
  • FIG. 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.
  • FIG. 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.
  • FIG. 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.
  • FIG. 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.
  • portion 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.
  • 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.
  • FIG. 2 is a view schematically showing the configuration of a dual interface NFC tag device according to an embodiment of the present invention.
  • the dual interface NFC tag device 200 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).
  • MCU Main
  • Control Unit 240 Main
  • 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.
  • 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.
  • 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.
  • RF_WIP Radio Frequency Write In Progress
  • 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.
  • 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.
  • SCL serial clock
  • SDA serial data
  • 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.
  • 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.
  • the second memory unit 242 may be implemented with, for example, SRAM
  • the third memory unit 244 may be implemented with, for example, a Flash memory.
  • the main control unit 240 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.
  • the main control unit 240 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.
  • 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.
  • 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.
  • 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.
  • the combined signal of the first port and the second port may be used as an interrupt signal for the main control unit 240.
  • 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.
  • 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.
  • FIG. 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.
  • the dual interface NFC tag device 200 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.
  • the combined signal of the first port and the second port may be used as an interrupt signal for the main control unit 240.
  • 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.
  • 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.
  • the first port may typically be an EH_FD port
  • the second port may typically be an RF_WIP port.
  • the smart terminal performs tagging in proximity to the dual interface NFC tag (S310).
  • the dual interface NFC tag IC 220 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.
  • the main control unit 240 switches to tagging of the smart terminal. Recognize (S320).
  • the dual interface NFC tag device 200 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.
  • 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.
  • 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.
  • the main control unit 240 may recognize that the smart terminal is de-tagging.
  • 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). .
  • 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).
  • the signal waveform toggled up at the second port is toggled down and then toggled up 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • FIGS. 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.
  • the first port is an EH_FD port and the second port is an RF_WIP port.
  • 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.
  • 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.
  • 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.
  • 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.
  • the main control unit 240 recognizes the tagging of the smart terminal.
  • 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.
  • 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.
  • 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).
  • the main control unit 240 counts and records the number of times payment information is written in the data area (S360).
  • 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.
  • the main control unit 240 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.
  • 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.
  • the main control unit 240 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.
  • 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.
  • FIG. 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 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.
  • the area 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.
  • 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.
  • WR_count write counts
  • CRC data validity determination method
  • 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 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.
  • FIG. 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.
  • the dual interface NFC tag payment information sharing system 700 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the payment server 740 may allocate the memory address of the dual interface NFC tag 720 randomly or sequentially according to a specific time.
  • the payment server 740 may allocate an access address of the dual interface NFC tag 720 according to time information of each system.
  • the smart terminal 710 and the electronic device 730 receive and update the changed access address from the payment server 740.
  • FIG. 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.
  • the smart terminal performs tagging in proximity to the dual interface NFC tag (S810).
  • 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.
  • 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).
  • 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).
  • 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.
  • 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.
  • the write life cycle (Endurance 1 million) of the first memory unit 220 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.
  • 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.
  • 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).
  • 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.
  • 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).
  • the electronic device 730 transmits the received payment information to the payment server 740 (S860).
  • 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.
  • the payment server 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.
  • 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.
  • 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.
  • 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.
  • the first port may typically be an EH_FD port
  • the second port may typically be an RF_WIP port.
  • 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.
  • any connection is properly termed a computer readable medium.
  • 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 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • processors It may be implemented in a controller, microcontroller, microprocessor, other electronic units designed to perform the functions described herein, or a combination thereof.
  • 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.
  • 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.
  • ком ⁇ онент includes, 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.
  • 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.
  • 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.
  • 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.
  • NFC module 30 payment server
  • antenna unit 220 first memory unit
  • port portion 240 main control unit

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Abstract

La présente invention permet à un terminal intelligent et à un dispositif électronique de partager des informations de paiement, d'une manière telle que, si le terminal à puce identifie un numéro d'adresse d'accès enregistré dans une zone de drapeau d'adresse d'accès d'une étiquette NFC à double interface, puis enregistre les informations de paiement dans une zone de données du numéro d'adresse d'accès correspondant, le dispositif électronique lit les informations de paiement à partir du numéro d'adresse d'accès de la zone de données. Un dispositif d'étiquette NFC à double interface selon la présente invention comprend : une unité de port comprenant un premier port pour reconnaître l'étiquetage du terminal intelligent, un second port pour reconnaître des enregistrements de données depuis le terminal à puce, et un troisième port pour transmettre/recevoir les informations de paiement vers/depuis le dispositif électronique ; une première unité de mémoire comprenant une zone de drapeau d'adresse d'accès ayant un numéro d'adresse d'accès pour enregistrer les informations de paiement et le nombre des enregistrements qui y sont enregistrés, et une zone de données pour enregistrer les informations de paiement ; une unité de commande principale (MCU). L'unité de commande principale (MCU) est conçue : si, dans le premier port, une forme d'onde de signal est basculée vers le haut et basculée vers le bas, et le basculement vers le haut est à nouveau détecté après une certaine période, pour reconnaître l'étiquetage du terminal intelligent ; si, dans le second port, la forme d'onde de signal basculée vers le haut est basculée vers le bas, puis un basculement vers le haut est à nouveau détecté, pour reconnaître une action d'enregistrement dans la zone de données ; pour lire les informations de paiement à partir du numéro d'adresse d'accès correspondant, puis pour transmettre les informations de paiement au dispositif électronique par l'intermédiaire du troisième port ; pour compter combien de fois les informations de paiement sont enregistrées dans la zone de données.
PCT/KR2016/006482 2015-06-17 2016-06-17 Dispositif à étiquette nfc à double interface, procédé et système de partage des informations de paiement à l'aide d'étiquette nfc à double interface WO2016204571A1 (fr)

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KR1020150085875A KR101570374B1 (ko) 2015-06-17 2015-06-17 듀얼 인터페이스 ｎｆｃ 태그 장치 및 듀얼 인터페이스 ｎｆｃ 태그를 이용한 결제 정보 공유 방법
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KR20150014317A (ko) * 2013-07-29 2015-02-06 삼성전자주식회사 근거리 무선 통신(ｎｆｃ)을 이용하여 무선 설정을 수행하는 화상형성장치 및 모바일 디바이스
KR20150015246A (ko) * 2013-07-31 2015-02-10 삼성전자주식회사 영상 촬영 장치, 사용자 단말 장치 및 영상 촬영 장치와 사용자 단말 장치의 통신 연결 방법
KR101503218B1 (ko) * 2014-07-23 2015-03-16 주식회사 도토리테크 보안을 강화한 근거리통신 단말기 및 보안태그

Cited By (2)

* Cited by examiner, † Cited by third party
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CN115250211A (zh) * 2022-03-31 2022-10-28 浙江绍兴苏泊尔生活电器有限公司 一种基于nfc的数据获取方法
CN115250211B (zh) * 2022-03-31 2024-04-26 浙江绍兴苏泊尔生活电器有限公司 一种基于nfc的数据获取方法

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