KR101720230B1 - Earphone suporting a magnetic secure transmission - Google Patents

Abstract

In various embodiments of the present disclosure, an apparatus and a method for processing card payment based on an MST mobile payment method in a portable payment terminal using an electronic device are proposed. To this end, an earphone includes a plug coupled to a socket provided in an electronic device, a header including a coil for converting a magnetic field generated from the outside into an electrical signal, a lead line including a microphone line and connecting the header and the plug, and a switch for transmitting an electrical signal generated by the coil to the microphone line.

Description

EARPHONE SUPPORTING A MAGNETIC SECURE TRANSMISSION < RTI ID = 0.0 >

This disclosure relates to a gender that includes an earphone that supports mobile payment based on magnetic secure transmission (MST) technology and a switch module that supports it.

Most commercial transactions, which are usually part of economic activities, involve settlement. For example, a consumer can pay a predetermined amount of money by using cash or a card for reasons such as purchasing goods or using restaurants. Payment using the card (hereinafter referred to as " card payment ") may be performed through the payment terminal. The payment terminal may be installed at an affiliate shop. The payment terminal can support payment of a card by various kinds of cards such as a credit card and a cash card.

In commerce, consumption patterns are changing in various forms. For example, the activation of electronic commerce using a computer, a smart phone, or the like may correspond to a change in a typical consumption pattern. This change in consumption patterns has become a starting point for changing existing payment methods. For example, a mobile payment method using smart payment means in an electronic device such as a smart phone may be an example of a typical change.

The mobile payment method is based on a method based on recent MST technology (hereinafter referred to as " MST mobile payment method ") in a method based on near field communication (NFC) ').

The NFC technology supports wireless communication of a very short distance (within about 10 cm) using a frequency of 13.56 MHz band. In order to use it as a mobile payment method, a payment terminal must support NFC communication. However, since existing payment terminals do not support NFC communication, payment terminal replacement should be preceded in order to activate NFC mobile payment method.

The MST mobile payment method is a technique of transmitting credit card information by bringing an electronic device having a loop antenna close to a payment terminal. That is, the same magnetic field as the magnetic field generated when the magnetic credit card is connected to the payment terminal is generated using a loop antenna built in the electronic device, thereby transmitting the credit card information to the payment terminal. Therefore, the MST mobile payment method can conveniently use the mobile payment without having to replace the payment terminal. In order to support the MST mobile payment method, a loop antenna capable of generating an electromagnetic signal as a magnetic field signal corresponding to credit card information should be provided.

As described above, the existing payment method focuses on developing a payment means capable of providing services while minimizing the change of the payment terminal. As a result, it was unsuitable for use in a portable payment terminal utilizing an electronic device such as a smart phone.

According to an embodiment of the present disclosure, an apparatus and method for processing card settlement based on an MST mobile payment method in a portable payment terminal utilizing an electronic device can be provided.

According to an embodiment of the present disclosure, a mobile payment terminal converts a magnetic field signal generated by an MST mobile payment means into an electric signal so as to process a card settlement based on an MST mobile payment method, and transmits the electric signal to the portable payment terminal Can be provided.

According to an embodiment of the present disclosure, it is possible to provide an earphone for converting an electrical signal generated for payment in an electronic device having smart payment means into a magnetic field signal.

According to an embodiment of the present disclosure, an electronic device that processes a mobile payment service based on an electrical signal transmitted from an earphone, converts credit card information for card settlement into an electrical signal, and transmits the electronic signal to the earphone, Can be provided.

An earphone according to various embodiments of the present disclosure includes a plug coupled with a socket provided in an electronic device, a header incorporating a coil for converting a magnetic field generated from the outside into an electrical signal, and a microphone line, A lead line connecting the plug and a switch for transmitting an electrical signal generated by the coil to the microphone line.

A payment method in an electronic device having a socket to which a plug of an earphone according to various embodiments of the present disclosure is coupled is characterized by receiving an electrical signal through a microphone terminal provided in the socket when the payment processing function is activated, A step of acquiring information on the credit card from the received electrical signal, performing a payment process using the acquired information on the credit card, and activating a payment request function, And outputting the generated electrical signal through an audio terminal provided in the socket.

1 is a diagram illustrating a configuration for providing mobile settlement according to an embodiment proposed in the present disclosure.
FIG. 2 is a diagram illustrating a configuration of a bidirectional gender implemented to support an MST mobile payment based on interworking with an earphone, in accordance with various embodiments proposed in this disclosure.
Figure 3 is a diagram illustrating a switch in accordance with various embodiments proposed in this disclosure.
4 is a diagram showing the configuration of a switch module according to various embodiments proposed in the present disclosure.
5 is a diagram illustrating a control flow for processing mobile settlement in an electronic device, in accordance with various embodiments proposed in this disclosure.

Hereinafter, various embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood, however, that this disclosure is not intended to limit the present disclosure to the particular embodiments, but includes various modifications, equivalents, and / or alternatives of the embodiments of the present disclosure. In connection with the description of the drawings, like reference numerals may be used for similar components.

In the present disclosure, the expressions " have, " " comprise, " " comprise, " And does not exclude the presence of additional features.

In this disclosure, the expressions "A or B," "at least one of A and / or B," or "one or more of A and / or B," etc. may include all possible combinations of items listed together . For example, "A or B," "at least one of A and B," or "at least one of A or B" includes (1) at least one A, (2) Or (3) at least one A and at least one B all together.

The expressions " first ", " second ", " first ", or " second ", etc. used in various embodiments of the present disclosure may be used to modify various components, And does not limit the constituent elements. The representations may be used to distinguish one component from another. For example, the first user equipment and the second user equipment may represent different user equipment, regardless of order or importance. For example, without departing from the scope of the present disclosure, the first component may be referred to as a second component, and similarly, the second component may be named as the first component.

(Or functionally or communicatively) coupled with / to "another component (eg, a second component), or a component (eg, a second component) Quot; connected to ", it is to be understood that any such element may be directly connected to the other element or may be connected through another element (e.g., a third element). On the other hand, when it is mentioned that a component (e.g., a first component) is "directly connected" or "directly connected" to another component (e.g., a second component) It can be understood that there is no other component (e.g., a third component) between the other components.

The phrase " configured to be used " as used in this disclosure includes, for example, "having the capacity to," "suitable for, To be designed to, "" adapted to, "" made to, "or" capable of ". The term " configured (or set) to " may not necessarily mean " specifically designed to " Instead, in some situations, the expression " configured to " may mean that the device can " do " with other devices or components. For example, a processor configured (or configured) to perform the phrases " A, B, and C " may be a processor dedicated to performing the operation (e.g., an embedded processor), or one or more software programs To a generic-purpose processor (e.g., a CPU or an application processor) that can perform the corresponding operations.

The terms used in this disclosure are used only to describe certain embodiments and may not be intended to limit the scope of other embodiments. The singular expressions may include plural expressions unless the context clearly dictates otherwise. All terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art of the present disclosure. Commonly used predefined terms may be interpreted as having the same or similar meaning as the contextual meanings of the related art and are not to be construed as ideal or overly formal in the sense of the art unless explicitly defined herein . In some cases, the terms defined herein may not be construed to exclude embodiments of the present disclosure.

A payment terminal according to various embodiments of the present disclosure may be implemented by all electronic devices capable of credit card payment processing, provided with a socket through which earphone can be connected. To this end, an electronic device capable of credit card payment processing may be required to support communication services over a wireless or wired network and to store information for credit settlement. For example, an electronic device or an electronic terminal may be a POS terminal, a smart phone, a tablet personal computer, a mobile phone, a videophone, an e-book reader, Such as a desktop personal computer, a laptop personal computer, a net-book computer, a workstation, a server, a personal digital assistant (PDA), a portable multimedia player (PMP) , Mobile medical devices, cameras, or wearable devices such as smart glasses, head-mounted-devices (HMD), electronic apparel, electronic bracelets, electronic necklaces, (e. g., apps, e-tat, smart mirror, or smart watch).

In various embodiments described below, an earphone engageable with a portable payment terminal generates an electrical signal induced by a magnetic field generated from the outside using a coil provided to convert an electrical signal into a magnetic field for driving the diaphragm, And the electric signal is provided to the portable payment terminal through the microphone line.

To this end, a switch module for switching an audio line connecting the coil to a microphone line connecting the portable payment terminal is installed in the earphone so that the electric signal induced by the coil can be transmitted to the portable payment terminal through the microphone line . In this case, it is preferable that the switch module is installed between the plug and the microphone in the earphone. The plug means a terminal for connecting the earphone to the portable payment terminal.

For example, in case of an earphone having left and right heads, one of the audio lines connecting the left and right heads may be selectively connected to a microphone line connecting the portable payment terminal You can connect.

According to the embodiment proposed in the present disclosure, the switch module provided in the earphone can be constituted by a switch for alternately connecting the inner microphone line to the outer microphone line and the outer audio line by operation. Herein, the inner side indicates the direction of connecting the portable payment terminal based on the switch module, and the outer side indicates the opposite direction of connecting the portable payment terminal based on the switch module.

According to the embodiment proposed in the present disclosure, the switch module provided in the earphone may further include a harvest circuit for generating a switch driving voltage from the current flowing to the audio line constituting the lead wire of the earphone. In this case, the switch constituting the switch module can connect the path for transferring the electric signal generated by the coil to the portable payment terminal by the voltage generated by the harvesting circuit.

Various embodiments to be proposed below will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating a configuration for providing mobile settlement according to an embodiment proposed in the present disclosure.

Referring to FIG. 1, an MST mobile payment can be performed by a first electronic device 110 such as a smart phone and an earphone 120. The first electronic device 110 includes an audio socket for connecting the earphone 120.

The earphone 120 includes a plug 121 for coupling with an audio socket of the first electronic device 110, first and second headers 126 and 127, And a lead line 122, 124, 125 connecting the first and second headers 126, 127, respectively. The earphone 120 includes a first lead line 122 connecting the plug 121 and second and third lead lines 124 and 125 connecting the first and second headers 126 and 127, The branching device 123 may further include:

The branching device 123 may include a microphone that converts an audible signal to an electrical signal and provides the converted electrical signal to the first electronic device 110 via a microphone line included in the lead line 122 have. The microphone may be installed on a lead line connecting the branching element 123 and the header of one of the first and second headers 126 and 127.

Assuming that the microphone is mounted on a second lead line 124 connecting the branching element 123 and the first header 126, the first lead line 122 is connected to two audio lines, Lines and ground lines. The second lead line 124 may include one audio line, a microphone line, and a ground line. The third lead line 125 may include one audio line and a ground line.

According to one embodiment, the magnetic field generated from the second electronic device 130 requesting MST mobile settlement induces a current into a coil included in the first header 126, and the current induced in the coil is converted into an electrical signal Through the audio line included in the second lead line 124. An electrical signal transmitted through the audio line may be provided on the second lead line 124 or on the first lead line 122 so that it can be provided to a microphone terminal included in the audio socket of the first electronic device 110. [ Module may be provided.

For example, when the switch module is installed in the second lead line 124, the switch module switches the audio line included in the second lead line 124 in the section connecting the first header 126 to the branch And may be connected to the mic line included in the second lead line 124 in the section connecting the element 123. [

As another example, when the switch module is installed in the first lead line 122, the switch module connects the audio line included in the first lead line 122 in the section connecting the branching element 123 to the plug 121 may be connected to a microphone line included in the first lead line 122 in a section for connecting the microphone terminal included in the second lead line 121. [

As another example, when the switch module is installed in the branching device 123, the switch module connects the audio line included in the second lead line 124 to the microphone terminal included in the plug 121, 1 lead line 122, as shown in FIG.

According to one embodiment, the electrical signal requesting the MST mobile settlement output from the first electronic device 110 may be output to one of two audio terminals of the audio socket. The output electrical signal is supplied to the audio line included in the first lead line 122 and the audio line included in the third lead line 125 (not shown) via one of two audio terminals provided in the plug 121 of the earphone 120 To the second header 127 through the second header 127. At this time, the switch module may be installed at any position on the first lead line 122 to which the electrical signal is transmitted and the third lead line 125.

For example, when the switch module is installed in the first lead line 122, the switch module connects the audio line included in the first lead line 122 in the section connecting the plug 121 to the branch element 123, The first and second lead lines 122 and 123 may be connected to an audio line included in the first and second lead lines 125 and 125, respectively.

Alternatively, when the switch module is installed in the third lead line 125, the switch module connects the audio line included in the third lead line 125 of the section connecting the branching element 123 to the second header 127 may be connected to the audio line included in the third lead line 125 of the section connecting the coil included in the second lead line 125.

As another example, when the switch module is installed in the branching element 123, the switch module may connect the audio line included in the first lead line 122 to the first header line 127, 3 lead line 125. In this case,

FIG. 2 is a diagram illustrating a configuration of a bidirectional gender implemented to support an MST mobile payment based on interworking with an earphone, in accordance with various embodiments proposed in this disclosure.

2, the bidirectional gender includes a plug 220 to be connected to an audio socket of an electronic device, a socket 230 to be connected to a plug of an earphone, and at least two terminals of the plug 220, And a switch SW 210 connected to the switch SW 210.

The plug 220 may include at least one audio terminal, a microphone terminal, and a ground terminal, and the socket 230 may include at least one audio terminal, a microphone terminal, and a ground terminal.

The plug 220 may be coupled to an audio socket provided on the electronic device, and the socket 230 may be coupled to a plug of the earphone. It can be assumed that the electronic device supports both a function as a payment request terminal (credit payment request mode) and a function as a payment processing terminal (a credit payment processing mode). The payment request terminal refers to a terminal performing a function of requesting a credit settlement based on previously stored credit card information, and the settlement processing terminal performs a function of processing a credit settlement based on credit card information provided from the outside Quot; terminal "

One side of the switch (SW) 210 may be connected to the plug 220 by at least one audio line and a lead line including a microphone line and a ground line. The other side of the switch (SW) 210 may be connected to the socket 230 by at least one audio line and a lead line including a microphone line and a ground line.

According to one embodiment, the switch SW 210 connects one of the two audio terminals constituting the socket 230 to one of two audio terminals constituting the plug 220, 220 to the microphone terminal.

As an example, when the electronic device operates in a credit payment request mode, the switch 210 switches one of the two audio terminals constituting the plug 220 to two audio It can be connected to one of the terminals. In this case, the electrical signal provided for the credit settlement request from the electronic device will be delivered to one of the two headers constituting the earphone.

As another example, when the electronic device operates in the credit settlement processing mode, the switch (SW) 210 can connect the microphone terminal constituting the plug 220 to one of the two audio terminals constituting the socket 230 have. In this case, a coil-induced electrical signal constituting one of the two headers constituting the earphone will be forwarded to the microphone terminal constituting the socket of the electronic device. The electrical signal generated by the coil is due to the induction of the magnetic field generated for the payment request from the portable terminal supporting the MST mobile settlement.

Figure 3 is a diagram illustrating a switch in accordance with various embodiments proposed in this disclosure.

Referring to FIG. 3, the switch SW may include at least three ports (first through third ports). For example, the first port 310 'c' of the switch SW is an audio terminal, and may be connected to a single audio terminal provided in a plug of an earphone or a coil in a header constituting an earphone. The second port 320 'b' of the switch SW is a microphone terminal. The second port 320 'b' of the switch SW can be connected to a microphone terminal constituting an audio socket of the electronic apparatus or a microphone line connecting a microphone terminal provided in a plug of the earphone. The third port 330 'a' of the switch SW is an audio terminal, which is connected to one audio terminal constituting an audio socket of the electronic device or an audio line connecting one audio terminal provided in a plug of the earphone .

The switch SW may connect the first port 310 'c' to any one of the third port 330 'a' and the second port 320 'b'. The switch SW is a toggle button, and can be operated alternately corresponding to a trigger responding to an external factor. At this time, the external factor may be the trigger signal applied through the control line connecting the electronic device.

According to one embodiment, when the electronic device operates in a credit payment request mode, the switch SW may connect the first port 310 to the third port 330. [ This allows an electrical signal requesting a credit settlement to be provided to the third port 330 through one of two audio terminals constituting the audio socket of the electronic device to be configured as an earphone through the first port 310 Lt; RTI ID = 0.0 > 1 < / RTI >

According to one embodiment, when the electronic device is operating in a credit settlement processing mode, the switch SW may connect the first port 310 to the second port 320. Which requests a credit settlement provided to the first port 310 from a coil (or an audio terminal of one of the two audio terminals constituting the plug of the earphone) contained in one of the two headers constituting the earphone Through the second port 320, to a microphone terminal constituting an audio socket of the electronic device.

Although not shown in Fig. 3, a harvesting circuit may be additionally provided. The harvest circuit may generate an operating voltage to drive the switch SW using an analog signal provided from the electronic device to the third port 330. [ The harvesting circuit may output an operating voltage for operating the switch SW in response to an external operation.

4 is a diagram showing the configuration of a switch module according to various embodiments proposed in the present disclosure.

Referring to FIG. 4, the direction in which the switch module connects to the audio socket of the electronic device is referred to as inner side, and the direction connected to the earphone or earphone header is referred to as the outer side.

The switch module may include a switch 410 and a harvesting circuit 420. The switch 410 may have four inner terminals and four outer terminals. The four inner terminals may be comprised of first and second inner audio terminals 430 and 432, an inner microphone terminal 434 and an inner ground terminal 436, Two external audio terminals 440 and 442, an external microphone terminal 444 and an external ground terminal 446. [

The first and second inner audio terminals 430 and 432 may connect two audio terminals (L and R terminals) provided in the audio socket of the electronic device, and the inner microphone terminal 434 may connect audio (M terminal) provided in the socket, and the inner ground terminal 436 can connect a ground terminal (G terminal) provided in the audio socket of the electronic device. Each of the inner terminals 430, 432, 434, and 436 provided in the switch 410 is connected to terminals provided in an audio socket of the electronic device by one of two audio lines, a microphone line, and a ground line .

The first and second external audio terminals 440 and 442 may be connected to two audio terminals (L and R terminals) provided in a plug of an earphone or a coil of left and right headers constituting an earphone, The terminal 444 may be connected to a microphone terminal (M terminal) provided in a plug of the earphone or a microphone constituting the earphone. The external ground terminal 446 may be connected to a ground terminal (G terminal) Or to a microphone or header that makes up the microphone. Each of the external terminals 440, 442, 444, and 446 provided in the switch 410 is connected to terminals or a header or a microphone provided on the plug of the earphone by one of two audio lines, a microphone line, Lt; / RTI >

The switch 410 connects the first inner audio terminal 430 to the first outer audio terminal 440 and connects the inner ground terminal 436 to the outer ground terminal 446. The switch SW # 1 constituting the switch 410 switches the port d corresponding to the second outside audio terminal 442 to the port a corresponding to the second inside audio terminal 431 or the port a corresponding to the inside microphone terminal 434 b. The switch SW # 2 constituting the switch 410 can connect the port e corresponding to the outer microphone terminal 444 to the port b corresponding to the inner microphone terminal 434 or the opened port c.

The SW # 1 and the SW # 2 may be interlocked. That is, when the SW # 1 connects the port d to the port a, the SW # 2 connects the port e to the port b, and when the SW # 1 connects the port d to the port b, Connect e to port c. Accordingly, the switch 410 can be operated as a toggle button in response to a trigger responding to an external factor. At this time, the external factor may be the trigger signal applied through the control line connecting the electronic device.

According to one embodiment, when the electronic device operates in the credit payment request mode, SW # 1 may connect port d to port a, and SW # 2 may connect port e to port b. The second external audio terminal 432 is connected to the second external audio terminal 442 through an audio terminal of one of the two audio terminals constituting the audio socket of the electronic device, To form a path for delivery to the coil included in the header of one of the two headers constituting the earphone.

According to one embodiment, when the electronic device operates in the credit settlement processing mode, SW # 1 may connect port d to port b, and SW # 2 may connect port e to port c. Which is provided from the coil (or audio terminal of one of the two audio terminals constituting the plug of the earphone) included in the header of one of the two headers constituting the earphone to the second outside audio terminal 442, Lt; RTI ID = 0.0 > 434 < / RTI > to a microphone terminal constituting an audio socket of the electronic device.

The harvest circuit 420 may generate an operating voltage required for the switch 420 to drive using analog signals provided from an electronic device through the first and second inner audio terminals 430 and 432 . The harvesting circuit 420 may output an operating voltage for operating the switch 420 in response to an external operation.

The switch or switch module shown in FIGS. 3 and 4 can be constructed at any location on the lead line of the earphone, as shown in FIG. 1, or can be configured as a gender that can connect the plug of the earphone and the audio socket of the electronic device. have.

5 is a diagram illustrating a control flow for processing mobile settlement in an electronic device, in accordance with various embodiments proposed in this disclosure. It is assumed that the electronic device supports all the functions according to the payment request and payment processing. The payment request function and the payment processing function can be implemented by installing an application supporting the payment request function and the payment processing function.

Referring to FIG. 5, a payment request in an electronic device can be performed by generating credit card information as an electrical signal, and outputting the generated electrical signal to an audio line of an earphone connected to an audio socket. An electrical signal output to the audio line will be supplied to a coil constituting a header connected to the audio line. An electrical signal supplied through the audio line will cause the coil to generate a magnetic field for MST mobile settlement.

The settlement process in the electronic device receives an electrical signal supplied through a microphone line of an earphone connected to an audio socket, obtains credit card information from the received electrical signal, and performs settlement processing using the obtained credit card information Can be performed. The electrical signal supplied through the microphone line of the earphone may be an electrical signal induced by a magnetic field generated from the outside of the coil provided at the header of the earphone. To this end, the earphone may include a switch module for converting an electrical signal, which is induced by a coil and transmitted through an audio line, to a microphone line and transmits the microphone signal to an audio socket of the electronic device.

To this end, when a request from a user is received, the electronic device executes a payment processing application in step 510. [ The payment processing application may have an operation mode for requesting settlement to an external payment terminal or for processing a credit settlement in response to an external settlement request.

When the application is executed, the electronic device determines in step 512 which operation mode is selected. For example, the electronic device determines whether a credit payment processing mode is selected or a credit payment request mode is selected from a user.

The application executed in the electronic device will perform an operation for requesting a credit payment if the credit settlement request mode is selected, but will perform an operation for credit settlement processing if a credit settlement processing mode is selected.

In operation 514, the electronic device may generate an electrical signal corresponding to the preset credit card information for credit settlement. The generated electrical signal may be the same as the signal applied to the loop antenna for MST mobile settlement.

In step 516, the electronic device may provide the generated electrical signal to the audio terminal of the audio socket. If an earphone is connected to the audio socket, an electrical signal provided to the audio terminal of the audio socket will be transmitted to the coil provided in the header through the audio line of the earphone. When an electrical signal is applied to the coil, a predetermined magnetic field will be generated by the coil. The magnetic field can be utilized for MST mobile settlement. That is, the magnetic field is provided to the payment terminal, and the payment terminal provided with the magnetic field enables the credit payment processing to be performed.

In order to easily implement the MST mobile settlement according to the above description, in order to generate a magnetic field to the extent that MST mobile settlement is possible, the electronic device transmits the intensity of the electric signal supplied through the audio socket Intensity, etc.) need to be adjusted.

More specifically, the electronic device receives an electrical signal through the microphone terminal of the audio socket in step 518, and receives credit card information from the provided electrical signal. Can be obtained. If the electronic device includes a loop antenna for MST mobile settlement, the electronic device can use an electrical signal supplied through the audio socket instead of the output of the loop antenna. To this end, the electronic device may include a switch for selecting an output of the loop antenna and an output of a microphone terminal of the audio socket.

The electronic device may process the credit settlement using the credit card information acquired in step 520. [

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, . Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the appended claims, as well as the appended claims. not only. These modifications should not be understood individually from the technical idea or viewpoint of the present disclosure.

Claims (10)

A plug coupled with a socket provided in the electronic device;
A header incorporating a coil for converting a magnetic field generated from the outside into an electrical signal;
A microphone line, a lead line connecting the header and the plug; And
And a switch for transmitting an electrical signal generated by the coil to the microphone line.
The method according to claim 1,
Wherein the switch alternately connects the coil to an audio line included in the lead line and the microphone line.
3. The method of claim 2,
Wherein the switch is a toggle button.
The method according to claim 1,
Further comprising: a harvest circuit for supplying driving power to the switch using an audio signal provided from the electronic device via an audio line included in the lead line.
A payment method in an electronic device having a socket to which a plug of an earphone is coupled,
When the payment processing function is activated, receives an electrical signal through a microphone terminal provided in the socket, acquires information on the credit card from the input electrical signal, and performs settlement processing using the information on the acquired credit card ; And
Generating an electrical signal corresponding to information on a predetermined credit card when the payment request function is activated, and outputting the generated electrical signal through an audio terminal provided in the socket.
6. The method of claim 5,
Executing a payment processing application and activating one of the payment processing function and the payment request function based on the information input through the user interface corresponding to the executed payment processing application.
6. The method of claim 5,
Wherein the generated electrical signal is the same as a signal applied to the loop antenna for magnetic security transmission mobile settlement.
6. The method of claim 5,
Wherein the input electrical signal is an electrical signal obtained by converting a magnetic field generated from the outside by a coil incorporated in a header constituting the earphone.
6. The method of claim 5,
Wherein the electric signal output through the audio terminal causes a magnetic field to be generated by a coil incorporated in a header constituting the earphone.
10. The method of claim 9,
Wherein the intensity of the electrical signal output through the audio terminal is adjusted so that the coil generates a magnetic field to enable magnetic security transfer mobile settlement.

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