KR20220007423A - Soundtag mobile billing system using ultra directional speaker - Google Patents

Abstract

Provided is a sound-tag payment system using an ultra-directional speaker, which promptly and accurately guide payment information and perform payment. According to the present invention, the sound-tag payment system comprises a first terminal and a second terminal. The first terminal includes an ultra-directional speaker modulating a sound tag containing information on a carrier wave in an ultrasonic region to transmit the sound tag including basic payment information to the second terminal by using the ultra-directional speaker, receives a payment request from the second terminal, requests execution of a payment process to a payment relay server in accordance with the payment request, and receives a payment authentication and approval result from the payment relay server or a payment server to transmit a sound tag including payment authentication and approval information to the second terminal. The second terminal includes: a signal receiving unit receiving a modulated signal including the sound tag from the ultra-directional speaker of the first terminal; a signal analysis unit extracting a sound tag region containing information from the received signal; and a signal processing unit processing a payment-related process according to the information analyzed by the signal analysis unit.

Description

Sound tag payment system using super directional speaker {SOUNDTAG MOBILE BILLING SYSTEM USING ULTRA DIRECTIONAL SPEAKER}

The present invention relates to a sound tag payment system using a super directional speaker, and more particularly, to a super directional payment system capable of promptly and accurately guiding payment information and performing payment using a sound payment means mounted on a terminal without operating a separate pad. It relates to a sound tag payment system using a speaker.

The content described in this section merely provides background information for the present embodiment and does not constitute the prior art.

In recent years, payment methods instead of spot money have been widely used. This has made it possible to create an environment in which electronic commerce such as the Internet is possible, to supply ATMs with various functions, to supply mobile communication terminals and to activate financial transactions using them.

Electronic money, which is widely used on the Internet, can be exemplified as an alternative to spot money. However, card payment, micropayment using mobile phone bills, and account transfer are used as much as when real money is transacted, such as spot money and electronic money. In particular, in the case of account transfer, it is possible to use devices such as ATMs, mobile phones, and the Internet easily 24 hours a day without visiting the bank in person as in the past. The use of card payments, micropayments, and account transfers is increasing as online shops and online services on the Internet become more active.

Among them, the payment method using a mobile phone has the advantage that even a person who does not have a separate cash or credit card usually carries his or her mobile phone, so a situation in which payment cannot be made due to not possessing it by mistake does not occur.

However, this method of payment using a mobile phone requires that a separate application program and certificate be downloaded and installed on their mobile phone, and a lot of information must be entered through a small screen. There are many difficulties in

Sound communication technology refers to a technology that transmits digital information in a high frequency band that humans cannot hear. As the frequency of sound increases, it becomes inaudible to the human ear, so the high-frequency sound is used like Morse code to transmit information. With this sound wave communication technology, devices can send and receive information without disturbing people.

When sound wave communication technology is used, when music with sound codes is played on TV or radio, the mobile phone recognizes the sound and automatically shows singer information, lyrics, MP3 storage, etc. You can receive it from your mobile phone and provide related services. Also called sound code, sound tag or voice barcode technology.

The sound wave communication technology according to the prior art is better than the electromagnetic wave, but it spreads widely in a closed space and has a transmission characteristic.

In addition, the sound wave communication technology according to the prior art uses low-frequency ultrasonic waves (18 to 20 KHz) in the audible region, artificial sound such as music is treated as noise in sound wave communication, and complex frequency patterns (such as Chirp) are used for noise immunity. This is necessary, and BPS (Bit Per Second) performance decreases.

In addition, the sound wave communication technology according to the prior art can communicate only in the air over a short distance, and spatial security issues and unnecessary communication triggers occur.

Accordingly, in the present invention, it is intended to propose a sound tag payment system using a super-directional speaker capable of resolving the above-described technical limitations in relation to payment.

The present invention has been devised to solve the problems of the prior art as described above,

The purpose is to provide a sound tag payment system using a super-directional speaker that can guide payment information and perform payment quickly and accurately without operating a separate pad using the sound payment means mounted on the terminal.

[Prior art literature]

[Patent Literature]

(Patent Document 1) Korean Patent Registration No. 10-0622078, published on September 1, 2006 (Title: Supercardioid speaker system and signal processing method)

(Patent Document 2) Korean Patent No. 10-1074431, published on October 11, 2011 (Title: Supercardioid ultrasonic speaker system)

(Patent Document 3) Korean Patent Application Laid-Open No. 10-2019-0110275, published on September 30, 2019 (Title: Acoustic event detection method using a directional microphone, and acoustic event detection device using a directional microphone)

The technical problem of the present invention as described above is achieved by the following means.

(1) a sound tag including basic payment information is transmitted to a second terminal by using the super directional speaker, including a super directional speaker that modulates a sound tag including information on a carrier wave in the ultrasonic region, and the second terminal receives a payment request from, requests to proceed with a payment process to a payment relay server according to the payment request, receives payment authentication and approval results from the payment relay server or payment server, and sends the payment authentication and approval information to the second terminal a first terminal for transmitting a sound tag including; and,

a signal receiving unit for receiving a modulated signal including a sound tag from the super directional speaker of the first terminal; a signal analysis unit for extracting a sound tag area containing information from the received signal; and a second terminal including a signal processing unit that processes a payment-related process according to the information analyzed by the signal analysis unit.

(2) The supercardioid speaker according to (1), which modulates the sound tag,

a signal amplifier for amplifying a signal to be transmitted; A transmission data generator for generating transmission data by bandspreading sound tag information including information with a code having orthogonality, a digital summer for summing the transmission data, and a signal modulator for modulating the combined transmission data by fusion with an ultrasonic carrier wave Transmission signal processing unit including; a frequency combination unit for combining a frequency domain to include the sound tag; and a signal transmitting unit for transmitting the signal generated by the signal modulator or the frequency combination unit to a second terminal.

(3) In the above (2), the transmission signal processing unit,

A sound tag payment system using a super-directional speaker, characterized in that it includes at least three channels for spreading the sound tag transmission data including information and a channel for spreading one checksum data.

(4) The transmission data generation unit according to (2) or (3) above,

Sound tag using a super directional speaker, characterized in that it further comprises a data multiplier for generating transmission data by multiplying first data generated by spreading the sound tag transmission data including information and second data different from the first data payment system.

(5) The sound tag included in the transmission signal processing unit according to (1) above,

A sound tag payment system using a super directional speaker, characterized in that the data is modulated through the inaudible region of 18kHz to 20kHz or the inaudible region of 20kHz to 22kHz.

(6) The frequency combination unit according to (1) above,

A sound tag payment system using a super directional speaker, characterized in that it combines the frequencies of the normal audible range of 20Hz to 18kHz and the inaudible range of 18kHz to 20kHz.

(7) The frequency combination unit according to (1) above,

A sound tag payment system using a super directional speaker, characterized in that it combines the frequencies of the inaudible range of 18kHz to 20kHz and the inaudible range of 20kHz to 22kHz.

(8) In the above (1), the signal analysis unit,

A sound tag payment system using a super directional speaker, characterized in that filtering for other frequency regions and analyzing only sound tags in the region of 20 kHz to 22 kHz.

As described in detail in the above embodiment, the present invention is a sound tag payment system using a super-directional speaker that can promptly and accurately guide payment information and perform payment without operating a separate pad using the sound payment means mounted on the terminal. provides

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are included as a part of the detailed description for better understanding of the present invention, provide embodiments of the present invention, and together with the detailed description, explain the technical features of the present invention.
1 is an overall configuration diagram of a sound tag receiving payment system using a super-directional speaker according to the present invention.
2 is a flowchart showing a sound tag reception payment process using a super directional speaker according to the present invention.
3 is a diagram illustrating a transmission/reception frequency domain of a sound wave communication system according to the prior art.
4 is a diagram illustrating the configuration of a sound tag system using a super directional speaker according to an embodiment of the present invention.
5 is a diagram illustrating a frequency domain of a sound tag system using a super directional speaker according to an embodiment of the present invention.
6 is a diagram illustrating the configuration of a supercardioid speaker according to an embodiment of the present invention.
7 is a diagram illustrating a configuration of a second terminal according to an embodiment of the present invention.
8 is an overall configuration diagram of a sound tag system using a super directional speaker as a preferred embodiment of the present invention;
9 is a diagram showing the appearance of a signal waveform on the transmission side according to an embodiment of the present invention.
10 is a view showing a state of a signal waveform on the receiving side according to an embodiment of the present invention.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings. DETAILED DESCRIPTION The detailed description set forth below in conjunction with the appended drawings is intended to describe exemplary embodiments of the present invention and is not intended to represent the only embodiments in which the present invention may be practiced. The following detailed description includes specific details in order to provide a thorough understanding of the present invention. However, one of ordinary skill in the art to which the present invention pertains will recognize that the present invention may be practiced without these specific details.

In some cases, well-known structures and devices may be omitted or shown in block diagram form focusing on core functions of each structure and device in order to avoid obscuring the concept of the present invention.

Throughout the specification, when a part is said to "comprising or including" a certain component, it does not exclude other components unless otherwise stated, meaning that other components may be further included. do. In addition, terms such as “…unit”, “…group”, and “module” described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software. have. Also, "a or an", "one", "the" and like related terms are used differently herein in the context of describing the invention (especially in the context of the following claims). Unless indicated or clearly contradicted by context, it may be used in a sense including both the singular and the plural.

In describing the embodiments of the present invention, if it is determined that a detailed description of a well-known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, the terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to intentions or customs of users and operators. Therefore, the definition should be made based on the content throughout this specification.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

A sound tag payment system using a super directional speaker according to the present invention,

Including a super directional speaker that modulates a sound tag containing information on a carrier wave in the ultrasonic region, transmits a sound tag including basic payment information to a second terminal using the super directional speaker, and requests a payment from the second terminal In response to the payment request, the payment process is requested to the payment relay server, the payment authentication and approval results are received from the payment relay server, and a sound tag including the payment authentication and approval information is transmitted to the second terminal. a first terminal to and,

a signal receiving unit for receiving a modulated signal including a sound tag from the super directional speaker of the first terminal; a signal analysis unit for extracting a sound tag area containing information from the received signal; and a second terminal including a signal processing unit for processing a payment-related process according to the information analyzed by the signal analysis unit.

1 is an overall system configuration diagram showing a sound tag payment system using a super directional speaker, a first terminal 100 ′, a second terminal 200, and a payment relay server 300 including a super directional speaker 100 , and a payment server 400 .

The first terminal 100 ′ may be a terminal owned by various shopping mall operators that display and sell products for users offline or a terminal owned by a customer wishing to make a payment. The first terminal 100 ′ includes a super-directional speaker 100 , and performs a process of requesting or transmitting basic payment information in connection with payment through sound wave communication to the second terminal 200 .

If the first terminal 100 'is a merchant terminal, and the second terminal 200 is a smartphone owned by the customer, the second terminal 200 determines whether the sound wave payment and payment method (credit card, check card, mobile payment, etc.), the super directional speaker 100 requests payment basic information (a unique identification number such as a card number and mobile phone number) from the second terminal 200 .

Contrary to this, when the first terminal 100 ′ is a smartphone owned by the customer, and the second terminal 200 is an affiliated store terminal, the first terminal 100 ′ determines whether a sound wave payment is made and a payment method (credit card). , check card, mobile bill payment, etc.) is selected, the super directional speaker 100 transmits payment basic information (unique identification number such as card number, mobile phone number, etc.) to the second terminal 200, and the second terminal 200 performs a payment process with a payment relay server or a payment server.

In another embodiment, when the first terminal 100 'is a smartphone owned by the customer, and the second terminal 200 is an affiliated store terminal, the first terminal 100' determines whether the sound wave payment is made and the payment method If you select (credit card, check card, mobile bill payment, etc.), the super directional speaker 100 sends payment basic information (product unique number, product price, second terminal unique identification number, etc.) to the second terminal 200 It makes a request and performs the payment process with the payment relay server or payment server.

In the present invention, the supercardioid speaker 100 is a device for reproducing an audio signal in an audible band from ultrasonic waves in an audible band or higher, and is a high-tech sound device by combining ultrasonic waves and sound waves. The system according to an embodiment of the present invention transmits a sound tag (data) requesting payment basic information transmission by transmitting a modulation signal using the super directional speaker 100 instead of a speaker of a general audible frequency band.

A payment process is performed with the payment relay server 300 or the payment server 400 using the basic payment information received from the first terminal 100 ′ or the second terminal 200 .

The second terminal 200 is a device that receives a signal transmitted from the super directional speaker 100, extracts a sound tag included in the signal, and performs processing/analysis.

When the first terminal 100' or the second terminal 200 is a terminal owned by a customer, it is typically a smartphone, but any information communication device capable of processing information with a built-in microphone, a tablet computer (Tablet) PC), notebook (Notebook), netbook (Net book), multimedia terminal, IP (Internet Protocol) terminal, mobile phone, PMP (Portable Multimedia Player), MID (Mobile Internet Device), etc. have.

The payment relay server 300 is a server operated by a payment gateway (PG) company, which typically acts as an electronic payment agent on the Internet, and is connected to the first terminal 100 and the payment server 400 through a network, and is a process related to electronic payment and relays the payment process between the second terminal 200 and the payment server 400 .

The payment server 400 is a server operated by a credit card company, a mobile communication company, or a financial institution that performs authentication and payment approval tasks. The server performs authentication and approval related to payment with the payment relay server 300 .

Of course, in the system of the present invention, the payment relay server 300 may be omitted. Hereinafter, an example in which the payment relay server 300 performs a payment process as an intermediary will be described.

Finally, when authentication and approval of the payment is completed, the payment relay server 300 transmits it to the first terminal 100 ′, and if necessary, the first terminal 100 ′ uses the super-directional speaker 100 to make payment It is also possible to transmit to the second terminal 200 using a sound tag to notify that the is completed.

The payment system using the sound tag according to the present invention as described above requires various physical facilities such as a base station, a relay station, a control station, and a communication network for communication in addition to the respective components, but these facilities are already known systems. Although omitted in the description of the present invention, it will be understood by those skilled in the art that any known equipment necessary for the physical implementation of the system may be included.

In the payment system according to the present invention, as an example of a typical payment process other than the configuration related to sound tag transmission and signal processing between the super-directional speaker 100 and the second terminal 200, the first terminal 100' or the second terminal The process between the terminal 200 and the payment relay server 300, and the payment relay server 300 and the payment server 400 is sufficient to use a typical level of technology in the art. Hereinafter, mainly the process using a sound tag will be described. It will be limitedly described.

2 is a diagram illustrating a transmission/reception frequency domain of a sound wave communication system.

In the method of data transmission using sound, sound in the audible range was transmitted through sound wave transmission/reception in a human-centered sound environment.

The frequency of the human hearing range is 20 Hz to 20 kHz. The reproducible frequency of a typical smartphone speaker is 20Hz ~ 20KHz, and the available frequency of a smartphone microphone is 20Hz ~ 22KHz.

In the existing sound wave communication system, data was transmitted and received at 18 kHz to 20 kHz, which is a region that is difficult to hear among the audible region, mainly near ultrasonic.

However, there is a problem in the prior art that the recognition rate is lowered because there are various sounds in the audible range of 18 kHz to 20 kHz, and there is a lot of noise other than the data of the sound tag.

3 is a diagram illustrating a frequency domain of a sound tag system using a super directional speaker according to an embodiment of the present invention.

The super directional speaker 100 is a speaker made so that the sound can be heard only in a specific area by aiming and sending the sound like light, and has an infinite range of applications such as exhibition halls and bus stops, as well as a guide system for the visually impaired. The super directional speaker 100 is a special purpose speaker that modulates a sound signal and then loads and transmits the ultrasonic signal. The sound transmission distance is up to 300m, which is much longer than that of general speakers.

Ultrasound is a type of acoustic vibration and refers to sound waves that exceed the range that humans can hear. The range of hearing varies from person to person, but the frequency that the average person can hear is about 20Hz to 20kHz. Therefore, in ultrasonic technology, sound waves with a frequency of 20 kHz or higher are usually called ultrasonic.

Ultrasound is completely inaudible because it is in a frequency range that is outside the human audible range. However, when an ultrasonic beam passes through space, the ultrasonic wave has a property of being distorted in a predictable direction due to the intrinsic properties (non-linearity) of the space. This distortion can be changed to a frequency component of the audible band, and if it is accurately predicted and precisely adjusted, it can be used as the supercardioid speaker 100 .

The straightness of the ultrasonic wave, the flat frequency band characteristic of the ultrasonic transducer, and the acoustic energy conversion are highly efficient, and there is no deterioration in sound quality due to harmonics. In addition, there is no limit to the low frequency reproduction band due to mechanical resonance as in the conventional speaker, and since an enclosure is unnecessary as a speaker system, it is possible to improve the sound quality, improve the band characteristics, and achieve high efficiency compared to the conventional speaker system. In addition, it can be applied to various IT fields because it has the advantage of easily generating the entire audible sound range and the orientation in a specific direction is very large.

The super directional speaker 100 needs not only the function of a general speaker but also an additional function for digital modulation and amplification into the ultrasonic region to be mounted in the amplifier.

The super directional speaker 100 according to the present invention uses a frequency of 18 kHz or higher as a carrier wave, and when the second terminal 200 is a smartphone, the sound pickup area of the microphone is 18 to 22 kHz.

In FIG. 3, 18 kHz to 20 kHz and 20 kHz to 22 kHz bands are used as a sound tag area in the super directional speaker 100, and 40 kHz is shown as a carrier wave.

In addition, although FIG. 3 illustrates a double-sideback modulation (DSB) method or a vestigial sideband (VSB) method, single-sideback modulation (SSB) is not excluded.

In the supercardioid speaker 100, modulation consists of a signal carrier for conveying information, the amplitude of the carrier wave, and an information signal having information (Message Signal).

When the amplitude-modulated signal is Fourier-transformed and viewed in the frequency domain, the upper and lower sidebands of the same shape are generated by frequency shifting up and down by the carrier frequency.

Among the various modulation techniques, when the amplitude of the carrier wave is proportional to the information signal, the technique of transmitting information on both the Upper SideBand and the Lower SideBand is called Double Sideback Modulation (DSB).

SSB (Single Sideback Modulation) is a method of transmitting only one sideband among the upper sideband or the lower sideband on the spectrum.

VSB (Vestigial Sideband) Among amplitude modulation methods, unlike SSB, it is a modulation method that does not completely remove one sideband, but leaves a part of it and removes the rest.

In the microphone of the second terminal 200 , there is no significant difference between the sound tag method and the existing sound tag method in the audible region (18 to 20 kHz) and near ultrasonic region of the general sound tag. However, there is a lot of noise of general audible sound in this area.

When the method according to an embodiment of the present invention is used, the speed and reliability are improved when filtering is performed for other regions and data is acquired for the 18 kHz to 22 kHz region.

In FIG. 3, both the cases of sound absorption in the ultrasonic proximity region ((18 kHz to 20 kHz) and the inaudible region (20 kHz to 22 kHz) are illustrated.

4 is a diagram illustrating the configuration of a supercardioid speaker according to an embodiment of the present invention.

The signal amplifier 110 amplifies the output of the signal, and the transmission signal processing unit 120 spreads the sound tag information including the information into a code having orthogonality, and loads the sound tag information on a carrier wave (eg, 40 kHz). fused to be sent.

In the sound tag transmission method according to the present invention, data can be transmitted in the frequency domain below.

1. 20Hz ~ 18kHz: Transmits audible data using normal audible range (heard data)

2. 18kHz ~ 20kHz: Transmits data to the audible area that is hard to hear

3. 20kHz ~ 22kHz: Transmits data in the audible region

4. Paragraphs 1 & 2 above, or a combination of items 2 & 3

In FIG. 3, only methods 2 and 3 are shown among the above 4 methods.

The frequency combination unit 130 combines the above methods as needed to combine different frequencies within the same method (eg, 18 kHz to 19 kHz and 19 kHz to 20 kHz in paragraph 2), or data transmission frequencies within different methods (eg, 2 The range of 18 kHz to 20 kHz and 20 kHz to 22 kHz) is extended with the combination of terms and 3 terms to improve speed and reliability.

The signal transmitter 140 transmits the modulated or combined signal to the second terminal 200 .

On the other hand, among the latest smart phones, there is a phone equipped with a speaker capable of playing up to 22 kHz. When this function is implemented, the transmission signal processing unit 120 is omitted, so that bidirectional communication (sound tag) in the 20 kHz to 22 kHz band without additional hardware is implemented. It is also possible to

5 is a diagram illustrating a configuration of a second terminal according to an embodiment of the present invention.

The signal receiving unit 210 receives the modulated signal transmitted from the signal transmitting unit 140 of the super directional speaker 100 .

The received signal processing unit 220 extracts a portion containing information, ie, a sound tag area, from among the received modulated signals. Acquisition in the audible region and near ultrasonic region of a general sound tag is not significantly different from the existing sound tag method. Acquisition of data in the 22kHz region improves speed and reliability.

The device control unit 230 drives other devices of the second terminal, for example, a display, a speaker, a communication unit, and the like, according to the information analyzed by the received signal processing unit 220 to process and process the information.

When the second terminal 200 is a smart device, the signal receiver 210 may utilize the microphone of the second terminal 200 . In addition, the received signal processing unit 220 and the device control unit 230 may be implemented as a function of an application program (app, App) that is activated or driven in the background.

6 is an overall configuration diagram of a sound tag transmission/reception system using a super directional speaker as a preferred embodiment of the present invention.

In the sound tag system according to the embodiment, the transmission signal processing unit 120 includes a transmission data generation unit 122 , a transmission-side digital summer 124 , and a signal modulator 126 .

The transmission data generator 122 further includes a bandwidth spreader 122a and, if necessary, a data multiplier 122b.

Each of the three data streams d ₁ , d ₂ , and d ₃ is generated by the orthogonal code blocks (c ₁ , c ₂ ), (c ₂ , c ₃ ), (c ₄ , c ₅ ) in the spreader 122a, respectively. The bandwidth is spread to generate transmission data c _i , c _j , and c _k , respectively. In this case, each of c _i , c _j , and c _k is also another orthogonal code.

In a preferred embodiment of the present invention as needed, the spreading part (122a) d _4, place the data multiplier (122b) to the rear end, of each of the additional data string to the transmission data of c _i, c _j, c _k of d _5, By _{multiplying each d 6} , new transmission data c _i ·d ₄ , c _j ·d ₅ , and c _k ·d ₆ can be generated to greatly improve transmission efficiency.

_{In the embodiment of the present invention, d 7} =d ₁ ·d ₂ ·d ₃ is used as checksum data for detecting an error in the data transmission process, _{and at this time, cl=c i} ·c is an orthogonal code for spreading the checksum data. _j ·c _k is used. Similarly, checksum data may be added, and in this case, d ₈ =-d ₄ ·d ₅ ·d ₆ is used for the added checksum data.

Transmission data generated through the above process is summed by the transmitting-side digital summer 124 , and is transmitted through the signal transmitting unit 140 after being modulated by the signal modulating unit 126 .

In addition, the reception signal processing unit 220 of the sound tag system according to the embodiment includes a signal demodulation unit 222 , a despreading unit 224 , a reception side digital summer 226 , and a data extraction unit 228 . The data extraction unit 228 further includes a first data extraction unit 228a and a second data extraction unit 228b if necessary.

The data demodulated by the signal demodulator 222 is multiplied by the orthogonal codes c ₁ , c ₂ , c ₃ , c ₄ , c ₅ , c ₆ ) in the despreading unit 224 and despreaded to form six data streams. _{is output as d 1} , d ₂ , and d ₃ as original data from the first data extraction unit 228a through the receiving-side digital summer 226 . At this time, if the additional data strings d ₄ , d ₅ , d ₆ are added during transmission, there are two sound tags such as _{(d 1} , d ₄ ), (d ₂ , d ₅ ), (d ₃ , d _{6 ). The six data d 1} , d ₂ , d ₃ , d ₄ , d ₅ , d that are output in a form including information and initially transmitted through the first data extraction unit 228a and the second data extraction unit 228b ₆ are printed respectively. Preferably, the first data extraction unit 228a _{outputs d 1} , d ₂ , and d ₃ as a method of finding the maximum value, respectively, and the second data extraction unit 228b finds the polarity d ₄ , d ₅ and d ₆ are printed.

A signal waveform obtained for each step through the above process is shown in FIGS. 7 (transmitting side) and 8 (receiving side), respectively.

As described above, according to the present invention, it is possible to provide a sound tag reception payment system using a super-directional speaker that can guide payment information and perform payment quickly and accurately without operating a separate pad using the sound payment means mounted on the terminal. have.

Combinations of each block in the block diagram attached to this specification and each step in the flowchart may be performed by computer program instructions. These computer program instructions may be embodied in a processor of a general-purpose computer, special-purpose computer, or other programmable data processing equipment, such that the instructions executed by the processor of the computer or other programmable data processing equipment correspond to each block in the block diagram or in the flowchart. Each step creates a means for performing the described functions. These computer program instructions may also be stored in a computer-usable or computer-readable memory which may direct a computer or other programmable data processing equipment to implement a function in a particular manner, and thus the computer-usable or computer-readable memory. The instructions stored in the block diagram may also produce an item of manufacture containing instruction means for performing a function described in each block of the block diagram or each step of the flowchart. The computer program instructions may also be mounted on a computer or other programmable data processing equipment, such that a series of operational steps are performed on the computer or other programmable data processing equipment to create a computer-executed process to create a computer or other programmable data processing equipment. It is also possible that instructions for performing the processing equipment provide steps for carrying out the functions described in each block of the block diagram and in each step of the flowchart.

Further, each block or each step may represent a module, segment, or portion of code comprising one or more executable instructions for executing specified logical function(s). It should also be noted that in some alternative embodiments it is also possible for the functions recited in blocks or steps to occur out of order. For example, it is possible that two blocks or steps shown one after another may in fact be performed substantially simultaneously, or that the blocks or steps may sometimes be performed in the reverse order according to the corresponding function.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

According to the sound tag reception payment system using the super directional speaker of the present invention, payment using a sound tag can be used to promptly and accurately guide payment information and perform payment without operating a separate pad using the sound payment means mounted on the terminal. In the sense that it can be used as a solution that provides a system, as it goes beyond the limits of existing technology, the possibility of marketing or sales of the applied device, not just the use of the related technology, is sufficient, and it is a degree that can be clearly implemented in reality. It is an invention with industrial applicability.

100: super directional speaker
100': first terminal
120: transmission signal processing unit
130: frequency combination unit
140: signal transmitter
200: second terminal
210: signal receiver
220: reception signal processing unit
230: device control unit
300: payment relay server
400: payment server

Claims (8)

Including a super directional speaker that modulates a sound tag containing information on a carrier wave in the ultrasonic region, transmits a sound tag including basic payment information to a second terminal using the super directional speaker, and requests a payment from the second terminal receiving, requesting to proceed with the payment process to the payment relay server according to the payment request, receiving the payment authentication and approval result to the payment relay server or from the payment server, and including the payment authentication and approval information to the second terminal a first terminal for transmitting a sound tag; and,
a signal receiving unit for receiving a modulated signal including a sound tag from the super directional speaker of the first terminal; a signal analysis unit for extracting a sound tag area containing information from the received signal; and a second terminal including a signal processing unit that processes a payment-related process according to the information analyzed by the signal analysis unit. The method of claim 1, wherein the supercardioid speaker modulating the sound tag,
a signal amplifier for amplifying a signal to be transmitted; A transmission data generator for generating transmission data by bandspreading sound tag information including information with a code having orthogonality, a digital summer for summing the transmission data, and a signal modulator for modulating the combined transmission data by fusion with an ultrasonic carrier wave Transmission signal processing unit including; a frequency combination unit for combining a frequency domain to include the sound tag; and a signal transmitting unit for transmitting the signal generated by the signal modulator or the frequency combination unit to a second terminal. According to claim 2, wherein the transmission signal processing unit,
A sound tag payment system using a super-directional speaker, characterized in that it includes at least three channels for spreading the sound tag transmission data including information and a channel for spreading one checksum data. The method of claim 2 or 3, wherein the transmission data generation unit comprises:
Supercardioid using a supercardioid speaker, characterized in that it further comprises a data multiplier for generating transmission data by multiplying first data generated by spreading the sound tag transmission data including information and second data different from the first data. Sound tag payment system using speakers. The method of claim 1, wherein the sound tag included in the transmission signal processing unit,
A sound tag payment system using a super directional speaker, characterized in that the data is modulated through the inaudible region of 18kHz to 20kHz or the inaudible region of 20kHz to 22kHz. According to claim 1, wherein the frequency combination unit,
A sound tag payment system using a super directional speaker, characterized in that it combines the frequencies of the normal audible range of 20Hz to 18kHz and the inaudible range of 18kHz to 20kHz. According to claim 1, wherein the frequency combination unit,
A sound tag payment system using a super directional speaker, characterized in that it combines the frequencies of the inaudible range of 18kHz to 20kHz and the inaudible range of 20kHz to 22kHz. According to claim 1, wherein the signal analysis unit,
A sound tag payment system using a super directional speaker using a super directional speaker, characterized in that filtering for other frequency regions and analyzing only the sound tag in the 20 kHz to 22 kHz region.

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