KR101377631B1 - Sending digital code using audio frequency band - Google Patents

Abstract

The present invention relates to a method for delivering information using sound, which is capable of generating a sound file including a code corresponding to information which a host wants to send, and delivering the sound file to mobile equipment such as a smartphone. To this end, the present invention comprises: a service platform (10) for mixing a frequency at an audible frequency band to generate a sound file including a code which mobile equipment (30) can recognize; a host (20) for reproducing the sound file; and the mobile equipment (30) for analyzing the reproduced sound file, extracting the code therefrom, recognizing the code, and checking information mapped to an effective code through the service platform (10) by using the recognized code. [Reference numerals] (S11) Input information; (S12) Create a code; (S13) Create a sound file; (S14) Download and play the sound file; (S15) Receive the sound file; (S16) Compare the code with mapped information; (S17) Confirm the information

Description

Sending information using sound {sending digital code using audio frequency band}

The present invention relates to a method of delivering information using sound, and more particularly, to generate a sound file including a code corresponding to short information to be delivered by a host and to transmit the sound file to a mobile device such as a smartphone. It relates to a method of delivering information using.

As mobile communication terminals such as smartphones have become commonplace, information transmission technology through external sources such as barcodes, GPS, NFC, QR codes, and the like is becoming more common in mobile devices. Such information transmission technology is usefully used in various parts such as maps, display of product information, distribution information sharing, and promotion site URL sharing.

Information transmission technology through an external source such as a bar code, a global positioning system (GPS), a near field communication (NFC), a quick response code (QR), etc. is already registered and registered in Korea Patent No. 10-0690045 , 10-0495636, 10-0777369, 10-1140548, and the like.

The 'Internet information transmission device using a bar code' of the Korean Patent Registration No. 10-0690045 includes brochures, maps, business cards, educational booklets, telephone books, and merchandise in places such as public offices, lodging companies, tourist attractions, movie theaters, and various performance halls. The present invention discloses a technique of assigning a barcode to an information transmission medium such as a related public relations booklet, reading a barcode of the information delivery medium with a barcode reader, and transmitting the barcode to the management server on the Internet through an internet communication network. However, the prior art for transmitting information using a bar code has a limitation in the content or amount of information that can be represented by the bar code.

In addition, the Korean Patent Registration No. 10-0495636 'apparatus and method for providing location information using DAB, and the moving object position display apparatus and method' receives the position measurement signal transmitted by the GPS satellite to calculate its position coordinates and calculate A position information providing apparatus for detecting an error value by comparing the position coordinate with an actual coordinate, broadcasting the detected error value, and providing position coordinates of a plurality of peripheral moving bodies positioned around a predetermined moving object, and displaying the moving position The device receives the position measurement signal transmitted by the GPS satellites, calculates the position coordinates of the moving object, corrects the calculated position coordinates with the error value broadcast by the position information providing device, accurately detects the position coordinates of the moving object, Mobile object location displayed by mapping and displaying location information of nearby mobile devices provided by location information providing device on map data Market value is disclosed. However, the prior art of transmitting information using GPS is less accurate in location information and difficult to locate in the room.

In addition, the Korean Patent Registration No. 10-0777369 'electronic tag detection device and operation method of the NFC terminal' activates the application for detecting the NFC-type electronic tag and confirms the detection button signal input, the NFC-type electronic tag Disclosed is a technology of reading NFC electronic tag information through a process of wirelessly supplying power, reading NFC electronic tag information, writing the buffer unit, and erasing redundant information by filtering the buffer unit information. It is. However, prior art for transmitting information using NFC has to have a separate NFC electronic tag, there is a limit to the distance that can recognize the information.

In addition, the 'real-time event event method through QR code' of Korean Patent Registration No. 10-1140548 has a QR code that can be connected to a smartphone, a mobile phone, a computer and receive an application for sending, editing, and outputting a congratulatory image or a message. Providing a step, installing an application on a smartphone, a mobile phone, a computer, etc. by accessing the server by a QR code, providing a celebration image or a message at various events to the server through a wired or wireless communication network using the application, the server The present invention discloses a method of real-time event through the step of outputting a celebration image or message in real time through a real-time output device of the site. However, the prior art for transmitting information using a QR code has to be provided with a separate camera for photographing the QR code, and there is a limit in the distance at which the information can be recognized.

Domestic registered patent No. 10-0690045 (2007. 03. 09. registration announcement) Domestic registered patent No. 10-0495636 (2005. 06. 16. registration announcement) Domestic Patent Registration No. 10-0777369 (Registration notification of November 19, 2007) Domestic registered patent No. 10-1140548 (2012. 05. 02. registration announcement)

Accordingly, an object of the present invention is to enable the delivery of short information using space, that is, sound.

Method for delivering information by using the sound according to the present invention for achieving the above object, the first step of generating a code mapped to the specific information in the service platform and a sound file; A second step of downloading and reproducing a sound file provided from the service platform on a host; A third step of extracting and recognizing a code after receiving a sound file played in the host from a mobile device; And a fourth step of checking information corresponding to a code by comparing a code extracted from the mobile device and a code mapped to specific information in the service platform, wherein the host intends to access the service platform and transmit the information. If is input, the service platform is generated as a sound file including a code corresponding to the feature is characterized in that stored in the memory of the location specified by the host.

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The sound file is characterized in that the code is included in the 18KHz ~ 21KHz frequency band located at the edge of the audio frequency band.

The sound file may be music or audio output from a TV or a radio.

The sound file is characterized in that it is reproduced in all the sound equipment provided with a speaker.

The host may include a playback module for playing a sound file and a speaker for outputting a sound file played by the playback module.

The mobile device is characterized in that it comprises a microphone for receiving a sound file output from the host.

After receiving the sound file, the mobile device extracts and recognizes a code, and downloads and mounts a program for confirming information corresponding to the code from the service platform.

Therefore, according to the present invention, the present invention generates a sound file containing a code that can be recognized by the mobile device by mixing the frequencies of the audible frequency band, play the sound file on the host, and the mobile sound file After extracting the code by analyzing it in the equipment, the code that is recognized and acquired through the service platform can be used to check the valid code and the mapped information, so that short information can be delivered using space, that is, sound.

1 is a system configuration diagram for transmitting information using sound according to the present invention.
FIG. 2 is a flowchart illustrating a process of transmitting information using sound in the system of FIG. 1.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a system configuration diagram for transmitting information using sound according to the present invention.

As shown in FIG. 1, a system for delivering information using a sound according to the present invention downloads a sound file from a service platform 10, such as a server on the Internet, or the service platform 10. Host 20 to reproduce the sound, the mobile device 30, such as a smart phone and the like to receive the sound file output from the host 20 to extract the code and check the corresponding information.

The host 20 may store a code value to be transmitted through the service platform 10 in a sound file. At this time, the method to put the code in the sound file is as follows.

To generate a code using sound, the service platform 10 treats the frequency as one bit and generates a code by taking a value between 18 KHz and 21 KHz as a bit value when generating a 32 bit code.

At this time, in order to increase the recognition rate of the frequency, the service platform 10 widens the interval between Hz to the maximum. For example, to generate a code value of '9', you need to generate a 1001 binary value and generate 18KHz (value of 8) and 18.2KHz (value of 1) (50Hz steps) frequencies and mix them into a sound file.

In this case, a method of generating and mixing a corresponding frequency in a sound file in the service platform 10 may be performed by hardware or software, and an implementation method may vary depending on a designer.

The code generated by the service platform 10 is stored by mapping the information to the memory 11 at a location designated by the host 20, and the host 20 accesses or downloads the service platform 10 as needed. can do.

The host 20 reproduces the generated sound file through a speaker (not shown) in a specific space and obtains a code value by receiving and analyzing the sound file through a mobile device 30 such as a smartphone. Can be.

The method of analyzing the code value in the mobile device 30 as described above is as follows.

The sound reproduced by the host 20 and output through the speaker is received through a microphone and delivered to the fast fourier transfor- nate (FFT) of the mobile device 30. The mobile device 30 finds a frequency that is equal to or greater than a specific power value between 18 KHz and 21 KHz through frequency-specific power through an FFT, and maps the binary value.

In this case, since the mobile device 30 cannot recognize all the frequency frequencies at once, the recognition rate can be increased through a short time, that is, a specific time, for the XOR of the resultant value.

The mobile device 30 obtained through the above process checks the information mapped to the service platform 10 through the application program interface (API), and checks the information to be transmitted by the host 20.

FIG. 2 is a flowchart illustrating a process of transmitting information using sound in the system of FIG. 1.

First, when the host 20, that is, the host 20 administrator accesses the service platform 10 and inputs information to be transmitted (S11), the service platform 10 may be configured to provide specific information input by the host 20 administrator. After the mapped code is generated (S12), a sound file including the code is generated (S13) and stored in the memory 11.

The sound file generated by the service platform 10 may include a code in the 18KHz ~ 21HKHz frequency band located at the edge of the audio frequency band.

In this case, the host 20 manager may store a location of the memory 11 in which the generated sound file is stored, and may download the sound file stored in the memory 11 as needed.

The host 20 which has downloaded the sound file from the service platform 10 reproduces it and outputs it through a speaker (not shown) (S14), which may be music or audio output from a TV or radio.

In other words, the sound file may be reproduced and output in all audio devices including a speaker or in a host 20 having a speaker for outputting a sound file reproduced in the playback module and a sound module. have.

Of course, the sound apparatus or host 20 may be provided with a terminal capable of communicating with the service platform 10 or the Internet, and having a terminal capable of communicating with the service platform 10.

The mobile device 30 that receives the sound file reproduced and output from the host 20 through a microphone (S15) extracts a code from the sound file and recognizes the code, and then extracts the code from the mobile device 30 and the service platform ( In contrast to the code mapped to the specific information in 10), information corresponding to the code is checked (S16) (S17).

Therefore, the user of the mobile device 30 such as a smart phone may receive and analyze the sound reproduced and output from the host 20 to the mobile device 30 to check the information to be transmitted by the host 20.

To this end, the mobile device 30 may receive a sound file from the service platform 10 on the Internet, extract a code, recognize the code, and download and mount a program for confirming information corresponding to the code.

10: service platform 11: memory
20: host 30: mobile equipment

Claims (8)

A first step of generating a code mapped to specific information in the service platform 10 and generating a sound file;
A second step of downloading and playing back a sound file provided from the service platform 10 in the host 20;
A third step of extracting and recognizing a code after receiving the sound file played by the host 20 from the mobile device 30; And
A fourth step of identifying information corresponding to the code by comparing the code extracted from the mobile device 30 with the code mapped to specific information in the service platform 10,
When the host 20 accesses the service platform 10 and inputs the information to be transmitted, the service platform 10 generates a sound file including a code corresponding thereto and designates the location designated by the host 20. Method for delivering information using a sound, characterized in that stored in the memory of. delete The method of claim 1,
The sound file is a method for delivering information using a sound, characterized in that the code is included in the 18KHz ~ 21KHz frequency band located at the edge of the audio frequency band. The method of claim 1,
And the sound file is music or audio output from a TV or a radio. The method of claim 1,
The sound file is a method for transmitting information by using a sound, characterized in that the reproduction of all the sound equipment equipped with a speaker. The method of claim 1,
The host (20) is a method for transmitting information using a sound, characterized in that it comprises a playback module for playing a sound file and a speaker for outputting a sound file played in the playback module. The method of claim 1,
And the mobile device (30) comprises a microphone for receiving a sound file output from the host (20). The method of claim 1,
The mobile device 30 receives a sound file, extracts and recognizes a code, and uses a sound to download and mount a program for confirming information corresponding to the code from the service platform 10. How to pass information by.

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