KR102027549B1 - Method, terminal and application for providing font security function based on qr code - Google Patents

Abstract

A method for providing a secure font based on a QR code by a user terminal, comprising: extracting XY coordinates of each of a plurality of points defined by a font designer and constituting a specific font; Provided is a QR code-based secure font providing method comprising converting an XY coordinate sequence composed of XY coordinates of the plurality of points into a QR code.

Description

Method for providing font security function based on QR code, user terminal and application {METHOD, TERMINAL AND APPLICATION FOR PROVIDING FONT SECURITY FUNCTION BASED ON QR CODE}

The present invention relates to a method for providing a font security function for providing a font. More specifically, the QR code-based font, which is easy to protect font design, data, and the like, is provided by converting and issuing font data into a QR code. A method, a user terminal and an application for providing a security function.

In recent years, unlike the past, which has been only for printing and publishing, the range of fonts has expanded indefinitely to various digital devices such as the Internet and mobile devices. In addition, as the user's needs are diversified, the user purchases and uses more colorful font files through the Internet, and the font developer secures a variety of font designs by developing various fonts corresponding to the needs of the user. have.

Accordingly, in the font providing service, the font security problem becomes more important. However, in most font providing services, there is no security for data leakage when developing, editing, and providing such fonts.

In general, a user selects a desired font and performs a download from a font providing service provided on the Internet or a terminal. In this case, since most of the font design, data, etc. are shown exposed on the website, there is a problem that theft, plagiarism, imitation, etc. of the font may occur. In addition, in the process of designing a font by a user, a font design leakage problem may occur when storing or transmitting font data.

Thus, by providing a QR code-based font download system for security, the need for a font security system to facilitate security when providing a font, to ensure the convenience of font provision is gradually increasing, There is a need for a solution to one problem.

The present invention is to solve the above-mentioned problems of the prior art, in the font security problems involved in using the font providing service, by providing a secure font based on the QR code rather than directly display the font data, the font The purpose of the present invention is to enhance security in providing and designing fonts, and to secure convenience of font security.

In addition, the font has a character set of tens of thousands of characters, and the amount of data of each character is large, so the capacity of the font reaches several megabytes. In particular, when the amount of the letters is huge, such as Chinese characters, or when a large amount of letters are generated by various types of combinations, such as Hangul, the capacity of the font is increased. Therefore, an object of the present invention is to secure the convenience of transmission and reception by compressing the data of the font.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood from the following description.

According to an embodiment of the present invention for achieving the above object, as a method for providing a secure font based on a QR code, the user terminal is defined by a font designer, each of a plurality of points constituting a particular font Extracting XY coordinates; Provided is a QR code-based secure font providing method comprising converting an XY coordinate sequence composed of XY coordinates of the plurality of points into a QR code.

In the QR code, the method may further include storing coordinate values of pixels corresponding to each vertex of the edge of the closed region defined as a black cell.

When the QR code is scanned by a dedicated viewer, the method may further include converting the QR code into a font having the same size.

According to a zoom in or zoom out command input by a user, the method may further include converting coordinates of the pixels to adjust the size of the font.

In addition, the application coupled to the user terminal, providing a secure font based on the QR code, a step defined by the font designer, extracting the XY coordinates of each of a plurality of points constituting a particular font; There is provided a secure font providing application, which is stored in the user terminal to execute the step of converting an XY coordinate sequence consisting of the XY coordinates of the plurality of points into a QR code.

On the other hand, a user terminal for providing a secure font based on a QR code, a user defined by the font designer, the font data extraction unit for extracting the XY coordinates of each of the plurality of points constituting a particular font; A QR code generation unit for converting an XY coordinate sequence consisting of XY coordinates of the plurality of points into a QR code; And a storage unit for storing the QR code in a TTF (True Type Font).

According to the present invention, by providing the font data in the QR code, it is possible to enhance the font security, thereby ensuring the convenience of font provision.

The effects of the present invention are not limited to the above-described effects, but should be understood to include all the effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a view schematically showing the configuration of an entire system according to an embodiment of the present invention.
2 is a diagram illustrating a configuration of a user terminal according to an exemplary embodiment of the present invention.
3 is a diagram illustrating data constituting a font according to an embodiment of the present invention.
4 is a diagram in which font data is converted into a QR code according to an embodiment of the present invention.
5 is a diagram of coordinate transformation of pixels of each cell of a QR code according to an embodiment of the present invention.

DETAILED DESCRIPTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention with respect to one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention, if properly described, is defined only by the appended claims, along with the full range of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention.

[Preferred Embodiments of the Invention]

Configuration of the entire system

1 is a view showing the configuration of an entire system according to an embodiment of the present invention.

Referring to FIG. 1, the entire system of the present invention may include a first user terminal 100, a second user terminal 200, and a web server 300 capable of communicating through a communication network.

The communication network 100 according to an embodiment of the present invention may be configured without regard to communication modes such as wired and wireless, for example, a local area network (LAN), a metropolitan area network (MAN: Metropolitan Area). It can be implemented in a variety of communication networks, such as a network, a wide area network (WAN). Preferably, the communication network 100 according to an embodiment of the present invention may be a known World Wide Web (WWW).

The first user terminal 100 according to an exemplary embodiment of the present invention receives a predetermined command from a user and drives a corresponding operation, and may be a digital device including a wired / wireless communication function or another function. According to an embodiment, the first user terminal 100 may be an electronic terminal displaying data, and a terminal capable of generating a two-dimensional barcode. For example, a tablet PC, a smartphone, a personal computer (for example, a laptop computer, etc.), a smart TV, a mobile phone, a navigation device, a web pad, a PDA, a workstation, etc., have memory means and are equipped with a microprocessor for computing power. It may be a concept that includes all equipped digital devices.

The second user terminal 200 may be provided with a device or an application that can read a QR code. The device may receive a predetermined command from a user and drive a corresponding operation, and may be a digital device including a wired / wireless communication function or another function. According to an embodiment, the second user terminal 200 may be a memory such as a tablet PC, a smartphone, a personal computer (eg, a laptop computer, etc.), a smart TV, a mobile phone, a navigation device, a web pad, a PDA, a workstation, or the like. It may be a concept including all digital devices having an imaging device having a means and a microprocessor equipped with a computing power.

The QR code scanner is a font-only viewer and may be provided by the second user terminal 200 itself. For example, the information may be provided by an OS (Operation Scheme) of the second user terminal 200 or may be provided by an application installed in the second user terminal 200. In addition, the QR code reader may be provided by the web server 300, the second user terminal 200 may simply use the QR code reader provided from the web server 300. As a QR code scanning method, a conventional method may be employed, and thus the operation thereof will be omitted.

On the other hand, the web server 300 according to an embodiment of the present invention can communicate with the first user terminal 100 and the second user terminal 200 through a communication network, the first user terminal 100 and the second The user terminal 200 may provide a predetermined font design interface, such as a glyph creator and a glyph editor. For example, a web page including a user interface (UI) that enables font design may be provided. The first user terminal 100 and the second user terminal 200 may display a web page provided by the web server 300 through a web browser. The function of the first user terminal 100 described above, that is, the extraction of the font data and the conversion into the QR code through the first user terminal 100 may be performed by the web server 300.

In addition, according to an embodiment of the present invention, a predetermined program for extracting data of the font may be provided in the web server 300. Accordingly, the extracted font data may be stored in a memory unit of the web server 300 or a different database. The extracted font data is converted into a QR code and stored in the web server 300, and may be provided when a user provides a font.

Hereinafter, the configuration and operation of the first user terminal 100 and the second user terminal 200 according to an embodiment of the present invention will be described.

User terminal

2 is a block diagram illustrating the configuration of the first user terminal 100 and the second user terminal 200 according to an embodiment of the present invention.

Hereinafter, the configuration and operation of the first user terminal 100 and the second user terminal 200 will be described with reference to FIG. 2.

Referring to FIG. 2, the first user terminal 100 may include a font data extractor 110, a QR code generator 120, and a QR code display 130.

Referring to FIG. 2, the second user terminal 200 according to an embodiment may include a QR code decoder 210 and a font storage / editing unit 220.

According to one embodiment of the invention, the font data extraction unit 110, QR code generation unit 120, QR code display unit 130, QR code decoding unit 210, the font storage / editing unit 220 is external It may be a program module or hardware capable of communicating with the device. The program module or hardware may be included in the first user terminal 100 and the second user terminal 200 or another device capable of communicating with the program in the form of an operating system, an application module, and other program modules. It can be stored on a known storage device. Meanwhile, such program modules or hardware may include, but are not limited to, routines, subroutines, programs, objects, components, data structures, etc. that perform particular tasks or execute particular abstract data types described below in accordance with the present invention.

In the present specification, the font data extracting unit 110, the QR code generating unit 120, the QR code display unit 130, the QR code decoding unit 210, and the font storage / editing unit 220 are first user terminals for convenience of description. 100 is described as being divided into the second user terminal 200, the same application is coupled and installed in the first user terminal 100, the second user terminal 200, respectively, font data extraction unit 110 The QR code generation unit 120, the QR code display unit 130, the QR code decoding unit 210, and the font storage / editing unit 220 may perform operations.

3 is a diagram illustrating data constituting a font according to an embodiment of the present invention.

Referring to FIG. 3, the font data extractor 110 may extract data constituting the font from a predetermined font design interface such as a glyph creator and a glyph editor.

A font is a type of library of characters or glyphs that stores letters of various styles and sizes. It is a general term for data about the shape and size of all characters used on a computer.

Referring to FIG. 3, the font data extraction unit 110 according to an embodiment of the present invention is defined by a font designer and may extract XY coordinates of the starting point or the last point constituting the font. The XY coordinates may be data specified by a designer for each character corresponding to a total of 11,172 characters from Korean AC00 to D7A3 corresponding to a Unicode value.

Unicode is a code system that is designed to represent all languages of each country. It is a new concept of code that provides unique code values for each character regardless of the operating system, program, or language being used. Characters are represented by 16 bits, so up to 65,536 characters can be represented.

For example, referring to FIG. 3, in the case of 'ga', starting points a (41, 723) to b (425, 723), c (389, 593), d (364, 397), which are specified by the designer , e (261, 247), f (123, 134), g (43, 87), h (22, 110), i (115, 162), j (251, 281), k (342, 424), l (389,594), m (41,696), n (41, 696), o (666, 794),... , And XY coordinate sequences corresponding to the last points v (666, -115) can be extracted.

In the case of the 'ga' character, the outline of the letter is divided into several parts and is represented by a combination of straight lines, arcs, free curves, etc., not dots, and the inside of the outline is filled when the letters are output. Accordingly, the points specified for extracting the XY coordinate sequence may be intersections of the lines forming the 'ga' rule, both ends of the straight line, or points at which the curvature of the curve is equal to or greater than a predetermined specific value.

 The QR code generation unit 120 may convert the extracted XY coordinate sequence into a QR code. QR code is one of the two-dimensional bar code, overcoming the limitations of the data capacity of the conventional one-dimensional bar code, and placing large amounts of data such as letters, numbers, graphics, and photos in small squares in both horizontal and vertical (x, y) directions. Or a high density coded two-dimensional symbol into a mosaic code, QR code conversion can be performed by a two-dimensional barcode generation program.

4 is a diagram in which the XY coordinate value of the letter 'a' is converted into a QR code according to an embodiment of the present invention, and the XY coordinates of the starting point corresponding to the consonant 'a', that is, a (41, 723) to XY coordinates of the last point, that is, XY coordinates of the starting point corresponding to n (41, 696) and the vowel 'ㅏ', that is, o (666, 794) to XY coordinates of the last point, i.e. v (666, -115 The XY coordinate sequence consisting of) is converted into a QR code.

Referring to FIG. 4, the size of the converted QR code may be the same as the size of the letter 'ga'. In the above manner, the XY coordinate sequence of each character corresponding to a total of 11,172 characters may be converted into a QR code and stored as a TTF (True Type Font).

The font data extraction program and the QR code generation program may be provided by the OS of the first user terminal 100, may be provided by an application installed in the first user terminal 100, and the web server 300. It may be provided from. The converted QR code may be transmitted to the second user terminal 200 and may be stored in the web server 300.

5 is an exemplary diagram in which a specific pixel of the QR code is converted into coordinates according to an embodiment of the present invention. The QR code is composed of cells forming a black-and-white lattice pattern, wherein the specific pixel corresponds to a pixel corresponding to each vertex of a corner of a closed region defined as a black cell.

For example, referring to FIGS. 4 and 5, pixel values corresponding to the vertices of the closed area of the outer rectangular frame and the closed area of the inner rectangular frame defined by the black cells included in ① of FIG. Corresponds to the coordinate value of. Therefore, the pixel value of each cell included in ① is (8, 698), (124,698), (124, 581), (8,581), (24, 681), (107, 681) as shown in ②. And (107, 598), (24, 598), (42, 665), (91, 665), (91, 14), and (41, 598). In this manner, coordinate transformation corresponding to pixel values of each cell included in the remaining data area may be performed.

According to an embodiment of the present invention, the QR code may be stored in the first user terminal 100, the second user terminal 200, or the web server 300 in the form of coordinate data converted in this manner.

Accordingly, the coordinates can be converted into vectors according to the user's request for zooming in or zooming out. Since a vector is a physical quantity having a size and a direction, it is possible to enlarge or reduce a transformed coordinate value corresponding to a pixel according to the zoom-in or zoom-out request. Can be.

According to an embodiment, when the QR code is recognized in the future, letters having the same size as the corresponding QR code are expressed, but when the QR code zoom-in request is requested, the QR code is zoomed in through a magnification conversion of a coordinate sequence corresponding to the specific pixels. And a font of the same size as the zoomed-in QR code may be displayed. Therefore, with the text data for one size, it is possible to freely process the text size, tilt, angle, etc. by adjusting the coordinate values according to the calculation of the formula.

When the user requests the web server 300 to provide a font, the QR code display unit 130 displays a QR code corresponding to each Unicode value stored in the TTF on the screen of the first user terminal 100. Can be output to For example, if the TTF is installed and 'ga' is entered in the editor area in the APP, it is output as a QR code. In addition, it is possible to simultaneously output QR codes corresponding to the entire Unicode values.

However, the method of providing the QR code may be not only in the format displayed on the first user terminal 100 but also in the form of printed matter. The printed matter may include a predetermined output such as a brochure, a pamphlet, a booklet, and the like.

The QR code decoding unit 210 is a reader of the second user terminal 200 to scan QR codes scanned by a predetermined QR code scanning device (for example, a scanning unit including an imaging device such as a camera, not shown). You can scan using the function. The QR code reader may be provided by the web server 300 as the QR code dedicated viewer, but is not limited thereto and may be provided by the second user terminal 200 itself. Can be.

The QR code decryption unit 210 may provide the converted coordinate sequence corresponding to the pixels of the QR code by decoding the encrypted QR code through the scanning device, through which the original font data, ie, XY The original text represented by the coordinate sequence may be provided.

The font storage / editing unit 220 may allow the second user terminal 200 to use the font by storing the TTF in a library. In addition, the specific pixels of the QR code included in the TTF are provided with coordinate transformations to enable scale up / down of letters. Since this is as described above, the description thereof will be omitted here.

The font data may be edited or modified, and when editing of the font is completed, the process of converting and editing the edited new font data into a QR code is the same as described above. Let's do it.

Embodiments according to the present invention described above may be implemented in the form of program instructions that may be executed by various computer components, and may be recorded in a computer-readable recording medium. The computer-readable recording medium may include program instructions, data files, data structures, etc. alone or in combination. Program instructions recorded on the computer-readable recording medium may be those specially designed and configured for the present invention, or may be known and available to those skilled in the computer software arts. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tape, optical recording media such as CD-ROMs, DVDs, and magneto-optical media such as floptical disks. media), and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device may be configured to operate as one or more software modules to perform the process according to the invention, and vice versa.

Although the present invention has been described by specific embodiments such as specific components and the like, but the embodiments and the drawings are provided to assist in a more general understanding of the present invention, the present invention is not limited to the above embodiments. For those skilled in the art, various modifications and variations can be made from these descriptions.

Therefore, the spirit of the present invention should not be limited to the embodiments described above, and all of the equivalents or equivalents of the claims, as well as the claims below, are included in the scope of the spirit of the present invention. I will say.

100: first user terminal
200: second user terminal
300: web server
110: font design UI provider
110: font data extraction unit
120: QR code generator
130: QR code display unit
210: QR code decryption unit
220: font storage / editing unit

Claims (6)

A method for providing a secure font to a user based on a QR code by a user terminal,
Extracting, by the user terminal, XY coordinates of each of the plurality of points constituting a specific font; And
Converting, by the user terminal, an XY coordinate sequence consisting of the XY coordinates of the plurality of points into a QR code,
The QR code-based secure font providing method, wherein the XY coordinates are defined by a font designer.
The method of claim 1,
And converting and storing the plurality of pixels included in the QR code into coordinates, respectively.
The method of claim 2,
If the QR code is scanned by a dedicated viewer, further comprising the step of converting the coordinates of the plurality of pixels to a font, QR code based secure font providing method.
The method of claim 3,
According to a zoom in or zoom out command input by a user, further comprising the step of vector-translating the coordinates of the plurality of pixels, so that the size of the font is adjusted, QR code based secure font providing method.
As an application coupled to the user terminal to provide a secure font based on the QR code,
Extracting XY coordinates of each of a plurality of points defined by a font designer and constituting a specific font;
And store in the user terminal to execute the step of converting an XY coordinate sequence consisting of the XY coordinates of the plurality of points into a QR code.
A user terminal providing a secure font based on a QR code,
A font data extraction unit defined by a font designer and extracting XY coordinates of each of a plurality of points constituting a specific font;
A QR code generation unit for converting an XY coordinate sequence consisting of XY coordinates of the plurality of points into a QR code; And
And a storage unit for storing the QR code in a TTF (True Type Font).

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