KR102167107B1 - A device for identifying duplicated copy and an object adopting the device - Google Patents

Abstract

It is not a conventional simple form, but an invention related to a copy identification device that makes it difficult to forgery the original itself, but is not identified by the naked eye in the original but appears only at the time of copying. The copy identification apparatus according to the present invention includes a disappearance portion that disappears during copying and a manifestation portion that appears during copying. Both the protruding part and the disappearing part applied to the original look the same with the naked eye, and the size is small and the composition is complicated to the extent that it is difficult to identify. Even if the original to which the copy identification device of the present invention is applied is observed with the naked eye, such a prominent part and a lost part cannot be recognized, and only when the original is copied, the outstanding part appears and the lost part disappears, so that the copy can be identified.

Description

{A device for identifying duplicated copy and an object adopting the device}

The present invention relates to a copy identification device that is invisible in the original but appears when copying the original so that it is possible to identify whether it is a copy, and to an article to which the copy identification device is applied.

Due to the improved performance of the copier, it has become easier to forge money and public documents by copying them with a copier. Conventionally, in order to prevent such a forgery act using a copy machine, a counterfeit prevention technology has been disclosed in which, when an original is copied, contents that were printed invisibly on the original appear (see Korean Patent Registration 10-0788877).

The general principle of this technique is to print the background pattern and the latent image pattern with thin lines that are hard to see with the naked eye when printing the original. When this original is copied with a copier, the latent image pattern part disappears and only the background pattern part remains as the thin lines forming the latent image pattern are not properly reproduced due to the performance of the copier (sensitivity, resolution, etc.). Appears in. In other words, only the background pattern is properly copied.

However, in the case of this technology, the composition of the background pattern and the latent image pattern is simple, so that the latent image can be visually identified in the original, and on the contrary, the latent image pattern may not be clearly displayed in the copy. In addition, the types of latent image patterns that can be used are too limited and childish because the latent image patterns appearing in the copies can only be composed of simple figures or characters.

In addition, the form of the background pattern and the latent image pattern of the original are simple, so it cannot cope with the forgery of the original by printing the original without permission. This method was a meaningful technology at the time of filing of the prior patent in June 2007, since it was necessary to print the latent image pattern on the original with a line width of 0.0001 inches or less in the prior patent, but nowadays the development of printing technology and printing apparatus As a result, printing of a latent image pattern with this line width can be easily implemented. Therefore, there is no difficulty in manufacturing the paper itself, and it is not possible to prevent the forgery of the original.

Korean patent registration 10-0788877 (announcement date December 27, 2007)

In order to solve the above-described problem, it is an object of the present invention to provide a copy identification device and a product to which this device is applied, which is not in a simple form in the prior art, but is difficult to forgery of the original, but is not identified with the naked eye, but appears only at the time of copying. I want to provide.

A copy identification apparatus according to the present invention for solving the above problem includes a disappearance portion disappearing during copying (for example, copying by an optical copier) and a manifestation portion appearing during copying. The protruding portion and the vanishing portion applied to the original (e.g., paper) (e.g., printed) are both identical to the naked eye and are difficult to identify (e.g., in terms of brightness or saturation or color). It is small in size and complex in configuration. Even if the original to which the copy identification device of the present invention is applied is observed with the naked eye, such a prominent part and a lost part cannot be recognized, and only when the original is copied, the outstanding part appears and the lost part disappears, so that the copy can be identified.

When the original is made in the form of a specific character or figure (e.g.,'No Copy','Copy','×', etc.), the outstanding part will appear in the copy as a latent image in the form of letters and figures ( In the so-called positive method), if the disappearance part is constructed in the form of a specific character or figure inside the saliency area when the original is manufactured, the disappearance part is lost on the background of the saliency part at the time of copying and will appear as a latent image in the form of intaglio ( The so-called negative method).

The protruding portion may be composed of a plurality of thick lines arranged in parallel and a plurality of large dots arranged in two dimensions in the longitudinal and transverse directions. The vanishing portion may be composed of a plurality of thin lines arranged in parallel as a line thinner than the thick line, and a plurality of small dots having a diameter smaller than that of the large point and arranged in the vertical and transverse directions.

The thick line and the large dot forming the bulging part are each thicker and larger in diameter than the thin line and the small dot forming the disappearing part, so they appear during copying, and the thin lines and small dots are not reproduced during copying and are lost. However, the size and arrangement direction and angle of the thick line, large point, thin line, and small point should be designed so that the thick line and the large point are also not clearly recognized by the naked eye in the original (this will be described later through examples. ).

The configuration and operation of the present invention introduced above will become more apparent through specific embodiments described with reference to the drawings.

According to the present invention, since the configuration of the copy identification device is complicated by the combination of the outstanding part and the disappearing part, it becomes difficult to forge the copy identification device in the original, and various and complicated designs of the shape of the latent image displayed in the copy are made. It becomes possible. In addition, the morphological heterogeneity in a region in which the bulging part and the evanescent part in the original are in contact with each other is greatly reduced by the configuration of the bulging and disappearing parts and the size and arrangement angle of each component unique to the present invention.

1 is an embodiment of a copy identification device of the present invention
Figure 2 is another embodiment of the copy identification device of the present invention
3 is an exemplary diagram in which the copy identification device of the present invention is applied to an original

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to the embodiments described in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms different from each other, only this embodiment makes the disclosure of the present invention complete, and those skilled in the art to which the present invention pertains. It is provided to fully inform the scope of the invention to the person, and the invention is defined by the description of the claims.

On the other hand, terms used in the present specification are for explaining examples and are not intended to limit the present invention. In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used herein, "comprises" or "comprising" refers to the presence of one or more other components, steps, actions and/or elements other than the recited elements, steps, actions and/or elements, or Does not rule out addition.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In adding reference numerals to elements of each drawing, even though they are indicated on different drawings, the same elements are assigned the same reference numerals as much as possible, and in describing the present invention, a detailed description of related known configurations or functions If the gist of the present invention may be obscured, a detailed description thereof will be omitted.

A configuration of a representative embodiment of the copy identification device proposed by the present invention will be described.

An embodiment of a copy identification device including a escaping portion 10 and a missing portion 20 will be described with reference to FIG. 1. The bulging portion 10 and the vanishing portion 20 of FIG. 1 are enlarged and expressed for convenience of explanation, and are actually very fine and difficult to distinguish with the naked eye.

In the embodiment of FIG. 1, a number of the thick lines 110 of the hanging portion 10 are arranged in parallel in the horizontal direction, and the thin lines 210 of the vanishing portion 20 are two strands in one set, unlike the thick line 110. Thus, a plurality of jaws are arranged in parallel in the horizontal direction. Depending on the embodiment, the thin line 210 may be connected to each thick line 110 and branched into two strands. In addition, according to another embodiment, the thin wire 210 may be arranged in a set of two or more strands.

Here, the meaning of the horizontal direction is relative, meaning that the reference line is the same direction as the reference line when it is set in the horizontal direction. Therefore, in FIGS. 1 and 2, the horizontal direction means the horizontal direction, but if the reference is set to the vertical direction, the horizontal direction will be the vertical direction.

The thickness of each thin line 210 is less than about 1/2 times the thickness of the thick line 110. Therefore, as shown in FIG. 1, although one strand of the thick line 110 is one set and two strands of the thin line 210 are one set, the original looks almost the same brightness (or saturation or color) from the naked eye. . However, when copying is performed, only the thick line 110 appears and the thin line 210 disappears without being copied due to the limit of the resolution of the copier. Moreover, due to the nature of the copier, the copied thick line 110 is expressed thicker because the toner melts and is fixed on the paper at high temperature and high pressure. Therefore, the part with the thin line 210 disappears when copying, and the part with the thick line 110 appears darker, so that the character or figure of the convex part 10 as a whole is embossed latent image or the disappearance part 20 during copying. ) Characters or figures appear as intaglio latent images.

In addition, in FIG. 1, a region in which the large points 120 of the bulging portion 10 are arranged and a region in which the small points 220 of the vanishing portion 20 are arranged are shown. And looking at the density of the large point 120 and the small point 220 constituting each area, the density of the small point 220 is higher than that of the large point 120. Therefore, if the original is printed so as to form characters or figures with small dots 220 within or adjacent to the large dots 120, the density of the small dots 220 is higher than the density of the large dots 120, so although the large dots Even if the diameter (diameter) of 120 is larger, the brightness (or saturation or hue) of the large point 120 and the small point 220 appears to the naked eye. However, when copying is performed, only the large point 120 is copied and displayed, and the small point 220 is not copied but is lost due to the limit of the resolution of the copier. Therefore, since the small dot 220 area disappears during copying and the large dot 120 area appears darker, the entire character or figure appears as a latent image when copying. (The opposite is the case, that is, when printing is made on the original so that large dots 120 form characters or figures.)

The thickness and line spacing of the thick line 110 of the bulging portion 10 and the thin line 210 of the vanishing portion 20 shown in FIG. 1, and the large point 120 and the vanishing portion 20 of the bulging portion 10 Dimensions such as diameter, spacing, and arrangement direction of the small points 220 will be described.

In the present invention, considerations in configuring a certain shape or pattern with a thick line 110, a thin line 210, a large point 120, and a small point 220 are as follows. As shown in FIG. 1, the process of printing the outstanding part 10 and the disappearing part 20 on the original may be performed as a post-process during the original manufacturing process. As in the present invention, the outstanding part and the disappearing part including a line pattern and a dot pattern When printing on the original together, this heterogeneous shape is visually identified in the original due to the heterogeneous pattern shape of the line pattern and the dot pattern, in particular, the adjacent areas of the line pattern and the dot pattern (for example, the 130 and 230 marks in Fig. 1). The configuration and dimensions of the pattern must be considered so that it does not occur.

In consideration of the above, a number of originals were produced and a test was performed through comparison of copies, and the pattern configuration and numerical values as shown in FIG. 1 were determined.

In FIG. 1, the thickness of the thick line 110 of the protruding portion 10 is set to about 0.055 mm, the interval between the thick lines 110 is about 0.5 mm, and the thickness of the thin line 210 of the vanishing portion 20 is about 0.022mm, the spacing between the fine lines 210 was set to about 0.0825mm.

In addition, the diameter of the large point 120 of the protruding portion 10 is about 1.6 mm, and the diameter of the small point 220 of the disappearing portion 20 is set to about 0.4 mm. The large points 120 and the small points 220 are arranged at the same distance in the vertical and horizontal directions, and the distance between the large points 120 is about 2.7 mm, respectively, in the vertical and horizontal directions, and the distance between the small points 220 is vertical, Each of the transverse directions was set at about 0.8 mm. The important thing is that the arrangement angle of the large point 120 of the protruding portion 10 and the arrangement angle of the small point 220 of the disappearing portion 20 are different. As shown in Fig. 1, the large point 120 is in the horizontal direction in a diagonal direction of about +15° with respect to the horizontal line (that is, in the vertical direction by 15° upwards with respect to the horizontal line) It is arranged in a diagonal direction of -75° (i.e., at an angle of 75° downward from the horizontal line). Therefore, it may be defined as "the horizontal arrangement angle of the large dots 120 is about 15° with respect to the horizontal line" (since the arrangement intervals in the vertical and lateral directions are the same, it is not necessary to include the vertical arrangement angle in the definition. none). On the other hand, the arrangement angle of the small points 220 is opposite to the arrangement angle of the large points 120. That is, the small point 220 is in the horizontal direction in a diagonal direction of about -15° with respect to the horizontal line (that is, in the horizontal direction by 15° diagonally downward), and in the vertical direction, it is about +75 with respect to the horizontal line. It is arranged in an oblique direction of ° (i.e., at an angle of 75° upward from the horizontal line). Therefore, it may be defined as "the arrangement angle of the small points 220 is about -15° with respect to the horizontal line".

2 shows another embodiment of a copy identification device. As shown in Fig. 1, the bulging portion 10' and the vanishing portion 20' are each composed of a thick line 110' and a large point 120', a thin line 210', and a small point 220'. Although similar, the thick lines 110 ′ of the protruding portions 10 ′ are not arranged horizontally in parallel, but are arranged in parallel in the diagonal direction. The large point 120 ′ of the protruding portion 10 ′ is the same as that of FIG. 1. In addition, each two strands of the thin lines 210' of the vanishing portion 20' are horizontally arranged in parallel. The small point 220' of the vanishing part 20' is the same as that of FIG. 1.

Here, the meaning of the oblique direction means that when the reference line is set in the horizontal or vertical direction, it is a direction that is oblique at a certain angle with respect to the reference line. Please compare with the case of FIG.

In FIG. 2, the thick line 110 ′ of the protruding portion 10 ′ is arranged in a diagonal direction at an angle of about 15° with respect to the horizontal line. The interval between the thick lines 110 ′ is about 0.5 mm, and the thickness of the thick lines 110 ′ is about 0.055 mm, which is the same as the embodiment of FIG. 1. These arrangement directions and values are the small point of the area 15 and the vanishing portion 20' where the thick line 110 ′ and the large point 120 ′ of the protruding portion 10 ′ are in contact with each other in the embodiment of FIG. 2. 220') and the thin line 210' are in contact with each other in the area 25 where the dot pattern and the line pattern are in contact, so this is to minimize a sense of difference in the original and the copy.

In the embodiment of Fig. 2, the thick lines 110' arranged in diagonal lines of the protruding portion 10' and the small points 220' of the disappearing portion 20' cooperate to show a latent wound, and the protruding portion 10' It is different from the embodiment of FIG. 1 in that the large dots 120 ′ of and the parallelly arranged thin lines 210 ′ of the vanishing part 20 ′ cooperate to represent a latent image. In the embodiment of FIG. 1, the thick lines 110 arranged in parallel arrangement of the suspension portion 10 and the thin lines 210 arranged in parallel arrangement of the disappearance portion 20 cooperate to show a latent wound, and the large point of the suspension portion 10 ( 120) and the small points 220 of the disappearance part 20 cooperated to show a latent wound.

As described above, according to the present invention, since the configuration of the copy identification device becomes complicated by the combination of the outstanding portions 10, 10' and the disappearing portions 20, 20', it is difficult to forge the copy identification device in the original. It is possible to design various and complex shapes of latent images displayed in copies. In addition, the morphological heterogeneity in a region in which the bulging part and the evanescent part in the original are in contact with each other is greatly reduced by the configuration of the bulging and disappearing parts and the size and arrangement angle of each component unique to the present invention.

An example of a method of printing the copy identification device described above on an original will be described with reference to FIG. 3. In FIG. 3, the original paper 30 is divided into several areas to identify copies including the outstanding part 10 and the missing part 20 of the embodiment of FIG. 1 or 2 in each divided area 40a to f. An example of printing the device is shown. Each of the divided areas 40a to f may be printed so that both the outstanding portion 10 and the disappearing portion 20 of the above-described copy identification device are included. In another embodiment, only the outstanding portion 10 is printed in one divided area and only the disappearing portion 20 is printed in the other divided area, so that two or more divided areas may be gathered to form a copy identification device.

The process of printing the protruding portion 10 and the disappearing portion 20 on the original may be performed as a post-process during the original manufacturing process. In the original, since it must be difficult to identify the visible portion 10 and the disappearing portion 20 with the naked eye, a high-resolution output plate was required, and a 4,800 dpi (dot per inch) printer was used, which is the minimum resolution currently possible.

However, only one embodiment in which the original is divided into six regions is shown in FIG. 3, and the technical idea of the present invention is not limited thereto. For example, it is possible to randomly print a copy identification device including the protruding portion 10 and the vanishing portion 20 over the front surface of the paper 30, and only at a specific location (e.g., the center or the corner in place). Small scale copy identification devices can be printed. In addition, the original to which the copy identification device is applied includes various paper products such as postcards, stickers, colored paper, cardboard, etc., as well as general office and copy paper, and various objects (eg, metal, synthetic resin, wood, glass, electronic board, semiconductor wafer). Etc.) may be included. In addition, other than the method of printing the copy identification device on the original, other methods (eg, adhesion, corrosion, engraving, molding, deposition, etc.) are possible.

In the above, the configuration of the present invention has been described in detail through a preferred embodiment of the present invention, but those of ordinary skill in the art to which the present invention pertains, the present invention is disclosed in the present specification without changing the technical spirit or essential features. It will be appreciated that it may be implemented in a specific form different from that of. It should be understood that the embodiments described above are illustrative in all respects and not limiting. The scope of protection of the present invention is determined by the claims described later rather than the detailed description, and all changes or modifications derived from the scope of the claims and their equivalent concepts should be interpreted as being included in the technical scope of the present invention. .

Recessed portion (10), vanishing portion (20), hanging portion (10'), vanishing portion (20'), thick line (110), thin line (210), large point (120), small point (220), line The adjacent areas 130 and 230 of the pattern and the dot pattern, the thick line 110 ′, the large dot 120 ′, the thin line 210 ′, the small dot 220 ′, the area where the thick line and the large dot of the protruding part meet ( 15), the area where small points and fine lines of the vanishing part are in contact

Claims (8)

As a copy identification device that is applied to the original and enables identification of a copy that is not the original, including the disappearing part and the outstanding part that disappear when copying the original,
The protruding portion includes a plurality of thick lines in which a plurality of rows are horizontally arranged in parallel with one strand as a set, and a plurality of large points arranged in a first density in a vertical and transverse direction,
The vanishing portion is a line that is thinner than the thick line of the hanging portion, and a plurality of thin wires in which a plurality of strings are horizontally arranged in parallel with at least two strands as one set, and a second having a diameter smaller than the large point of the hanging portion and having a greater than the first density Including a number of small dots arranged in the longitudinal and transverse directions in density,
The horizontal parallel arrangement thick lines of the bulge portion and the horizontal parallel arrangement thin lines of the disappearance portion cooperate to form a latent image,
A copy identification device in which large dots of the bulging part and small dots of the disappearing part cooperate to form a latent image. As a copy identification device that is applied to the original and enables identification of a copy that is not the original, including the disappearing part and the outstanding part that disappear when copying the original,
The protruding portion includes a plurality of thick lines arranged in parallel in a diagonal direction, and a plurality of large points arranged in a first density in a vertical and transverse direction,
The vanishing portion is a line that is thinner than the thick line of the hanging portion, and a plurality of thin wires in which a plurality of strings are horizontally arranged in parallel with at least two strands as one set, and a second having a diameter smaller than the large point of the hanging portion and having a greater than the first density Including a number of small dots arranged in the longitudinal and transverse directions in density,
A copy identification device configured to form a latent image by cooperating with thick lines arranged diagonally parallel to the bulging portion and small points of the disappearing portion, and forming a latent image by cooperating with the large dots of the bulging portion and horizontally parallel arranged thin lines of the disappearing portion. delete In claim 1 or 2,
The thickness of the thick line of the protruding part is 0.055 mm, the distance between the thick lines is 0.5 mm, the diameter of the large point is 1.6 mm, the distance between the large points is 2.7 mm in vertical and horizontal directions, respectively,
The thickness of the thin line of the disappearance portion is 0.022 mm, the distance between the thin lines is 0.0825 mm, the diameter of the small point is 0.4 mm, the distance between the small points is a copy identification device of 0.8 mm, respectively in the vertical and horizontal directions. In claim 1 or 2, the arrangement angle of the large point of the escaping portion and the arrangement angle of the small point of the disappearance portion are different,
The horizontal arrangement angle of the large dots is 15° based on the horizontal line,
A copy identification device whose horizontal arrangement angle of the small dots is -15° with respect to the horizontal line. In paragraph 2,
The thick lines of the protruding portion are arranged in parallel in a diagonal direction at an angle of 15° with respect to the horizontal line,
The thin lines of the disappearance portion are arranged in parallel in the same direction as the horizontal line. Articles to which the copy identification device of paragraph 1 or 2 is applied. Paper on which the copy identification device of claim 1 or 2 is printed.

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