JPH0744118U - Hidden code - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] A barcode symbol that is substantially transparent to the print medium is configured to make it difficult to identify with the naked eye, and without sacrificing the appearance or value of the product. We provide a hidden code that can prevent problems such as forgery and misuse by copying. [Structure] Using a special ink that cannot be discerned by the naked eye but a reflectance can be read by a bar code reader, for example, an ink containing an ultraviolet absorber, a parallel bar 2 of several widths is formed on a printing medium 1 having a high reflectance. OCR-B letter 3
A bar code symbol, and marks 4 and 5 and angle brackets for indicating the display area of the parallel bar 2 with visible ink are provided in the margins provided on both sides of the bar code symbol. To do.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a hidden code relating to a unit identification display bar code for use in a distribution information system centering on a POS system.

[0002]

[Prior art]

 The conventional bar code symbol is a bar code consisting of white and black parallel bars of several kinds of width, margins on both sides and OCR-B type characters (see JIS X9001 “Glyphs for optical character recognition”). And was printed on the medium in a visible state.

[0003]

[Problems to be solved by the device]

 As described above, the conventional bar code symbol has various problems such that the code can be decoded by the naked eye, it is forged by hand, it is copied and abused, and the appearance and value of the product are damaged. Therefore, the object of the present invention is a hidden code which is substantially invisible to the naked eye with respect to a print medium, and thereby does not impair the appearance and value of the product even when it is directly printed on the product, and can be forged by handwriting. It is to provide hidden code that can prevent problems such as abuse by duplication.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, it is not possible to identify with the naked eye, but using a special ink that can read the reflectance with a bar code reader, for example, an ink containing a UV absorber with a low reflectance, a parallel bar is printed on a printing medium with a high reflectance. And OCR-B characters form a bar code symbol, and the margins on both sides of the bar code are marked with a visible ink to indicate the code display area and angle brackets. Suru

[0005]

[Action]

 According to the present invention, the bar code on the print medium cannot be identified with the naked eye, but the bar code reader can read the bar code between the marks and the brackets provided on the margins on both sides.

[0006]

【Example】

 In FIG. 1, reference numeral 1 denotes a print medium having a high reflectance, but printing that satisfies the reflectance, the reflection density, or the PCS value (the amount defined to measure the optical characteristics of the printed figure) is possible. Any medium may be used. The bar code 2 and the OCR-B font 3 printed on the medium 1 are substantially transparent, and the bar code 2 is composed of parallel bars of low reflectivity due to several widths. The barcode 2 and the OCR-B letter 3 are invisible to the naked eye, but are printed using a special ink capable of reading the reflectance with a barcode reader, for example, an ink containing an ultraviolet absorber. When the printing medium 1 is colored, an ink colored in the same color as the printing medium 1 may be used. In addition, the printing of the barcode symbol composed of the barcode 2 and the OCR-B letter 3 can be performed directly by an ink jet printer according to the type of the medium 1 or the number of prints, screen printing, or other known methods. It can be printed by a printing means. Marks 4 and 5 and angle brackets 6, 7, 8 and 9 are provided on the margins provided on both sides of the barcode 2 with visible ink to clarify the display area of the barcode 2. When detecting the barcode 2, the barcode 2 that is placed between the marks 4 and 5 and the angle brackets 6, 7, 8 and 9 is detected by the barcode reader that reacts to the ultraviolet absorption region of the ultraviolet absorbent of the printing ink. Can be read.

[0007]

[Effect of device]

 As described above, the bar code symbol print medium according to the present invention has a substantially transparent hidden code printed by the ink containing at least the ultraviolet absorber, so that the appearance of the medium is impaired. Never be Therefore, it is possible to directly print on the product as a medium, and it is difficult to visually decipher and observe the printed bar code symbol, so it is difficult to forge by handwriting or abuse by duplication. There is an effect that can be prevented.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a cover coat according to the present invention.

FIG. 2 is a view showing the positions of marks and brackets according to the present invention.

[Explanation of symbols]

 1 Print medium 2 Bar code 3 OCR-B-shaped character 4 Mark for starting point for bar code detection 5 Mark for ending point for bar code detection 6 Start bracket for bar code printing 7 Start bracket for bar code printing 8 Bar code printing Ending brackets 9 Ending brackets for barcode printing

Claims (1)

[Scope of utility model registration request] 1. A parallel bar having a low reflectance with a special ink which is invisible to the naked eye and OCR-on a printing medium having a high reflectance.
A hidden code in which a bar code symbol is made up of B-shaped characters, and a mark indicating the display area and angle brackets are provided in the margins on both sides with visible ink.