JPH11221989A - Sheet with bar code - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet with bar codes for reading correct bar code information by a specified bar code reader while bringing unlegibility or the erroneous read of the bar code information in a duplicate by the bar reader to prevent the unfair use of a copy of the bar code information. SOLUTION: A sheet 1 with bar codes is provided with a car code information 3 on the given section of a sheet surface, and dummy bars 4 are provided continuously in the scanning direction of the bar code information 3, and the dummy bars 4 are not sensed by a given bar code reader, while they are sensed together with a bar code information by the bar code reader in a duplicate of the sheet 1 with the bar codes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet provided with bar code information, and more particularly, to a method in which a bar code information in a copy of the sheet may be optically unreadable or erroneously read. It relates to a sheet with a bar code to be made.

[0002]

2. Description of the Related Art Sheets provided with barcode information are:
At present, with the progress of POS system and FA, it is widely used in various fields such as manufacturing, distribution, and sales management. However, recently, there has been a problem that barcode information, which has become extremely useful as an information storage medium, is duplicated by a copying machine and is illegally used, and an example thereof will be described below.

[0003] For example, an institution that provides contract services such as insurance and finance issues a certificate sheet describing the contents exchanged with a contract customer to the customer side, and a clerk visits each customer periodically. When you receive your monthly contract fee,
In many cases, a fee is collected by issuing a receipt based on the information described in the certificate form. According to the information, optical machine readable barcode information is provided. At the time of collection of fees, operations such as reading barcode information and inputting information on collection fees, issuing a receipt and inputting information to the database of the management department side, improve the efficiency of work. Is now available.

[0004] However, in such a system in which the continuation of the contract on the customer side is confirmed only by reading the bar code information, there has been a problem that information is incorrectly input such as an increase in the number of contractors by a clerk. In other words, in order to achieve the target such as the number of contractors, the contracted certificate paper is copied, the information of the barred person is incorrectly input from the barcode information in the copy, and the number of contractors is inflated. Has occurred.

[0005]

Therefore, according to the present invention, bar code information in a sheet with a regular bar code is
While it can be read by a predetermined barcode reader, barcode information in the copy is unreadable or erroneously read by the barcode reader, thereby preventing unauthorized use of the barcode information by copying. The purpose is to provide sheets with barcodes.

[0006]

Means for Solving the Problems The present inventors have found that a regular barcode-attached sheet is not detected by a predetermined barcode reader, but is detected in a copy so that the barcode information is linked in the scanning direction. It has been found that such a problem can be achieved by applying a dummy bar to the present invention, and the present invention has been conceived.

That is, the sheet with a barcode according to the present invention is provided with barcode information in a predetermined portion of the sheet surface, and further provided with a dummy bar so as to be continuous in the scanning direction of the barcode information. The dummy bar is not detected by a predetermined bar code reader, but is detected together with the bar code information by the bar code reader in a copy of the bar-coded sheet.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a sheet with a bar code according to the present invention will be described in detail with reference to examples. In the accompanying drawings, FIG. 1 is a plan view of a sheet with a barcode of the present invention, FIG. 2 is an enlarged plan view of the area around the barcode information in FIG. 1, FIG. 4) a), b),
(C) is an explanatory diagram of various patterns of the dummy bar in the present invention.

The bar-coded sheet 1 according to the present embodiment is used as an "insurance certificate". As shown in FIG. 1, variable information relating to the name of the contractor, the date of the contract, the contents of the contract, and the like is displayed on the surface thereof. An information description section 2 for display is provided, and bar code information 3 is provided at a corner of the surface of the information description section 2 in which the variable information applied to the information description section 2 is coded for optical and mechanical reading. ing. Although not shown, fixed information such as a contract is printed on the back side.

The most characteristic feature of the bar-coded sheet 1 of the present invention is that the dummy bar 4 is provided so as to be continuous in the scanning direction of the bar code information 3 as shown in FIGS. is there. In this embodiment, the dummy bar 4 is provided at the rear end of the barcode information 3. However, the present invention is not limited to this. As shown in FIG. side,
B) Inside the bar code information or c) A plurality of bar code information may be provided.

In the present embodiment, the bar code information 3 contains black ink and has a P value corresponding to a reading wavelength of 660 nm.
A CS value is printed at 96%, and a dummy bar 4 having a PCS value of 64% with respect to a reading wavelength of 660 nm is printed on the rear end side with a red-brown ink. In this configuration, the barcode reader 3 having a reading wavelength of 660 nm can read the barcode information 3 on the barcode-attached sheet 1 without any problem. However, in the copy, the copied barcode information and the dummy bar are visually merged. At the same time it looks like
Even the above-mentioned bar code reader could not read at all.

That is, the dummy bar according to the present invention means that in a sheet with a regular bar code, only a bar code information is properly read by a predetermined bar code reader so that it can be optically read by its light wavelength. Even if the copy is obtained by adjusting the copier so that the bar code information can be read properly while dropping out, the bar code information in the copy is optically read by the bar code reader. Is performed, the color, the reflectance, the reflection density, and the PCS value which are detected together with the barcode information and cause unreadable or erroneous reading are set as appropriate.

For example, the reading wavelength of a bar code reader is usually 600 to 700 nm, and the PCS value of bar code information for a predetermined reading wavelength in this range is 7 nm.
5% or more, the dummy bar has a P.D.
CS value is less than 75% and the copy is PCS
The printing conditions are specified so that the value is 75% or more.

[0014]

As described above, according to the sheet with a barcode of the present invention, a sheet with a regular barcode is not detected by a predetermined barcode reader, but it is detected by a barcode reader in a copy. By providing a dummy bar that is detected by the display on the bar code information display portion, the illegal use of the bar code information by copying can be prevented.

[Brief description of the drawings]

FIG. 1 is a plan view of a bar-coded sheet according to the present invention.

FIG. 2 is an enlarged plan view of an area around barcode information in FIG. 1;

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is an explanatory diagram of various patterns of a dummy bar according to the present invention.

[Explanation of symbols]

 1 sheet with barcode 2 information entry section 3 barcode information 4 dummy bar

Claims (1)

[Claims] 1. A bar-code-equipped sheet in which bar code information is provided on a predetermined portion of a sheet surface, and a dummy bar is provided so as to be continuous in a scanning direction of the bar code information. A bar-coded sheet which is not detected by the bar-code reader, but is detected together with the bar-code information by the bar-code reader in a copy of the bar-coded sheet.