JPH02259892A - Square code generator with parity - Google Patents

Abstract

PURPOSE:To make printing accuracy generous and to prevent an error from being caused by dirt, etc., by adopting a square code for which a parity is provided. CONSTITUTION:A figure or a character inputted from a keyboard 1 is recognized by the pattern of 8 bits in a square code processor 2 with parity and the square code with parity is generated. Each time the code is generated, the figure or character inputted to a display 3 and the generated square code with parity are displayed and confirmed by an operator. The square code to be generated is composed of 9 squares and the parts of numbers 1-8 are data parts. Then, the part of a number 9 is a parity part and either the odd-number parity or even-number parity can be made correspondent by being designated in advance. Thus, in comparison with a bar code, the printing accuracy is made extremely generous and the recognition can be easily executed. Then, even a reading miss caused by the dirt, etc., can be easily detected.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a square code generator with parity that prints information regarding products and prices on packaging materials, etc., and is read at supermarket cash registers.

[Conventional technology]

Conventionally, in order to obtain price and product information by attaching a barcode to a product, there is a method in which a barcode J is included in a "striped pattern" or a code is created by filling in any of the four squares.

[Problem to be solved by the invention]

The conventional “barcode” mentioned above can be placed in a limited narrow area.
The drawback is that it requires strict printing accuracy because it prints in a "striped pattern."

In addition, the above-mentioned drawback of the code based on the method of filling in four squares can be solved because it only distinguishes whether the squares are white or black, but there is no check mechanism in case of dirt, etc., so reading errors may occur. It has the disadvantage of being easy.

Furthermore, since only 16 combinations can be made in the four squares, there is also the drawback that only limited codes such as numbers can be used.

[Means to solve the problem]

The structure of the square code generation device with parity of the present invention includes a keyboard device for inputting numbers or characters to be converted into a square code with parity, and a keyboard device that recognizes the input numbers or characters to generate a square code with parity. a processing device that generates the code; a display device that displays the input numbers or characters and the generated grid code with parity;
and a label printer device that prints the generated grid code with parity.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention, and the square code generation device with parity according to this embodiment includes a keyboard device 1 for inputting numbers or characters to be converted into a square code, and a keyboard device 1 for inputting numbers or characters to be converted into a square code, and a keyboard device 1 for inputting numbers or characters to be converted into a square code, a square code with parity processing device 2 that recognizes the square code with parity and generates a square code with parity, a display device 3 that displays input numbers or characters and the generated square code with parity, and a square code with parity. and a label printer device 4 for printing on a label.

The generated square code with parity consists of nine squares as shown in FIG. 2(a), numbers 1 to 8 are data parts, and number 9 is a parity part.

There are two types of parity: odd parity and even parity, but either parity can be specified by specifying it in advance.

For example, in the case of odd parity, as shown in Figure 2(b), if the total number of blacked out parts among numbers 1 to 8 is an odd number, number 9 will remain white; For example, by filling in the number 9 with black, numbers 1 to 9
Adjust so that the total number of black squares in is an odd number.

To give a specific example, the letter “A” in the JIS 8 and dot code.
has a bit array of 01000001, so each bit is assigned numbers 1 to 8 in order from the left, 0 is white and 1 is filled in black, and since there are two black parts, number 9 with odd parity is A square code with parity is generated by filling the part with black. Other "B" and "A" are similarly converted.

An example of creating a label of a square code with parity using this apparatus will be explained with reference to FIG.

When the process starts, first, the input buffer and code generation buffer are cleared as a preparatory process for inputting numbers or letters manually, and then numbers or letters are input from the keyboard device 1.

The input numbers or characters are recognized in an 8-bit pattern by the parity-equipped grid code processing device 2, and a parity-equipped grid code is generated as explained in FIG.

Each time a square code with parity is generated, the input numbers or characters and the generated square code with parity are displayed on the display device 3 for the operator to confirm. After inputting the string of numbers or letters, the label printer 4 prints a square code with parity on the label.

When the required number of sheets have been printed, the next number or character string is processed, and the process ends when there are no more numbers or character strings to process.

This nine-square code requires much less precision to print than a barcode, and can be easily converted into a bit representation of a byte.

It is easy to recognize because it has a large apparent area in a limited space. Because it has 9 squares, it can express 256 different types of codes, but it is also expandable as it can express numbers, alphabets, kana, special symbols, and even kanji by combining two. To be there.

It is characterized by the fact that it does not necessarily have to be a square grid, but can be rectangular as long as it can be recognized by the reading device.

〔Effect of the invention〕

As explained above, by using square codes, the present invention can make printing accuracy much more relaxed than that of barcodes, and by creating parity for each square code. This has the effect of easily detecting reading errors due to dirt, dirt, etc., and preventing errors.

In addition, compared to 4 squares, 9 squares have 256 combinations, so not only numbers, but also alphabets, special symbols, and kana can be expressed, and by lining up two squares, it is also possible to express kanji. It has the effect of becoming.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an apparatus according to an embodiment of the present invention, FIG. 2 is a diagram showing the configuration of a grid code with parity and an example of its specific encoding, and FIG. 3 is a block diagram showing the structure of a grid code with parity. 3 is a flowchart of code label creation processing. 1...Keyboard device for inputting numbers or characters,
2... Processing device for generating grid code with parity, 3.
...Display device that displays numbers or characters and the generated grid code with parity, 4...Label plate that prints the grid code with parity on the label 1"9".
11. , Yokahara.

Claims (1)

[Claims] A keyboard device for inputting numbers or characters to be converted into a square code with parity, a processing device for recognizing the input numbers or characters and generating a square code with parity, and the input numbers or characters. and a display device that displays the generated grid code with parity, and a label printer device that prints the generated grid code with parity.