JPS63197290A - Bar code reader - Google Patents

Abstract

PURPOSE:To simplify the interface with a high-order device by comparing the information whether it is a multistage bar code preliminarily stored in a storing means with the deciding information provided to the read bar code and when the result is decided as the multistage information, reading the result as the multistage information. CONSTITUTION:Flag information 20-22 stored preliminarily in a CMOS memory 6 and stored the information representing the type of multi-step bar code such as a two-step bar code or a three-step bar code are compared with the contents of bar codes 11b-11d read from a commodity 10, and when both the information coincide, the bar codes 11b-11d are decided to be the multistage bar codes the bar codes 11b-11d are read as the multistage bar codes. Thus an interface part 4 interfaces with a high-order device 20 requires only one direction to simplify the part 4, then the multistage bar codes are read.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a barcode reading device, and particularly to a barcode reading device for a POS system (point of sale system) that reads barcodes and inputs data in the industrial field that involves the exchange of money. Relating to a reading device.

”Ita Kaoru Conventionally, this type of barcode reader is an input device that only inputs data; ) was common.

In such conventional barcode reading devices, the interface with the host device is one-way, so in order to read multi-stage barcodes, the host device notifies the barcode combination information of the multi-stage barcode. However, there is a drawback in that an interface with a host device must be able to transmit the barcode combination information in both directions.

The present invention has been made to overcome the above-mentioned drawbacks of the conventional barcodes, and provides a barcode that simplifies the interface with a host device and can read multi-stage barcodes. The purpose is to provide a reading device.

Structure of the Invention A barcode reading device according to the present invention reads a barcode to which determination information as to whether or not it is a multi-stage barcode is provided,
A barcode reading device that sends the read information to a higher-level device, comprising a storage means in which the determination information is stored in advance, the determination information given to the barcode, and the determination information stored in the storage means. and a determination means for determining whether or not the barcode is the multi-stage barcode, and when the determination means determines that the determination information is the multi-stage barcode, the barcode is replaced with the multi-stage barcode. It is characterized by being read as .

1 凰3 Next, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic diagram showing the configuration of an embodiment of the present invention. In the figure, a barcode reading device 1 according to an embodiment of the present invention includes a barcode reading section 2 that reads a barcode 11 of a product 10, a barcode recognition section 3, and a host device 20.
an interface unit 4 for transmitting data to the barcode reading device @1, a central processing unit (hereinafter referred to as CPU) 5 that controls the entire barcode reading device @1, and a non-volatile 0MO8 (Seamos) that stores combination information of multistage barcodes. memory 6 and
It is composed of a CMOS memory 6 and a battery 7.

FIG. 2 is a diagram showing an example of a barcode 11 for registering multi-stage barcode combination information in an embodiment of the present invention. In the figure, the combination registration barcode 11a is the combination information of a multi-stage barcode, for example, a two-stage barcode or a three-stage barcode.
Information that enables reading of multi-stage barcodes such as multi-stage barcodes is stored. Barcode 11b-11
flag information 20 to 22 (flag information 20 to 2) each used for the product 10 and storing information representing the type of multi-stage barcode such as a two-stage barcode or a three-stage barcode;
2 or less indicates the information content of each barcode.

The operation of an embodiment of the present invention will be explained using FIG. 1 and FIG. 2.

First, before reading the barcode 11 attached to the product 10, the barcode reader 2 reads the combination registration barcode 11a prepared in advance, and then the barcodes 11b to 11d to be actually used are read. Then, the read contents are stored in the CMOS memory 6.

For example, if it is desired to be able to read a three-stage barcode, flag information Ifii20-22 is generally set in the two flag digits in the barcodes 111)-11d. Further, information indicating that the three-stage barcode can be read is stored in the combination registration barcode 11a.

After the barcode reader 2 reads the information that the three-stage barcode stored in the combination registration barcode 11a can be read, the barcodes 11b to 11d are read.
is read and flag information 20 to 22 are stored in the CMOS memory 6.

Next, when the barcode reading unit 2 actually reads the barcodes 11b to 11d attached to the product 10, the CPU 5
It is determined that the barcodes 11b to 11 (1) of the flag information 20 to 22 of this product 10 are stored in the CMOS memory 6, that is, the barcode 11 of this product 10 is determined to be a multi-stage barcode, This barcode 1
It is determined that there are two barcodes 11 to be read in addition to 1.

Based on this determination, the barcode reading section 2 reads the three-stage barcode 11 and sends the contents of the read barcode 11 to the host device 20 via the interface section 4.

In this way, the flag information 20 to 22 stored in advance in the CMOS memory 6 and containing information representing the type of multi-stage barcode such as a two-stage barcode or a three-stage barcode, and the bar code read from the product 10 are stored in the CMOS memory 6 in advance. Compare the contents of codes 11b to 11d, and if they match, this barcode 11b to 1
1d is determined to be a multi-stage barcode, and barcodes 11b~
11d as a multi-stage barcode, the interface section 4 with the host device 20 only needs to be connected in one direction, and the interface section 4 can be simplified to read multi-stage barcodes.

Note that in one embodiment of the present invention, the nonvolatile CMOS memory 6
However, an EEP-ROM may also be used, and a read-only memory may be used to store information in advance to enable reading of multi-stage barcodes and information indicating the type of multi-stage barcodes. However, it is not limited to these.

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, the determination information on whether or not the barcode is a multi-stage barcode stored in advance in the storage means is compared with the determination information given to the read barcode. By reading the barcode as a multi-stage barcode when it is determined that the barcode is a code, it is possible to simplify the interface with the host device and read the multi-stage barcode.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a diagram showing an example of a barcode for registering multi-stage barcode combination information in an embodiment of the present invention. Explanation of symbols of main parts 2...Barcode reading section 3...Barcode recognition section 4...Interface section 5...Central processing unit (CPU) 6...
CMOS memory

Claims (1)

[Claims] A barcode reading device that reads a barcode provided with determination information as to whether or not it is a multi-stage barcode and sends the read information to a host device, the barcode reading device comprising: a storage means in which the determination information is stored in advance; and the barcode. and determining means for comparing the determination information given to the barcode with the determination information stored in the storage means to determine whether or not the barcode is the multi-stage barcode; A barcode reading device characterized in that when it is determined that the barcode is a multi-stage barcode, the barcode is read as the multi-stage barcode.