A barcode encoding method capable of optical and magnetic reading

Abstract

The invention discloses a photo-magnetically readable barcode coding method. According to the method, bars, spaces, coding bits, coding characters, a guiding 0 area and an ending 0 area are defined; equi-wide coding bits formed by bars and spaces are taken as basic coding elements; the adjacent coding bits follow a rule that the connections of adjacent coding bits do not share same bars or spaces; every 5 coding bits are arranged in parallel to form one coding character; a plurality of coding characters are arranged in parallel to form a serial of number column; and the guiding 0 area, beginning characters, check characters, ending characters and the ending 0 area are added to form a whole barcode. According to the coding scheme, the barcode is compact in structure, weakly magnetic blank printing ink is used for printing, the existing optical barcode reading equipment is capable of reading the barcode through adding a matched decryption algorithm, and the existing magnetic stripe reading equipment is capable of reading the barcode through modifying the amplification circuit parameters, so that the low-cost barcode reading in most cases can be satisfied. The barcode is not only suitable for optical reading, but also suitable for weakly magnetic reading, and has an anti-counterfeiting ability.

Description

technical field

[0001] The invention relates to the field of anti-counterfeiting, in particular to an optical-magnetic readable barcode encoding method. Background technique

[0002] The coding graphics arranged side by side by bars and spaces according to certain rules are endowed with certain numerical meanings to form a complete barcode. Bar codes form a variety of codes due to different bar space definitions and coding rules. Commonly used codes in the world include EAN barcode, UPC barcode, 25 barcode, 39 barcode and 128 barcode.

[0003] The above-mentioned code system is based on the unit bar and the unit space as the minimum code bit. The difference is that the number of coded characters is different and the proportion of the bar code bit and the space code bit in the character is not the same. The barcode formed in this way can be processed by optical principles Scan and decode. Because the basic principle of magnetic sensor reading is to obtain information throu...

Examples

Embodiment Construction

[0069] The specific implementation manner of the present invention will be described below with reference to the accompanying drawings and examples.

[0070] The present invention is a barcode encoding method designed for optical and weak magnetic reading. The existing optical barcode equipment only needs to increase the decoding algorithm, and the existing magnetic strip reading equipment only needs to adjust the AD sampling amplification parameters and increase the decoding algorithm. According to the original scanning method of the device, the same encoding value can be obtained.

[0071] Such as figure 1 , In the embodiment of the present invention, a barcode encoding method that can be read by optical and magnetic means has four types of encoding bits, the left bar is empty on the right, the left bar is empty on the right, the left and right equal-width bars are empty in the middle, and completely empty. Define the left bar, right space and left space and right bar as lo...

technical field

[0001] The invention relates to the field of anti-counterfeiting, in particular to an optical-magnetic readable barcode encoding method. Background technique

[0002] The coding graphics arranged side by side by bars and spaces according to certain rules are endowed with certain numerical meanings to form a complete barcode. Bar codes form a variety of codes due to different bar space definitions and coding rules. Commonly used codes in the world include EAN barcode, UPC barcode, 25 barcode, 39 barcode and 128 barcode.

[0003] The above-mentioned code system is based on the unit bar and the unit space as the minimum code bit. The difference is that the number of coded characters is different and the proportion of the bar code bit and the space code bit in the character is not the same. The barcode formed in this way can be processed by optical principles Scan and decode. Because the basic principle of magnetic sensor reading is to obtain information throu...

Examples

Embodiment Construction

[0069] The specific implementation manner of the present invention will be described below with reference to the accompanying drawings and examples.

[0070] The present invention is a barcode encoding method designed for optical and weak magnetic reading. The existing optical barcode equipment only needs to increase the decoding algorithm, and the existing magnetic strip reading equipment only needs to adjust the AD sampling amplification parameters and increase the decoding algorithm. According to the original scanning method of the device, the same encoding value can be obtained.

[0071] Such as figure 1 , In the embodiment of the present invention, a barcode encoding method that can be read by optical and magnetic means has four types of encoding bits, the left bar is empty on the right, the left bar is empty on the right, the left and right equal-width bars are empty in the middle, and completely empty. Define the left bar, right space and left space and right bar as lo...

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