Barcode Knowledge

QR codes—those familiar elements of everyday life—play an important role when we use Alipay to make payments, add friends on WeChat, or unlock a shared bike. Billions of people around the world intera......

Code 39 and Code 93 have the same character set, both supporting digits 0-9, 26 uppercase English letters A-Z, and eight special characters including space: A, B, C, D, E, F, G, H, I, J, K, L, M, N, O......

We know that each character of Code 39 barcode is composed of 5 bars and 4 spaces, a total of 9 elements, and each character accounts for 12 equal parts (module), as shown in the following figure for ......

What is Code 39 barcode? Code 39 (also known as Code 3 of 9) is a barcode system invented by Intermec Corporation (acquired by Honeywell in 2013) in 1974. It is a distributed barcode that can be scann......

1949 Bernard Siliver 和 N. J. Woodland registered the first machine-readable barcode: the "bullseye code". 1951 Dr. David Sheppard developed the first practical Optical Character Recognition (OCR) read......

Barcode technology emerged alongside the advancement and application of computers and information technology. It is a new type of technology that integrates encoding, printing, recognition, data colle......

1. Barcode Overview Norman Joseph Woodland from USA came up with the idea of the barcode in 1948, but it took another five years for his project to materialise. In recent years, with the continuous po......

What is a barcode? A barcode is a machine-readable representation of data that consists of a series of parallel bars and spaces. It is used to store information that can be quickly scanned and interpr......