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2. QR code - Wikipedia

   en.wikipedia.org/wiki/QR_code

   The QR code system was invented in 1994, at the Denso Wave automotive products company, in Japan. The initial alternating-square design presented by the team of researchers, headed by Masahiro Hara, was influenced by the black counters and the white counters played on a Go board; the pattern of position detection was found and determined by applying the least-used ratio (1:1:3:1:1) in black ...

3. PDF417 - Wikipedia

   en.wikipedia.org/wiki/PDF417

   PDF417 is a stacked linear barcode format used in a variety of applications such as transport, identification cards, and inventory management. "PDF" stands for Portable Data File. The "417" signifies that each pattern in the code consists of 4 bars and spaces in a pattern that is 17 units (modules) long.

4. Masahiro Hara - Wikipedia

   en.wikipedia.org/wiki/Masahiro_Hara

   Nationality. Japanese. Alma mater. Hosei University. Known for. Inventing the QR code. Awards. European Inventor Award. Masahiro Hara ( Japanese: 原 昌宏, Hepburn: Hara Masahiro, born 1957) is a Japanese engineer and Hosei University graduate who is best known for inventing the QR code in 1994.

5. Extended Channel Interpretation - Wikipedia

   en.wikipedia.org/wiki/Extended_Channel...

   Extended Channel Interpretation. Extended Channel Interpretation (ECI) is an extension to the communication protocol that is used to transmit data from a bar code reader to a host when a bar code symbol is scanned. It enables the application software to receive additional information about the intended interpretation of the message contained ...

6. Rectangular Micro QR Code - Wikipedia

   en.wikipedia.org/wiki/Rectangular_Micro_QR_Code

   Rectangular Micro QR Code (also known as rMQR Code) is two-dimensional (2D) matrix barcode invented and standardized in 2022 by Denso Wave as ISO/IEC 23941. [2] rMQR Code is designed as a rectangular variation of QR code and has the same parameters and applications as original QR code.

7. Barcode - Wikipedia

   en.wikipedia.org/wiki/Barcode

   Barcode. A UPC-A barcode. A barcode or bar code is a method of representing data in a visual, machine-readable form. Initially, barcodes represented data by varying the widths, spacings and sizes of parallel lines. These barcodes, now commonly referred to as linear or one-dimensional (1D), can be scanned by special optical scanners, called ...