Aztec Code

Encoding: "This is an example Aztec symbol for Wikipedia."

The Aztec Code is a matrix code invented by Andrew Longacre, Jr. and Robert Hussey in 1995.^[1] The code was published by AIM, Inc. in 1997. Although the Aztec Code was patented, that patent was officially made public domain.^[2] The Aztec Code is also published as ISO/IEC 24778:2024 standard. Named after the resemblance of the central finder pattern to an Aztec pyramid, Aztec Code has the potential to use less space than other matrix barcodes because it does not require a surrounding blank "quiet zone".

^ *US 5591956, Longacre, Jr., Andrew & Hussey, Robert, "Two Dimensional Data Encoding Structure and Symbology for use with Optical Readers", published 1997-01-07
^ Official Gazette. United States Patent Office. 17 June 1997. Hereby dedicates to the public the entire term of said patent. Click "images" then "correction" to see the dedication to the public domain.

[1] *US 5591956, Longacre, Jr., Andrew & Hussey, Robert, "Two Dimensional Data Encoding Structure and Symbology for use with Optical Readers", published 1997-01-07

[Dedication-2] Official Gazette. United States Patent Office. 17 June 1997. Hereby dedicates to the public the entire term of said patent. Click "images" then "correction" to see the dedication to the public domain.

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