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== History ==
The QR code system was invented in 1994, at the [[Denso#DENSO Wave|Denso Wave]] automotive products company in Japan.<ref name="qrcode_Rakib">{{Cite web|title=QRコード開発｜テクノロジー｜デンソーウェーブ|trans-title=QR code development|url=https://www.denso-wave.com/ja/technology/vol1.html|access-date=2021-10-26|website=[[Denso|Denso Wave]]|language=ja|archive-date=26 October 2021|archive-url=https://web.archive.org/web/20211026134836/https://www.denso-wave.com/ja/technology/vol1.html|url-status=live}}</ref><ref>{{cite web|url=https://www3.nhk.or.jp/nhkworld/en/ondemand/video/2072031/|title=2D Barcodes|date=2020-03-26|publisher=[[NHK World-Japan]]|access-date=7 April 2020|archive-date=7 April 2020|archive-url=https://web.archive.org/web/20200407181035/https://www3.nhk.or.jp/nhkworld/en/ondemand/video/2072031/|url-status=live}}</ref><ref>{{Cite news|date=2021-11-09|title=From Japanese Auto Parts to Ubiquity: A Look at the History of QR Codes|work=Mainichi Daily News|url=https://mainichi.jp/english/articles/20211109/p2a/00m/0bu/024000c|access-date=2021-11-11|archive-date=11 November 2021|archive-url=https://web.archive.org/web/20211111014403/https://mainichi.jp/english/articles/20211109/p2a/00m/0bu/024000c|url-status=live}}</ref> 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 equipment#Board|Go board]];<ref>{{cite web|url=https://www.nippon.com/en/news/fnn20191214001/the-little-known-story-of-the-birth-of-the-qr-code.html|title=The Little-Known Story of the Birth of the QR Code|date=2020-02-10|url-status=dead|archive-url=https://web.archive.org/web/20200304140056/https://www.nippon.com/en/news/fnn20191214001/the-little-known-story-of-the-birth-of-the-qr-code.html|archive-date=2020-03-04}}</ref> the pattern of the position detection markers was determined by finding the least-used sequence of alternating black-white areas on printed matter, which was found to be (1:1:3:1:1).<ref name="qrcode_history">{{cite web|url=https://www.qrcode.com/en/history/|title=History of QR Code|access-date=2023-04-30|website=[[Denso|Denso Wave]]}}</ref><ref name="qrcode_Rakib" /> The functional purpose of the QR code system was to facilitate keeping track of the types and numbers of automobile parts, by replacing individually-scanned bar-code labels on each box of auto parts with a single label that contained the data of each label. The quadrangular configuration of the QR code system consolidated the data of the various bar-code labels with ''[[kanji]]'', ''[[kana]]'', and alphanumeric codes printed onto a single label.<ref name="Handbook of Augmented Reality">{{cite book |title=Handbook of Augmented Reality |first=Borko |last=Furht |url=https://books.google.com/books?id=fG8JUdrScsYC&q=Handbook%20of%20Augmented%20Reality&pg=PA341 |page=341 |publisher=Springer |year=2011 |isbn=9781461400646 |url-status=live |archive-url=https://web.archive.org/web/20161221020446/https://books.google.com/books?id=fG8JUdrScsYC&lpg=PP1&dq=Handbook%20of%20Augmented%20Reality&pg=PA341 |archive-date=21 December 2016}}</ref><ref name="qrcode_history"/><ref name="qrcode_Rakib" />
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