QR code
[[Ladawan:QR code for mobile English Wikipedia.svg|thumb|Sarong QR code para sa [[URL]] kan pangenot na pahina [[Wikipedyang Ingles|kan Wikipedia Mobile sa Ingles]]]]
An '''QR code''' ( '''quick-response code''' ) <ref>{{cite interview|last=Hara|first=Masahiro|subject-link=Masahiro Hara|interviewer-last=Muller|interviewer-first=Derek|interviewer-link=Derek Muller|title=I used to hate QR codes. But they're actually genius|date=1 October 2024|at=34:09|url=https://www.youtube.com/watch?v=w5ebcowAJD8&t=2049|access-date=1 October 2024|quote=The biggest feature of QR codes is that they can be read quickly. It's called Quick Response because it reacts quickly.}}</ref> sarong klase nin [[Plane (mathematics)|duwang-dimensyonal]] [[Barcode#Matrix (2D) codes|na matrix barcode]], na naimbento kan 1994, kan kompanyang [[Hapon]] [[Denso#Denso Wave|na Denso Wave]] para sa pagmarka nin mga parte nin awto.  <ref>{{Cite journal|title=Adaptive Binarization of QR Code Images for Fast Automatic Sorting in Warehouse Systems}}</ref><ref>{{Cite journal|last1=Chen|first1=Rongjun|last2=Yu|first2=Yongxing|last3=Xu|first3=Xiansheng|last4=Wang|first4=Leijun|last5=Zhao|first5=Huimin|last6=Tan|first6=Hong-Zhou|date=2019-12-11|title=Adaptive Binarization of QR Code Images for Fast Automatic Sorting in Warehouse Systems|journal=Sensors|language=en|volume=19|issue=24|pages=5466|doi=10.3390/s19245466|pmc=6960674|pmid=31835866|bibcode=2019Senso..19.5466C|doi-access=free}}</ref> Ini nagtatampok nin mga itom na kwadrado sa sarong puting background na may [[Fiducial markers|mga fiducial markers]], na mababasa kan mga imaging device arog kan mga kamera, asin napoproseso gamit an [[Reed–Solomon error correction|Reed-Solomon error correction]] sagkod na an imahe maiinterpretar nin tama. An kinakaipuhan na datos dangan kinukua gikan sa mga pattern na yaon sa parehong horizontal asin vertical na mga sangkap kan QR na imahe. <ref name="autogenerated12">{{cite web|url=http://www.nacs.org/LinkClick.aspx?fileticket=D1FpVAvvJuo%3D&tabid=1426&mid=4802|title=QR Code Essentials|publisher=Denso ADC|year=2011|access-date=12 March 2013|url-status=live|archive-url=https://web.archive.org/web/20130512180619/http://www.nacs.org/LinkClick.aspx?fileticket=D1FpVAvvJuo%3d&tabid=1426&mid=4802|archive-date=12 May 2013}}</ref>

Mantang an barcode sarong optical na imahe na mababasa kan makina na igwa nin impormasyon na espesipiko sa may tatak na bagay, an QR code igwa nin datos para sa sarong locator, sarong identifier, asin web-tracking. Tanganing maibugtak an datos nin episyente, an mga QR code naggagamit nin apat na standardized na paagi nin pag-encode:

: (1) [[Bilang|numero]] ,
: (2) [[Alphanumericals|alphanumeric]] ,
: (3) [[Byte pair encoding|byte]] o [[Binary number|binary]], asin
: (4) [[kanji]] . <ref name="QRCodefeatures2">{{cite web|url=http://www.qrcode.com/en/qrfeature.html|title=QR Code features|publisher=Denso-Wave|access-date=3 October 2011|archive-url=https://web.archive.org/web/20130129064920/http://www.qrcode.com/en/qrfeature.html|archive-date=2013-01-29}}</ref>

Kun ikukumpara sa mga pamantayan [[Universal Product Code|na UPC barcode]], an sistema nin QR labeling pig-aplikar sa luwas kan industriya nin awto huli sa mas marikas na pagbasa kan optical image asin mas dakulang kapasidad sa pagtipig nin datos sa mga aplikasyon arog kan pagsubaybay kan produkto, pagmidbid kan bagay, pagsubaybay sa oras, pamamahala nin dokumento, asin pankagabsan na pagmemerkado. <ref name="autogenerated122">{{cite web|url=http://www.nacs.org/LinkClick.aspx?fileticket=D1FpVAvvJuo%3D&tabid=1426&mid=4802|title=QR Code Essentials|publisher=Denso ADC|year=2011|access-date=12 March 2013|url-status=live|archive-url=https://web.archive.org/web/20130512180619/http://www.nacs.org/LinkClick.aspx?fileticket=D1FpVAvvJuo%3d&tabid=1426&mid=4802|archive-date=12 May 2013}}</ref>

== Kasaysayan ==


An sistema nin QR code naimbento kan 1994, sa [[Denso#Denso Wave|Denso Wave]] automotive products company, sa Hapon. <ref name="qrcode_Rakib2">{{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|language=en|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> An enot na disenyo nin alternating-square na iprinesentar kan grupo nin mga parasiyasat, na pinangenotan ni [[Masahiro Hara]], naimpluwensiyahan kan mga itom na counter asin kan mga puting counter na pigtutugtog sa sarong [[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> an pattern kan mga marker nin pagdetektar nin posisyon nadeterminaran sa paagi nin paghanap kan pinakadiit na ginamit na pagkasunod-sunod kan mga nagsasalin-salin na itom-puti na mga lugar sa nakaimprentang bagay, na nakuang (1:1:3:1:1). <ref name="qrcode_history2">{{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_Rakib2" /> An katuyuhan kan sistema nin QR code iyo na mapadali an pagsubaybay kan mga klase asin bilang kan mga parte kan awto, sa paagi nin pagsalida nin mga indibidwal na pig-scan na mga tatak nin bar-code sa lambang kahon nin mga parte nin awto na may sarong tatak na igwa kan datos kan lambang tatak. An quadrangular na pagsasaayos kan sistema nin QR code pinagsararo an datos kan manlaen-laen na mga bar-code label na may Kanji, [[Kana]], asin alphanumeric codes na nakaimprenta sa sarong label. <ref name="Handbook of Augmented Reality2">{{cite book|url=https://books.google.com/books?id=fG8JUdrScsYC&q=Handbook%20of%20Augmented%20Reality&pg=PA341|title=Handbook of Augmented Reality|author=Borko Furht|publisher=Springer|year=2011|isbn=9781461400646|page=341|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|url-status=live}}</ref> <ref name="qrcode_history2" /> <ref name="qrcode_Rakib2" />

== Pag-ampon ==
<gallery>
Ladawan:How QR codes are created.jpg|An mga QR code pwedeng maipahiling sa mga edipisyo, arog kan saro na ini na pigpipinta sa [[Cape Town]] .
</gallery>As of 2024,[update] QR codes are used in a much broader context, including both commercial tracking applications and convenience-oriented applications aimed at mobile phone users (termed mobile tagging). QR codes may be used to display text to the user, to open a [[Web page|webpage]] on the user's device, to add a [[vCard]] contact to the user's device, to open a [[Uniform Resource Identifier]] (URI), to connect to a wireless network, or to compose an email or text message. There are a great many QR code generators available as software or as online tools that are either free or require a paid subscription.<ref>{{cite web|url=http://www.dummies.com/business/marketing/social-media-marketing/how-to-use-the-top-qr-code-generators/|title=How to Use the Top QR Code Generators|website=Dummies.com|author=Joe Waters|access-date=5 June 2017|url-status=live|archive-url=https://web.archive.org/web/20170911162047/http://www.dummies.com/business/marketing/social-media-marketing/how-to-use-the-top-qr-code-generators/|archive-date=11 September 2017}}</ref> The QR code has become one of the most-used types of two-dimensional code.<ref name="About2DCode2">{{cite web|url=http://www.qrcode.com/en/about/|title=QR Code—About 2D Code|publisher=Denso-Wave|access-date=27 May 2016|url-status=live|archive-url=https://web.archive.org/web/20160605013533/http://www.qrcode.com/en//about/|archive-date=5 June 2016}}</ref>

Kan Hunyo 2011, 14 milyones na mga Amerikanong paragamit nin mobile an nag-scan nin QR code o barcode. Mga 58% kan mga paragamit na idto an nag-scan nin QR o barcode hale sa saindang mga harong, mantang 39% an nag-scan hale sa mga tindahan; 53% kan 14 milyones na paragamit mga lalaki na nasa edad na 18 asin 34. <ref>{{cite web|url=http://www.internetretailing.net/2011/08/14m-americans-scanned-qr-and-bar-codes-with-their-mobiles-in-june-2011/|title=14m Americans scanned QR and bar codes with their mobiles in June 2011|date=16 August 2011|access-date=27 May 2016|archive-url=https://web.archive.org/web/20160405065521/http://internetretailing.net/2011/08/14m-americans-scanned-qr-and-bar-codes-with-their-mobiles-in-june-2011/|archive-date=5 April 2016|url-status=dead}}</ref>

Kan 2022, 89 milyones katawo sa [[Estados Unidos]] an nag-scan nin QR code gamit an saindang mga mobile device, na mas halangkaw nin 26 porsyento kumpara sa 2020. An mayoriya kan mga paragamit nin QR code ginagamit ini tanganing [[Payment|magbayad]] o tanganing ma-access an impormasyon kan produkto asin [[menu]] . <ref>{{Cite web|title=Mobile QR scanner usage in the U.S. 2025|url=https://www.statista.com/statistics/1297768/us-smartphone-users-qr-scanner/|access-date=2023-12-24|website=Statista|language=en}}</ref>

Kan Setyembre 2020, sarong surbey an nakadiskobre na 18.8 porsyento kan mga konsumidor sa Estados Unidos asin sa [[Reyno Unido|Reino Unido]] an marigon na uminoyon na nariparo ninda an paglangkaw kan paggamit nin QR code poon kan an mga restriksyon na may relasyon sa [[COVID-19]] na aktibong kaidto nagpoon pirang bulan bago kaini. <ref>{{cite web|url=https://www.statista.com/statistics/199328/qr-code-scanners-by-age/|title=U.S. and UK increase of QR code use 2020|date=6 July 2021|access-date=13 August 2021|archive-date=14 August 2021|archive-url=https://web.archive.org/web/20210814001532/https://www.statista.com/statistics/199328/qr-code-scanners-by-age/|url-status=live}}</ref>

== Mga Gamit ==
<gallery>
Ladawan:Japan-qr-code-billboard.jpg|Sarong QR code na ginamit sa sarong dakulang billboard sa Hapon, na nagkokonektar sa website kan sagasou.mobi
</gallery>An mga QR code nagin nang komun sa mga advertising kan mga konsumidor. Sa parati, an sarong [[smartphone]] ginagamit bilang sarong QR code scanner, na nagpapahiling kan kodigo asin pigkokombertir ini sa sarong kapaki-pakinabang na porma (arog kan sarong pamantayan [[URL|na URL]] para sa sarong website, sa siring nalilikayan an pangangaipo para sa sarong paragamit na i-type ini sa sarong [[Web browser]] ).

An QR code nagin nang pokus kan estratehiya sa advertising, nin huli ta ini nagtatao nin paagi tanganing mas marikas na ma-access an website kan sarong tatak kisa sa mano-manong paglaog nin sarong URL. <ref>{{cite web|url=http://www.mobilemarketer.com/cms/news/software-technology/11930.html|title=Starbucks promotes coffee blend via QR codes|url-status=live|date=23 January 2012|author=Rimma Kats|access-date=26 May 2016|archive-url=https://web.archive.org/web/20160603190211/http://www.mobilemarketer.com/cms/news/software-technology/11930.html|archive-date=3 June 2016}}</ref> <ref>{{cite news|url=https://vancouversun.com/news/staff-blogs/tescos-cool-qr-code-advertising-campaign|title=Tesco's cool QR code advertising campaign|date=4 January 2012|author=Jenny Lee|newspaper=Vancouversun|access-date=26 May 2016|url-status=live|archive-url=https://web.archive.org/web/20160603022242/http://vancouversun.com/news/staff-blogs/tescos-cool-qr-code-advertising-campaign|archive-date=3 June 2016}}</ref> Lampas pa sa kaginhawahan sana sa konsumidor, an importansya kan kakayahan na ini iyo na ini nagpapalangkaw kan [[conversion rate]] : an tsansa na an pakikipag-ulay sa advertisement magigin sarong benta. Ini nag-aakit sa mga interesadong prospekto sa mas hababa pa sa [[Conversion funnel|funnel nin pagkombertir]] na may kadikit na pagkaatraso o paghihingoa, na dinadara an paradalan sa website kan paraanunsyo tulos, mantang an mas halawig asin mas target na sales pitch pwedeng mawaran kan interes kan paradalan.

=== Pagbayad sa QR code ===
An mga QR code pwedeng gamiton sa pagtipig nin impormasyon sa bank account o impormasyon sa credit card, o pwede ining partikularmenteng dinisenyo tanganing magtrabaho sa partikular na mga aplikasyon nin paratao nin pagbayad. Igwa nin nagkapirang mga aplikasyon sa pagprobar kan mga pagbayad sa QR code sa bilog na kinaban. <ref>{{cite web|url=http://mashable.com/2011/10/12/scvngr-levelup-redo/|title=SCVNGR Unveils QR Code Payment System|website=[[Mashable]]|date=12 October 2011|url-status=live|archive-url=https://web.archive.org/web/20121208114335/http://mashable.com/2011/10/12/scvngr-levelup-redo/|archive-date=8 December 2012}}</ref> <ref>{{cite news|url=http://gigaom.com/2012/01/26/mastercard-starts-piloting-qkr-mobile-payment-app/|title=MasterCard starts piloting QkR mobile payment app|newspaper=Gigaom|url-status=live|archive-url=https://web.archive.org/web/20140108210253/http://gigaom.com/2012/01/26/mastercard-starts-piloting-qkr-mobile-payment-app/|archive-date=8 January 2014|date=2012-01-26|last1=Kim|first1=Ryan|accessdate=2025-01-12|archivedate=2014-01-08|archiveurl=https://web.archive.org/web/20140108210253/http://gigaom.com/2012/01/26/mastercard-starts-piloting-qkr-mobile-payment-app/}}</ref> Sa mga nagpoprogreso pa sanang nasyon kabali an Tsina, <ref>{{Cite web|url=https://www.businessinsider.com/alipay-wechat-pay-china-mobile-payments-street-vendors-musicians-2018-5|title=One photo shows that China is already in a cashless future|last=Jacobs|first=Harrison|website=Business Insider|access-date=2019-10-14|archive-date=5 May 2019|archive-url=https://web.archive.org/web/20190505225750/https://www.businessinsider.com/alipay-wechat-pay-china-mobile-payments-street-vendors-musicians-2018-5|url-status=live}}</ref> <ref>{{Cite news|url=https://www.nytimes.com/2017/07/16/business/china-cash-smartphone-payments.html|title=In Urban China, Cash Is Rapidly Becoming Obsolete|last=Mozur|first=Paul|date=2017-07-16|work=The New York Times|access-date=2019-10-14|language=en-US|issn=0362-4331|archive-date=21 October 2019|archive-url=https://web.archive.org/web/20191021234322/https://www.nytimes.com/2017/07/16/business/china-cash-smartphone-payments.html|url-status=live}}</ref> India <ref>{{Cite web|title=Paying With Your Mobile Wallet To Get Simpler With Interoperable QR Codes|url=https://www.moneycontrol.com/news/business/personal-finance/paying-with-your-mobile-wallet-to-get-simpler-with-interoperable-qr-codes-6026991.html|access-date=2020-12-22|website=Moneycontrol|date=28 October 2020|archive-date=1 November 2020|archive-url=https://web.archive.org/web/20201101054850/https://www.moneycontrol.com/news/business/personal-finance/paying-with-your-mobile-wallet-to-get-simpler-with-interoperable-qr-codes-6026991.html|url-status=live}}</ref> an pagbayad sa QR code sarong popular asin kombenyenteng marhay na paagi nin pagbayad. Poon kan [[Alipay|an Alipay]] nagdisenyo nin paagi nin pagbayad sa QR code kan 2011, <ref>{{Cite web|title=A Hangzhou Story: The Development of China's Mobile Payment Revolution|url=https://lkyspp.nus.edu.sg/docs/default-source/case-studies/a-hangzhou-story.pdf?sfvrsn=2bb6690a_2|access-date=23 June 2020|archive-date=26 June 2020|archive-url=https://web.archive.org/web/20200626064851/https://lkyspp.nus.edu.sg/docs/default-source/case-studies/a-hangzhou-story.pdf?sfvrsn=2bb6690a_2|url-status=live}}</ref> an pagbayad sa mobile marikas na inadaptar sa Tsina. Kan 2018, mga 83% kan gabos na pagbayad an ginibo sa paagi nin mobile payment. <ref>{{Cite web|title=Payment methods in China: How China became a mobile-first nation|url=https://daxueconsulting.com/payment-methods-in-china/|access-date=2020-06-23|website=daxueconsulting.com|archive-date=29 June 2020|archive-url=https://web.archive.org/web/20200629103810/https://daxueconsulting.com/payment-methods-in-china/|url-status=live}}</ref>

Kan Nobyembre 2012, an mga pagbayad sa QR code pig-deploy sa mas dakulang eskala sa [[Tsekya|Czech Republic]] kan an sarong bukas na format para sa pagbalyo nin impormasyon sa pagbayad – sarong [[Short Payment Descriptor]] – pig-introdusir asin pig-endorso kan [[Czech Banking Association]] bilang an opisyal na lokal na solusyon para sa mga pagbayad sa QR. <ref>{{cite web|url=https://www.czech-ba.cz/aktivity/standardy/format-pro-sdileni-platebnich-udaju-v-czk-qr-kody|language=cs|title=Standard - Formát pro sdílení platebních údajů v rámci tuzemského platebního styku v CZK prostřednictvím QR kódů|trans-title=Standard No. 26: Format for exchanging payment information for domestic payments in CZK using QR codes|publisher=Czech Banking Association|date=November 2012|access-date=27 May 2016|url-status=live|archive-url=https://web.archive.org/web/20160603184757/https://www.czech-ba.cz/aktivity/standardy/format-pro-sdileni-platebnich-udaju-v-czk-qr-kody|archive-date=3 June 2016}}</ref> <ref>{{cite web|url=https://cbaonline.cz/format-pro-sdileni-platebnich-udaju-v-czk-qr-kody|language=cs|title=Formát pro sdílení platebních údajů v CZK - QR kódy|trans-title=Format for exchanging payment information in CZK - QR codes|publisher=[[:cs:Česká bankovní asociace|Czech Banking Association]]|date=August 2015|access-date=2020-02-17|df=ymd-all|archive-date=16 February 2020|archive-url=https://web.archive.org/web/20200216234856/https://cbaonline.cz/format-pro-sdileni-platebnich-udaju-v-czk-qr-kody|url-status=live}}</ref> Kan 2013, an [[European Payments Council|European Payment Council]] nagtao nin mga giya para sa [[EPC QR code]] na nagpapangyari kan pagpoon [[Giro (banking)|kan SCT]] sa laog kan [[Eurozone]] .

Kan 2017, [[Singapur|an Singapore]] nagmukna nin sarong task force kabali an mga ahensya kan gobyerno arog kan [[Monetary Authority of Singapore]] asin [[Infocomm Media Development Authority]] tanganing pangenotan an sarong sistema para sa mga e-payment gamit an mga standardized QR code specifications. An mga partikular na dimensyon na ini espesyalista para sa Singapore. <ref>{{Cite web|last=IMDA|date=November 9, 2022|title=Annex A – Fact sheet on Singapore Quick Response Code (SGQR)|url=https://www.imda.gov.sg/-/media/Imda/Files/About/Media-Releases/2018/Annex-A--Singapore-Quick-Response-Code-SGQR.pdf|access-date=10 November 2022|archive-date=5 December 2022|archive-url=https://web.archive.org/web/20221205182456/https://www.imda.gov.sg/-/media/Imda/Files/About/Media-Releases/2018/Annex-A--Singapore-Quick-Response-Code-SGQR.pdf|url-status=live}}</ref>

An sistema nin e-payment, an Singapore Quick Response Code (SGQR), esensyal na pinagsasaro an manlaen-laen na QR code sa sarong label na pwedeng gamiton kan duwang partido sa sistema nin pagbayad. Ini nagtutugot sa manlaen-laen na mga app sa bangko tanganing mapadali an mga pagbayad sa pag-ultanan kan dakol na mga parokyano asin sarong negosyante na nagpapahiling nin sarong QR code. An SGQR scheme pinagsasadiri kan MAS asin IMDA. <ref name="sgqr2">{{Cite web|last=Monetary Authority of Singapore|date=November 9, 2022|title=Singapore Quick Response Code (SGQR)|url=https://www.mas.gov.sg/development/e-payments/sgqr|access-date=10 November 2022|archive-date=26 July 2022|archive-url=https://web.archive.org/web/20220726112709/https://www.mas.gov.sg/development/e-payments/sgqr|url-status=live}}</ref> An sarong SDQR label igwa nin mga e-payment asin pinagsasaro an dakol na mga opsyon sa pagbayad. An mga tawong nagbabakal pwedeng mag-scan kan kodigo asin hilingon kun arin na mga opsyon sa pagbayad an inaako kan negosyante. <ref name="sgqr3">{{Cite web|last=Monetary Authority of Singapore|date=November 9, 2022|title=Singapore Quick Response Code (SGQR)|url=https://www.mas.gov.sg/development/e-payments/sgqr|access-date=10 November 2022|archive-date=26 July 2022|archive-url=https://web.archive.org/web/20220726112709/https://www.mas.gov.sg/development/e-payments/sgqr|url-status=live}}</ref>

=== Paglaog sa website ===
An mga QR code pwedeng gamiton sa pag-log in sa mga website: an sarong QR code ipinapahiling sa pahina nin pag-login sa [[Computer monitor|screen kan kompyuter]], asin kun an sarong rehistradong paragamit mag-scan kaini gamit an sarong beripikadong smartphone, sinda awtomatikong ma-log in. An pagpapatunay ginigibo kan smartphone, na nakikipag-olay sa server. An Google nag-deploy nin siring na login scheme kan 2012. <ref>{{cite web|url=http://www.zdnet.com/blog/security/google-testing-login-authentication-via-qr-codes/10105|title=Google testing login authentication via QR codes|first=Ryan|last=Naraine|date=17 January 2012|website=[[ZDNet]]|url-status=dead|archive-url=https://web.archive.org/web/20130615073011/http://www.zdnet.com/blog/security/google-testing-login-authentication-via-qr-codes/10105|archive-date=15 June 2013}}</ref>

=== Tiket sa mobile ===
Igwa nin sistema kun saen an sarong QR code pwedeng maipahiling sa sarong aparato arog kan smartphone asin gamiton bilang [[Ticket (admission)|tiket sa paglaog]] . <ref>{{cite web|title=【公式】チケットの使い方 東京ディズニーリゾート|url=https://www.tokyodisneyresort.jp/ticket/usage.html|language=ja|access-date=20 October 2022|archive-date=20 October 2022|archive-url=https://web.archive.org/web/20221020051932/https://www.tokyodisneyresort.jp/ticket/usage.html|url-status=live}}</ref> <ref>{{cite web|title=ダイレクトイン（QRコード）の使い方｜USJ WEBチケットストア|url=https://www.usj.co.jp/ticket/guide/use.html|website=USJ|language=ja|access-date=20 October 2022|archive-date=20 October 2022|archive-url=https://web.archive.org/web/20221020052009/https://www.usj.co.jp/ticket/guide/use.html|url-status=live}}</ref> An paggamit kaini lakop para sa mga tiket [[J1 League|kan J1 League]] asin [[Nippon Professional Baseball]] sa Hapon. <ref>{{cite web|title=QRチケットレス入場について|url=https://www.sanfrecce.co.jp/tickets/qrcode|website=サンフレッチェ広島 オフィシャルサイト|language=ja}}</ref> <ref>{{cite web|title=スマートスタジアム|url=https://www.rakuteneagles.jp/special/qrticket/|website=東北楽天ゴールデンイーグルス|language=ja|access-date=20 October 2022|archive-date=20 October 2022|archive-url=https://web.archive.org/web/20221020053037/https://www.rakuteneagles.jp/special/qrticket/|url-status=live}}</ref> Sa nagkapirang kaso, an mga deretso pwedeng ibalyo sa paagi kan Internet. Sa [[Latbya|Latvia]], an mga QR code pwedeng i-scan sa pampublikong transportasyon [[Riga|kan Riga]] tanganing ma-validate an mga e-ticket [[Rīgas Satiksme|kan Rīgas Satiksme]] . <ref>{{Cite web|title=New Riga public transport tickets are on sale now {{!}} Rīgas valstspilsētas pašvaldība|url=https://www.riga.lv/en/article/new-riga-public-transport-tickets-are-sale-now|access-date=2023-09-13|website=www.riga.lv|language=en}}</ref><gallery>
Ladawan:460-0061-COVID-19 7-2021-hinnerk-ruemenapf.jpg|Sarong karatula na may QR code na nagkokonektar sa sarong menu nin mga inomon
</gallery>

== Mga Toltolan ==
<references />
{{Tamboan}}
An QR code ( quick-response code )  sarong klase nin duwang-dimensyonal na matrix barcode, na naimbento kan 1994, kan kompanyang Hapon na Denso Wave para sa pagmarka nin mga parte nin awto.   Ini nagtatampok nin mga itom na kwadrado sa sarong puting background na may mga fiducial markers, na mababasa kan mga imaging device arog kan mga kamera, asin napoproseso gamit an Reed-Solomon error correction sagkod na an imahe maiinterpretar nin tama. An kinakaipuhan na datos dangan kinukua gikan sa mga pattern na yaon sa parehong horizontal asin vertical na mga sangkap kan QR na imahe. 

Mantang an barcode sarong optical na imahe na mababasa kan makina na igwa nin impormasyon na espesipiko sa may tatak na bagay, an QR code igwa nin datos para sa sarong locator, sarong identifier, asin web-tracking. Tanganing maibugtak an datos nin episyente, an mga QR code naggagamit nin apat na standardized na paagi nin pag-encode:

 (1) numero ,
 (2) alphanumeric ,
 (3) byte o binary, asin
 (4) kanji . 

Kun ikukumpara sa mga pamantayan na UPC barcode, an sistema nin QR labeling pig-aplikar sa luwas kan industriya nin awto huli sa mas marikas na pagbasa kan optical image asin mas dakulang kapasidad sa pagtipig nin datos sa mga aplikasyon arog kan pagsubaybay kan produkto, pagmidbid kan bagay, pagsubaybay sa oras, pamamahala nin dokumento, asin pankagabsan na pagmemerkado. 

 Kasaysayan 

An sistema nin QR code naimbento kan 1994, sa Denso Wave automotive products company, sa Hapon.    An enot na disenyo nin alternating-square na iprinesentar kan grupo nin mga parasiyasat, na pinangenotan ni Masahiro Hara, naimpluwensiyahan kan mga itom na counter asin kan mga puting counter na pigtutugtog sa sarong Go board ;  an pattern kan mga marker nin pagdetektar nin posisyon nadeterminaran sa paagi nin paghanap kan pinakadiit na ginamit na pagkasunod-sunod kan mga nagsasalin-salin na itom-puti na mga lugar sa nakaimprentang bagay, na nakuang (1:1:3:1:1).   An katuyuhan kan sistema nin QR code iyo na mapadali an pagsubaybay kan mga klase asin bilang kan mga parte kan awto, sa paagi nin pagsalida nin mga indibidwal na pig-scan na mga tatak nin bar-code sa lambang kahon nin mga parte nin awto na may sarong tatak na igwa kan datos kan lambang tatak. An quadrangular na pagsasaayos kan sistema nin QR code pinagsararo an datos kan manlaen-laen na mga bar-code label na may Kanji, Kana, asin alphanumeric codes na nakaimprenta sa sarong label.   

 Pag-ampon 
As of 2024,[update] QR codes are used in a much broader context, including both commercial tracking applications and convenience-oriented applications aimed at mobile phone users (termed mobile tagging). QR codes may be used to display text to the user, to open a webpage on the user's device, to add a vCard contact to the user's device, to open a Uniform Resource Identifier (URI), to connect to a wireless network, or to compose an email or text message. There are a great many QR code generators available as software or as online tools that are either free or require a paid subscription. The QR code has become one of the most-used types of two-dimensional code.

Kan Hunyo 2011, 14 milyones na mga Amerikanong paragamit nin mobile an nag-scan nin QR code o barcode. Mga 58% kan mga paragamit na idto an nag-scan nin QR o barcode hale sa saindang mga harong, mantang 39% an nag-scan hale sa mga tindahan; 53% kan 14 milyones na paragamit mga lalaki na nasa edad na 18 asin 34. 

Kan 2022, 89 milyones katawo sa Estados Unidos an nag-scan nin QR code gamit an saindang mga mobile device, na mas halangkaw nin 26 porsyento kumpara sa 2020. An mayoriya kan mga paragamit nin QR code ginagamit ini tanganing magbayad o tanganing ma-access an impormasyon kan produkto asin menu . 

Kan Setyembre 2020, sarong surbey an nakadiskobre na 18.8 porsyento kan mga konsumidor sa Estados Unidos asin sa Reino Unido an marigon na uminoyon na nariparo ninda an paglangkaw kan paggamit nin QR code poon kan an mga restriksyon na may relasyon sa COVID-19 na aktibong kaidto nagpoon pirang bulan bago kaini. 

 Mga Gamit 
An mga QR code nagin nang komun sa mga advertising kan mga konsumidor. Sa parati, an sarong smartphone ginagamit bilang sarong QR code scanner, na nagpapahiling kan kodigo asin pigkokombertir ini sa sarong kapaki-pakinabang na porma (arog kan sarong pamantayan na URL para sa sarong website, sa siring nalilikayan an pangangaipo para sa sarong paragamit na i-type ini sa sarong Web browser ).

An QR code nagin nang pokus kan estratehiya sa advertising, nin huli ta ini nagtatao nin paagi tanganing mas marikas na ma-access an website kan sarong tatak kisa sa mano-manong paglaog nin sarong URL.   Lampas pa sa kaginhawahan sana sa konsumidor, an importansya kan kakayahan na ini iyo na ini nagpapalangkaw kan conversion rate : an tsansa na an pakikipag-ulay sa advertisement magigin sarong benta. Ini nag-aakit sa mga interesadong prospekto sa mas hababa pa sa funnel nin pagkombertir na may kadikit na pagkaatraso o paghihingoa, na dinadara an paradalan sa website kan paraanunsyo tulos, mantang an mas halawig asin mas target na sales pitch pwedeng mawaran kan interes kan paradalan.

 Pagbayad sa QR code 
An mga QR code pwedeng gamiton sa pagtipig nin impormasyon sa bank account o impormasyon sa credit card, o pwede ining partikularmenteng dinisenyo tanganing magtrabaho sa partikular na mga aplikasyon nin paratao nin pagbayad. Igwa nin nagkapirang mga aplikasyon sa pagprobar kan mga pagbayad sa QR code sa bilog na kinaban.   Sa mga nagpoprogreso pa sanang nasyon kabali an Tsina,   India  an pagbayad sa QR code sarong popular asin kombenyenteng marhay na paagi nin pagbayad. Poon kan an Alipay nagdisenyo nin paagi nin pagbayad sa QR code kan 2011,  an pagbayad sa mobile marikas na inadaptar sa Tsina. Kan 2018, mga 83% kan gabos na pagbayad an ginibo sa paagi nin mobile payment. 

Kan Nobyembre 2012, an mga pagbayad sa QR code pig-deploy sa mas dakulang eskala sa Czech Republic kan an sarong bukas na format para sa pagbalyo nin impormasyon sa pagbayad – sarong Short Payment Descriptor – pig-introdusir asin pig-endorso kan Czech Banking Association bilang an opisyal na lokal na solusyon para sa mga pagbayad sa QR.   Kan 2013, an European Payment Council nagtao nin mga giya para sa EPC QR code na nagpapangyari kan pagpoon kan SCT sa laog kan Eurozone .

Kan 2017, an Singapore nagmukna nin sarong task force kabali an mga ahensya kan gobyerno arog kan Monetary Authority of Singapore asin Infocomm Media Development Authority tanganing pangenotan an sarong sistema para sa mga e-payment gamit an mga standardized QR code specifications. An mga partikular na dimensyon na ini espesyalista para sa Singapore. 

An sistema nin e-payment, an Singapore Quick Response Code (SGQR), esensyal na pinagsasaro an manlaen-laen na QR code sa sarong label na pwedeng gamiton kan duwang partido sa sistema nin pagbayad. Ini nagtutugot sa manlaen-laen na mga app sa bangko tanganing mapadali an mga pagbayad sa pag-ultanan kan dakol na mga parokyano asin sarong negosyante na nagpapahiling nin sarong QR code. An SGQR scheme pinagsasadiri kan MAS asin IMDA.  An sarong SDQR label igwa nin mga e-payment asin pinagsasaro an dakol na mga opsyon sa pagbayad. An mga tawong nagbabakal pwedeng mag-scan kan kodigo asin hilingon kun arin na mga opsyon sa pagbayad an inaako kan negosyante. 

 Paglaog sa website 
An mga QR code pwedeng gamiton sa pag-log in sa mga website: an sarong QR code ipinapahiling sa pahina nin pag-login sa screen kan kompyuter, asin kun an sarong rehistradong paragamit mag-scan kaini gamit an sarong beripikadong smartphone, sinda awtomatikong ma-log in. An pagpapatunay ginigibo kan smartphone, na nakikipag-olay sa server. An Google nag-deploy nin siring na login scheme kan 2012. 

 Tiket sa mobile 
Igwa nin sistema kun saen an sarong QR code pwedeng maipahiling sa sarong aparato arog kan smartphone asin gamiton bilang tiket sa paglaog .   An paggamit kaini lakop para sa mga tiket kan J1 League asin Nippon Professional Baseball sa Hapon.   Sa nagkapirang kaso, an mga deretso pwedeng ibalyo sa paagi kan Internet. Sa Latvia, an mga QR code pwedeng i-scan sa pampublikong transportasyon kan Riga tanganing ma-validate an mga e-ticket kan Rīgas Satiksme . 

 Mga Toltolan