Editing Barcode (section)

==={{anchor|2D barcodes}} 2D barcodes===

2D barcodes consist of bars, but use both dimensions for encoding.
{| class="wikitable"
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!Example!!Symbology!!Continuous or discrete!!Bar type!!Uses
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|[[File:Australia Post 4-state barcode.png|128px]]
|[[Australia Post]] barcode
|Discrete
|4 bar heights
|An Australia Post 4-state barcode as used on a business reply paid envelope and applied by automated sorting machines to other mail when initially processed in fluorescent ink.<ref>{{cite web |date=October 2014 |title=Barcoding fact sheet |url=https://auspost.com.au/content/dam/auspost_corp/media/documents/barcoding-fact-sheet-oct14.pdf |publisher=Australia Post |archive-url= https://web.archive.org/web/20241126192901/https://auspost.com.au/content/dam/auspost_corp/media/documents/barcoding-fact-sheet-oct14.pdf |archive-date= 26 November 2024}}</ref>
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|[[File:Codablock-F Example.png|128px]]||[[Codablock]]||Continuous||Many||Codablock is a family of stacked 1D barcodes (in some cases counted as stacked 2D barcodes) which are used in health care industry (HIBC).
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|[[File:Code 49 wikipedia.png|128px]]||[[Code 49]]||Continuous||Many||Various
|-
|[[File:Code 16K wikipedia.png|128px]]
|[[Code 16K]]
|
|
|The Code 16K (1988) is a multi-row bar code developed by Ted Williams at Laserlight Systems (USA) in 1992. In the US and France, the code is used in the electronics industry to identify chips and printed circuit boards. Medical applications in the USA are well known. Williams also developed Code 128, and the structure of 16K is based on Code 128. Not coincidentally, 128 squared happened to equal 16,384 or 16K for short. Code 16K resolved an inherent problem with Code 49. Code 49's structure requires a large amount of memory for encoding and decoding tables and algorithms. 16K is a stacked symbology.<ref name="2-Dimensional Bar Code Page">{{Cite web|url=http://www.adams1.com/stack.html|title=2-Dimensional Bar Code Page|website=www.adams1.com|access-date=12 January 2019|archive-date=7 July 2011|archive-url=https://web.archive.org/web/20110707082929/http://www.adams1.com/stack.html|url-status=live}}</ref><ref>{{Cite web|url=http://www.gomaro.ch/ftproot/Code%2016k.pdf|title=Code 16K Specs|website=www.gomaro.ch|access-date=12 January 2019|archive-date=13 July 2018|archive-url=https://web.archive.org/web/20180713121653/http://www.gomaro.ch/ftproot/Code%2016k.pdf|url-status=live}}</ref>
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|[[File:Dx-film-edge-barcode.jpg|128px]]||[[DX encoding#DX film edge barcode|DX film edge barcode]]||Neither||Tall/short||[[Color print film]]
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|[[File:Intelligent Mail Barcode Wiki22.png|128px]]||[[Intelligent Mail barcode]]||Discrete||4 bar heights||United States Postal Service, replaces both POSTNET and PLANET symbols (formerly named [[OneCode]])
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|[[File:Diagram Of a KarTrak ACI Plate.svg|128px]]||[[KarTrak]] ACI||Discrete||Coloured bars||Used in North America on railroad rolling equipment
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|[[File:Canada Post d52.01 domestic barcode.png|128px]] ||[[PostBar]]||Discrete||4 bar heights||Canadian Post office
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|[[Image:POSTNET BAR.svg]] [[Image:POSTNET 1.svg]] [[Image:POSTNET 2.svg]] [[Image:POSTNET 3.svg]] [[Image:POSTNET BAR.png]]||[[POSTNET]] || Discrete || Tall/short || United States Postal Service (no international standard available)
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|[[File:Address with RM4SCC barcode.svg|128px]]||[[RM4SCC]] / KIX||Discrete||4 bar heights||Royal Mail / [[PostNL]]
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|[[File:Royal Mail mailmark C barcode.png|128px]]||RM Mailmark C||Discrete||4 bar heights||Royal Mail
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|[[File:Royal Mail mailmark L barcode.png|128px]]||RM Mailmark L||Discrete||4 bar heights||Royal Mail
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|[[File:Spotify code barcode.svg|128px]] ||[[Spotify]] codes||Discrete||23 bar heights||Spotify codes point to artists, songs, podcasts, playlists, and albums. The information is encoded in the height of the bars;<ref>{{Cite web |last=Boone |first=Peter |date=13 November 2020 |title=How do Spotify Codes work? |url=https://boonepeter.github.io/posts/2020-11-10-spotify-codes/ |access-date=2023-05-03 |website=boonepeter.github.io |language=en |archive-date=3 May 2023 |archive-url=https://web.archive.org/web/20230503163202/https://boonepeter.github.io/posts/2020-11-10-spotify-codes/ |url-status=live }}</ref> so as long as the bar heights are maintained, the code can be handwritten and can vary in color.<ref>{{Cite web |title=Scan these new QR-style Spotify Codes to instantly play a song |url=https://techcrunch.com/2017/05/05/spotify-codes/ |access-date=2022-08-21 |website=TechCrunch |date=5 May 2017 |language=en-US}}</ref> Patented under EP3444755.

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