Optical Character Recognition (Unicode block): Difference between revisions

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|sources = [[ISO 2033]]

|1_0_0 = 11

|note = <ref>{{cite web|url=https://www.unicode.org/ucd/|title=Unicode character database|work=The Unicode Standard|accessdate=20162023-07-0926}}</ref><ref>{{cite web|url=https://www.unicode.org/versions/enumeratedversions.html|title=Enumerated Versions of The Unicode Standard|work=The Unicode Standard|accessdate=20162023-07-0926}}</ref>

|codechart = https://www.unicode.org/charts/PDF/U2440.pdf

|note = <ref>{{cite web|url=https://www.unicode.org|title=Unicode character database|work=The Unicode Standard|accessdate=2016-07-09}}</ref><ref>{{cite web|url=https://www.unicode.org/versions/enumeratedversions.html|title=Enumerated Versions of The Unicode Standard|work=The Unicode Standard|accessdate=2016-07-09}}</ref>

}}

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The OCR-A subheading contains six characters taken from the [[OCR-A]] font described in the ISO 1073-1:1976 standard: {{unichar|2440|OCR HOOK}}, {{unichar|2441|OCR CHAIR}}, {{unichar|2442|OCR FORK}}, {{unichar|2443|OCR INVERTED FORK}}, {{unichar|2444|OCR BELT BUCKLE}}, and {{unichar|2445|OCR BOW TIE}}. The OCR bow tie is given the [[Unicode character property#Name|informative alias]] "unique asterisk".

The hook, chair and fork, in addition to a long vertical bar, are included in the most basic "numeric" implementation level of OCR-A, which includes digits but excludes letters and conventional punctuation.<ref>{{cite web |url=https://ecma-international.org/wp-content/uploads/ECMA-8_2nd_edition_january_1977.pdf |title=Nominal Character Dimensions of the Numeric OCR-A Font |edition=2nd |id=ECMA-8 |year=1977 |author=European Computer Manufacturers Association |author-link=Ecma International}}</ref> By contrast, the most basic implementation level of [[OCR-B]] instead includes the digits, [[plus sign]], [[less-than sign]], [[greater-than sign]], long vertical bar and seven of the capital letters;<ref>{{cite web |url=https://www.open-std.org/JTC1/SC2/WG3/docs/n470.pdf#page=12 |page=8 |title=9.1: Subset 1: Minimal alphanumeric subset |work=Proposal for Type 3 Technical Report, TR 15907, Information technology—Revision of OCR-B standard (ISO 1073-2:1976) |id=ISO/IEC JTC1/SC2/WG3 N470 |date=1998-09-28 |author=ISO/IEC JTC1/SC2/WG3 |author-link=ISO/IEC JTC 1/SC 2}}</ref> as such, there are no characters specific to OCR-B in the Optical Character Recognition block.

===MICR===

{{further|Magnetic ink character recognition}}

[[File:BritishChequeNIXON, Richard M (signed check).pngjpg|right|thumb|A British style cheque forsigned aby fictional[[Richard bankNixon]], showing use of ⑆, ⑇, ⑈ and ⑉ in the machine-readable line]]

The MICR subheading contains four punctuation characters for [[cheque|bank cheque]] identifiers, taken from the [[magnetic ink character recognition]] E-13B font (codified in the ISO 1004:1995 standard): {{unichar|2446|OCR BRANCH BANK IDENTIFICATION}}, {{unichar|2447|OCR AMOUNT OF CHECK}}, {{unichar|2448|OCR DASH}}, and {{unichar|2449|OCR CUSTOMER ACCOUNT NUMBER}}.

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The following Unicode-related documents record the purpose and process of defining specific characters in the Optical Character Recognition block:

{{sticky header}}

{| class="wikitable sticky-header"

|-

! [[Unicode#Versions|Version]] !! {{nobr|Final code points<ref group=lower-alpha name=final/>}} !! Count !! [[International Committee for Information Technology Standards|L2]]&nbsp;ID !! [[ISO/IEC JTC 1/SC 2|WG2]]&nbsp;ID !! Document

|-

| rowspan="34" | 1.0.0 || rowspan="34" | U+2440..244A || rowspan="34" | 11 || || || (to be determined)

|-

| {{nobr|[https://www.unicode.org/L2/L2010/10416.htm L2/10-416R]}} || || {{Citation|title=UTC #125 / L2 #222 Minutes|date=2010-11-09|first=Lisa|last=Moore|ref=none|section=Consensus 125-C39|quote=Create two formal aliases, U+2448 MICR ON US SYMBOL and U+2449 MICR DASH SYMBOL for Unicode 6.1.}}

|-

| {{nobr|| [https://www.unicode.org/L2wg2/L2010docs/10416n4103.htmpdf L2/10-416RN4103]}} || || {{Citation|title=UTCUnconfirmed #125minutes /of L2WG #2222 Minutesmeeting 58|date=20102012-1101-0903|firstref=Lisa|last=Moorenone|section=ConsensusT.3. 125-C39|quote=CreateOptical twoCharacter formal aliases, U+2448 MICR ON US SYMBOL and U+2449 MICR DASH SYMBOL for Unicode 6.1.Recognition}}

|-

| {{nobr|| [https://www.unicode.org/wg2L2/docsL2022/n410322065-edcom-rept-utc171.pdfhtml N4103L2/22-065]}} || || {{Citation|title=UnconfirmedEditorial minutesCommittee ofReport WGand 2Recommendations meetingfor 58UTC #171Meeting|date=20122022-0104-0313|first=Ken|last=Whistler|ref=none|section=T.3Opt Subject: Unicode 14.0 "Optical Character Recognition" code chart [Affects U+2447]}}

|- class="sortbottom"

| colspan="6" | {{reflist|group=lower-alpha|refs=<ref name=final>Proposed code points and characters names may differ from final code points and names</ref>}}