Optical Character Recognition (Unicode block)
| Optical Character Recognition | |
|---|---|
| Range | U+2440..U+245F (32 code points) |
| Plane | BMP |
| Scripts | Common |
| Symbol sets | OCR controls |
| Assigned | 11 code points |
| Unused | 21 reserved code points |
| Unicode version history | |
| 1.0.0 (1991) | 11 (+11) |
| Unicode documentation | |
| Code chart ∣ Web page | |
| Note: [1][2] | |
Optical Character Recognition is a Unicode block containing signal characters for OCR standards.
Character table
| Optical Character Recognition[1][2] Official Unicode Consortium code chart (PDF) | ||||||||||||||||
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
| U+244x | ⑀ | ⑁ | ⑂ | ⑃ | ⑄ | ⑅ | ⑆ | ⑇ | ⑈ | ⑉ | ⑊ | |||||
| U+245x | ||||||||||||||||
| Notes | ||||||||||||||||
Subheadings
The Optical Character Recognition block has three informal subheadings (groupings) within its character collection: OCR-A, MICR, and OCR.[3]
OCR-A
The OCR-A subheading contains six characters taken from the OCR-A font described in the ISO 1073-1:1976 standard: U+2440 ⑀ OCR HOOK, U+2441 ⑁ OCR CHAIR, U+2442 ⑂ OCR FORK, U+2443 ⑃ OCR INVERTED FORK, U+2444 ⑄ OCR BELT BUCKLE, and U+2445 ⑅ OCR BOW TIE. The OCR bow tie is given the informative alias "unique asterisk".
MICR
The MICR subheading contains four characters standardized in the ISO 1004:1995 standard, from the magnetic ink character recognition E-13B font: U+2446 ⑆ OCR BRANCH BANK IDENTIFICATION, U+2447 ⑇ OCR AMOUNT OF CHECK, U+2448 ⑈ OCR DASH, and U+2449 ⑉ OCR CUSTOMER ACCOUNT NUMBER. The standard notes that "the Unicode character names include several misnomers" and gives normative aliases for two: U+2448 ⑈ is MICR ON US SYMBOL, and U+2449 ⑉ is MICR DASH SYMBOL. All four have informative aliases: "transit", "amount", "on us", and "dash" respectively.
OCR
The OCR subheading consists of a single character: U+244A ⑊ OCR DOUBLE BACKSLASH.
References
- ^ "Unicode character database". The Unicode Standard. Retrieved 22 March 2013.
- ^ The Unicode Standard Version 1.0, Volume 1. Addison-Wesley Publishing Company, Inc. 1990, 1991. ISBN 0-201-56788-1.
{{cite book}}: Check date values in:|year=(help)CS1 maint: year (link) - ^ "Unicode Code Charts: Optical Character Recognition" (PDF). The Unicode Standard, Version 6.3. Retrieved 27 February 2014.
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