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English Braille, also known as Grade 2 Braille, [1] is the braille alphabet used for English. It consists of around 250 letters , numerals, punctuation, formatting marks, contractions, and abbreviations . Some English Braille letters, such as ⠡ ch , [2] correspond to more than one letter in print.
Braille translators can be run by people with or without sight. A braille translator can run on a smartphone, [2] personal computer, network server, [3] or (historically) larger mini-computers or mainframes of larger institutions. Some languages use uncontracted braille, where each letter uses a specific braille character.
Uncontracted braille was previously known as grade 1 braille, and contracted braille was previously known as grade 2 braille. Uncontracted braille is a direct transliteration of print words (one-to-one correspondence); hence, the word "about" would contain all the same letters in uncontracted braille as it does in inkprint.
According to the original [2] 1991 specification [3] for UEB, the goals were: 1. simplify and unify the system of braille used for encoding English, reducing community-fragmentation 2. reduce the overall number of official coding systems, which currently include: a. literary code (since 1933, English Braille Grade 2 has been the main component) i.
Likewise, the values of English contracted ("Grade 2") ⠡ ch, ⠩ sh, and ⠹ th are widely used for similar sounds in other languages. An otherwise unused letter may be reassigned. For example, Tibetan Braille, which is based on German Braille, reassigns ⠉ c, ⠟ q, ⠭ x, and ⠽ y, which are redundant in German.
Tactile provides real-time translation of English text, captured by integrated camera, into braille dynamically rendered on a refreshable display.The end product is to display 36 braille characters at a time on a 5 in × 2 in (127 mm × 51 mm) interface [note 1] with an intended retail price around US$100. [3]
Four braille languages are recognised: English (grade 2), French, Japanese and Korean braille. English (grade 2) braille is default so doesn't have to be entered, the other languages should be defined (e.g. lang=Japanese). type. Type of braille cell to be shown: 6-dot cell image, 8-dot cell image, in-line text character 6, 6dot, 8, 8dot, image ...
The Braille pattern dots-236 ( ⠦) is a 6-dot braille cell with the middle left and both bottom dots raised, or an 8-dot braille cell with the upper-middle left and both lower-middle dots raised. It is represented by the Unicode code point U+2826, and in Braille ASCII with the number 8.