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The Unicode block Braille Patterns (U+2800..U+28FF) contains all 256 possible patterns of an 8-dot braille cell, thereby including the complete 6-dot cell range. [3] In Unicode, a braille cell does not have a letter or meaning defined. For example, Unicode does not define U+2817 ⠗ BRAILLE PATTERN DOTS-1235 to be "R".
Four options can be used in this Braille cell template to produce a cell, and all are case-insensitive (A=a). {{braille cell|1234|1423|⠏|U+280F|u+280f}} → ⠏ ⠏ ⠏ ⠏ ⠏ Note that this cell definition is unrelated to any language (no "A" assigned). A braille cell is defined by naming the raised dots. In 6-dot notation there are 64 ...
Braille was the first writing system with binary encoding. [7] The system as devised by Braille consists of two parts: [10] Character encoding that mapped characters of the French alphabet to tuples of six bits (the dots). The physical representation of those six-bit characters with raised dots in a braille cell.
(Although the definition of "character" doesn't include Braille cells, the Access Board has stated that the 48 inch rule applies to the base of the lowest line of Braille cells.) If pictograms are used to identify the space (for example, restroom signs with gender pictograms), they must be in a six-inch vertical field clear of all other content ...
The Braille pattern dots-6 ( ⠠) is a 6-dot braille cell with the bottom right dot raised, or an 8-dot braille cell with the lower-middle right dot raised. It is represented by the Unicode code point U+2820, and in Braille ASCII with a comma:, .
The Braille pattern dots-125 ( ⠓) is a 6-dot braille cell with the top left and both middle dots raised, or an 8-dot braille cell with the top left and both upper-middle dots raised. It is represented by the Unicode code point U+2813, and in Braille ASCII with H.
The Braille pattern dots-156 ( ⠱) is a 6-dot braille cell with the upper left, and middle and bottom right dots raised, or an 8-dot braille cell with the upper left, and upper-middle and lower-middle right dots raised. It is represented by the Unicode code point U+2831, and in Braille ASCII with a colon: ":".
The Braille pattern dots-1256 ( ⠳) is a 6-dot braille cell with the top left, both middle, and bottom right dots raised, or an 8-dot braille cell with the top left, both upper-middle, and lower-middle right dots raised. It is represented by the Unicode code point U+2833, and in Braille ASCII with a backslash: \.