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Alphabets of disabled people

The Siekoo Alphabet (Creative Commons Lizenz)
( 2012)

Siekoo Alphabet
Siekoo [phonetic notation Se-koh: ˈsiː koː], the 7-Segment Writing by Alexander Fakoó


The Siekoo Alphabet uses the well-known 7-segment display to realize a confusion-free alpha-numeric text representation by assigning separate segment combinations to all letters and numbers.

Segment numbering: top left = 6, bottom left = 5, top center = 1, center = 7, bottom center = 4, top right = 2, bottom right = 3, decimal point = 8


Siekoo Alphabet
Siekoo Alphabet
---------------- Table Siekoo Alphabet: ----------------
the alphabet for a confusion-free 7-segment display


Numbering of the segments:
- 1 / a: middle top
- 2 / b: top right
- 3 / c: bottom right
- 4 / d: middle bottom
- 5 / e: bottom left
- 6 / f: top left
- 7 / g: middle
   
Character A = 123457 = abcdeg dual: 1111101
Character B = 34567 = cdefg dual: 0011111
Character C = 457 = deg dual: 0001101
Character D = 23457 = bcdeg dual: 0111101
Character E = 14567 = adefg dual: 1001111
Character F = 1567 = aefg dual: 1000111
Character G = 13456 = acdef dual: 1011110
Character H = 3567 = cefg dual: 0010111
Character I = 15 = ae dual: 1000100
Character J = 134 = acd dual: 1011000
Character K = 13567 = acefg dual: 1010111
Character L = 456 = def dual: 0001110
Character M = 1357 = aceg dual: 1010101
Character N = 357 = ceg dual: 0010101
Character O = 3457 = cdeg dual: 0011101
Character P = 12567 = abefg dual: 1100111
Character Q = 12367 = abcfg dual: 1110011
Character R = 57 = eg dual: 0000101
Character S = 1346 = acdf dual: 1011010
Character T = 4567 = defg dual: 0001111
Character U = 345 = cde dual: 0011100
Character V = 246 = bdf dual: 0101010
Character W = 2467 = bdfg dual: 0101011
Character X = 35 = ce dual: 0010100
Character Y = 23467 = bcdfg dual: 0111011
Character Z = 1245 = abde dual: 1101100
 
Character 1 = 23 = bc dual: 0110000
Character 2 = 12457 = abdeg dual: 1101101
Character 3 = 12347 = abcdg dual: 1111001
Character 4 = 2367 = bcfg dual: 0110011
Character 5 = 13467 = acdfg dual: 1011011
Character 6 = 134567 = acdefg dual: 1011111
Character 7 = 123 = abc dual: 1110000
Character 8 = 1234567 = abcdefg dual: 1111111
Character 9 = 123467 = abcdfg dual: 1111011
Character 0 = 123456 = abcdef dual: 1111110
 
Character . = 5 = e dual: 0000100
Character , = 34 = cd dual: 0011000
Character ; = 24 = bd dual: 0101000
Character : = 14 = ad dual: 1001000
Character ! = 12467 = abdfg dual: 1101011
Character ? = 1247 = abdg dual: 1101001
Character + = 237 = bcg dual: 0110001
Character - = 7 = g dual: 0000001
Character = = 47 = dg dual: 0001001
Character * = 147 = adg dual: 1001001
Character # = 2356 = bcef dual: 0110110
Character / = 257 = beg dual: 0100101
Character \ = 367 = cfg dual: 0010011
Character ¯ = 1 = a dual: 1000000
Character _ = 4 = d dual: 0001000
Character ( = 1456 = adef dual: 1001110
Character ) = 1234 = abcd dual: 1111000
Character ' = 6 = f dual: 0000010
Character " = 26 = bf dual: 0100010
Character ° = 1267 = abfg dual: 1100011
Character < = 16 = af dual: 1000010
Character > = 12 = ab dual: 1100000
Character % = 36 = cf dual: 0010010
Character @ = 1235 = abce dual: 1110100
several graphic print versions of the Siekoo Alphabet






When assigning possible segment combinations to the individual numbers or letters, care was taken to ensure that  no double meanings as a letter  and  number  occur.

Siekoo alphabet including numbers in two lines

However, since the appearance of the digits is fixed, the letters of it had to receive different combinations. Here you see the comparison of easily confused letters and numbers:

Number 0 segments 123456 Letter o segments 3457
Number 1 segments 23 Letter i segments 15
Number 2 segments 12457 Letter z segments 1245
Number 5 segments 13467 Letter s segments 1346
Number 6 segments 134567 Letter g segments 13456
Number 8 segments 1234567 Letter b segments 34567


Problematic letters were formed with an upper or an underscore, here in comparison:

Letter n segments 357 Letter m segments 1357
Letter u segments 345 Letter w segments 2467
Letter h segments 3567 Letter k segments 13567
Letter x segments 35 Letter v segments 246


To ensure an unambiguous alphabet, 7-segment characters that could not be clearly assigned to a specific letter were excluded. The following are the most important excluded characters:

segments 23567 Letter h or x ?
segments 1456 Letter c or ( ?
segments 1234 Letter i, j or ) ?
segments 2567 Letter v or 4 ?
segments 156 Letter r or ß ?


The following pairs for M and W were tested and rejected:

segments 123567 segments 234567 Letter a ?
segments 12356 segments 23456 Letters n + u ?
segments 126 segments 267 Letters n + u ?
segments 1357 segments 1345 Letter ü (umlaut)?


The following pairs, however, were formed:

Letters m + w segments 1357segments 2467
Letters s + z segments 1346segments 1245
Letters p + q segments 12567segments 12367
Letters i + j segments 15segments 134
Letter x + # segments 35segments 2356
Parentheses ( ) segments 1456segments 1234
Slashes / \ segments 257segments 367
larger smaller < > segments 16segments 12


Lowercase letters were used instead, due to the potential for multiple meanings associated with uppercase letters.


The Siekoo alphabet has been meticulously designed to display text that is free from ambiguity and easy to read.
Signum Alexander Fakoó

Compare, on the other hand, the representation of possible letters in the 7-segment display in electronic devices see on ->> Wikipedia or on opledtw.com (not free from ambiguity !)


© Legal Aspects:


Do you have ideas for marketing?
Would you like to use Siekoo for promotional purposes?
Get in  Lettercontact with me, get a license.




To get an impression of readability, here is a text in Siekoo:

excerpt 'A seven-segment display is a display element made up of seven separately switchable, visible bars. The seven segments are arranged as a rectangle of two vertical segments on each side with one horizontal segment on the top, middle, and bottom. The segments are clockwise referred to by the letters A to G.' from Wikipedia, display in Siekoo


The uniqueness of the characters can also be used to represent passwords and the like:

password: g¯vk2¯d7s¯u

Uppercase letters are displayed by the macro character , so the password is gVk2D7sU



Sentio Digital - Display of the digits 0 and 9
If the 7-segment characters are detectable tactile, the Siekoo alphabet can also be used for blind people.


Sample of a tactile use of the Siekoo alphabet:
as a relief font, the siekoo-alphabet has the advantage that it is easy to learn and quickly read due to its well-known structure.


Also use the 7-segment decoder for 7-segment numeric code


Assignment of the Siekoo alphabet to the 128 possible 7-segment characters:
Display of all 128 possible 7-segment characters




screensaver clock
Siekoo screensaver
fakoo.de/en/ss

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