Research Article
The SSVEP-Based BCI Text Input System Using Entropy Encoding Algorithm
Table 2
The encoding results of EEA.
| Letter | Code | Letter | Code | Letter | Code |
| A | 11 | W | 0001 | s | 1230 | B | 0003 | X | 01203 | t | 0333 | C | 011 | Y | 0000 | u | 000202 | D | 010 | Z | 000200 | v | 012001 | E | 02 | a | 1232 | w | 01231 | F | 120 | b | 00303 | x | 0120021 | G | 122 | c | 00021 | y | 03311 | H | 001 | d | 01201 | z | 0120022 | I | 21 | e | 00323 | 0 | 0033 | J | 03313 | f | 03310 | 1 | 0121 | K | 0122 | g | 03312 | 2 | 0332 | L | 002 | h | 01202 | 3 | 00301 | M | 032 | i | 00022 | 4 | 00300 | N | 20 | j | 000201 | 5 | 0330 | O | 13 | k | 012000 | 6 | 00320 | P | 121 | l | 01232 | 7 | 01230 | Q | 000203 | m | 1233 | 8 | 00302 | R | 23 | n | 00023 | 9 | 1231 | S | 22 | o | 01233 | ? | 012003 | T | 10 | p | 00322 | ! | 0120023 | U | 031 | q | 0120020 | , | 030 | V | 0031 | r | 00321 | . | 013 |
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