| 摘要 |
PURPOSE:To provide the titled indicating plates which enables a keyboard to be easily operated by an unskilled operator, by a method wherein the keys in a kana letter arrangement on the keyboard are pigmented in different colors for every line of the kana set arranged in 50-syllabic system. CONSTITUTION:The keys 1 for the kana letters are pigmented in different colors for every line of the kana set arranged in 50-syllabic system. For example, the keys for the ''single-vowel line''(i.e. A, I, U, E, O) are pigmented in red as represented by a hatching 2, the keys for the ''K-line''(i.e. KA, KI, KU, KE, KO) are pigmented in blue as represented by a hatching 3, the keys for the ''S- line''(i.e. SA, SI, SU, SE, SO) are pigmented in yellow as represented by a hatching 4, the keys for the ''T-line''(i.e. TA, TI, TSU, TE, TO) are pigmented in green as represented by a hatching 5, and the keys for the ''N-line''(i.e. NA, NI, NU, NE, NO) are pigmented in orange 6. The key for a desired kana letter can be easily selected by tracing the color for the line to which the desired kana letter belong. |
