| 摘要 |
PURPOSE:To facilitate a detection of characters of high using frequencies by providing a cover to a character board used to a pen touch type word processor to cover the characters of low using frequencies. CONSTITUTION:A character cover 5 made of an opaque, semitransparent or colored material is set on an input character board of pen touch system. The cover 5 contains holes 6 through which the characters of high using frequencies can be seen easily. This cover facilitates a selection of characters of high using frequencies.
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