| 摘要 |
A portable information terminal has, as its functions, a path display unit for successively displaying a path depending on operation of direction keys, a character display unit for displaying at least one imaginary character on a display unit, a comparing unit for comparing the input timing of a control signal and the output timing based on a predetermined sequence with each other, an influence determining unit for determining the magnitude of an influence on the imaginary character based on the result of comparison from the comparing unit, and a table registering unit for registering information of the imaginary character in an information table.
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