| 摘要 |
A portable radio information terminal apparatus capable of promptly moving screen display to a desired layer in a multilayer screen display structure and a screen operating method for use in the apparatus. This terminal apparatus comprises a command inputting discriminating means for determining whether an input signal supplied from the inputting means is generated by a predetermined command inputting operation; a movement control means for determining, based on a decision made by the command inputting discriminating means, whether the generated input signal continues and, if the generated input signal is found continuing, activating a layer-to-layer moving means and, if the generated input signal is found stopped, stopping the layer-to-layer moving means; and the layer-to-layer moving means for causing a layer-to-layer moving operation based on a command issued by the movement control means and executing a screen displaying operation on a destination layer; wherein, while the generated input signal continues, the layer-to-layer moving operation and the screen display operation on the destination layer are repeated.
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