| 摘要 |
PURPOSE: A PDA(Personal Digital Assistant) and a case system having a rotation function are provided to view the PDA vertically or horizontally by buying the case system and installing the PDA to the case system. CONSTITUTION: The PDA(100) is attached/detached to a PDA cradle(200). The PDA cradle is rotated in order to display the PDA vertically or horizontally, and outputs a position signal detected by the rotation. The PDA displays the display information vertically or horizontally according to the position signal. A rotation part(300) rotates the PDA cradle by installing to a back side of the PDA cradle. A supporter(400) supports the rotation part and the PDA cradle when the PDA cradle is rotated against the rotation part as a center. The PDA cradle includes a connector, an interface, a modem, an antenna, and a position detector.
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