| 摘要 |
PURPOSE: A cellular phone, a smart phone, a notebook computer, and a personal computer are provided to take marketing effect in a global market and secure competitiveness due to an additional function. CONSTITUTION: A cellular phone, a smart phone, a notebook computer, and a personal computer comprise compasses. The compass is on the window to recognize a position if necessary. The compass works using semiconductor or other principles. The function of the compass can be linked to satellite. A mode to search for the compass is equipped with the cellular phone, the smart phone, the notebook computer and the personal computer.
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