| 摘要 |
A surcharge is to be paid by a cell phone user if it is determined that the cell phone is being used while driving a vehicle. In a disclosed embodiment, a GPS device in the cell phone transmits the location of the cell phone when the cell phone is first being used. After a suitable delay, the GPS device in the cell phone transmits another signal about the location of the cell phone. If it is determined that the distance between the two locations is significant, then it is determined that the cell phone is likely being used while driving a vehicle and a surcharge is applied to the user's account.
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