| 摘要 |
A location finder device uses a GPS (Global Positioning System) to lock in location coordinates of a user site or a stationary car and then uses GPS and the last locked-in coordinates to direct the user back to the original location. The device may use special encrypted, firm-coded language to handle each function and operation, such as to calculate all locked in coordinates and to indicate visually or audibly the distance for the user to return to the last locked-in location. |
