发明名称 Personal GPS navigation device
摘要 A navigation device is disclosed. In at least one embodiment, the navigation device includes a storage device to store map information; a processor to determine a route of travel based upon a current position of the navigation device and an input or selected destination position; and a display to display the current position on the map information corresponding to the determined route of travel, the display including relatively more detail of the map information being displayed upon the processor determining that a speed of a vehicle, in which the navigation device is located, is below a threshold speed.
申请公布号 US7925429(B2) 申请公布日期 2011.04.12
申请号 US20080292128 申请日期 2008.11.12
申请人 TOMTOM INTERNATIONAL B.V. 发明人 GEELEN PIETER
分类号 G01C21/36;G01C21/34;G01S1/00;G01S5/14;G01S19/48 主分类号 G01C21/36
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