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US07739029B2 Navigation apparatus and method with traffic ranking and display 失效
具有流量排名和显示的导航装置和方法

Navigation apparatus and method with traffic ranking and display
摘要:
A navigation apparatus and method store traffic information and searches for a guidance route to a specified destination. The apparatus and method calculate congestion degrees for the guidance route based on a factor by time period and the stored traffic information and display the guidance route and the congestion degrees by time period.
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