NAVIGATION DEVICE AND METHOD FOR MARKING TRAFFIC CONDITIONS ON NAVIGATION MAP

摘要

A navigation device includes a data storage for storing a navigation map, and a keyword database. The keyword database stores a number of keywords. The number of keywords are grouped into road keywords and traffic condition keywords. Each road keyword is mapped to one road on the navigation map and each traffic condition keyword corresponds to a particular traffic condition. The navigation device detects road keywords and the traffic condition keywords associated with the detected road keywords in the received audio and marks the traffic condition on the corresponding road on the navigation map according to the detected road keyword and any associated traffic condition.