发明名称 NAVIGATION DEVICE, NAVIGATION METHOD, PROGRAM THEREFOR, AND RECORDING MEDIUM THEREFOR
摘要 <p>A stop detection unit 112 detects that a vehicle is stopped without utilizing the result of detection by a vehicle speed sensor 171 which employs vehicle speed pulses. And a vehicle speed pulse accuracy decision unit 113 detects the level of vehicle speed pulse accuracy according to the presence or absence of vehicle speed pulses in the state in which stopping of the vehicle is being detected. The degree to which the vehicle speed pulses are employed in processing by a navigation processing unit 116 to perform sensor offset measurement processing, calculation processing for the distance traveled, map matching processing, and the like is varied according to the vehicle speed accuracy which has been obtained in this manner. As a result, it is possible to present navigation information of good accuracy to the user.</p>
申请公布号 EP1980822(A1) 申请公布日期 2008.10.15
申请号 EP20070706966 申请日期 2007.01.18
申请人 PIONEER CORPORATION 发明人 OKAMOTO, TATSUYA;IMADA, SEIJI;TANAKA, KAZUAKI
分类号 G01C21/28;G01P3/00;G01P13/00;G08G1/0969 主分类号 G01C21/28
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