Shinya Adachi

Traffic information providing system,traffic information expression method and device

Method and apparatus for transmitting position information on a digital map

Method for transmitting information on position on digital map and device used for the same

Map matching method, map matching device, database for shape matching, and shape matching device

Road information providing system and road information providing apparatus and road information generating method

Digital map shape vector encoding method and position information transfer method

Digital map position information compressing method and device

Positional information transmitting method of digital map

Method for transmitting positional information of digital map and device for executing it

Method and device for transmitting a run trace in probe car system