Map difference data delivery system, map difference data delivery device, map data holding device, update management server, and map difference extraction server

A map difference data delivery system includes a map difference data delivery device and a map data holding device. The map difference data delivery device stores map difference data representing a difference between before and after version update and delivers the map difference data. The map diffe...

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Bibliographic Details
Main Authors Suzuki, Takamitsu, Atarashi, Yasutaka, Yano, Makoto
Format Patent
LanguageEnglish
Published 21.05.2019
Subjects
ADVERTISING
APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE
CRYPTOGRAPHY
DIAGRAMS
DISPLAY
EDUCATION
EDUCATIONAL OR DEMONSTRATION APPLIANCES
GLOBES
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
PLANETARIA
SEALS
SURVEYING
TESTING
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Summary:A map difference data delivery system includes a map difference data delivery device and a map data holding device. The map difference data delivery device stores map difference data representing a difference between before and after version update and delivers the map difference data. The map difference data includes map elements updated in the version update and dependent map elements by dating back to update of map elements corresponding to a different version. The dependent map elements are map elements that have a dependent relationship and need to be previously updated to avoid conflict with other map elements when updated. The map difference data delivery device groups data of the dependent map elements that have a dependent relationship in the same version.
Bibliography:Application Number: US201414783267