Patent
Map difference data delivery device, map difference data delivery method and on-vehicle navigation system
Nomura Toshio
- 06 Nov 2014
TL;DR: In this article, the authors proposed a map difference data delivery device capable of efficiently utilizing a remaining capacity of a map data storage area in a map storage provided to the on-vehicle navigation system.
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Abstract: PROBLEM TO BE SOLVED: To provide a map difference data delivery device capable of efficiently utilizing a remaining capacity of a map data storage area in a map storage provided to the on-vehicle navigation system.SOLUTION: When a remaining capacity of a map data storage area in a navigator storage 34 in a navigation apparatus 3 gets smaller and when a map difference data delivery device determines that it is difficult to deliver all of difference groups included in a next delivery schedule (S13: NO), the map difference data delivery device determines a combination of the next records in which data amount is the maximum within a range that does not exceed the remaining capacity (S22). With this, the navigator storage 34 can store more difference groups in the map data storage area.
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Map data distribution apparatus, communication terminal, and map distribution method
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Patent
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TL;DR: In this article, an update information providing server 20 creates update order information indicating that the data are updated in order from the kind designated by the user in the map data comprising a plurality of kinds of data.
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Map data storage controller and map data storage control method
Yokota Rie,Aizawa Hajime +1 more
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TL;DR: In this paper, a map data storage controller and a control method for enabling a user to select area of map data to be stored in a flash memory easily is presented, where the free space capacity of a map storage part 240 is compared with the capacity of map stored in each area stored in the map data medium 200 to find area of data having capacity being smaller than the free storage capacity, generate an area display screen displaying the obtained area, and display it in a display 200 Consequently, when the user sees the screen displaying it, he/she can select any area from among
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Map difference data creation device and map difference data creation method
Takayuki Watabe,高行 渡部,Hidetoshi Fujimoto,英俊 藤本,Takamitsu Suzuki,孝光 鈴木,Takayuki Suzuki,隆之 鈴木,Shibata Kaoru,薫 柴田,Mitsumizu Akio,明男 三水 +11 more
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TL;DR: In this article, the authors proposed a map difference data creation device capable of controlling the traffic transmitted to a vehicle and creating map-difference data ensuring a road network, where a map change requiring the addition of roads "e" and "f" on a first version of a map data occurs, and the second version of the map data is updated to reflect the added roads.
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