MAP UPDATING SYSTEM AND MAP UPDATING PROGRAM USING DYNAMIC CACHE MEMORY
    1.
    发明申请
    MAP UPDATING SYSTEM AND MAP UPDATING PROGRAM USING DYNAMIC CACHE MEMORY 有权
    地图更新系统和地图更新程序使用动态缓存记忆

    公开(公告)号:US20110125962A1

    公开(公告)日:2011-05-26

    申请号:US12919318

    申请日:2009-02-26

    IPC分类号: G06F12/08

    CPC分类号: G01C21/32

    摘要: A map updating system includes: an update processing unit for performing update processing by reading data required in the update processing from a cache area of a memory when the data are stored in the cache area and from a map database when the data are not stored in the cache area; a cache storage unit for storing the data read by the update processing unit in the cache area; a processing memory capacity determination unit for determining a processing memory capacity, which is a capacity of the memory required as an update processing area, on the basis of the content of map data to be subjected to the update processing; and a cache capacity determination unit for determining a cache capacity, which is a capacity of the memory allocated to the cache area, on the basis of the processing memory capacity.

    摘要翻译: 地图更新系统包括:更新处理单元,用于当数据存储在高速缓存区域中时,从存储器的高速缓存区域读取更新处理中所需的数据,并且当数据未被存储在地图数据库中时,执行更新处理 缓存区; 高速缓存存储单元,用于将由更新处理单元读取的数据存储在高速缓存区域中; 处理存储器容量确定单元,用于基于要进行更新处理的地图数据的内容来确定作为更新处理区域所需的存储器的容量的处理存储器容量; 以及高速缓存容量确定单元,用于基于处理存储器容量确定作为分配给高速缓存区域的存储器的容量的高速缓存容量。

    Map updating system and map updating program using dynamic cache memory
    2.
    发明授权
    Map updating system and map updating program using dynamic cache memory 有权
    地图更新系统和地图更新程序使用动态缓存

    公开(公告)号:US08769237B2

    公开(公告)日:2014-07-01

    申请号:US12919318

    申请日:2009-02-26

    IPC分类号: G06F13/00

    CPC分类号: G01C21/32

    摘要: A map updating system includes: an update processing unit for performing update processing by reading data required in the update processing from a cache area of a memory when the data are stored in the cache area and from a map database when the data are not stored in the cache area; a cache storage unit for storing the data read by the update processing unit in the cache area; a processing memory capacity determination unit for determining a processing memory capacity, which is a capacity of the memory required as an update processing area, on the basis of the content of map data to be subjected to the update processing; and a cache capacity determination unit for determining a cache capacity, which is a capacity of the memory allocated to the cache area, on the basis of the processing memory capacity.

    摘要翻译: 地图更新系统包括:更新处理单元,用于当数据存储在高速缓存区域中时,从存储器的高速缓存区域读取更新处理中所需的数据,并且当数据未被存储在地图数据库中时,执行更新处理 缓存区; 高速缓存存储单元,用于将由更新处理单元读取的数据存储在高速缓存区域中; 处理存储器容量确定单元,用于基于要进行更新处理的地图数据的内容来确定作为更新处理区域所需的存储器的容量的处理存储器容量; 以及高速缓存容量确定单元,用于基于处理存储器容量确定作为分配给高速缓存区域的存储器的容量的高速缓存容量。