发明申请
- 专利标题: NAVIGATION SYSTEM DATA BASE SYSTEM
- 专利标题(中): 导航系统数据库系统
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申请号: US13402539申请日: 2012-02-22
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公开(公告)号: US20120215806A1公开(公告)日: 2012-08-23
- 发明人: Alexey Pryakhin , Peter Kunath , Juergen Welscher
- 申请人: Alexey Pryakhin , Peter Kunath , Juergen Welscher
- 申请人地址: DE Karlsbad
- 专利权人: Harman Becker Automotive Systems GmbH
- 当前专利权人: Harman Becker Automotive Systems GmbH
- 当前专利权人地址: DE Karlsbad
- 优先权: EP11155710.4 20110223
- 主分类号: G06F17/30
- IPC分类号: G06F17/30
摘要:
A system for performing a similarity search in a navigation device data base uses a metric index structure. The index structure includes a plurality of nodes. When a query object is received, a node of the index structure which is associated with at least one object is accessed. A distance between the query object and the at least one object is determined in accordance with a distance metric. Based on the determined distance, another node of the index structure is selectively accessed.
公开/授权文献
- US09436702B2 Navigation system data base system 公开/授权日:2016-09-06