发明授权
- 专利标题: Method and apparatus for displaying a map
- 专利标题(中): 用于显示地图的方法和装置
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申请号: US11126952申请日: 2005-05-11
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公开(公告)号: US07801676B2公开(公告)日: 2010-09-21
- 发明人: Takeshi Kurosawa , Mizuki Yuasa
- 申请人: Takeshi Kurosawa , Mizuki Yuasa
- 申请人地址: JP Tokyo
- 专利权人: Alpine Electronics, Inc.
- 当前专利权人: Alpine Electronics, Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: Brinks Hofer Gilson & Lione
- 优先权: JP2004-141879 20040512
- 主分类号: G01C21/30
- IPC分类号: G01C21/30 ; G01C21/32
摘要:
A navigation apparatus for displaying a map that includes building symbols representing buildings. The navigation apparatus includes a map-drawing unit that draws the map of an area from map data on shapes and positions of the building symbols at a selected map scale and a displaying unit that displays the drawn map. In the navigation apparatus in a nighttime-map displaying mode, the map-drawing unit draws the entirety of each building symbol in a bright color to generate the map when the map scale exceeds a predetermined threshold and draws part of the building symbol in a bright color to generate the map when the map scale does not exceed the predetermined threshold.
公开/授权文献
- US20050261826A1 Method and apparatus for displaying a map 公开/授权日:2005-11-24