Invention Grant
- Patent Title: Navigation apparatus, navigation system and route search method
- Patent Title (中): 导航仪,导航系统和路线搜索方法
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Application No.: US11730136Application Date: 2007-03-29
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Publication No.: US07908081B2Publication Date: 2011-03-15
- Inventor: Akio Sumizawa , Takayuki Sakakibara , Kenichi Maruta
- Applicant: Akio Sumizawa , Takayuki Sakakibara , Kenichi Maruta
- Applicant Address: JP Zama-shi
- Assignee: Xanavi Informatics Corporation
- Current Assignee: Xanavi Informatics Corporation
- Current Assignee Address: JP Zama-shi
- Agency: Crowell & Moring LLP
- Priority: JP2006-093365 20060330
- Main IPC: G01C21/30
- IPC: G01C21/30 ; G01C21/32

Abstract:
This navigation apparatus includes a road setting unit that sets a road to be traversed between a departure point and a destination, the road being constituted by links for each of which a predetermined link cost is set, a replacement unit that replaces the links constituting the road to be traversed that has been set by the road setting unit, with a virtual link whose link cost is set to be smaller than the total of the link costs of the links for the road to be traversed, and a route search unit that searches for a recommended route from the departure point to the destination, based upon link costs set for links that constitute roads other than the road to be traversed, and the link cost set for the virtual link with which the road to be traversed has been replaced by the replacement unit.
Public/Granted literature
- US20080071471A1 Navigation apparatus, navigation system and route search method Public/Granted day:2008-03-20
Information query
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