Title:
POSITION-DETERMINING METHOD AND SYSTEM
Document Type and Number:
Japanese Patent JP2002181569
Kind Code:
A
Abstract:
To solve the problem of positioning by using the estimation navigation method when a user is outside the effective range of a GPS.
A starting position is determined by tracing the move from the first position outside the effective range of the GPS to the second position within the effective range of the GPS. After that, the starting position is determined by inversely tracing from the known position.
More Like This:
Inventors:
SLADEN PETER
Application Number:
JP2001335585A
Publication Date:
June 26, 2002
Filing Date:
October 31, 2001
Export Citation:
Assignee:
NOKIA CORP
International Classes:
G01C21/00; G01C21/12; G01C21/28; G01S5/14; G01S19/49; (IPC1-7): G01C21/00; G01C21/12; G01S5/14
Attorney, Agent or Firm:
Hagiwara Makoto