Title:
自律型GPSの高度化方法および装置
Document Type and Number:
Japanese Patent JP2008538234
Kind Code:
A
Abstract:
A method and apparatus for determining a location of a remote receiver is described. The remote receiver receives satellite tracking data from a server, which it stores in memory. This satellite tracking data has a predetermined validity time period associated with it. When a connection cannot be established between the remote receiver and the server and the predetermine validity time period of the satellite tracking data has expired, the remote receiver calculates acquisition assistance data using the expired satellite tracking data for use with obtaining ephemeris data from a satellite. The remote receiver then calculates its position using the receiver ephemeris data.
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Inventors:
Frank van diggeren
Podsivarov, Sergey
Charles Abraham
Podsivarov, Sergey
Charles Abraham
Application Number:
JP2007555190A
Publication Date:
October 16, 2008
Filing Date:
February 09, 2006
Export Citation:
Assignee:
Global Locate, Inc.
International Classes:
G01S19/05; G01S1/00; G01S19/25; G01S19/42; G01C21/00
Attorney, Agent or Firm:
Kenzo Hara International Patent Office