The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 23, 2008
Filed:
Jul. 14, 2006
Daniel J. Eslinger, Redondo Beach, CA (US);
Jing Sun, Torrance, CA (US);
Richard T. Sharpe, Torrance, CA (US);
Frederick W. Nelson, Waukee, IA (US);
Terence D. Pickett, Urbandale, IA (US);
Ronald R. Hatch, Wilmington, CA (US);
Daniel J. Eslinger, Redondo Beach, CA (US);
Jing Sun, Torrance, CA (US);
Richard T. Sharpe, Torrance, CA (US);
Frederick W. Nelson, Waukee, IA (US);
Terence D. Pickett, Urbandale, IA (US);
Ronald R. Hatch, Wilmington, CA (US);
Navcom Technology, Inc., Torrance, CA (US);
Abstract
The present invention includes a method for a combined use of a local positioning system, a local RTK system and a regional, wide-area, or global differential carrier-phase positioning system (WADGPS) in which disadvantages associated with the local positioning system, the RTK and the WADGPS navigation techniques when used separately are avoided. The method includes determining a first position of the object based on information from the WADGPS, and determining a second position of the object based on position information from a local positioning/RTK positioning system. Thereafter, position determined by the WADGPS and the position determined by the local positioning/RTK positioning system are compared. The WADGPS position is used for navigating the object when the WADGPS position and local positioning/position differ by more than a predefined threshold, and using the local positioning/RTK position for navigating the object when the WADGPS position and local positioning/RTK position differ by less than the predefined threshold.