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.

Date of Patent:
Feb. 19, 2002

Filed:

Apr. 10, 2000
Applicant:
Inventors:

Jim Green, Los Altos Hills, CA (US);

Richard Williams, Christ Church, NZ;

Assignee:

Trimble Navigation Limited, Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 2/102 ;
U.S. Cl.
CPC ...
G01C 2/102 ;
Abstract

An integrated position and direction system is disclosed that includes a digital compass and a satellite positioning system having a receiver adapted to receive satellite position determining signals. Direction is determined using the digital compass and heading is determined using the SATPOS. When the integrated position and direction system is moving, heading is indicated. When the integrated position and direction system is not moving direction is indicated. The integrated position and direction system automatically switches between the display of heading (when the integrated position and direction system is moving) and the display of direction (when the integrated position and direction system is not moving).


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