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:
Sep. 13, 2005

Filed:

Mar. 28, 2002
Applicants:

Thomas Michael King, Tempe, AZ (US);

George Jeffrey Geier, Scottsdale, AZ (US);

Rodney Patrick Landers, Grayslake, IL (US);

Michael Joseph Slade, Libertyville, IL (US);

Paul Declerck, Palatine, IL (US);

Inventors:

Thomas Michael King, Tempe, AZ (US);

George Jeffrey Geier, Scottsdale, AZ (US);

Rodney Patrick Landers, Grayslake, IL (US);

Michael Joseph Slade, Libertyville, IL (US);

Paul DeClerck, Palatine, IL (US);

Assignee:

Motorola, Inc., Schaumburg, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C021/26 ;
U.S. Cl.
CPC ...
Abstract

Method in a Global Positioning System (GPS) receivers, including determining pseudorange (PNR) measurements for at least four satellites (), determining a coarse time () corresponding to the pseudorange measurement, determining an offset time () between a periodic GPS event of one of the four satellites and the coarse time, determining a time correction delta () based upon the period of the Periodic GPS event, the offset time and the coarse time if an error of the coarse time is less than ½ the period of the periodic GPS event, and determining corrected time () based upon the coarse time and the time correction delta if the error of the coarse time is less than ½ the period of the periodic GPS event.


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