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:
Jun. 06, 2006
Filed:
Mar. 25, 2004
Applicant:
Paul W. Mcburney, San Francisco, CA (US);
Inventor:
Paul W. McBurney, San Francisco, CA (US);
Assignee:
Eride, Inc., San Francisco, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01S 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A bootstrapping tandem navigation receiver system includes two independent navigation receivers. A first uses coherent detection and makes carrier-phase pseudorange measurements. A second uses non-coherent detection and a longer predetection interval and thus can acquire satellites in very weak signal environments. The second navigation receiver delivers a bootstrapping message to the first receiver that allows it to directly acquire the satellites without searching for them. The first navigation receiver then drives to find carrier phase lock and produces its more accurate measurements.