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:
Dec. 26, 2006

Filed:

Mar. 16, 2005
Applicants:

Lance Douglas Pitt, Seattle, WA (US);

Leslie Johann Lamprecht, Seattle, WA (US);

Jeffrey Thomas Martin, Seattle, WA (US);

Inventors:

Lance Douglas Pitt, Seattle, WA (US);

Leslie Johann Lamprecht, Seattle, WA (US);

Jeffrey Thomas Martin, Seattle, WA (US);

Assignee:

TeleCommunication System, Inc., Annapolis, MD (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 7/185 (2006.01);
U.S. Cl.
CPC ...
Abstract

Locating satellites (e.g., GPS) are culled into a preferred group having a longest dwell time based on a time passing through an ellipsoid arc path through a cone of space, and communicated to mobile devices within a particular region (e.g., serviced by a particular base station). The locating satellites may be culled into a prioritized list. Each satellite is assigned an order of precedence based on a remaining dwell time within a primary inverted cone. Thus, a number 'N' of satellite's ephemeris data may be used, along with a preferred 'order of precedence' for secondary satellites to be used as backups as necessary.


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