Prioritized list of potential culled satellite ephemeris...

Details Prioritized list of potential culled satellite ephemeris... Prioritized list of potential culled satellite ephemeris...

2006-12-26

2006-12-26

Tarcza, Thomas H. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a satellite

C342S359000

Reexamination Certificate

active

07154438

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.

REFERENCES:
patent: 4445118 (1984-04-01), Taylor et al.
patent: 6067045 (2000-05-01), Castelloe et al.
patent: 6580390 (2003-06-01), Hay
patent: 6650288 (2003-11-01), Pitt

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