Method and system for object tracking and communication

Details Method and system for object tracking and communication Method and system for object tracking and communication

2002-05-24

2009-02-10

Nguyen, David Q (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S012100, C455S013100, C455S013200, C455S017000, C455S427000, C455S428000

Reexamination Certificate

active

07489927

ABSTRACT:
A system and method for communicating between ground stations and mobile satellites effectively eliminates the need for transferring information from one ground station to another. Communication between a ground station and a mobile satellite is accomplished via an intermediate network of geosynchronous control satellites. The mobile satellite is positioned within a three-dimensional cellular grid formed by the network of geosynchronous satellites. This system is particularly applicable to a terrestrial network communicatively coupled to the geosynchronous network via one or more ground stations. The terrestrial network of ground stations no longer needs to perform expensive, time-consuming and manual synchronization and hand-off procedures. Instead, the position of a ground station antenna can remain fixed on one specific satellite in the geosynchronous network, while the mobile satellite is tracked by the geosynchronous network utilizing the three-dimensional cellular grid formed by intermediate control satellites.

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