Fixed ground track satellite constellation and user terminal (US6556808)

Patent	Pub.Date	Inventor	Assignee	Title
US4809935	1989-03	Draim	Analytic Services, Inc.	Satellite continuous coverage constellations
US5075682	1991-12	Dehnert		Antenna mount and method for tracking a satellite moving in an inclined orbit
US5119225	1992-06	Grant et al.	British Aerospace Public Limited Company	Multiple access communication system
US5551624	1996-09	Horstein et al.	TRW Inc.	Medium-earth-altitude satellite-based cellular telecommunications
US5579536	1996-11	Stackman et al.	Motorola, Inc.	Method and apparatus for establishing communication links between non-stationary communication units
US5582367	1996-12	Castiel et al.	Mobile Communications Holdings, Inc.	Elliptical orbit satellite, system, and deployment with controllable coverage characteristics
US5621415	1997-04	Tuck	Teledesic Corporation	Linear cell satellite system
US5722042	1998-02	Kimura et al.	ATR Optical and Radio Communications Research Laboratories	Satellite communication system having double-layered earth orbit satellite constellation with two different altitudes
US5729240	1998-03	Bourgeois	Alcatel Telspace	Method of controlling a non-geostationary satellite antenna positioner
US5765098	1998-06	Bella	Agence Spatiale Europeenne	Method and system for transmitting radio signals between a fixed terrestrial station and user mobile terminals via a network of satellites
US5797083	1998-08	Anderson	Hughes Electronics Corporation	Self-aligning satellite receiver antenna
US5867783	1999-02	Horstein et al.	TRW Inc.	Medium-earth-altitute satellite-based cellular telecommunications
US5931417	1999-08	Castiel	Mobile Communications Holdings, Inc.	Non-geostationary orbit satellite constellation for continuous coverage of northern latitudes above 25° and its extension to global coverage tailored to the distribution of populated land masses on earth
US5978653	1999-11	Taylor et al.	Motorola, Inc.	Method and apparatus for providing additional resources in a satellite communication system
US6019318	2000-02	Cellier et al.	Hugehs Electronics Corporation	Coordinatable system of inclined geosynchronous satellite orbits
US6078284	2000-06	Levanon	QUALCOMM Incorporated	Passive position determination using two low-earth orbit satellites
US6085090	2000-07	Yee et al.	Motorola, Inc.	Autonomous interrogatable information and position device
US6088571	2000-07	Kane et al.	Motorola, Inc.	Method and apparatus for multi-constellation satellite broadcast with error correction
US6097929	2000-08	Hassall et al.	Telogy Networks, Inc.	Method and system for monitoring and controlling a single channel per carrier satellite link between two remote earth stations
US6102335	2000-08	Castiel et al.	Mobile Communications Holdings, Inc.	Elliptical orbit satellite, system, and deployment with controllable coverage characteristics
US6122596	2000-09	Castiel	Mobile Communications Holdings, Inc.	Non-geostationary orbit satelite constellation for continuous preferential coverage of northern latitudes
US6126116	2000-10	Cellier	Hughes Electronics Corporation	Coordinatable system of inclined eccentric geosynchronous orbits
US6198907	2001-03	Torkington et al.	Motorola, Inc.	Satellite communications systems using satellites in a zero-drift constellation

Foreign References:

Publication	Date	IPC Code	Assignee	Title
EP0588697	1994-03	H04B 7/185	FRANCE TELECOM	Telecommunication network with low altitude orbiting satellite constellation and high latitude earth station for orbit interconnection
EP0601293	1994-06	G01S 5/12	MOTOROLA INC	Intelligent position tracking
EP0601293	1994-06	G01S 5/12	MOTOROLA INC	Intelligent position tracking
EP0836290	1998-04	B64G 1/00	NORTEL NETWORKS CORPORATION	Satellite communication method using satellites on substantially circular orbit, inclined to the equatorial plane with period matching the earth period
FR2685833	1993-07	B64G 1/00	AGENCE SPATIALE EUROPEENNE	RESEAU DE SATELLITES DE COMMUNICATION.

Other Abstract Info:

DERABS G2000-586917

Other References:

Wang, Chia-Jiu: "Structural Properties of a Low Earth Orbit Satellite Constellation--The Walker Delta Network"--Proceedings of the Annual Military Communications Conference (MILCOM), US, New York, IEEE, vol. CONF. 12, 1993, pp. 968-972, XP000410896, p. 968, right-hand column, line 21--p. 969, left-hand column, line 5.

Nominate this for the Gallery...


		Copyright © 1997-2010 Thomson Reuters
		Subscriptions \| Web Seminars \| Privacy \| Terms & Conditions \| Site Map \| Contact Us \| Help