Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater
Patent
1980-09-04
1983-03-01
Safourek, Benedict V.
Telecommunications
Carrier wave repeater or relay system
Portable or mobile repeater
343100ST, H04B 719
Patent
active
043756972
ABSTRACT:
A satellite squadron or cluster formation is disposed in a predetermined location in the geostationary orbit, including a plurality of controllably maneuverable communication satellites and a centrally located switching and control satellite. The satellites comprise a simulated geostationary communications platform made up of discrete modules which are not physically attached together. The satellites are grouped together in assigned positions in a relatively close formation, and are provided with cross-link intersatellite radio communications. The switching and control satellite detects the relative position of the communication satellites and sends control signals to maintain them in their assigned positions in the formation. Communication signals are relayed from one place on the earth to another via the satellite cluster formation by utilizing the control satellite as a switching satellite. Each satellite has a communications down link providing communications with selected earth stations in a predetermined frequency band. When a signal is received by one of the satellites, it converts the signal to the cross-link frequency band and transmits it to the control satellite, which retransmits the signal to a different satellite, where it is converted to that satellite's down link frequency band, and retransmitted to the earth. In this manner, a signal originating in one continent, for example, may travel to the satellite cluster at one frequency band, and may be relayed to another continent at another frequency band. Thus, all satellite earth stations at their various frequency bands are mutually compatible.
REFERENCES:
patent: 3349398 (1967-10-01), Werth
patent: 3706037 (1972-12-01), Lundgren, Jr.
patent: 3836969 (1974-09-01), Bond et al.
patent: 3852750 (1974-12-01), Klein
patent: 4004098 (1977-01-01), Shimasaki
Hammond N. B.
Hughes Aircraft Company
Karambelas A. W.
Oberheim E. F.
Safourek Benedict V.
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