Multiplex communications – Communication over free space – Repeater
Reexamination Certificate
2005-09-13
2005-09-13
Pham, Chi (Department: 2663)
Multiplex communications
Communication over free space
Repeater
Reexamination Certificate
active
06944140
ABSTRACT:
A data routing subsystem (200) for a communication satellite includes an inbound module (602) that accepts demodulated uplink data. The inbound module (602) includes a routing table (702) that stores queue tags (714) specifying downlink beam hop locations (302, 304) for the uplink data. The subsystem (200) also includes a self addressed packet switch (608) having an input port coupled to the inbound module (602), and an outbound module (610) coupled to an output port of the switch (608). A memory (804) in the outbound module (610) stores the uplink data in accordance with the downlink beam hop locations (302, 304). A multiple beam array antenna (116–122) is coupled to the outbound module (610). The multiple beam array antenna (116-122) includes a first feed element (116) assigned to a first downlink beam hop location (302) and a second feed element (118) assigned to a second downlink beam hop location (304).
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Berger Harvey L.
Harmon Garrick J.
Linsky Stuart T.
Nivens Dennis A.
Tramm Fred C.
Ferris Derrick W
Heal Noel F.
Northrop Grumman Corporation
Pham Chi
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