Non-uniform multi-beam satellite communications system and method
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United States of America Patent
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Oct 8, 2002
Issued Date -
N/A
app pub date -
Apr 19, 2000
filing date -
Oct 17, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A satellite broadcast system and method, particularly useful for television signals, allows for local as well as nationwide broadcast service by allocating greater satellite resources to the more important local service areas. This is accomplished by broadcasting a non-uniform pattern of local service beams and designing the system to establish different service area priorities through factors such as the individual beam powers, sizes, roll-off characteristics and peak-to-edge power differentials. Frequency reuse is enhanced by permitting a certain degree of cross-beam interference, with lower levels of interference established for the more important service areas.
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