Pulse or digital communications – Spread spectrum – Frequency hopping
Patent
1997-12-23
2000-07-11
Pham, Chi H.
Pulse or digital communications
Spread spectrum
Frequency hopping
370343, 370481, 455 20, 455118, H04L 2730, H04J 100
Patent
active
060883812
ABSTRACT:
A system for transporting radio frequency (RF) signals across a RF network comprises a central transport unit and a remote transport unit. The frequencies of at least some of the RF signals to be transported hop in accordance with predetermined hopping sequences. The central transport unit uses the hopping sequences to convert the hopping frequencies into fixed frequencies for efficient transport through the RF network. The remote transport unit uses the hopping sequences to convert the fixed frequencies back to the original hopping frequencies. The transport system is also capable of reverse operation in the direction from the remote transport unit to the central transport unit.
REFERENCES:
patent: 4850036 (1989-07-01), Smith
patent: 5428602 (1995-06-01), Kemppainen
patent: 5506863 (1996-04-01), Meiden et al.
patent: 5537434 (1996-07-01), Persson et al.
Ericsson Inc.
Pham Chi H.
Samra Robert A.
Tran Maikhanh
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