Telecommunications – Carrier wave repeater or relay system – Portable or mobile repeater
Reexamination Certificate
2005-10-11
2005-10-11
Maung, Nay (Department: 2684)
Telecommunications
Carrier wave repeater or relay system
Portable or mobile repeater
C455S137000, C455S273000
Reexamination Certificate
active
06954614
ABSTRACT:
A transponder system, which may be on a spacecraft, provides communications to and among user terminals for audio-bandwidth signals. The transponder includes a receiver for uplink signals, and a digital channelizer which separates the various independent uplinked signals. The separated uplinked signals are then grouped together with other signals destined for the same downlink beam, and routed to the corresponding beam input port of a beamformer. The beamformer, in turn, energizes or feeds those antenna elements which are required to form the desired antenna beam.In order to provide a capability for handling signals having a bandwidth greater than that of the audio signals, as might be required for providing the capacity to handle Internet signals, for example, a wideband augmentation equipment (WAE) is coupled in such a manner as to bypass the digital channelizer, to thereby provide a wideband path through the system, bypassing the narrowband channelizer.
REFERENCES:
patent: 5642358 (1997-06-01), Dent
patent: 6408164 (2002-06-01), Lazaris-Brunner et al.
patent: 6449244 (2002-09-01), Loseke
Duane Morris LLP
Lockheed Martin Corporation
Maung Nay
Sobutka Philip J
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