Ultra-narrow bandwidth radio frequency communications link

Details Ultra-narrow bandwidth radio frequency communications link Ultra-narrow bandwidth radio frequency communications link

2006-03-08

2009-12-29

Pathak, Sudhanshu C (Department: 2611)

Pulse or digital communications

Transceivers

C375S151000, C375S153000, C455S423000, C455S073000, C455S086000

Reexamination Certificate

active

07639734

ABSTRACT:
The present invention is a dramatically enhanced RF link for low-data-rate applications (1-100 bps), using one or more transmitters to communicate with one or more receivers, at dramatically enhanced ranges. The receiver of the present invention can rapidly search, detect, and lock in on narrow band signal transmissions, that may be present in a much larger frequency band and which may be changing frequency during the duration of the message. These receivers enable ultra-low noise floor detection of longer range, more highly attenuated, signal transmissions, by decreasing the receiver bandwidth.

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