Optical communications system with back-up link

Details Optical communications system with back-up link Optical communications system with back-up link

2005-08-09

2005-08-09

Sedighian, M. R. (Department: 2633)

Optical communications

Hybrid communication system

C398S022000

Reexamination Certificate

active

06928248

ABSTRACT:
A device and method for operational switching between line-of-sight wireless communications transceivers requires evaluating a useful received signal strength intensity (RSSI) for a first transceiver, and switching to a second transceiver when the consequent bit error rate (BER) is not useful for the first transceiver. Subsequent switching between the first and second transceivers is accomplished in accordance with a timed sequence regimen that involves variable time delays, and considerations of RSSI changes within determined time periods. Preferably, the first transceiver transmits and receives on a laser beam and the second transceiver transmits and receives on a microwave beam.

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patent: 2002/0187769 (2002-12-01), Johnson et al.
patent: 1 067 730 (2001-01-01), None

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