Architecture for wireless transmission of high rate optical...

Optical communications – Hybrid communication system

Reexamination Certificate

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C398S185000, C398S205000, C370S314000

Reexamination Certificate

active

07103279

ABSTRACT:
An apparatus for a wireless transmission of high data rate signals such as received from an optical interface including gigabit fiber channel or a sonet. The architecture combines direct detection of the optical signal with clock and data recovery circuit and a differential signal encoder which is preferably a differential quadrature phase shift encoder and modulator pair. A millimeter wave, local oscillator and up conversion chain converts the optical input signal to a microwave carrier. In the opposite direction, the down converted signal is non-coherently phase detected and fed to a pair of synchronized clock and data recovery circuits to recover I and Q channel signals. These recovered signals are then combined prior to re-timing before they are fed back to the optical transceiver.

REFERENCES:
patent: 6480477 (2002-11-01), Treadaway et al.
Noreus, J., et al., “System Considerations for Hardware Parameters in a 60 GHz WLAN”.
GigaLink Product Specification.
Loea Communications Corporation, Loea Communications Corporation Solving the “Last Mile Problem” with the “Last 10 Miles Solution” (2001).
SierraCom, “SierraCom's FiberConnection™ Series 60 Ghz Radio for US Markets,” ISO-9001 Certified Facility.

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