System and method for detecting valid indicator signals

Details System and method for detecting valid indicator signals System and method for detecting valid indicator signals

2005-02-15

2005-02-15

Ton, Dang (Department: 2666)

Multiplex communications

Communication over free space

Repeater

Reexamination Certificate

active

06856607

ABSTRACT:
Disclosed are systems and methods for signal detection. In one embodiment, a method is provided for detecting a signal. In this respect, the method comprises the steps of determining a normalized measure of a first power within a first frequency band relative to a second power within a second frequency band of an input signal in a network gateway, wherein the first frequency band is within the second frequency band; and, comparing the normalized measure of the first power with a predefined power threshold to detect a presence of an anticipated signal in the first frequency band.

REFERENCES:
patent: 5832379 (1998-11-01), Mallinckrodt
patent: 5835857 (1998-11-01), Otten

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