Sharing AGC loop between demodulator and spectrum analysis...

Details Sharing AGC loop between demodulator and spectrum analysis... Sharing AGC loop between demodulator and spectrum analysis...

2008-05-22

2011-12-27

Nguyen, Duc M (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Measuring or testing of receiver

C455S226400, C455S232100, C455S247100, C455S311000

Reexamination Certificate

active

08086199

ABSTRACT:
Systems and methods for sharing an AGC loop between a wireless data demodulator and a spectrum analysis module that operates simultaneously with the data demodulator. In one embodiment, a predetermined hold time prevents the AGC loop from changing gain too often, thereby allowing the spectrum analysis module to collect reliable data. In another embodiment, the hold time may be extended to coincide with a spectrum analysis event, such as a boundary of an FFT block. In still another embodiment, an FFT valid signal is provided such that collected FFT blocks can be designated as suspect and then subsequently processed accordingly.

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