Processor-controlled variable gain cellular network...

Details Processor-controlled variable gain cellular network... Processor-controlled variable gain cellular network...

2006-07-13

2009-02-03

Le, Thanh C (Department: 2618)

Telecommunications

Carrier wave repeater or relay system

Portable or mobile repeater

C455S015000

Reexamination Certificate

active

07486929

ABSTRACT:
A system and method for optimal adjustment of gain of a network amplifier, and for substantially reducing oscillation produced by a network amplifier. The network amplifier includes first and second antennas for the transmission of signals between a handset and a base station. The signals are amplified by first and second variable gain modules by an amplification factor as determined by a control circuit. The control circuit determines the optimal value of the amplification factors by analyzing the signals. In the event that an oscillation is detected, the control circuit adjusts the amplification factors in a manner that substantially reduces the oscillation.

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patent: 5815795 (1998-09-01), Iwai
patent: 6892080 (2005-05-01), Friesen et al.
patent: 7233771 (2007-06-01), Proctor, Jr. et al.
patent: 2005/0272367 (2005-12-01), Rodgers et al.
patent: 2007/0071128 (2007-03-01), Meir et al.

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