Patent ID: 7486929

Claim:
A network amplifier, comprising: a first antenna for communicating signals to and from a base station; a second antenna for communicating signals to and from a handset; a first variable gain module having an input coupled to the first antenna and an output coupled to the second antenna, the first variable gain module applying a first amplification factor to first signals received from the base station; a second variable gain module having an input coupled to the second antenna and an output coupled to the first antenna, the second variable gain module applying a second amplification factor to second signals received from the handset; and a control circuit coupled to the first and second variable gain modules, wherein the control circuit is configured to: analyze at least one of the first signals and the second signals to detect the presence of an oscillation, and in the event that an oscillation is detected, set the first amplification factor and the second amplification factor for substantially reducing the oscillation; and set the first amplification factor and the second amplification factor so that, in the event that oscillation is not detected, signals transmitted from the first antenna have sufficient power to be transmitted to the base station and signals transmitted from the second antenna have sufficient power to be transmitted to the handset.