Feedback cancellation system and method

Details Feedback cancellation system and method Feedback cancellation system and method

2008-12-04

2011-12-20

Tra, Quan (Department: 2816)

Telecommunications

Receiver or analog modulated signal frequency converter

With wave collector

C455S011100, C455S063100, C455S296000

Reexamination Certificate

active

08081945

ABSTRACT:
A system and method for detecting antenna coupling and for providing feedback cancellation in response to the antenna coupling includes a signal feedback cancellation circuit configured to be coupled between a signal receiver and a signal transmitter. The feedback cancellation circuit is responsive to received signals, amplified signals and the detection of signal coupling between a receiving antenna any transmitting antenna, for providing a feedback cancellation signal to a signal amplifier. The feedback cancellation circuit may employ time domain or frequency domain methods. In the case of a time domain method, the feedback cancellation circuit may further include a White noise generator which serves to the tune or adjust the feedback cancellation circuit.

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