Patent ID: 8351851
Filing Date: 2013-01-08
Classification: H04B

Abstract:
1. A system for repeating signals, the system comprising: at least one receive antenna for receiving input signals; processing circuitry for processing the input signals to form repeated signals; at least one transmit antenna for transmitting the repeated signals; the processing circuitry including: an adaptive digital filter configured to generate cancellation signals that are added to the input signals to attenuate feedback signals in the input signals; a digital signal processor coupled to the adaptive digital filter and operable for adapting the filter; the processing circuitry configured for modifying the repeated signals with respect to the received input signals to differentiate the repeated signals that are received as feedback from the input signals and configured for utilizing the modified repeated signals for de-correlating, from the input signals, the repeated signals that are received as feedback signals by the receive antenna; a control circuit configured to dynamically modulate how the repeated signals are modified; the digital signal processor using the de-correlation to adapt the adaptive digital filter.