Patent ID: 8081946

Claim:
An interference cancellation system configured to receive an analog input RF signal, said interference cancellation system comprising: cancel path circuitry comprising cancel path signal sampling circuitry and signal isolation and upconversion circuitry; and signal path circuitry comprising signal path signal sampling circuitry; wherein said cancel path signal sampling circuitry is coupled to sample said analog input RF signal to produce a cancel path analog or digital selected sample IF signal, and wherein said signal isolation and upconversion circuitry is coupled to receive said cancel path selected sample IF signal and to isolate and upconvert a signal within said cancel path analog or digital selected sample IF signal and to output said isolated signal as an analog cancellation RF signal; wherein said signal path circuitry is coupled to combine said analog input RF signal with said analog cancellation RF signal to create a modified analog input signal, wherein said signal path signal sampling circuitry is coupled to sample said modified analog input signal to produce a signal path analog or digital selected sample signal.