<p>Radio frequency filtering includes receiving a signal and detecting a change in the direct current (DC) offset of the signal or a change in a component that affects the DC offset of the signal. The filtering also includes setting a cut-off frequency of a high-pass filter to a first frequency value in response to the detected change and filtering the signal using the high-pass filter with the cutoff frequency set to the first frequency value. The filtering further includes adjusting the cutoff frequency of the high-pass filter from the first frequency value to a second frequency value while filtering the signal using the high-pass filter where the second frequency value is less than the first frequency value.</p>
申请公布号
WO2009042280(A1)
申请公布日期
2009.04.02
申请号
WO2008US70467
申请日期
2008.07.18
申请人
NANOAMP SOLUTIONS, INC. (CAYMAN);HWANG, CHIEN-MEEN;SHEN, ANN, P.