H - Electricity – 04 – B
Patent
H - Electricity
04
B
H04B 1/12 (2006.01)
Patent
CA 2162091
A distortion compensating circuit comprises a frequency control section, a filtering section and an eliminating section. Major frequencies are detected from an input signal including major signals having the major frequencies by a major frequency detector performing spectrum analysis of the input signal. Receiving the major frequencies, the frequency control section calculates distortion frequencies from the major frequencies based on predetermined formulae representing the nonlinear distortion. The predetermined formulae are stored in advance. The frequency control section generates frequency control signals indicating the distortion frequencies. After the input signal is divided into a first signal and a second signal, the filtering section extracts frequency components having the distortion frequencies from the first signal in response to the frequency control signals. The frequency components are eliminated from the second signal by combining the phase-reversed frequency component with the second signal by the eliminating section.
Corporation Nec
G. Ronald Bell & Associates
LandOfFree
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