| 摘要 |
The present invention is related to an adaptive equalizer comprising: an equalizer filter ( 32 ) for filtering a distorted signal from a communication channel, having a data input ( 30 ) for receiving said distorted signal, a feedback signal input for a feedback control signal, and which generates an output signal at an output node ( 35 ); circuitry ( 46 ) for processing said output signal and generating said feedback control signal, the circuitry comprising a first means ( 38 ) for measuring a short-term-amplitude signal of said output signal, a second means ( 38 ) for measuring a long-term-amplitude signal of said output signal, a comparator means ( 43 ) that compares said short-term-amplitude signal and said long-term-amplitude signal and that determines the evolution of said feedback control signal, arranged such that said distorted signal is compensated for its higher frequency attenuation in said communication channel.
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