Detector for high frequency amplitude modulation distortion
A method in a signal processor includes equalizing, with an equalizer of the signal processor, a signal corresponding to data read from a storage medium to generate an equalized signal, determining a signal level of the equalized signal, determining an expected signal level of the equalized signal, performing a comparison between the signal level of the equalized signal and the expected signal level, adjusting, after the equalized signal is output from the equalizer, an amplitude of the equalized signal by an amount determined based on the comparison of the signal level of the equalized signal and the expected signal level, and decoding the equalized signal after adjusting the amplitude of the equalized signal.
Marvell International Ltd.
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Jingfeng Hoatian
Liu Zhang