RECEIVER CIRCUIT AND ASSOCIATED METHOD CAPABLE OF CORRECTING ESTIMATION OF SIGNAL-NOISE CHARACTERISTIC VALUE

摘要

A receiver circuit capable of correcting an estimation of a signal-noise characteristic value (e.g., SNR) is provided. The receiver circuit includes an equalizer, a slicer, an estimation circuit and a correction circuit. The equalizer provides an equalized signal according to a received signal. The slicer interprets digital information in the equalized signal and accordingly provides a sliced signal. The estimation circuit provides an initial signal-noise characteristic value according to a difference between the equalized signal and the sliced signal. The correction circuit provides a corresponding correction value according to the initial signal-noise characteristic value, and corrects the initial signal-noise characteristic value according to the corresponding correction value to generate a corrected signal-noise characteristic value.