RECEIVER CIRCUIT AND ASSOCIATED METHOD CAPABLE OF CORRECTING ESTIMATION OF SIGNAL-NOISE CHARACTERISTIC VALUE
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United States of America Patent
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Issued Date -
Dec 29, 2016
app pub date -
Sep 8, 2015
filing date -
Jun 26, 2015
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Abstract
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.
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