H - Electricity – 03 – K
Patent
H - Electricity
03
K
H03K 5/01 (2006.01) H04L 7/02 (2006.01) H04L 25/02 (2006.01)
Patent
CA 2046172
ABSTRACT OF THE DISCLOSURE In a device for estimating a sampled value of an impulse response from input and output signals of a decision circuit which performs a signal decision procedure for reproducing a digital signal, there are provided a first part, operatively coupled to the decision circuit, for generating a first average of absolute values of samples of decided values obtained from the output signal of the decision circuit, a second part, operatively coupled to the decision circuit, for generating a second average of absolute values of samples of equalized outputs obtained from the input signal of the decision circuit, and a third part, operatively coupled to the first and second means, for generating a ratio of the first average and the second average, the ratio being an estimate of the sampled value of the impulse response at a sampling point.
Awata Yutaka
Ueno Norio
Fetherstonhaugh & Co.
Fujitsu Limited
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