Symbol determination device and tap selection method

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12231173
APP PUB NO 20230361881A1
SERIAL NO

18021869

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The symbol determination device generates the plurality of estimated reception symbol sequences on the basis of the estimated transfer function of the transmission line represented by the tap gain value applied to each tap of the nonlinear filter including the plurality of taps and the plurality of candidate symbol sequences, determines the transmission symbol by the maximum likelihood sequence estimation on the basis of the determination target reception symbol sequence obtained from the reception signal sequence and each of the plurality of estimated reception symbol sequences, identifies the estimated transmission symbol corresponding to the determination target reception symbol sequence, calculates the new tap gain values on the basis of the determination target reception symbol sequence and the identified estimated transmission symbol sequence, updates the estimated transfer function by applying the calculated tap gain values to the taps of the transmission line estimation unit, and selects the tap to be used on the basis of the magnitude of the calculated new tap gain value and the predetermined tap gain threshold value.

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Patent Owner(s)

  • NEC CORPORATION AND NIPPON TELEGRAPH AND TELEPHONE CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kisaka, Yoshiaki Musashino, JP 65 233
Nakamura, Masanori Musashino, JP 198 1714
Taniguchi, Hiroki Musashino, JP 86 738
Yamamoto, Shuto Musashino, JP 20 23

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