Title:
非対称チャネルの存在下における非線形判定帰還型等化のための方法および装置
Document Type and Number:
Japanese Patent JP4904400
Kind Code:
B2
Abstract:
Methods and apparatus are provided for determining the threshold position of one or more latches employed for decision-feedback equalization in the presence of a non-linear channel. A latch employed by a decision-feedback equalizer is positioned by constraining input data such that the input data only contains transitions from a first binary value; obtaining a plurality of samples of a single-sided data eye associated with the constrained input data; determining a threshold position of the latch based on the samples; and transforming the determined position to address the non-linearity of the channel. For example, a non-linear mapping table can map measured threshold values to transformed threshold values based on distance.
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Inventors:
Mobin, Mohamed, Es.
Sheets, Gregory, W.
Smith, Lane, A.
Tracy, Paul, Etch.
Sheets, Gregory, W.
Smith, Lane, A.
Tracy, Paul, Etch.
Application Number:
JP2009530486A
Publication Date:
March 28, 2012
Filing Date:
June 01, 2007
Export Citation:
Assignee:
Agia Systems Incorporated
International Classes:
H04B7/005; H04B3/06; H04L25/02; H04L25/03
Domestic Patent References:
| JP62271547A | ||||
| JP62220019A |
Foreign References:
| US20020060820 |
Attorney, Agent or Firm:
Okabe
Masao Okabe
Nobuaki Kato
Shinichi Usui
Takao Ochi
Asahi Shinmitsu
Katsumi Miyama
Masao Okabe
Nobuaki Kato
Shinichi Usui
Takao Ochi
Asahi Shinmitsu
Katsumi Miyama