公开(公告)号：US20090268802A1

公开(公告)日：2009-10-29

申请号：US12109022

申请日：2008-04-24

Applicant: Chih-chieh Wang

Inventor： Chih-chieh Wang

IPC: H03H7/30

CPC classification number: H04L25/03057 ,  H04L25/03203 ,  H04L25/03292

Abstract: A decision feedback equalizer having a adjusting device and method thereof are described. The decision feedback equalizer having an adjusting device includes a feed-forward filter, a decision device, a feedback filter, the adjusting device, and a summation device. The feed-forward filter generates a forwarding signal (Sff) based on an input signal (Si). The decision device generates a first decision (Sd1) signal and a second decision signal (Sd2) which are associated with the summation signal (Ssu). The feedback filter receives the second decision signal (Sd2) for generating a feedback signal (Sfb). The adjusting device adjusts the first decision signal (Sd1) according to a first weighting value (V1) for generating a first adjusted signal (Sa1) and transmitting the first adjusted signal (Sa1) to the feed-forward filter. The adjusting device further adjusts the feedback signal (Sfb) according to a second weighting value (V2) for generating a second adjusted signal (Sa2). The summation device receives the forwarding signal (Sff) and the second adjusted signal (Sa2) for generating a summation signal (Ssu) and issuing the summation signal (Ssu) to the decision device.

Abstract translation: 描述了具有调整装置及其方法的判定反馈均衡器。 具有调整装置的判定反馈均衡器包括前馈滤波器，判定装置，反馈滤波器，调整装置以及求和装置。 前馈滤波器基于输入信号（Si）生成转发信号（Sff）。 判定装置产生与求和信号（Ssu）相关联的第一判定（Sd1）信号和第二判定信号（Sd2）。 反馈滤波器接收用于产生反馈信号（Sfb）的第二判定信号（Sd2）。 调整装置根据用于生成第一调整信号（Sa1）的第一加权值（V1）来调整第一判定信号（Sd1），并将第一调整信号（Sa1）发送到前馈滤波器。 调整装置还根据用于生成第二调整信号（Sa2）的第二加权值（V2）来进一步调整反馈信号（Sfb）。 求和装置接收用于产生求和信号（Ssu）的转发信号（Sff）和第二调整信号（Sa2），并向求和装置发出求和信号（Ssu）。

公开(公告)号：US07978760B2

公开(公告)日：2011-07-12

申请号：US12109022

申请日：2008-04-24

Applicant: Chih-chieh Wang

Inventor： Chih-chieh Wang

IPC: H03H7/30 ,  H03K5/159

CPC classification number: H04L25/03057 ,  H04L25/03203 ,  H04L25/03292

Abstract: A decision feedback equalizer having an adjusting device and method thereof are described. The decision feedback equalizer having an adjusting device includes a feed-forward filter, a decision device, a feedback filter, the adjusting device, and a summation device. The feed-forward filter generates a forwarding signal (Sff) based on an input signal (Si). The decision device generates a first decision (Sd1) signal and a second decision signal (Sd2) which are associated with the summation signal (Ssu). The feedback filter receives the second decision signal (Sd2) for generating a feedback signal (Sfb). The adjusting device adjusts the first decision signal (Sd1) according to a first weighting value (V1) for generating a first adjusted signal (Sa1) and transmitting the first adjusted signal (Sa1) to the feed-forward filter. The adjusting device further adjusts the feedback signal (Sfb) according to a second weighting value (V2) for generating a second adjusted signal (Sa2). The summation device receives the forwarding signal (Sff) and the second adjusted signal (Sa2) for generating a summation signal (Ssu) and issuing the summation signal (Ssu) to the decision device.

Abstract translation: 描述了具有调整装置及其方法的判决反馈均衡器。 具有调整装置的判定反馈均衡器包括前馈滤波器，判定装置，反馈滤波器，调整装置以及求和装置。 前馈滤波器基于输入信号（Si）生成转发信号（Sff）。 判定装置产生与求和信号（Ssu）相关联的第一判定（Sd1）信号和第二判定信号（Sd2）。 反馈滤波器接收用于产生反馈信号（Sfb）的第二判定信号（Sd2）。 调整装置根据用于生成第一调整信号（Sa1）的第一加权值（V1）来调整第一判定信号（Sd1），并将第一调整信号（Sa1）发送到前馈滤波器。 调整装置还根据用于生成第二调整信号（Sa2）的第二加权值（V2）来进一步调整反馈信号（Sfb）。 求和装置接收用于产生求和信号（Ssu）的转发信号（Sff）和第二调整信号（Sa2），并向求和装置发出求和信号（Ssu）。