基本信息:
- 专利标题： Adaptive equalizer with dc offset compensation
- 专利标题（中）：具有DC偏移补偿的自适应均衡器
- 申请号：JP2005040940 申请日：2005-02-17
- 公开(公告)号：JP2005237003A 公开(公告)日：2005-09-02
- 发明人： GAI WEIXIN , HIDAKA YASUO
- 申请人： Fujitsu Ltd , 富士通株式会社
- 专利权人： Fujitsu Ltd,富士通株式会社
- 当前专利权人： Fujitsu Ltd,富士通株式会社
- 优先权： US78317004 2004-02-20
- 主分类号： H04B3/04
- IPC分类号： H04B3/04 ; H03F1/02 ; H03F3/45 ; H03G5/16 ; H04L25/03 ; H04L25/06
摘要：
PROBLEM TO BE SOLVED: To match a compensation amount applied by an equalizer close with an attenuation level by a medium as close as possible, in order to keep output characteristics of a signal constant, regardless of a specific communication path used to communicate the signal.
SOLUTION: A method for compensating for attenuation in an input signal includes receiving an input signal, communicating the first portion of the input signal on a first path, communicating the second portion of the input signal on a second path, and communicating the third portion of the input signal on a third path. The method also includes applying first gain to the first portion of the input signal, applying a first-order mathematical operation and a second gain to the second portion of the input signal, and applying a second-order mathematical operation and a third gain to the portion of the input signal. The method further includes recombining the first portion, the second portion, and the third portion into an output signal.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要（中）：
SOLUTION: A method for compensating for attenuation in an input signal includes receiving an input signal, communicating the first portion of the input signal on a first path, communicating the second portion of the input signal on a second path, and communicating the third portion of the input signal on a third path. The method also includes applying first gain to the first portion of the input signal, applying a first-order mathematical operation and a second gain to the second portion of the input signal, and applying a second-order mathematical operation and a third gain to the portion of the input signal. The method further includes recombining the first portion, the second portion, and the third portion into an output signal.
COPYRIGHT: (C)2005,JPO&NCIPI
要解决的问题：为了使由均衡器接近的补偿量与介质尽可能接近的衰减级相匹配，为了保持信号的输出特性恒定，不管用于通信的特定通信路径如何 信号。 解决方案：用于补偿输入信号中的衰减的方法包括接收输入信号，在第一路径上传送输入信号的第一部分，在第二路径上传送输入信号的第二部分，并将第 在第三路径上输入信号的第三部分。 该方法还包括对输入信号的第一部分施加第一增益，向输入信号的第二部分施加一阶数学运算和第二增益，以及向第二增益施加二阶数学运算和第三增益 部分输入信号。 该方法还包括将第一部分，第二部分和第三部分重新组合成输出信号。 版权所有（C）2005，JPO＆NCIPI