基本信息:
- 专利标题： Light-receiving circuit and bandwidth control method
- 专利标题（中）：光接收电路和带宽控制方法
- 申请号：JP2011081138 申请日：2011-03-31
- 公开(公告)号：JP2012217050A 公开(公告)日：2012-11-08
- 发明人： TERAYAMA YOSHIICHI , SUKUNAMI NOBUFUMI , YUKI MASAHIRO
- 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： JP2011081138 2011-03-31
- 主分类号： H04B10/152
- IPC分类号： H04B10/152 ; H04B10/04 ; H04B10/06 ; H04B10/14 ; H04B10/142 ; H04B10/26 ; H04B10/28
摘要：
PROBLEM TO BE SOLVED: To improve the characteristics of an electrical signal with respect to input light.SOLUTION: A light-receiving circuit includes a filter that is disposed at a subsequent stage of an electrical signal amplifier for amplifying an electrical signal converted from a demodulated light signal and adjusts a bandwidth of the electrical signal amplified by the electrical signal amplifier. The light-receiving circuit monitors an input light signal, obtains, from a storage unit, a control value of a bandwidth of the filter corresponding to the monitor value of the monitored input light signal, and controls the bandwidth of the filter based on the obtained control value. In the storage unit, the monitored value of the input light signal and the control value of the bandwidth of the filter with respect to the monitored value are stored in association with each other.
摘要（中）：
要解决的问题：提高相对于输入光的电信号的特性。 光接收电路包括滤波器，滤波器设置在电信号放大器的后级，用于放大从解调光信号转换的电信号，并调节由电信号放大器放大的电信号的带宽 。 光接收电路监视输入光信号，从存储单元获得与所监视的输入光信号的监视值相对应的滤波器的带宽的控制值，并基于获得的控制值控制滤波器的带宽 控制值。 在存储单元中，输入光信号的监视值和滤波器相对于监视值的带宽的控制值彼此关联地存储。 版权所有（C）2013，JPO＆INPIT
信息查询:
EspacenetIPC结构图谱:
| H | 电学 |
| --H04 | 电通信技术 |
| ----H04B | 传输 |
| ------H04B10/00 | 利用微粒辐射束、或无线电波以外的电磁波，例如光、红外线的传输系统 |
| --------H04B10/02 | .零部件 |
| ----------H04B10/14 | ..终端站 |
| ------------H04B10/152 | ...非相干直接检测系统 |