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2. 发明授权

US07298978B2 Method and apparatus for optimizing decision level of signal output from optical receiver 有权
标题翻译：用于优化光接收机的信号输出判定电平的方法和装置
公开(公告)号：US07298978B2
公开(公告)日：2007-11-20
申请号：US10384462
申请日：2003-03-06
申请人： Jyung-chan Lee , Seung-il Myong , Jin-soo Han , Je-soo Ko
发明人： Jyung-chan Lee , Seung-il Myong , Jin-soo Han , Je-soo Ko
IPC分类号： H04B10/06
CPC分类号： H04B10/695
摘要： An optical receiver in an optical communication system, and more particularly, to a method and an apparatus for optimizing a decision level of a signal output from an optical receiver to obtain a minimum bit error rate (BER) by measuring output characteristics of the optical receiver and adjusting a reference voltage of the optical receiver based on a measurement result. The provided method includes measuring the strength of an electric signal at a modulated frequency out of the frequency elements of the output electric signal in the optical receiver, generating a reference voltage based on the strength data of the electric signal, inputting the reference voltage to the optical receiver and re-measuring the strength of the electric signal output from the optical receiver to determine whether the strength of the signal is minimum, and maintaining the reference voltage when the strength of the signal is minimum and adjusting the reference voltage in other cases. Thus, the provided method optimizes the distribution of level one and level zero, i.e., a decision level, of the electric signal output from the optical receiver, so the efficiency and the performance of the transferred optical signal are maximized.
摘要翻译：更具体地，涉及一种用于优化从光接收器输出的信号的判定电平以通过测量光接收器的输出特性来获得最小误码率（BER）来获得最小误码率（BER）的方法和装置，以及基于测量结果调整所述光接收器的参考电压。所提供的方法包括测量在光接收机中的输出电信号的频率元素之外的调制频率处的电信号的强度，基于电信号的强度数据产生参考电压，将参考电压输入到重新测量从光接收器输出的电信号的强度，以确定信号的强度是否最小，并且当信号的强度最小时保持参考电压，并在其他情况下调整参考电压。因此，所提供的方法优化了从光接收器输出的电信号的一级和零级的分布，即决定级别，从而使传输的光信号的效率和性能最大化。

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