公开(公告)号：US09255861B2

公开(公告)日：2016-02-09

申请号：US12947351

申请日：2010-11-16

申请人： Haruyoshi Uchiyama ,  Yousuke Harima

发明人： Haruyoshi Uchiyama ,  Yousuke Harima

IPC分类号： G01N21/00 ,  G01M11/00

CPC分类号： G01M11/335 ,  G01M11/337

摘要： The invention is to provide an optical loss measuring method and an optical loss measuring apparatus capable of efficiently measuring an optical loss occurring to a target for measurement. The other optical loss measurement method comprising the steps of inputting light outputted from a light source to a target for measurement to thereby measure an output level of the target for measurement with the use of an optical power meter, maintaining the output level of the light source at a predetermined fixed value, and finding the optical loss occurring to the target for measurement on the basis of the output level of the light source maintained at the fixed value for use as the reference value.

摘要翻译： 本发明提供一种光损耗测量方法和光损耗测量装置，其能够有效地测量测量目标产生的光学损耗。 另一种光损耗测量方法包括以下步骤：将从光源输出的光输入到测量目标，从而使用光功率计测量测量目标的输出电平，保持光源的输出电平 以预定的固定值，基于保持在固定值的光源的输出电平作为基准值，求出发生在测量目标上的光损耗。

公开(公告)号：US5805018A

公开(公告)日：1998-09-08

申请号：US856208

申请日：1997-05-14

申请人： Yousuke Harima

发明人： Yousuke Harima

IPC分类号： H04L27/38 ,  H03D3/00 ,  H04L7/033 ,  H04L27/22

CPC分类号： H04L27/22 ,  H03D3/006 ,  H04L7/0334

摘要： A high-speed demodulating method of burst data capable of performing demodulation process at high speed in a single hardware structure. An input signal digitally modulated is taken in into an input unit to be sampled and latched therein by a sampling clock from a controller, and a modulation signal from the input unit is taken in into either a first demodulator or a second demodulator for each one burst data depending on the timing of a first control signal or a second control signal output by the controller, respectively, and demodulated, and a first demodulation signal produced from the first demodulator or a second demodulation signal produced from the second demodulator is taken in into an output unit by a third control signal output by the controller, and in the output unit, the first demodulation signal or the second demodulation signal is latched by a latch signal of the controller and supplied as an output signal.

摘要翻译： 能够在单个硬件结构中高速执行解调处理的突发数据的高速解调方法。 数字调制的输入信号通过来自控制器的采样时钟被采入输入单元中以被采样和锁存在其中，并且来自输入单元的调制信号被摄入到用于每一个突发的第一解调器或第二解调器 取决于由控制器输出的第一控制信号或第二控制信号的定时的数据并被解调，并且从第一解调器产生的第一解调信号或从第二解调器产生的第二解调信号被取入到 输出单元由控制器输出的第三控制信号，并且在输出单元中，第一解调信号或第二解调信号由控制器的锁存信号锁存，并作为输出信号提供。