公开(公告)号：US20090279595A1

公开(公告)日：2009-11-12

申请号：US12295227

申请日：2007-03-26

申请人： Kazuhiro Yamane ,  Kazuhiro Fujinuma

发明人： Kazuhiro Yamane ,  Kazuhiro Fujinuma

IPC分类号： H04B17/00

CPC分类号： H03K5/26 ,  H03K5/08 ,  H03K5/24

摘要： The object of the present invention is to provide a waveform shaping device and an error measurement device which can perform a waveform shaping operation with the sufficient amplitude margin, even if the mark ratio of the inputted data signal is significantly varied and the amplitude of the inputted data signal is decreased. The waveform shaping device according to the present invention comprises a voltage detector (22) for detecting an inputted data signal (Da) to obtain an amplitude value and the center amplitude voltage of the inputted data signal (Da), a reference voltage generator (23) for generate the reference voltage corresponding to the center amplitude voltage, and a comparator (25) for comparing the inputted data signal (Da) with the reference voltage, and in which the waveform shaping device further comprises a correction information outputting section (27) for outputting correction information V on the basis of a mark ratio (M) and an amplitude of the inputted data signal (Da), the correction information V used to correct the center amplitude voltage detected by the voltage detector (22), and a correction section (28) correct the reference voltage or the inputted data signal to be inputted to the comparator (25) on the basis of the correction information (V).

摘要翻译： 本发明的目的是提供一种能够以足够的幅度进行波形整形的波形整形装置和误差测量装置，即使输入的数据信号的标记比显着变化，输入的幅度 数据信号减少。 根据本发明的波形整形装置包括用于检测输入数据信号（Da）以获得输入数据信号（Da）的振幅值和中心振幅电压的电压检测器（22），参考电压发生器（23） ），用于产生与中心振幅电压相对应的参考电压;以及比较器（25），用于将输入的数据信号（Da）与参考电压进行比较，其中波形整形装置还包括校正信息输出部分（27） 用于输出校正信息 V，校正信息 V用于 校正由电压检测器（22）检测到的中心振幅电压，校正部件（28）根据校正信息（ V）。

公开(公告)号：US20090252270A1

公开(公告)日：2009-10-08

申请号：US12294404

申请日：2007-03-26

申请人： Kazuhiro Fujinuma ,  Kazuhiro Yamane

发明人： Kazuhiro Fujinuma ,  Kazuhiro Yamane

IPC分类号： H04L7/00

CPC分类号： H04L7/0337 ,  H04L25/03828

摘要： The object of the present invention is to provide a data decision apparatus and an error measurement apparatus which can set the phase of the clock to the optimum state with respect to the data signal without continuously sweeping of the phase, and can keep the state for a long time. The data decision apparatus according to the present invention comprises a delay device (34) for delaying a data signal (Dc) outputted from a decision device (31) by one bit, a first phase detector (35) for detecting a phase difference between a data signal (Db) to be inputted to the decision device (31) and the data signal (Dc) outputted from the decision device (31), a second phase detector (36) for detecting a phase difference between the data signal (Dc) outputted from the decision device (31) and a data signal (Dd) outputted from the delay device (34), a third phase detector (37) for outputting a base voltage with respect to the output values of the first and second phase detectors (35 and 36), and a phase controller (38) for controlling a phase shift amount of a variable delay device (32) to equalize an output value (P1) of the first phase detector (35) to a center value between an output value (P2) of the second phase detector (36) and the base voltage (P3).

摘要翻译： 本发明的目的是提供一种数据判定装置和误差测量装置，其可以将相位相对于数据信号的时钟相位设置为相位的最佳状态，而不会持续扫描相位，并且可以保持状态 长时间。 根据本发明的数据判定装置包括延迟装置（34），用于将从判定装置（31）输出的数据信号（Dc）延迟一位，第一相位检测器（35） 输入到判定装置（31）的数据信号（Db）和从判定装置（31）输出的数据信号（Dc）;第二相位检测器（36），用于检测数据信号（Dc） 从所述判定装置（31）输出的数据信号（Dd）和从所述延迟装置（34）输出的数据信号（Dd）;第三相位检测器（37），用于相对于所述第一和第二相位检测器的输出值输出基极电压 35和36）和相位控制器（38），用于控制可变延迟装置（32）的相移量以将第一相位检测器（35）的输出值（P1）均衡到输出值 （P2）和基极电压（P3）。