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    • 1. 发明专利
    • Emphasis optimization device and emphasis optimization method
    • EMPHASIS优化设备和EMPHASIS优化方法
    • JP2013201661A
    • 2013-10-03
    • JP2012069528
    • 2012-03-26
    • Anritsu Corpアンリツ株式会社
    • MURAKAMI TAKASHISASAKI KOSUKEMOCHIZUKI TAKESHI
    • H04B3/04H04L25/03
    • H04L1/0033
    • PROBLEM TO BE SOLVED: To provide an optimum setting value of emphasis without being accompanied by troublesome work.SOLUTION: An emphasis optimization device 1 includes: inverse characteristic calculation means 2 for calculating inverse characteristic of amplitude characteristics from the amplitude characteristics of a transmission line; inverse Fourier transformation means 3 for obtaining an optimum impulse response by subjecting the inverse characteristics of the amplitude characteristics of the transmission line to inverse Fourier transformation; impulse response segmentation means 4 for segmenting the number of taps required for the emphasis to be added to digital signals transmitted on the transmission line from an impulse response; and optimum setting valve calculation means 5 for calculating an optimum setting value by converting the segmented impulse response to a value of the emphasis.
    • 要解决的问题:提供优化的强调设定值而不伴随着麻烦的工作。解决方案:强调优化装置1包括:逆特性计算装置2,用于根据传输线的振幅特性来计算幅度特性的反特性; 逆傅里叶变换装置3,用于通过对传输线的幅度特性的逆特性进行逆傅里叶变换来获得最佳脉冲响应; 脉冲响应分段装置4,用于将强调所需的抽头分数从脉冲响应分段到在传输线上发送的数字信号; 以及最优设定阀计算装置5,用于通过将分割的脉冲响应转换为强调的值来计算最佳设定值。
    • 2. 发明专利
    • Jitter transfer characteristic measuring instrument
    • 智能传输特性测量仪器
    • JP2010169504A
    • 2010-08-05
    • JP2009011633
    • 2009-01-22
    • Anritsu Corpアンリツ株式会社
    • SUZUKI SEIYAAOKI TAKASHIMOCHIZUKI TAKESHI
    • G01R29/02H04L25/02H04L27/00
    • G01R31/2837
    • PROBLEM TO BE SOLVED: To quickly measure jitter transfer characteristics.
      SOLUTION: A signal-for-modulation generating section 22 generates a signal M for modulation, containing a plurality of sine-wave components having known amplitudes m
      1 -m
      n and different frequencies f
      1 -f
      n respectively, and outputs them to a jitter generating section 21. A clock signal C phase-modulated by this signal M for modulation is input into a data signal generating section 23, and a data signal D synchronized with the clock signal C is given to a measuring object 1. A data signal D' output from the measuring object 1 is input to a clock regenerating section 25 to regenerate its clock signal component C', and phase detection processing, with respect to the clock signal component C' is performed with a phase detector 26. A signal amplitude detecting section 27 detects the amplitudes of the plurality of sign-wave components contained in the signal M for modulation from the output signal M' of the phase detector 26, and an arithmetic processing section 40 finds the ratios of the detected amplitudes to known amplitudes of the individual sine-wave components, respectively.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:快速测量抖动传输特性。 解决方案:调制信号生成部分22产生用于调制的信号M,该信号包含具有已知幅度的多个正弦波分量m n n 和不同频率f 1 -f n ,并将它们输出到抖动发生部分21.由该信号M进行相位调制的用于调制的时钟信号C被输入 进入数据信号生成部23,将与时钟信号C同步的数据信号D赋予测量对象1.从测量对象1输出的数据信号D'被输入到时钟再生部25以再生其时钟 信号分量C'和相位检测处理相对于时钟信号分量C'由相位检测器26执行。信号幅度检测部分27检测包含在信号M中的多个符号波分量的振幅, 来自相位检测器26的输出信号M'的调制,以及运算处理部 离子40分别找出检测到的振幅与各个正弦波分量的已知振幅的比值。 版权所有(C)2010,JPO&INPIT
    • 3. 发明专利
    • Frequency stability measuring instrument
    • 频率稳定性测量仪器
    • JP2006038485A
    • 2006-02-09
    • JP2004214594
    • 2004-07-22
    • Anritsu Corpアンリツ株式会社
    • MOCHIZUKI TAKESHIUCHINO SEIJI
    • G01R23/02G01R23/12G01R25/00
    • PROBLEM TO BE SOLVED: To allow precise measurement by simple constitution, without using a frequency conversion part and a quick phase demodulation part.
      SOLUTION: A sampling part 21 conducts intermittently by M pieces memory processing for sample values of a reference signal Sr and a measured signal Sx with respect to the first memory 24 and the second memory 26, in a prescribed period longer than a period, of a clock signal Cs, multiplied with a plurality of M times. A computing part 20 calculates an evaluation sample value required for evaluation computation of the frequency stability of the measured signal Sx to the reference signal Sr, based on the storage-finished up-to-date sample values for every M pieces, during a period from a time point when the storage of the sample values for every M pieces to the first memory 24 and the second memory 26 are finished, up to a time point when the next sample values for every M pieces are started to be stored, and the long term or short term of frequency stability is evaluation-computed from the evaluation sample value.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了允许通过简单的结构进行精确测量,而不使用变频部分和快速相位解调部分。 解决方案:采样部分21在比第一存储器24和第二存储器26长的规定周期内间歇地进行参考信号Sr的采样值和测量信号Sx的M个存储处理, 的时钟信号Cs乘以多个M次。 计算部件20基于在每个M个片段的存储完成的最新样本值中,计算测量信号Sx对参考信号Sr的频率稳定性的评估计算所需的评估样本值, 在每个M个样本值的存储到第一存储器24和第二存储器26的存储完成时,直到开始存储每个M个样本的下一个样本值的时间点,并且长的 频率稳定性的短期或短期从评估样本值进行评估。 版权所有(C)2006,JPO&NCIPI
    • 4. 发明专利
    • Jitter measuring apparatus
    • 抖动测量装置
    • JP2010236937A
    • 2010-10-21
    • JP2009083302
    • 2009-03-30
    • Anritsu Corpアンリツ株式会社
    • TSUCHIYA NAOSUKEMOCHIZUKI TAKESHISUZUKI SEIYA
    • G01R29/02H04L25/02
    • G01R29/26G01R31/31709
    • PROBLEM TO BE SOLVED: To enable correct display of a waveform of a demodulation signal by a single body.
      SOLUTION: A jitter demodulator 21 which demodulates a jitter component of a digital signal inputted from outside, a jitter amount calculator 22 which calculates an amplitude value of a demodulated signal J outputted from the jitter demodulator 21, an interpolator 23 which performs period measurement for the demodulated signal J outputted from the jitter demodulator 21 and performs interpolation processing with magnification according to the measured period, a display unit 25, and a display control part 24 which makes the display unit display a calculated value of the jitter amount calculator 22 and the waveform of the demodulated signal interpolated by the interpolator 23, are provided in a single case body.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了能够通过单个主体正确显示解调信号的波形。 解决方案:解调从外部输入的数字信号的抖动分量的抖动解调器21,计算从抖动解调器21输出的解调信号J的振幅值的抖动量计算器22,执行周期的内插器23 测量从抖动解调器21输出的解调信号J,并根据测量周期进行放大的内插处理,显示单元25和显示控制部分24,使得显示单元显示抖动量计算器22的计算值 并且由内插器23内插的解调信号的波形设置在单个壳体中。 版权所有(C)2011,JPO&INPIT
    • 5. 发明专利
    • Jitter measuring method and jitter measuring device
    • 抖动测量方法和抖动测量装置
    • JP2006003255A
    • 2006-01-05
    • JP2004180874
    • 2004-06-18
    • Anritsu Corpアンリツ株式会社
    • MOCHIZUKI TAKESHINISHIOHARA MASANORI
    • G01R29/02
    • PROBLEM TO BE SOLVED: To grasp accurately pattern-dependent jitter.
      SOLUTION: Waveform information of a data signal wherein noise jitter is suppressed by averaging data signals to be measured is generated by time-series data at fixed intervals shorter than the period of a clock signal having a frequency corresponding to a bit rate (S1), and a wide-band clock reproduction processing is performed to the waveform information (S2), and a clock signal including the pattern-dependent jitter is reproduced. Then, the reproduced clock signal is subjected to phase detection to thereby determine phase variation of each bit position (S3), and the phase variation is subjected to filter processing in a jitter measuring band specified beforehand by the bit rate of the data signal to the phase variation, to thereby determine the pattern-dependent jitter in each bit (S4).
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:准确掌握图案相关的抖动。 解决方案:通过平均待测量的数据信号来抑制噪声抖动的数据信号的波形信息是以比具有对应于比特率的频率的时钟信号的周期短的时间序列数据产生的 S1),并且对波形信息(S2)进行宽带时钟再生处理,并且再现包括与图案相关的抖动的时钟信号。 然后,对再现的时钟信号进行相位检测,从而确定每个位位置的相位变化(S3),并且相位变化在由数据信号的比特率预先指定的抖动测量带中进行滤波处理 从而确定每个位中的模式相关抖动(S4)。 版权所有(C)2006,JPO&NCIPI
    • 6. 发明专利
    • Noise generating apparatus
    • JP2004158962A
    • 2004-06-03
    • JP2002321059
    • 2002-11-05
    • Anritsu Corpアンリツ株式会社
    • SUGIYAMA OSAMUMOCHIZUKI TAKESHI
    • H03K3/84H03B29/00H04K1/00H04K1/02
    • PROBLEM TO BE SOLVED: To generate a noise signal string which has high reproducibility and a characteristic with less error with respect to a desired characteristic.
      SOLUTION: Information for specifying the optimum random number string for minimizing the error between the characteristic having the possibility of being designated by a characteristic designating means 23 and the characteristic of a noise signal to be outputted from a filter 22, within the range of random number strings capable of being outputted into the filter 22 by a random number generating means 21, is previously stored in an optimum random number information storage means 25 for each characteristic having the possibility of being designated. When the characteristic is designated, a control means 26 reads information for specifying the optimum random number string corresponding to the designated characteristic, designates an initial value of the optimum random number string to be specified by the information in the means 21, and starts to output random number strings at the initial value.
      COPYRIGHT: (C)2004,JPO
    • 7. 发明专利
    • Wander measuring instrument and wander measuring method
    • WANDER测量仪器和WANDER测量方法
    • JP2013088312A
    • 2013-05-13
    • JP2011229831
    • 2011-10-19
    • Anritsu Corpアンリツ株式会社
    • MOCHIZUKI TAKESHISUZUKI SEIYAAOKI TAKASHITSUCHIYA NAOSUKE
    • G01R29/02H04L25/02
    • PROBLEM TO BE SOLVED: To enable highly accurate wander measurement with a simple circuit configuration.SOLUTION: Sine wave generation parts 4a, 4b respectively output sinusoidal voltage signals u1(t), u2(t) with a signal to be measured and a reference signal comprising a clock signal as an operation clock. A phase demodulation part 6 outputs a time difference sequence x(n) based on instantaneous phase difference between sequences u1(n), u2(n) obtained by sampling the two sinusoidal voltage signals u1(t), u2(t) at fixed cycles. A control part 8 sets frequency tuning words FTW1, FTW2 closest to a specified output frequency f0 in a pair of sine wave generation parts 4a, 4b on the basis of a nominal frequency of the signal to be measured and a nominal frequency of the reference signal which are set in advance, controls the output frequencies of the two sinusoidal voltage signals u1(t), u2(t), and suppresses a measurement error resulting from circuit noise.
    • 要解决的问题:通过简单的电路配置实现高精度漂移测量。 解决方案:正弦波产生部分4a,4b分别输出具有要测量的信号的正弦电压信号u1(t),u2(t)和包括时钟信号的参考信号作为操作时钟。 相位解调部分6基于通过以固定周期对两个正弦电压信号u1(t),u2(t)进行采样而获得的序列u1(n),u2(n)之间的瞬时相位差输出时差序列x(n) 。 控制部分8基于待测信号的标称频率和参考信号的标称频率来设定一对正弦波产生部分4a,4b中最靠近指定输出频率f0的频率调谐字FTW1,FTW2 它们被预先设置,控制两个正弦电压信号u1(t),u2(t)的输出频率,并且抑制由电路噪声引起的测量误差。 版权所有(C)2013,JPO&INPIT
    • 8. 发明专利
    • Device and method for jitter test
    • 用于抖动测试的设备和方法
    • JP2011196719A
    • 2011-10-06
    • JP2010061289
    • 2010-03-17
    • Anritsu Corpアンリツ株式会社
    • MOCHIZUKI TAKESHITSUCHIYA NAOSUKEISHIBE KAZUHIKO
    • G01R29/02
    • PROBLEM TO BE SOLVED: To provide a device and a method for a jitter test which enable execution of a high-reliability jitter test, in a short time.SOLUTION: The device 101 for the jitter test includes a jitter amount detecting part 13, which detects a jitter amount of an input signal S and an operation part 14 which computes the characteristic of the jitter amount J detected by the jitter amount detecting part 13, at start time that is different in a prescribed time Tso that time domains of computation may overlap each other. The operation part 14 is equipped with a jitter amount computing circuit 21 which computes a peak-to-peak value PP of the jitter amount J detected by the jitter amount detecting part 13, for each starting time and with a comparison circuit 22 which detects the frequency when the peak-to-peak value PP computed by the jitter amount computing circuit 21 exceeds a prescribed value set, beforehand, and determines whether the detected frequency exceeds a prescribed frequency set beforehand.
    • 要解决的问题:提供一种用于抖动测试的装置和方法,其能够在短时间内执行高可靠性抖动测试。解决方案:用于抖动测试的装置101包括抖动量检测部分13,抖动量检测部分13 检测输入信号S的抖动量和计算由抖动量检测部13检测到的抖动量J的特性的操作部14,在规定时间Tso的不同的开始时刻,计算的时域可能重叠 彼此。 操作部14配备有抖动量计算电路21,该抖动量计算电路21针对每个开始时间,计算由抖动量检测部13检测出的抖动量J的峰峰值PP,并且在比较电路22中, 预先由抖动量计算电路21计算出的峰峰值PP超过规定值时,判定检测出的频率是否超过规定的频率。
    • 9. 发明专利
    • Device and method for testing jitter transfer characteristic
    • 用于测试抖动传输特性的设备和方法
    • JP2011196718A
    • 2011-10-06
    • JP2010061287
    • 2010-03-17
    • Anritsu Corpアンリツ株式会社
    • ISHIBE KAZUHIKOMOCHIZUKI TAKESHI
    • G01R29/02G01R27/28
    • PROBLEM TO BE SOLVED: To provide a device and a method for testing a jitter transfer characteristic which can shorten a time for determining whether or not a measuring object 100 conforms to a predetermined jitter transfer characteristic mask.SOLUTION: The device 101 for testing the jitter transfer characteristic includes a jitter transfer characteristic measuring part 13 which measures the jitter transfer characteristic Tof the measuring object 100 by using a composite sine wave Mf where sine wave components of specified frequencies F, F, F, Fand Fare contained, and a sine wave specifying part 12 which specifies the sine wave components Mf of frequencies F, F, Fand Fdifferent from the sine wave component of the frequencies F, F, F, Fand Fmeasured by the jitter transfer characteristic measuring part 13 every time the jitter transfer characteristic measuring part 13 measures the jitter transfer characteristic T.
    • 要解决的问题:提供一种用于测试抖动传递特性的装置和方法,其可以缩短用于确定测量对象100是否符合预定的抖动传递特性掩码的时间。解决方案:用于测试抖动的装置101 传输特性包括:抖动传递特性测量部分13,其通过使用包含特定频率F,F,F,Fand Fare的正弦波分量和指定的正弦波的复合正弦波Mf来测量测量对象100的抖动传递特性Tof 第12部分规定抖动传递特性测量部分13每次抖动传递特性测量部分13时由抖动传递特性测量部分13测量的频率F,F,F和F的正弦波分量的频率F,F,F和F的正弦波分量Mf 测量抖动传输特性T.
    • 10. 发明专利
    • A/d converter and time interval measurement instrument
    • A / D转换器和时间间隔测量仪器
    • JP2009177625A
    • 2009-08-06
    • JP2008015467
    • 2008-01-25
    • Anritsu Corpアンリツ株式会社
    • MOCHIZUKI TAKESHINISHIOHARA MASANORI
    • H03M1/12
    • PROBLEM TO BE SOLVED: To suppress the influence of droop to the minimum with a simple configuration.
      SOLUTION: A sample hold circuit 22 supplies an input analog signal A to a capacitor 22c and stores voltage of the analog signal A in the capacitor 22c in a sample period where a control signal C' from a control signal generator 21 is at one level, stops supplying the analog signal to the capacitor 22c, holds and outputs the voltage stored in the capacitor 22c in a hold period where the control signal C' is at the other level. A quantization circuit 23 quantizes the voltage to be output by the sample hold circuit 22 in the hold period. The control signal generator 21 generates the control signal C' reducing a ratio of the hold period to the sample period and supplies it to the sample hold circuit 22 as the frequency of the clock signal C becomes small in the same period as that of the input clock signal C within a prescribed frequency range. Consequently, a droop phenomenon can be suppressed.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:以简单的配置将下垂的影响抑制到最小。 解决方案:采样保持电路22将输入的模拟信号A提供给电容器22c,并将电容器22c中的模拟信号A的电压存储在来自控制信号发生器21的控制信号C'处于 一个电平停止向电容器22c供给模拟信号,在控制信号C'处于另一个电平的保持时段中保持和输出存储在电容器22c中的电压。 量化电路23在保持期间量化由采样保持电路22输出的电压。 控制信号发生器21产生控制信号C',以减小保持周期与采样周期的比率,并将其提供给采样保持电路22,因为时钟信号C的频率在与输入的时间相同的周期内变小 时钟信号C在规定的频率范围内。 因此,可以抑制下垂现象。 版权所有(C)2009,JPO&INPIT