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1. 发明专利

JP2008026188A Signal analyzer and program for the same 有权
标题翻译：信号分析仪及其相关程序
公开(公告)号：JP2008026188A
公开(公告)日：2008-02-07
申请号：JP2006200101
申请日：2006-07-21
申请人： Tektronix Japan Ltd , 日本テクトロニクス株式会社
发明人： NARA AKIRA
IPC分类号： G01R23/16
CPC分类号： G01R13/0254 , G01R13/0263
摘要： PROBLEM TO BE SOLVED: To automatically set a mask capable of capturing an unknown extremely rare peak.
SOLUTION: A signal analyzer repeatedly stores waveform data on a signal to be measured, and detects the peaks P1 to P6 of the waveform data. A waveform width of the waveform data in a mask reference level which is decreased from the peak by a predetermined level is obtained as a mask reference width for each of the peaks, and the mask is set using the mask reference level and the mask reference width in each of the peaks. Because the mask is automatically set, a user can easily obtain time domain data or frequency domain data including a characteristic part of the signal to be measured.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：自动设置能够捕获未知非常罕见峰值的面罩。解决方案：信号分析仪反复存储要测量的信号的波形数据，并检测波形数据的峰值P1至P6。获得从峰值减小预定水平的掩模基准电平中的波形数据的波形宽度作为每个峰值的掩码基准宽度，并且使用掩码基准电平和掩码基准宽度来设置掩码在每个峰。因为掩模被自动设置，用户可以容易地获得包括要测量的信号的特征部分的时域数据或频域数据。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2005024487A Signal analyzer, measuring method using the same, and frequency domain data generation method 有权
标题翻译：信号分析仪，使用该信号分析仪的测量方法和频域数据生成方法
公开(公告)号：JP2005024487A
公开(公告)日：2005-01-27
申请号：JP2003270247
申请日：2003-07-02
申请人： Tektronix Japan Ltd , 日本テクトロニクス株式会社
发明人： NARA AKIRA
IPC分类号： G01R23/16 , G01R35/00
CPC分类号： G01R23/16 , G01R35/005
摘要： PROBLEM TO BE SOLVED: To attain a wide band span exceeding a limit by a sampling frequency of an AD conversion circuit concerning a signal analyzer attaining the wider band span than the conventional.
SOLUTION: A front frequency conversion circuit 13 generates a first intermediate frequency by receiving a signal to be measured. First, second and third frequency conversion passes 100, 200 and 300 generate time domain data by frequency-converting frequency bands different in a first intermediate frequency respectively. DSP 22 generates the time domain data of the number necessary for generating frequency domain data composing a band width processed with three frequency conversion passes by interpolating each of a plurality of time domain data. Therefrom one frequency domain data are generated by calculation.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了获得超过常规的宽带跨度的信号分析仪的AD转换电路的采样频率超过极限的宽带跨度。解决方案：前置频率转换电路13通过接收待测信号来产生第一中频。首先，第二和第三变频通路100,200和300分别通过对第一中频不同的频带进行频率转换来生成时域数据。 DSP22通过内插多个时域数据中的每一个，生成用于生成构成通过三个频率转换通过处理的带宽的频域数据所需的数量的时域数据。通过计算产生一个频域数据。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2006270849A Frequency converting circuit 审中-公开
标题翻译：频率转换电路
公开(公告)号：JP2006270849A
公开(公告)日：2006-10-05
申请号：JP2005089333
申请日：2005-03-25
申请人： Tektronix Japan Ltd , 日本テクトロニクス株式会社
发明人： NARA AKIRA
IPC分类号： H04B1/26
CPC分类号： H04L5/06 , H04B1/0057 , H04B1/28
摘要： PROBLEM TO BE SOLVED: To enable frequency conversion to be performed in a low cost while maintaining transfer characteristics between a plurality of input signals.
SOLUTION: A first frequency conversion stage 50 has a first and second frequency conversion paths 501, 502, respectively producing a first and second intermediate frequencies after receiving a first and second input signals. A combiner 19 is designed to add the first and second intermediate frequencies, and to supply to a following frequency conversion stage 60. At this time, frequency difference FD is to be provided between oscillation frequencies of local oscillation circuits 141, 142, and respective central frequencies of the first and second intermediate frequencies are made to be controlled so as to generate the frequency difference FD. Since an output signal of the combiner 19 is processed by a common circuit, difference etc. are hard to be produced in the transfer characteristics between channels.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：在保持多个输入信号之间的传送特性的同时，以低成本实现频率转换。解决方案：第一变频级50具有第一和第二变频路径501,502，分别在接收第一和第二输入信号之后产生第一和第二中频。组合器19被设计成添加第一和第二中频，并提供给后续的频率转换级60.此时，将在本地振荡电路141,142的各个振荡频率和相应的中心频率之间提供频差FD 使第一和第二中频的频率被控制以产生频差FD。由于组合器19的输出信号由公共电路处理，所以在通道之间的传输特性中难以产生差异等。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2006329839A Noise characteristic display method 有权
标题翻译：噪声特征显示方法
公开(公告)号：JP2006329839A
公开(公告)日：2006-12-07
申请号：JP2005154746
申请日：2005-05-26
申请人： Tektronix Japan Ltd , 日本テクトロニクス株式会社
发明人： NARA AKIRA
IPC分类号： G01R23/16
CPC分类号： G01R29/26 , H03L7/16
摘要： PROBLEM TO BE SOLVED: To measure time-dependent variation of the phase noise characteristic.
SOLUTION: A peak of a measured spectrum is detected, and its frequency is determined as a reference frequency. The offset frequency from the reference frequency is sequentially changed, noise power is integrated with respect to a predetermined frequency width every frequency to obtain an integrated value, and further a divided value is calculated by dividing it by the predetermined frequency width. The divided value is divided by the peak power, and a noise characteristic representing the ratio of the noise power to the peak power is determined. The relation among an offset frequency, noise characteristic, and period is graphically displayed. Thus, the time-dependent variation of the phase noise characteristic is graphically displayed.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：测量相位噪声特性的时间相关变化。
解决方案：检测到测量光谱的峰值，并将其频率确定为参考频率。从基准频率的偏移频率依次变化，噪声功率相对于每个频率的预定频率宽度积分，以获得积分值，并且通过将分频值除以预定频率宽度来计算分频值。将分频值除以峰值功率，并且确定表示噪声功率与峰值功率之比的噪声特性。偏移频率，噪声特性和周期之间的关系用图形显示。因此，图形地显示了相位噪声特性的随时间变化。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2005331300A Display method of frequency analytical apparatus 有权
标题翻译：频率分析装置的显示方法
公开(公告)号：JP2005331300A
公开(公告)日：2005-12-02
申请号：JP2004148368
申请日：2004-05-18
申请人： Tektronix Japan Ltd , 日本テクトロニクス株式会社
发明人： NARA AKIRA
IPC分类号： G01R23/16 , G01R13/02 , G01R23/173 , G01R23/18
CPC分类号： G01R23/18 , G01R13/029 , H04B17/23
摘要： PROBLEM TO BE SOLVED: To simultaneously specify and analyze a desired time section and a frequency section in the display of a frequency analytical apparatus. SOLUTION: Data on signals to be measured is displayed on a graph having a time axis and a frequency axis. A rectangular marker 24 changeable as desired and indicating a desired time section and a desired frequency section is displayed on the graph. A subgraph on data included in the desired time section and the desired frequency section partitioned by the rectangular marker 24 is displayed. It is thereby possible to specify, measure, and analyze a part of special interest while looking down at the whole signals to be measured. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：同时指定和分析频率分析装置的显示器中的期望时间段和频率部分。
解决方案：要测量的信号的数据显示在具有时间轴和频率轴的图形上。在图表上显示可根据需要改变并指示所需时间段和期望频率部分的矩形标记24。显示包含在期望时间部分中的数据的子图和由矩形标记24分割的期望频率部分。因此，可以在忽视要测量的整个信号的情况下，对特定兴趣的一部分进行指定，测量和分析。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2005164295A Method of measuring and calibrating characteristic of frequency conversion circuit 有权
标题翻译：测量和校准频率转换电路特性的方法
公开(公告)号：JP2005164295A
公开(公告)日：2005-06-23
申请号：JP2003400526
申请日：2003-11-28
申请人： Tektronix Japan Ltd , 日本テクトロニクス株式会社
发明人： NARA AKIRA
IPC分类号： G01R27/28 , G01R31/00 , G01R31/316 , G01R35/00 , H03H17/02 , H04B1/26
CPC分类号： G01R35/005 , H03H17/0213
摘要： PROBLEM TO BE SOLVED: To maintain high precision even when widening a frequency band of a frequency conversion circuit. SOLUTION: A band hardly deteriorated by a secular change or the like within the frequency band of the frequency conversion circuit is used as a reference band, and an ideal characteristic thereof is stored preliminarily. A calibration signal is supplied from a calibration signal source built in the frequency conversion circuit to the frequency conversion circuit, a characteristic of the reference band is measured to store a difference with respect to the ideal characteristic. Then, the calibration signal is supplied to acquire a characteristic data of the frequency band other than the reference band, and a correction factor is calculated to correct the characteristic data corrected in response to the difference to the ideal characteristic. When using the frequency conversion circuit, a frequency area data is corrected using the correction factor to keep the high precision even in the widened frequency band. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使在变频电路的频带变宽时也能保持高精度。解决方案：将频率转换电路的频带内的长期变化等几乎不劣化的频带用作基准频带，并且预先存储其理想特性。校准信号从频率转换电路内置的校准信号源提供给频率转换电路，测量参考频带的特性以存储与理想特性的差值。然后，提供校准信号以获取除了参考频带之外的频带的特性数据，并且计算校正因子以校正响应于与理想特性的差异而校正的特性数据。当使用变频电路时，使用校正因子校正频率区域数据，即使在加宽的频带中也能保持高精度。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2009270896A Signal analyzer and frequency domain data display method 审中-公开
标题翻译：信号分析仪和频域数据显示方法
公开(公告)号：JP2009270896A
公开(公告)日：2009-11-19
申请号：JP2008120748
申请日：2008-05-02
申请人： Tektronix Japan Ltd , 日本テクトロニクス株式会社
发明人： NARA AKIRA
IPC分类号： G01R23/16
CPC分类号： G01R23/165
摘要： PROBLEM TO BE SOLVED: To display frequency domain data multilaterally at different frequency resolution and time resolution. SOLUTION: First type frequency domain data generated by the first type frame unit from time domain data of a signal to be measured are displayed as a spectrogram. A selection frame for selecting a plurality of first type frames is displayed on the spectrogram. This signal analyzer generates second type frequency domain data by treating time domain data of the selected plurality of first type frame portions as new one frame, and displays the data as a spectrum. Resultantly, the spectrum and the spectrogram become different frequency resolution and time resolution. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：以不同的频率分辨率和时间分辨率多边显示频域数据。解决方案：由待测信号的时域数据由第一类型帧单元生成的第一类型频域数据被显示为频谱图。在频谱图中显示用于选择多个第一类型帧的选择帧。该信号分析器通过将所选择的多个第一类型帧部分的时域数据作为新的一帧来处理产生第二类型频域数据，并将该数据显示为频谱。结果，频谱和频谱图变为不同的频率分辨率和时间分辨率。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2008128967A Signal analyzer and its data generation method 有权
标题翻译：信号分析仪及其数据生成方法
公开(公告)号：JP2008128967A
公开(公告)日：2008-06-05
申请号：JP2006317398
申请日：2006-11-24
申请人： Tektronix Japan Ltd , 日本テクトロニクス株式会社
发明人： NARA AKIRA
IPC分类号： G01R23/16
CPC分类号： G01R23/18 , G01R13/0236 , G01R23/165
摘要： PROBLEM TO BE SOLVED: To provide a signal analyzer and its data generation method for generating data on both original analytical range and its partially-extended range, while collaterally updating both of the data. SOLUTION: In this data generation method, the 1st frequency analytical range and the 2nd frequency analytical range narrower than this 1st one are established in operation panel 34 and the like. The 1st signal path 171 generates 1st time domain data of a measured signal with frequency converted per the 1st data generation rate established depending on the 1st frequency analytical range. The 2nd signal path 172 generates 2nd time domain data of a measured signal with frequency converted per the 2nd data generation rate, lower than the 1st data generation rate, established depending on the 2nd frequency analytical range. CPU collaterally receives both of these 1st and 2nd time domain data to generate 1st and 2nd frequency domain data by using Fast Fourier Transform. Then, there is set the difference in frequency shift amount during frequency conversion on the 1st and 2nd signal paths in response to the difference between the central frequencies in the first and second frequency analysis ranges. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于在原始分析范围及其部分扩展范围上生成数据的信号分析器及其数据生成方法，同时对两个数据进行双向更新。
解决方案：在该数据生成方法中，在操作面板34等中建立了比第一频率分析范围窄的第一频率分析范围和第二频率分析范围。第一信号路径171根据第一频率分析范围，根据建立的第一数据生成速率，生成经频率变换的测量信号的第一时域数据。第二信号路径172根据第二频率分析范围，根据第二数据生成速率产生频率转换的测量信号的第二时域数据，低于第一数据生成速率。 CPU通过使用快速傅里叶变换来交叉接收这些第一和第二时域数据以产生第一和第二频域数据。然后，响应于第一和第二频率分析范围中的中心频率之间的差异，在频率转换期间在第一和第二信号路径上设定频移量的差异。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2007064947A Data processing method for signal analyzer 有权
标题翻译：信号分析仪的数据处理方法
公开(公告)号：JP2007064947A
公开(公告)日：2007-03-15
申请号：JP2005255088
申请日：2005-09-02
申请人： Tektronix Japan Ltd , 日本テクトロニクス株式会社
发明人： HOSOI OSAMU , NARA AKIRA
IPC分类号： G01R23/16
CPC分类号： G01R23/167
摘要： PROBLEM TO BE SOLVED: To replace a swept spectrum analyzer with a signal analyzer by enabling the signal analyzer to set a VBW. SOLUTION: It is defined that the frequency span corresponds to a virtually determined sweep time and frequency variation and time change establish a linear correspondence, and N spectrum data of one frame establish a time series relation. Thus, the spectrum data can be processed as time region data. By applying video filter characteristics in a digital operation, the application result of the video filter is equivalently obtained. COPYRIGHT: (C)2007,JPO&INPIT

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