利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

61 条记录 (耗时 0.013 秒)

    Real time spectrum analyzer with zoom display
    21.
    发明公开
    Real time spectrum analyzer with zoom display 审中-公开
    Echtzeit-Spektrumanalysator mit Zoomanzeige

    公开(公告)号：EP2743709A1

    公开(公告)日：2014-06-18

    申请号：EP12196592.5

    申请日：2012-12-11

    申请人： Tektronix Inc.

    发明人： Earls, Jeffrey ,  Borden, Franklin ,  Garrison, Kelly

    IPC分类号： G01R13/02 ,  G01R23/16 ,  G01R23/18

    CPC分类号： G01R13/0236 ,  G01R13/029 ,  G01R23/16 ,  G01R23/18

    摘要： The described test and measurement instrument includes a processor for generating a bitmap image (412) from an input test signal, a user interface for identifying a portion (420) of the bitmap image, and a second image generator structured to generate a second image (432) from the identified portion of the bitmap image. The second image may be a zoomed image from the original bitmap, and the images may be time-corrected before being displayed.

    摘要翻译： 所描述的测试和测量仪器包括用于从输入测试信号生成位图图像（412）的处理器，用于识别位图图像的一部分（420）的用户界面和构造成生成第二图像的第二图像生成器（ 432）从位图图像的识别部分。 第二图像可以是来自原始位图的缩放图像，并且可以在显示之前对图像进行时间校正。

    VERFAHREN UND MESSGERÄT ZUR UNTERDRÜCKUNG VON STÖRSIGNALEN
    22.
    发明公开
    VERFAHREN UND MESSGERÄT ZUR UNTERDRÜCKUNG VON STÖRSIGNALEN 审中-公开
    方法和测量装置干扰抑制

    公开(公告)号：EP2721422A1

    公开(公告)日：2014-04-23

    申请号：EP12719672.3

    申请日：2012-05-03

    申请人： Rohde & Schwarz GmbH & Co. KG

    发明人： FELDHAUS, Gregor ,  ROTH, Alexander

    IPC分类号： G01R23/16 ,  G01R31/28 ,  G01R27/32 ,  G01R23/18

    CPC分类号： G06F17/00 ,  G01R23/16 ,  G01R23/18 ,  G01R31/2837

    摘要： The invention relates to a measuring device for suppressing an interfering signal, comprising a mixer (102), an analog-to-digital converter (104), a normalizing unit (105), and a replacing unit (107). The mixer (102) is designed to mix a first signal (111) with a first LO signal (117) and to mix a second signal (112) with a second LO signal (118). The analog-to-digital converter (104) is designed to digitize the first mixed signal (113) to form a first measurement signal (115) and to digitize the second mixed signal (114) to form a second measurement signal (116). The normalizing unit (105) is designed to shift the frequency range of at least the first measurement signal (115) and/or the second measurement signal (116) in such a way that the first measurement signal and the second measurement signal have a common center frequency. The replacing unit (107) is designed to combine the first measurement signal (115) and the second measurement signal (116) while removing interfering signal peak-value ranges that correspond to the interfering signal to form a total measurement signal (108).

    Density trace measurement and triggering in frequency domain bitmaps
    23.
    发明公开
    Density trace measurement and triggering in frequency domain bitmaps 有权
    Dichtespurmessung und-auslösung在Frequenzbereichsbitmaps

    公开(公告)号：EP2386869A2

    公开(公告)日：2011-11-16

    申请号：EP11163997.7

    申请日：2011-04-28

    申请人： Tektronix, Inc.

    发明人： Engholm, Kathryn A. ,  Hillman, Alfred K., Jr. ,  Turpin, John F. ,  Eby, David

    IPC分类号： G01R23/18

    CPC分类号： G01R23/18 ,  G01R13/0254

    摘要： A "density trace" (730) is formed by measuring the density of each column of a frequency domain bitmap (720) above a user-specified "amplitude threshold" (725). The density of each column equals the sum of the densities of all of the pixels in the column that are above the amplitude threshold divided by the sum of the densities of all of the pixels in the column. A density trace (730) provides a convenient way to define and represent the occupancy for a large number of columns, and also allows density data to be quickly transmitted from one instrument or computer to another. In some embodiments, a density trace is incorporated into a trigger detector (700) of a test and measurement instrument and used to generate a trigger signal. The trigger detector compares the density trace (730) to a user-specified "density threshold" (735) and generates the trigger signal when the value of any point of the density trace violates the density threshold.

    摘要翻译： 通过测量高于用户指定的“幅度阈值”（725）的频域位图（720）的每列的密度来形成“密度迹线”（730）。 每列的密度等于列中高于振幅阈值的所有像素的密度之和除以列中所有像素的密度的总和。 密度跟踪（730）提供了一种方便的方式来定义和表示大量列的占用，并且还可以将密度数据从一个仪器或计算机快速传输到另一个。 在一些实施例中，将密度迹线并入到测试和测量仪器的触发检测器（700）中，并用于产生触发信号。 触发检测器将密度跟踪（730）与用户指定的“密度阈值”（735）进行比较，并且当密度跟踪的任何点的值违反密度阈值时产生触发信号。

    ELECTRIC ARC MONITORING SYSTEMS
    25.
    发明公开
    ELECTRIC ARC MONITORING SYSTEMS 审中-公开
    评审制度的电弧炉

    公开(公告)号：EP1004031A4

    公开(公告)日：2004-10-27

    申请号：EP98943182

    申请日：1998-08-10

    申请人： HENDRY MECHANICAL WORKS

    发明人： PARKER MICHAEL T ,  HAM MARGARET F ,  KEENAN JAMES J ,  BENOIT LUC PIERRE

    IPC分类号： G01R31/02 ,  B23K9/095 ,  G01R23/18 ,  G01R29/00 ,  G01R29/08 ,  H01T1/12 ,  H01T15/00 ,  G01R23/00 ,  G01R31/00 ,  H02H1/00

    CPC分类号： G01R23/18 ,  G01R29/0842

    摘要： Electric arc monitoring is effected by exploiting the discovery that electric arcs are fractal phenomena in that all essential information that signifies "arc" is contained in each fractal subset. These fractal subsets are logarithmically distributed over the arc spectrum. Monitoring of arcs is most advantageously effected on a fractal subset (16) of low logarithmic order where the amplitude is higher pursuant to the 1/f characteristic of electric arcs, where cross-induction among neighboring circuits is lower, and where travel between the arc (12) and the arc signature pickup (23) is longer than at the high frequencies customary for electric arc detection. Fractal subset transformation (17) reduces the danger of false alarms. Arc signature portions may be processed in out of phase paths (242, 342) or treated as modulated carriers (42) for monitoring. Aircraft may be equipped with spark monitoring systems (80) that record (82-86) occurence of dangerous sparking at different locations (92-96) aboard the aircraft (81).

    ELECTRIC ARC MONITORING SYSTEMS
    26.
    发明公开
    ELECTRIC ARC MONITORING SYSTEMS 审中-公开
    评审制度的电弧炉

    公开(公告)号：EP1004031A1

    公开(公告)日：2000-05-31

    申请号：EP98943182.0

    申请日：1998-08-10

    申请人： HENDRY MECHANICAL WORKS

    发明人： PARKER, Michael, T. ,  HAM, MARGARET, F. ,  KEENAN, James, J. ,  BENOIT, Luc, Pierre

    IPC分类号： G01R23/00

    CPC分类号： G01R23/18 ,  G01R29/0842

    摘要： Electric arc monitoring is effected by exploiting the discovery that electric arcs are fractal phenomena in that all essential information that signifies 'arc' is contained in each fractal subset. These fractal subsets are logarithmically distributed over the arc spectrum. Monitoring of arcs is most advantageously effected on a fractal subset (16) of low logarithmic order where the amplitude is higher pursuant to the 1/f characteristic of electric arcs, where cross-induction among neighboring circuits is lower, and where travel between the arc (12) and the arc signature pickup (23) is longer than at the high frequencies customary for electric arc detection. Fractal subset transformation (17) reduces the danger of false alarms. Arc signature portions may be processed in out of phase paths (242, 342) or treated as modulated carriers (42) for monitoring. Aircraft may be equipped with spark monitoring systems (80) that record (82-86) occurence of dangerous sparking at different locations (92-96) aboard the aircraft (81).

    Waveform measuring apparatus with marker zone displaying function
    29.
    发明公开
    Waveform measuring apparatus with marker zone displaying function 失效
    波形测量装置有用于显示指定的区域的功能。

    公开(公告)号：EP0283804A1

    公开(公告)日：1988-09-28

    申请号：EP88103407.8

    申请日：1988-03-04

    申请人： ANRITSU CORPORATION

    发明人： Takano, Mitsuyoshi

    IPC分类号： G01R23/18 ,  G01R23/16

    CPC分类号： G01R23/18 ,  G01R23/173

    摘要： An input section (100) outputs a digital signal representing a characteristic value corresponding to a measurement range of an input signal. The digital signal is then stored in a memory (1). A display (2) displays the digital signal stored in the memory (1) as an image which is developed along one of the two-­dimensional coordinates axes and represents the prede­termined characteristic value. A zone setting section (6) outputs zone width data for setting, as a marker zone, a portion including a desired range of the one axis for the image displayed on the display (2). A zone display controller (5) causes the display (2) to display the marker zone, in accordance with the zone width data. A detector (3) reads out the digital signal within the desired range of the one axis, from the memory, in accordance with the zone width data, and detects the specific characteristic value in the readout digital signal. A display (4) controller causes a display (2) to display detected specific characteristic value data.

    摘要翻译： 输入部（100），输出表示的特征值对应于输入信号的测量范围内的数字信号。 然后该数字信号被存储在存储器中（1）。 的显示器（2）显示存储在其沿着二维之一开发的存储器（1），其为图像的所有数字信号的坐标轴和darstellt预定特性值。 一个区域设定部（6）输出区宽度数据设置，作为标记区，包括一个轴的为显示在显示器上的图像的期望范围内的部分（2）。 一个区域显示控制器（5）使显示器（2），以与所述区宽度数据显示标记区，在雅舞蹈。 检测器（3）中读出所希望的一个轴的范围内的数字信号，从所述存储器中，与区宽度数据雅舞蹈，并检测在读出数字信号的特定特性的值。 的显示器（4）控制器使显示（2）以显示特定的特性值检测到的数据。