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1. 发明授权

US08489350B2 Frequency domain bitmap triggering using color, density and correlation based triggers 有权
标题翻译：使用颜色，密度和基于相关的触发器进行频域位图触发
公开(公告)号：US08489350B2
公开(公告)日：2013-07-16
申请号：US12568141
申请日：2009-09-28
申请人： Kathryn A. Engholm , Edward C. Gee , Alfred K. Hillman, Jr. , David Eby
发明人： Kathryn A. Engholm , Edward C. Gee , Alfred K. Hillman, Jr. , David Eby
IPC分类号： G01R15/00 , G01R23/00 , G06F19/00 , G06F17/40
CPC分类号： G01R23/16 , G01R13/0263
摘要： An RF test and measurement device, including a front end for receiving a time-varying signal and a real-time engine for generating digital frequency domain spectrums based on the time-varying signal. The device also includes a memory subsystem containing a frequency domain bitmap which is updated through sequential receipt and storage of the digital frequency domain spectrums. The real time engine is further configured to monitor the frequency domain bitmap for occurrence of a signal characteristic, and in response to detection of the signal characteristic, cause a capture of the time-varying signal into a storage location of the RF test and measurement device.
摘要翻译： RF测试和测量设备，包括用于接收时变信号的前端和基于时变信号产生数字频域频谱的实时引擎。该设备还包括存储器子系统，其包含通过数字频域频谱的顺序接收和存储来更新的频域位图。实时引擎还被配置为监视频域位图以发生信号特性，并且响应于信号特性的检测，将时变信号捕获到RF测试和测量设备的存储位置。

2. 发明授权

US08180586B2 Amplitude discrimination using the frequency mask trigger 有权
标题翻译：使用频率屏蔽触发的幅度辨别
公开(公告)号：US08180586B2
公开(公告)日：2012-05-15
申请号：US12369660
申请日：2009-02-11
申请人： Alfred K. Hillman, Jr. , Thomas C. Hill, III
发明人： Alfred K. Hillman, Jr. , Thomas C. Hill, III
IPC分类号： G06F19/00
CPC分类号： G01R13/0254 , G01R23/163
摘要： A frequency mask trigger having frequency selective amplitude discrimination capability is provided for triggering when selected frequency components of an input signal fail to reach a desired power level. A frame of digital data representing an input signal is transformed into a frequency spectrum having at least one frequency bin, each frequency bin having a power amplitude value. Each power amplitude value is compared to an upper lower reference power levels and a lower reference power level. A trigger signal is generated when the power amplitude value in any frequency bin is above the lower reference power level and below the upper reference power level for a specified time duration.
摘要翻译：提供具有频率选择性振幅识别能力的频率屏蔽触发器，用于当输入信号的选定频率分量不能达到期望的功率电平时进行触发。表示输入信号的数字数据的帧被变换成具有至少一个频率仓的频谱，每个频率仓具有功率振幅值。将每个功率振幅值与较低的参考功率电平和较低的参考功率电平进行比较。当任何频率仓中的功率振幅值高于较低的参考功率电平且低于上限参考功率电平达指定持续时间时，产生触发信号。

3. 发明授权

US4001559A Programmable measuring 失效
标题翻译：可编程测量
公开(公告)号：US4001559A
公开(公告)日：1977-01-04
申请号：US532746
申请日：1974-12-16
申请人： Deane C. Osborne , John M. Harrison , Alfred K. Hillman, Jr.
发明人： Deane C. Osborne , John M. Harrison , Alfred K. Hillman, Jr.
IPC分类号： G01D5/12 , H04M3/32 , G08C25/00 , G06F15/20
CPC分类号： H04M3/32
摘要： A communications line under test intercouples programmable local units, one of which transmits an analog waveform to the other in response to digital control signals received from a computer. The receiving programmable local unit transmits a digital signal to the computer representative of the received analog signal to thereby enable the computer to determine transmission characteristics of the communications line intercoupling the programmable local units.

4. 发明授权

US09702907B2 Frequency mask trigger with non-uniform bandwidth segments 有权
公开(公告)号：US09702907B2
公开(公告)日：2017-07-11
申请号：US13328098
申请日：2011-12-16
申请人： Steven W. Stanton , Edward C. Gee , Alfred K. Hillman, Jr.
发明人： Steven W. Stanton , Edward C. Gee , Alfred K. Hillman, Jr.
IPC分类号： G06F17/00 , G01R13/02 , G01R23/18 , G01R23/16 , G01R23/02 , G01R23/20
CPC分类号： G01R13/0254 , G01R23/02 , G01R23/16 , G01R23/18 , G01R23/20 , G06F17/00
摘要： Disclosed is a test and measurement instrument having a multiple variable bandwidth frequency mask. The instrument includes an input processor for receiving an input signal and producing a digital signal, as well as a trigger signal generator for generating a trigger signal on the occurrence of a trigger event. A time to frequency converter converts a frame of digital data from the digital signal into a frequency spectrum having at least two frequency bins of dissimilar frequency widths. Each frequency bin has a power amplitude value. The trigger signal is generated when the power amplitude value of any of the at least two frequency bins violates an associated reference power level. In some cases the output may be shown as a density trace, and the trigger signal generated when any point of the density trace violates an associated density threshold.

5. 发明授权

US08731857B2 Method and apparatus for generating a gated density bitmap 有权
标题翻译：用于生成门控密度位图的方法和装置
公开(公告)号：US08731857B2
公开(公告)日：2014-05-20
申请号：US12826506
申请日：2010-06-29
申请人： Alfred K. Hillman, Jr.
发明人： Alfred K. Hillman, Jr.
IPC分类号： G01R23/16
CPC分类号： G01R13/0254 , G01R23/18
摘要： A test and measurement instrument converts digital data that represents an input signal into a series of frequency spectra and accumulates frequency spectra into a bitmap database in response to a gating signal. In some embodiments, the gating signal is generated when the instantaneous power of the input signal violates a power threshold.
摘要翻译：测试和测量仪器将表示输入信号的数字数据转换为一系列频谱，并响应门控信号将频谱累积到位图数据库中。在一些实施例中，当输入信号的瞬时功率违反功率阈值时，产生门控信号。

6. 发明授权

US09207269B2 Automatically detecting in-band but out-of-span power in a frequency-domain test and measurement instrument 有权
标题翻译：在频域测试和测量仪器中自动检测带内但超出功率的功能
公开(公告)号：US09207269B2
公开(公告)日：2015-12-08
申请号：US13477360
申请日：2012-05-22
申请人： John F. Turpin , Alfred K. Hillman, Jr.
发明人： John F. Turpin , Alfred K. Hillman, Jr.
IPC分类号： G01R21/133 , G01R13/02 , G01R23/18 , G06F15/00 , G01R23/20
CPC分类号： G01R21/133 , G01R13/029 , G01R23/18 , G01R23/20 , G06F15/00
摘要： A test and measurement instrument according to an embodiment of the present invention automatically detects excessive in-band but out-of-span energy and notifies the user of the condition.
摘要翻译：根据本发明的实施例的测试和测量仪器自动检测过度的带内但超能量的能量，并向用户通知该状况。

7. 发明授权

US08649989B2 Time-domain triggering in a test and measurement instrument 有权
标题翻译：测试和测量仪器中的时域触发
公开(公告)号：US08649989B2
公开(公告)日：2014-02-11
申请号：US12856472
申请日：2010-08-13
申请人： Alfred K. Hillman, Jr. , Marcus K. Da Silva , Kathryn A. Engholm , Kenneth P. Dobyns
发明人： Alfred K. Hillman, Jr. , Marcus K. Da Silva , Kathryn A. Engholm , Kenneth P. Dobyns
IPC分类号： G01R23/16
CPC分类号： G01R13/0254 , G01R23/16
摘要： Embodiments of this invention provide enhanced triggering capabilities such as frequency and phase triggering in a test and measurement instrument, such as a Real-Time Spectrum Analyzer (RTSA) or oscilloscope. A test and measurement instrument can include input terminals to receive RF signals, an ADC to digitize the RF signals, a digital downconverter to produce I and Q baseband component information, and a power detector to determine a power level using the I and Q information. A comparator compares the power level received from the power detector with a user-definable power threshold, and produces a logic signal for enabling one or more phase or frequency demodulators. The one or more demodulators produce IQ-based time-domain traces derived from the I and Q component information when the power level determined by the power detector exceeds the power threshold. Trigger circuitry is configured to trigger on an event responsive to a delayed trigger enable signal.
摘要翻译：本发明的实施例提供了诸如实时频谱分析仪（RTSA）或示波器之类的测试和测量仪器中的增强的触发能力，例如频率和相位触发。测试和测量仪器可以包括用于接收RF信号的输入端子，用于数字化RF信号的ADC，用于产生I和Q基带分量信息的数字下变频器，以及使用I和Q信息来确定功率电平的功率检测器。比较器将从功率检测器接收的功率电平与用户可定义的功率阈值进行比较，并产生用于启用一个或多个相位或频率解调器的逻辑信号。当由功率检测器确定的功率电平超过功率阈值时，一个或多个解调器产生从I和Q分量信息导出的基于IQ的时域轨迹。触发电路被配置为在响应于延迟的触发使能信号的事件上触发。

8. 发明授权

US4593242A Control circuit for a delayed sweep oscilloscope 失效
标题翻译：延迟扫描示波器的控制电路
公开(公告)号：US4593242A
公开(公告)日：1986-06-03
申请号：US545560
申请日：1983-10-26
申请人： L. Rodney Bristol , Alfred K. Hillman, Jr. , William Q. Law
发明人： L. Rodney Bristol , Alfred K. Hillman, Jr. , William Q. Law
IPC分类号： G01R13/32 , G01R13/20 , G01R13/22
CPC分类号： G01R13/20
摘要： In accordance with the present invention, a control circuit for operating a delayed sweep oscilloscope includes a reversible counter which may be selectively incremented or decremented to establish a number of trigger-circuit operating functions and modes, such as trigger source selection, coupling, level, and sweep mode. A plurality of light sources behind a plastic overlay laminated to the front panel indicate the various functions and modes.
摘要翻译：根据本发明，用于操作延迟扫描示波器的控制电路包括可选择地递增或递减的可逆计数器，以建立多个触发电路操作功能和模式，诸如触发源选择，耦合，电平，和扫描模式。层压到前面板上的塑料覆盖层后面的多个光源指示各种功能和模式。

9. 发明授权

US08880369B2 Occupancy measurement and triggering in frequency domain bitmaps 有权
标题翻译：频域位图中的占用测量和触发
公开(公告)号：US08880369B2
公开(公告)日：2014-11-04
申请号：US12573026
申请日：2009-10-02
申请人： Robert E. Tracy , Kathryn A. Engholm , Alfred K. Hillman, Jr.
发明人： Robert E. Tracy , Kathryn A. Engholm , Alfred K. Hillman, Jr.
IPC分类号： G01R23/16 , G01R13/02
CPC分类号： G01R13/0254 , G01R13/0263 , G01R23/16 , G01V3/00
摘要： A method is disclosed for triggering upon signal events occurring in frequency domain signals. The method includes repeatedly sampling a time-varying signal and generating a plurality of digital frequency domain spectrums based on the samples of the time-varying signal. A frequency domain bitmap for the time-varying signal is repeatedly updated via application of the digital frequency domain spectrums. The method further includes selecting a portion of the frequency domain bitmap, determining a signal occupancy in the selected portion, and triggering a capture of the time-varying signal based on and in response to the occupancy determination for the selected portion of the bitmap.
摘要翻译：公开了一种用于在频域信号中发生信号事件时进行触发的方法。该方法包括基于时变信号的样本重复采样时变信号并产生多个数字频域频谱。通过应用数字频域频谱重新更新时变信号的频域位图。该方法还包括选择频域位图的一部分，确定所选部分中的信号占有率，以及基于并响应于位图的选定部分的占用确定来触发时变信号的捕获。

10. 发明授权

US08452559B2 Density trace measurement 有权
标题翻译：密度跟踪测量
公开(公告)号：US08452559B2
公开(公告)日：2013-05-28
申请号：US12778730
申请日：2010-05-12
申请人： Kathryn A. Engholm , Alfred K. Hillman, Jr. , John F. Turpin , David H. Eby
发明人： Kathryn A. Engholm , Alfred K. Hillman, Jr. , John F. Turpin , David H. Eby
IPC分类号： G01R13/02
CPC分类号： G01R23/18 , G01R13/0254
摘要： A “density trace” according to an embodiment of the present invention is formed by measuring the density of each column of a frequency domain bitmap above a user-specified “amplitude threshold.” 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 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 of a test and measurement instrument and used to generate a trigger signal. The trigger detector compares the density trace to a user-specified “density threshold” and generates the trigger signal when the value of any point of the density trace violates the density threshold.
摘要翻译：根据本发明的实施例的“密度迹线”是通过测量频域位图的每列的密度高于用户指定的“振幅阈值”来形成的。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之和。密度跟踪提供了一种方便的方法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中，并用于产生触发信号。触发检测器将密度跟踪与用户指定的“密度阈值”进行比较，并且当密度跟踪的任何点的值超过密度阈值时，触发信号产生触发信号。

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