公开(公告)号：US09152520B2

公开(公告)日：2015-10-06

申请号：US14038743

申请日：2013-09-26

Applicant: Texas Instruments, Incorporated

Inventor： Anshul Gahoi ,  Raghavendra Santhanagopal ,  Pradeep Kumar Babu

IPC: G06F17/50 ,  G06F9/44 ,  G01R31/28 ,  G01R27/28 ,  G06F11/27 ,  G01R13/28

CPC classification number: G06F11/27 ,  G01R13/28 ,  G01R31/3177 ,  G06F9/44 ,  G06F11/273 ,  G06F17/5027 ,  G06F17/5054

Abstract: A programmable interface-based validation and debug system includes, for example, a test connector that is arranged to communicatively couple a design under test to the test fixture. A programmable logic interface is communicatively coupled to the test connector and is arranged to receive a downloadable test bench, where the downloadable test bench is arranged to apply test vectors from a first set of test vectors to a first test control bus. A multiplexer is arranged to selectively couple one of the first test control bus and a second test control bus to a shared test bus that is coupled to the test connector, where the second test control bus is arranged to apply test vectors from a second set of test vectors provided by, for example, a debugger that is operated by a human.

Abstract translation: 基于可编程接口的验证和调试系统包括例如测试连接器，该测试连接器布置成将被测设备通信地耦合到测试夹具。 可编程逻辑接口通信地耦合到测试连接器并且被布置成接收可下载的测试台，其中可下载的测试台被布置为将测试向量从第一组测试向量应用到第一测试控制总线。 多路复用器被布置为选择性地将第一测试控制总线和第二测试控制总线中的一个耦合到耦合到测试连接器的共享测试总线，其中第二测试控制总线被布置成将测试向量从第二组 测试向量由例如由人操作的调试器提供。

公开(公告)号：US06907365B2

公开(公告)日：2005-06-14

申请号：US10015125

申请日：2001-12-11

Applicant: Lawrence Steven Salant ,  Anthony Cake ,  John Gregory Hannes

Inventor： Lawrence Steven Salant ,  Anthony Cake ,  John Gregory Hannes

IPC: G01R13/20 ,  G01R13/02 ,  G01R13/28 ,  G06F3/0481

CPC classification number: G01R13/28 ,  G01R13/0227 ,  G06F3/0481

Abstract: An oscilloscope apparatus, comprising a display for displaying a plurality of objects, a toolbar displayed on the display, and a user interface for selecting an object. The display displays one or more functions on the toolbar corresponding to the selected object.

Abstract translation: 一种示波器装置，包括用于显示多个对象的显示器，显示在显示器上的工具栏，以及用于选择对象的用户界面。 显示屏将显示与所选对象相对应的工具栏上的一个或多个功能。

公开(公告)号：US06807496B2

公开(公告)日：2004-10-19

申请号：US10139012

申请日：2002-05-02

Applicant: John J. Pickerd

Inventor： John J. Pickerd

IPC: G01R1302

CPC classification number: G01R13/345 ,  G01R13/28

Abstract: A real time digital storage oscilloscope acquires a long data record in an acquisition memory and processes the data of the long data record to search for predetermined events. Upon detection of such a predetermined event, circuitry generates an event detect signal, and data comprising an acquisition frame surrounding the event is applied to a waveform processing and display system. The long data record can be replayed in order to perform additional searches throughout the data record using different search criteria, thereby permitting multiple waveforms to be displayed simultaneously, each being captured as a result of a different user-defined event. A screen display may be programmed to display a different kind of event such as Runt signal, Overshoot, or Pulsewidth Violation in each waveform, or to display multiple occurrences of the same kind of event such as Runt signal in each waveform.

Abstract translation: 实时数字存储示波器在采集存储器中获取长数据记录，并处理长数据记录的数据以搜索预定事件。 在检测到这样的预定事件时，电路产生事件检测信号，并且将包括事件的采集帧的数据应用于波形处理和显示系统。 可以重播长数据记录，以便使用不同的搜索条件在整个数据记录中执行附加搜索，从而允许同时显示多个波形，每个波形作为不同的用户定义事件的结果被捕获。 屏幕显示可以被编程以在每个波形中显示不同类型的事件，例如Runt信号，过冲或脉冲宽度违例，或者显示出每个波形中相同类型事件（例如Runt信号）的多次出现。

公开(公告)号：US20040174818A1

公开(公告)日：2004-09-09

申请号：US10374872

申请日：2003-02-25

Inventor： Donald A. Zocchi

IPC: H04L001/00

CPC classification number: G01R13/28

Abstract: A primary test and measurement device merges a primary (i.e., local) a non-primary (i.e., remote) waveform data to produce a display signal that, when presented on a display device, shows both waveforms. The primary measuring device may utilize respective transparent windows for each waveform such that the transparent windows may be overlaid during presentation to display waveform data from the non-primary measuring devices upon the primary measuring device. In this manner, a plurality of test and measurement devices are used to provide a single combined image for presentation.

Abstract translation: 初级测试和测量设备将初级（即本地）非初级（即远程）波形数据合并以产生当在显示设备上呈现时显示两个波形的显示信号。 主要测量装置可以为每个波形使用相应的透明窗口，使得透明窗口在呈现期间可以被覆盖以在主测量装置上显示来自非主要测量装置的波形数据。 以这种方式，使用多个测试和测量装置来提供用于呈现的单个组合图像。

公开(公告)号：US20040034500A1

公开(公告)日：2004-02-19

申请号：US10458966

申请日：2003-06-11

Inventor： Michael Goericke

IPC: G06F015/00

CPC classification number: G01R13/28 ,  G01R19/2516

Abstract: A method of displaying a number of measurement curves is described. The measurement curves are displayed in at least two windows. Each one of the windows comprises two axes. One or more measurement curves are displayed in each one of the windows. The method comprises the steps of changing the scale of one of the curves in the direction of at least one of the two axes by a user and synchronizing at least one of the other curves of one or more other windows with respect to one of the two axes depending on said change carried out by the user.

Abstract translation: 描述显示多个测量曲线的方法。 测量曲线显示在至少两个窗口中。 每个窗口包括两个轴。 每个窗口中都会显示一个或多个测量曲线。 该方法包括以下步骤：由用户改变两个轴中的至少一个方向上的曲线中的一个曲线的比例，并且使两个轴中的一个之一上的一个或多个其他窗口的至少一个其它曲线同步 轴取决于用户执行的所述更改。

公开(公告)号：US20030208330A1

公开(公告)日：2003-11-06

申请号：US10139012

申请日：2002-05-02

Inventor： John J. Pickerd

IPC: G06F019/00

CPC classification number: G01R13/345 ,  G01R13/28

Abstract: A real time digital storage oscilloscope acquires a long data record in an acquisition memory and processes the data of the long data record to search for predetermined events. Upon detection of such a predetermined event, circuitry generates an event detect signal, and data comprising an acquisition frame surrounding the event is applied to a waveform processing and display system. The long data record can be replayed in order to perform additional searches throughout the data record using different search criteria, thereby permitting multiple waveforms to be displayed simultaneously, each being captured as a result of a different user-defined event. A screen display may be programmed to display a different kind of event such as Runt signal, Overshoot, or Pulsewidth Violation in each waveform, or to display multiple occurrences of the same kind of event such as Runt signal in each waveform.

Abstract translation: 实时数字存储示波器在采集存储器中获取长数据记录，并处理长数据记录的数据以搜索预定事件。 在检测到这样的预定事件时，电路产生事件检测信号，并且将包括事件的采集帧的数据应用于波形处理和显示系统。 可以重播长数据记录，以便使用不同的搜索条件在整个数据记录中执行附加搜索，从而允许同时显示多个波形，每个波形作为不同的用户定义事件的结果被捕获。 屏幕显示可以被编程以在每个波形中显示不同类型的事件，例如Runt信号，过冲或脉冲宽度违例，或者显示出每个波形中相同类型事件（例如Runt信号）的多次出现。

公开(公告)号：US5594329A

公开(公告)日：1997-01-14

申请号：US526650

申请日：1995-09-11

Applicant: Rudolf G. van Ettinger ,  Martinus P. Eikendal

Inventor： Rudolf G. van Ettinger ,  Martinus P. Eikendal

IPC: G01R1/30 ,  G01R13/28 ,  G01R19/00

CPC classification number: G01R1/30 ,  G01R13/28 ,  H04L7/0008

Abstract: A method and apparatus for obtaining a voltage-isolated measurement channel in a measurement instrument is provided. An input signal is multiplied with a clock signal to obtain a modulated input signal that is coupled to an input winding of a balanced transformer. The modulated input signal is electromagnetically coupled from the input winding to an output winding. At the same time, the input winding and the output winding are voltage-isolated, meaning that the portion of the measurement channel coupled to the input winding is "floated" with the input signal whereas the remaining portion of the measurement channel is referenced to instrument ground. A sampling circuit coupled to the output winding samples the modulated input signal in the manner of a synchronous detector to extract the original input signal voltage which is provided to an analog to digital converter which generates the digital measurement values. Each measurement channel is voltage-isolated from the instrument and from all other measurement channels in the instrument.

Abstract translation: 提供了一种用于在测量仪器中获得电压隔离测量通道的方法和装置。 输入信号与时钟信号相乘以获得耦合到平衡变压器的输入绕组的调制输入信号。 调制输入信号从输入绕组电磁耦合到输出绕组。 同时，输入绕组和输出绕组是电压隔离的，这意味着耦合到输入绕组的测量通道的部分与输入信号“浮动”，而测量通道的剩余部分参考仪器 地面。 耦合到输出绕组的采样电路以同步检测器的方式采样调制的输入信号，以提取提供给产生数字测量值的模数转换器的原始输入信号电压。 每个测量通道与仪器和仪器中所有其他测量通道电压隔离。

公开(公告)号：US4574278A

公开(公告)日：1986-03-04

申请号：US496192

申请日：1983-05-19

Applicant: Steven P. Apelman

Inventor： Steven P. Apelman

IPC: G01R13/28 ,  G01R13/34 ,  G09G1/00

CPC classification number: G01R13/28 ,  G01R13/34

Abstract: A video synthesizer is adapted for connection to the input circuitry of an oscilloscope, and includes sampling and multiplexing circuitry for presentation of a multiplicity of input signals to a single channel of the oscilloscope. The signals are sampled sequentially, and the samples of respective ones of the signals are multiplexed with corresponding reference voltage levels of a voltage divider so as to vertically displace the signals on the face of the oscilloscope. For periodic input signals, the sequential sampling is repeated at a rate which is not harmonically related to the periodicity of the input signals to fully regenerate the signal waveforms on the oscilloscope. A memory is provided for storing intervals of the input signals in the case of nonperiodic signals, the stored signals then being outputted to the sampling and multiplexing circuitry. By presetting an address counter of the memory, and by selecting a data sampling rate of the memory, the displayed waveforms can be displaced along the x axis of the oscilloscope and expanded to facilitate visual inspection. To provide a maximum rate of sampling, the multiplexing is accomplished with an interlacing of the reference voltages to minimize voltage jumps and reduce the bandwidth of the sample sequence.

Abstract translation: 视频合成器适于连接到示波器的输入电路，并且包括用于将多个输入信号呈现给示波器的单个通道的采样和复用电路。 信号被顺序采样，并且各个信号的样本与分压器的相应参考电压电平多路复用，以垂直位移示波器表面上的信号。 对于周期性输入信号，以与输入信号的周期性不相关的速率重复顺序采样，以完全再生示波器上的信号波形。 提供存储器用于在非周期性信号的情况下存储输入信号的间隔，然后存储的信号被输出到采样和复用电路。 通过预置存储器的地址计数器，并通过选择存储器的数据采样率，显示的波形可以沿着示波器的x轴移位，并扩展以便于目视检查。 为了提供最大采样率，通过对参考电压进行隔行扫描来实现多路复用，以使电压跳变最小化并降低采样序列的带宽。

公开(公告)号：US4567405A

公开(公告)日：1986-01-28

申请号：US555785

申请日：1983-11-28

Applicant: Lloyd R. Bristol

Inventor： Lloyd R. Bristol

IPC: G01R13/28

CPC classification number: G01R13/28

Abstract: An oscillographic device receives plural vertical inputs which are multiplexed to provide plural traces by means of the same electron beam. Switching times of the multiplexer are varied during the display to avoid gaps in waveform presentation when the period of the device's horizontal sweep is a near multiple of the switching period of the multiplexer.

Abstract translation: 示波器件接收多个垂直输入，这些垂直输入被多路复用以通过相同的电子束提供多个迹线。 多路复用器的切换时间在显示期间变化，以避免当器件的水平扫描的周期是多路复用器的开关周期的接近倍数时波形呈现中的间隙。

公开(公告)号：US4551656A

公开(公告)日：1985-11-05

申请号：US437971

申请日：1982-11-01

Applicant: Arthur J. Metz

Inventor： Arthur J. Metz

IPC: G01R13/24 ,  G01R13/28 ,  G01R13/32

CPC classification number: G01R13/24 ,  G01R13/28 ,  G01R13/32

Abstract: An oscilloscope is provided with a dual time base system in which the nonlinear startup segment of the main sweep is eliminated before delay time comparison, thereby facilitating accurate differential measurements down to and including the triggering event (zero time). System delays are built in to ensure that the displayed sweep trace also begins at the left edge of the viewing screen, and, moreover, the triggering event may be viewed on both the main and delayed sweeps. The built-in system delays may be programmable to facilitate delay matching of vertical channels or time matching of independent sweep operation.

Abstract translation: 示波器具有双时基系统，其中在延迟时间比较之前消除了主扫描的非线性启动段，从而有助于精确的差分测量，直到并包括触发事件（零时间）。 内置系统延迟以确保显示的扫描轨迹也从观察屏幕的左边缘开始，此外，可以在主扫描和延迟扫描两者之间查看触发事件。 内置的系统延迟可以是可编程的，以便于垂直信道的延迟匹配或独立扫描操作的时间匹配。