公开(公告)号：US20200212923A1

公开(公告)日：2020-07-02

申请号：US16554548

申请日：2019-08-28

Applicant: Tektronix, Inc.

Inventor： Gregory A. Martin ,  Patrick Satarzadeh ,  John J. Pickerd ,  Daniel G. Knierim

IPC: H03M1/10 ,  H03M1/00 ,  H03M1/66

Abstract: A test and measurement instrument including a digital-to-analog converter having an output sample rate configured to receive a digital sample waveform and a reference clock and output an analog waveform at the sample rate, a waveform synthesizer configured to receive an input waveform having a baud rate and output a digital sample waveform having a baud rate less than the sample rate of the digital-to-analog converter, and a port configured to output the analog waveform.

公开(公告)号：US10680588B2

公开(公告)日：2020-06-09

申请号：US14995008

申请日：2016-01-13

Applicant: Tektronix, Inc.

Inventor： Patrick A. Smith ,  Daniel G. Knierim

IPC: H03K3/037 ,  G01R13/02 ,  H03K19/20

Abstract: Methods of triggering a test and measurement instrument having a plurality of inputs include the step of generating a trigger signal in response to every occurrence of any one of a plurality of specified trigger events. A first specified trigger event occurs in at least a first one of the inputs and a second specified trigger event occurs in at least a second one of the plurality of inputs. A specified trigger event may include at least one selected input from the plurality of inputs and a selected activity type. Some methods include configuring each of a plurality of event activity detectors to produce a pulse in a logic signal in response to every occurrence of one of the specified trigger events. The plurality of logic signals are combined in a logical OR circuit to generate the trigger signal. Trigger circuits configured according to these methods are also disclosed.

公开(公告)号：US20200027676A1

公开(公告)日：2020-01-23

申请号：US16042146

申请日：2018-07-23

Applicant: Tektronix, Inc.

Inventor： James D. Pileggi ,  Daniel G. Knierim

IPC: H01H67/06 ,  H01H63/06 ,  H01H65/00 ,  H01H63/34 ,  H01H50/02

Abstract: An electronic switch includes a substrate and a rotator assembly. The rotator assembly is configured to prevent rotation between a first rotational configuration and a second rotational configuration in a first translational position of the rotator assembly, while the rotator assembly is configured to rotate between the first rotational configuration and the second rotational configuration in a second translational position of the rotator assembly. The second translational position of the rotator assembly is translationally offset from the first translational position of the rotator assembly. An electrical contact of the rotator assembly is configured to electrically connect an electronic input path of the substrate to an electronic output path of the substrate in the first rotational configuration and first translational position of the rotator assembly, but not to electrically connect the electronic input path to the electronic output path in the second rotational configuration of the rotator assembly or in the second translational position of the rotator assembly.

公开(公告)号：US10145822B2

公开(公告)日：2018-12-04

申请号：US14745757

申请日：2015-06-22

Applicant: Tektronix, Inc.

Inventor： Daniel G. Knierim ,  Christopher R. Muggli ,  Martin Rockwell ,  Ira G. Pollock

IPC: G01N29/30 ,  G01N29/24 ,  G01R1/067 ,  G01R31/317

Abstract: A probe, including a first input configured to receive a first input signal, a second input configured to receive a second input signal, a first cable connected to the first input, a second cable connected to the second input, an electronically adjustable delay connected to the first cable, the electronically adjustable delay configured to delay the first input signal to remove a skew between the first input signal and the second input signal, and an amplifier configured to receive the first input signal from the electronically adjustable delay and a second input signal.

公开(公告)号：US10041975B2

公开(公告)日：2018-08-07

申请号：US14949562

申请日：2015-11-23

Applicant: Tektronix, Inc.

Inventor： Daniel G. Knierim ,  William A. Hagerup ,  Barton T. Hickman ,  Ira G. Pollock

IPC: G01R1/067 ,  G01R31/02

Abstract: A test system can include a probe suitable to be coupled between a test measurement device and a device under test (DUT). The probe can include a signal input to receive an active signal from the DUT and a signal output to provide the active signal to the test measurement device. The probe can also include an input ground to connect to the DUT ground and an output ground to connect to the test measurement device ground. A probe ground connection checking device can automatically determine whether the probe ground connections to the DUT ground and test measurement device ground are solid.

公开(公告)号：US09859908B2

公开(公告)日：2018-01-02

申请号：US15347600

申请日：2016-11-09

Applicant: Tektronix, Inc.

Inventor： Daniel G. Knierim

IPC: H03M1/50 ,  H03M1/12 ,  G01R13/02 ,  G01R19/25

CPC classification number: H03M1/121 ,  G01R13/0236 ,  G01R13/0272 ,  G01R19/2506 ,  H03M1/1215

Abstract: A test and measurement instrument, including a splitter configured to split an input signal having a particular bandwidth into a plurality of split signals, each split signal including substantially the entire bandwidth of the input signal, a plurality of harmonic mixers, each harmonic mixer configured to mix an associated split signal of the plurality of split signals with an associated harmonic signal to generate an associated mixed signal, a plurality of digitizers, each digitizer configured to digitize a mixed signal of an associated harmonic mixer of the plurality of harmonic mixers, and a linear time-periodic filter configured to receive the digitized mixed signal from each of the digitizers and output a time-interleaved signal. A first-order harmonic of at least one harmonic signal associated with the harmonic mixers is different from a sample rate of at least one of the digitizers.

公开(公告)号：US09525427B1

公开(公告)日：2016-12-20

申请号：US14851937

申请日：2015-09-11

Applicant: Tektronix, Inc.

Inventor： Daniel G. Knierim

IPC: G01R23/14 ,  H03M1/12

CPC classification number: H03M1/121 ,  G01R13/0236 ,  G01R13/0272 ,  G01R19/2506 ,  H03M1/1215

Abstract: A test and measurement instrument, including a splitter configured to split an input signal having a particular bandwidth into a plurality of split signals, each split signal including substantially the entire bandwidth of the input signal, a plurality of harmonic mixers, each harmonic mixer configured to mix an associated split signal of the plurality of split signals with an associated harmonic signal to generate an associated mixed signal, a plurality of digitizers, each digitizer configured to digitize a mixed signal of an associated harmonic mixer of the plurality of harmonic mixers, and a linear time-periodic filter configured to receive the digitized mixed signal from each of the digitizers and output a time-interleaved signal. A first-order harmonic of at least one harmonic signal associated with the harmonic mixers is different from a sample rate of at least one of the digitizers.

Abstract translation: 一种测试和测量仪器，包括分配器，其被配置为将具有特定带宽的输入信号分成多个分离信号，每个分离信号基本上包括输入信号的整个带宽，多个谐波混频器，每个谐波混频器被配置为 将所述多个分离信号的相关联的分离信号与相关联的谐波信号混合以产生相关联的混合信号，多个数字化仪，每个数字转换器被配置为数字化所述多个谐波混合器中的相关联的谐波混频器的混合信号，以及 线性时间周期滤波器，被配置为从每个数字转换器接收数字化的混合信号，并输出时间交织的信号。 与谐波混频器相关联的至少一个谐波信号的一阶谐波与至少一个数字化仪的采样率不同。

公开(公告)号：US09306590B2

公开(公告)日：2016-04-05

申请号：US14254373

申请日：2014-04-16

Applicant: Tektronix, Inc.

Inventor： Daniel G. Knierim ,  James S. Lamb

IPC: G01R23/14 ,  H03M1/12 ,  G01R13/02

CPC classification number: H03M1/121 ,  G01R13/0272

Abstract: A test and measurement instrument including a splitter configured to split an input signal having a particular bandwidth into a plurality of split signals, each split signal including substantially the entire bandwidth of the input signal; a plurality of harmonic mixers, each harmonic mixer configured to mix an associated split signal of the plurality of split signals with an associated harmonic signal to generate an associated mixed signal; and a plurality of digitizers, each digitizer configured to digitize a mixed signal of an associated harmonic mixer of the plurality of harmonic mixers. A first-order harmonic of at least one harmonic signal associated with the harmonic mixers is different from an effective sample rate of at least one of the digitizers.

Abstract translation: 一种测试和测量仪器，包括分配器，其被配置为将具有特定带宽的输入信号分割成多个分离信号，每个分离信号基本上包括输入信号的整个带宽; 多个谐波混合器，每个谐波混频器被配置为将所述多个分离信号的相关联的分离信号与相关联的谐波信号混合以产生相关联的混合信号; 以及多个数字转换器，每个数字转换器被配置为数字化多个谐波混频器中相关联的谐波混频器的混合信号。 与谐波混频器相关联的至少一个谐波信号的一阶谐波与至少一个数字化仪的有效采样率不同。

公开(公告)号：US20150293170A1

公开(公告)日：2015-10-15

申请号：US14553405

申请日：2014-11-25

Applicant: Tektronix, Inc.

Inventor： Daniel G. Knierim ,  David L. Kelly ,  Jed H. Andrews ,  Michael A. Martin ,  Patrick A. Smith

IPC: G01R31/28

CPC classification number: G01R31/28 ,  G01R13/0254

Abstract: A test and measurement instrument, including an input configured to receive a signal-under-test, a user input configured to accept a first trigger event and a second trigger event from a user, a first trigger decoder configured to trigger on an occurrence of the first trigger event and generate a first trigger signal, a second trigger decoder configured to trigger on an occurrence of the second trigger event occurring after the first trigger event and generate a second trigger signal, and an acquisition system configured to acquire the signal-under-test in response to the first trigger signal and store the acquired signal-under-test based on whether the second trigger signal validates or invalidates the first trigger signal.

Abstract translation: 一种测试和测量仪器，包括被配置为接收待测信号的输入，被配置为接受来自用户的第一触发事件和第二触发事件的用户输入;第一触发解码器，被配置为在发生 第一触发事件并产生第一触发信号，第二触发解码器被配置为在发生第一触发事件之后发生的第二触发事件触发并产生第二触发信号，并且获取系统被配置为获取第一触发事件， 根据所述第一触发信号进行测试，并且基于所述第二触发信号是否验证所述第一触发信号或使所述第一触发信号无效来存储所获取的待测信号。

公开(公告)号：US09077322B2

公开(公告)日：2015-07-07

申请号：US13928889

申请日：2013-06-27

Applicant: Tektronix, Inc.

Inventor： Patrick A. Smith ,  Daniel G. Knierim

IPC: H03K3/03

CPC classification number: H03K3/0315 ,  H03K3/0322

Abstract: A ring oscillator timer circuit can include a plurality of electrical components arranged in a cascaded combination of delay stages connected in a closed loop chain. The timer circuit can begin oscillation a programmable number of gate delays after receiving a start signal. In some examples, the number of gate delays can be programmed to fractional values. In further examples, the ring oscillator timer circuit can include a counter having an input electrically coupled to an output of a reset component.

Abstract translation: 环形振荡器定时器电路可以包括以连接在闭环链中的延迟级的级联组合布置的多个电气部件。 定时器电路可以在接收到启动信号之后开始振荡可编程的门延迟数量。 在一些示例中，门延迟的数量可以编程为分数值。 在另外的例子中，环形振荡器定时器电路可以包括具有电耦合到复位部件的输出的输入的计数器。