公开(公告)号：US20200304110A1

公开(公告)日：2020-09-24

申请号：US16894778

申请日：2020-06-06

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：US10094868B2

公开(公告)日：2018-10-09

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: G06F19/00 ,  G01R31/28 ,  G01R13/02

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.

公开(公告)号：US20130231883A1

公开(公告)日：2013-09-05

申请号：US13861998

申请日：2013-04-12

Applicant: TEKTRONIX, INC.

Inventor： Patrick A. Smith ,  David L. Kelly ,  Que T. Tran ,  Shane A. Hazzard

IPC: G06F19/00 ,  G01R13/02

CPC classification number: G06F19/00 ,  G01R13/02 ,  G01R13/0254 ,  G01R31/02

Abstract: A test and measurement apparatus, system, and method for synchronizing an acquisition or triggering system to a specific burst of interest. The subject apparatus and method triggers on varying energy content of a signal qualified by time in the presence of high-frequency input signal bursts, by using an adjustable pulse width envelope detector, disposed in the signal path of the trigger circuitry, as a digital rectifier or to otherwise process and extract an envelope signal. An RF envelope probe having an analog envelope detector among other suitable components is disclosed. A method is implemented for isolating an interval of interest in a signal under test. An envelope detector circuit produces an envelope signal from the signal. Trigger circuitry receives the envelope signal from the envelope detector, and isolates the interval of interesting in the signal under test using the envelope signal.

Abstract translation: 一种用于将采集或触发系统同步到感兴趣的特定突发的测试和测量装置，系统和方法。 主题装置和方法通过使用设置在触发电路的信号路径中的可调脉冲宽度包络检测器作为数字整流器来触发在存在高频输入信号脉冲串的情况下由时间限定的信号的变化的能量含量 或以其他方式处理和提取包络信号。 公开了一种具有模拟包络检测器的RF包络探测器以及其它合适的部件。 实施用于隔离被测信号中的感兴趣间隔的方法。 包络检测器电路从信号产生包络信号。 触发电路从包络检测器接收包络信号，并使用包络信号隔离被测信号中有趣的间隔。

公开(公告)号：US10481179B2

公开(公告)日：2019-11-19

申请号：US15172541

申请日：2016-06-03

Applicant: Tektronix, Inc.

Inventor： David L. Kelly ,  Patrick A. Smith

IPC: G01R23/02 ,  G01R13/32 ,  G01R13/02

Abstract: A test and measurement instrument including an input port configured to receive an input signal. One or more divider circuits, coupled to the input port, employ a plurality of divide ratios such that each divide ratio scales an event signal indicating events in the input signal by a predetermined integer value. A control system is also included. The control system is configured to iteratively determine an estimated signal frequency of the event signal, and automatically select a divide ratio for the event signal based on the estimated signal frequency. The instrument may also include one or more counters to count triggers in the event signal subsequent to application of the divide ratio. The instrument may also employ frequency hysteresis to prevent chatter in divide ratio selection.

公开(公告)号：US20180372780A1

公开(公告)日：2018-12-27

申请号：US15796722

申请日：2017-10-27

Applicant: Tektronix, Inc.

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

IPC: G01R13/02

Abstract: A test and measurement instrument, such as an oscilloscope, including one or more ports to receive one or more signals from a device under test, a trigger enable logic circuit configured to output a trigger enabled signal when a trigger enable event occurs within the one or more signals, the trigger enable event being a real-time event of the one or more signals, one or more trigger logic circuits configured to generate a plurality of trigger signals when the trigger enable signal is received, each trigger signal being generated when a trigger event occurs within one of the one or more signals, and an acquisition circuit configured to acquire and store data in a memory in response to each of the trigger signals.

公开(公告)号：US20170207987A1

公开(公告)日：2017-07-20

申请号：US15395600

申请日：2016-12-30

Applicant: Tektronix, Inc.

Inventor： David L. Kelly ,  Patrick A. Smith ,  Jed H. Andrews ,  Keith D. Rule

IPC: H04L12/26 ,  H04L12/24

CPC classification number: H04L43/08 ,  H04L41/0631 ,  H04L41/0816 ,  H04L41/22 ,  H04L43/04 ,  H04L43/50

Abstract: An apparatus and method that captures a complete history of serial network Link Training negotiations by continuously monitoring multiple analog signals representing both sides of full duplex lanes in real-time by pattern matching the Link Training Frame Marker and the subsequent negotiation request/response data values. The apparatus and method compare the digitized version of the incoming signal against a nominal pattern at the start to find the Frame Markers and Control Channel data, storing only those Control Channel data values that do not match the current compare pattern, and further by updating the current compare pattern to the new pattern just received, so that only the transitions in the data values are stored, thereby vastly reducing the amount of data presented to the user, but nonetheless retaining the complete substantive history of the Link Training negotiations.

公开(公告)号：US20140049328A1

公开(公告)日：2014-02-20

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。

公开(公告)号：US11552620B2

公开(公告)日：2023-01-10

申请号：US16894778

申请日：2020-06-06

Applicant: Tektronix, Inc.

Inventor： Patrick A. Smith ,  Daniel G. Knierim

IPC: G01R13/02 ,  H03K3/037 ,  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：US10365300B2

公开(公告)日：2019-07-30

申请号：US15395593

申请日：2016-12-30

Applicant: Tektronix, Inc.

Inventor： Daniel G. Knierim ,  David L. Kelly ,  Patrick A. Smith

IPC: G01R23/16 ,  G01R13/02

Abstract: This disclosure relates generally to test and measurement instruments structured to detect that a series of events occurred, and structured to generate a trigger signal in response to detecting that a final event in the series of events occurred. The trigger may be generated based on a timeout signal, or based on another event, trigger, or signal. Stored data in the acquisition memory may be marked relative to the detection of the final event. An external forced timeout signal may control which in a series of events is marked as a final event. The triggering on final event may be enabled after another trigger is satisfied, and may be used as one of many different types of triggers.

公开(公告)号：US08924175B2

公开(公告)日：2014-12-30

申请号：US13862035

申请日：2013-04-12

Applicant: Tektronix, Inc.

Inventor： Patrick A. Smith ,  David L. Kelly ,  Que T. Tran ,  Shane A. Hazzard

IPC: G01R13/02 ,  G01R31/02 ,  G06F19/00

CPC classification number: G06F19/00 ,  G01R13/02 ,  G01R13/0254 ,  G01R31/02

Abstract: A test and measurement apparatus, system, and method for synchronizing an acquisition or triggering system to a specific burst of interest. The subject apparatus and method triggers on varying energy content of a signal qualified by time in the presence of high-frequency input signal bursts, by using an adjustable pulse width envelope detector, disposed in the signal path of the trigger circuitry, as a digital rectifier or to otherwise process and extract an envelope signal. An RF envelope probe having an analog envelope detector among other suitable components is disclosed. A method is implemented for isolating an interval of interest in a signal under test. An envelope detector circuit produces an envelope signal from the signal. Trigger circuitry receives the envelope signal from the envelope detector, and isolates the interval of interesting in the signal under test using the envelope signal.

Abstract translation: 一种用于将采集或触发系统同步到感兴趣的特定突发的测试和测量装置，系统和方法。 主题装置和方法通过使用设置在触发电路的信号路径中的可调脉冲宽度包络检测器作为数字整流器来触发在存在高频输入信号脉冲串的情况下由时间限定的信号的变化的能量含量 或以其他方式处理和提取包络信号。 公开了一种具有模拟包络检测器的RF包络探测器以及其它合适的部件。 实施用于隔离被测信号中的感兴趣间隔的方法。 包络检测器电路从信号产生包络信号。 触发电路从包络检测器接收包络信号，并使用包络信号隔离被测信号中有趣的间隔。