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    SYSTEM AND METHOD FOR SEPARATION AND CLASSIFICATION OF SIGNALS USING CYCLIC LOOP IMAGES
    41.
    发明申请
    SYSTEM AND METHOD FOR SEPARATION AND CLASSIFICATION OF SIGNALS USING CYCLIC LOOP IMAGES 有权

    公开(公告)号：US20210390456A1

    公开(公告)日：2021-12-16

    申请号：US17345342

    申请日：2021-06-11

    Applicant: Tektronix, Inc.

    Inventor： John J. Pickerd ,  Saifee F. Jasdanwala

    IPC: G06N20/00 ,  G01R31/317

    Abstract: A system to classify signals includes an input to receive incoming waveform data; a memory, and one or more processors configured to execute code to cause the one or more processors to: generate a ramp sweep signal from the incoming waveform data, locate a data burst in the incoming waveform data using a burst detector, receive a signal from the burst detector to cause the memory to store cyclic loop image data in the form of the incoming waveform data as y-axis data and the ramp sweep signal as x-axis data, and employ a machine learning system to receive the cyclic loop image data and classify the data burst. A method of classifying signals includes generating a ramp sweep signal from incoming waveform data, locating a data burst in the incoming waveform data, storing cyclic loop image data for the data burst in the form of the incoming waveform data as Y-axis data and the ramp sweep signal as X-axis data, and using a machine learning system to receive the cyclic loop image and classify the data burst.

    JITTER INSERTION SYSTEM FOR WAVEFORM GENERATION
    42.
    发明申请
    JITTER INSERTION SYSTEM FOR WAVEFORM GENERATION 审中-公开

    公开(公告)号：US20200249712A1

    公开(公告)日：2020-08-06

    申请号：US16677391

    申请日：2019-11-07

    Applicant: Tektronix, Inc.

    Inventor： John J. Pickerd

    IPC: G06F1/02 ,  G06F1/03

    Abstract: A test and measurement instrument for generating an analog waveform, including an interpolator configured to receive a digital signal and output interpolated samples of the digital signal at a sample rate, a filter modulation controller configured to output first filter coefficients at a first time and second filter coefficients at a second time, a convolver configured to generate a convolved signal by convolving the interpolated samples of the digital signal and the first filter coefficients and convolving the interpolated samples of the digital signal and the second filter coefficients; and a digital-to-analog converter configured to convert the convolved signal to an analog signal based on a fixed, constant clock signal.

    BAND OVERLAY SEPARATOR
    47.
    发明申请
    BAND OVERLAY SEPARATOR 有权
    带覆盖分隔器

    公开(公告)号：US20160291056A1

    公开(公告)日：2016-10-06

    申请号：US14674344

    申请日：2015-03-31

    Applicant: Tektronix, Inc.

    Inventor： John J. Pickerd ,  Kan Tan

    IPC: G01R13/02 ,  G01R13/22

    CPC classification number: G01R13/0218 ,  G01R13/0272 ,  G01R13/225 ,  H03M1/1052 ,  H03M1/1215

    Abstract: A test and measurement instrument including a splitter configured to split an input signal into at least two split signals, at least two harmonic mixers configured to mix an associated split signal with an associated harmonic signal to generate an associated mixed signal, at least two digitizers configured to digitize the associated mixed signal, at least two MIMO polyphase filter arrays configured to filter the associated digitized mixed signal of an associated digitizer of the at least two digitizers, at least two pairs of band separation filters configured to receive the associated digitized mixed signals from each of the MIMO polyphase filter arrays and output a low band of the input signal and a high band of the input signal based on a time different between the at least two digitizers and a phase drift of a local oscillator, and a combiner configured to combine the low band of the input signal and the high band of the input signal to form a reconstructed input signal.

    Abstract translation: 一种包括分配器的测试和测量仪器，其被配置为将输入信号分成至少两个分离信号，至少两个谐波混合器被配置为将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，至少两个数字化器被配置 至少两个MIMO多相滤波器阵列被配置为对所述至少两个数字化仪的相关联的数字转换器的相关联的数字化混合信号进行数字化，至少两对频带分离滤波器被配置成从相关联的数字化混合信号中接收相关联的数字化混合信号 每个MIMO多相滤波器阵列，并且基于所述至少两个数字转换器之间的时间和本地振荡器的相位漂移而输出所述输入信号的低频带和所述输入信号的高频带，以及被配置为组合的组合器 输入信号的低频带和输入信号的高频带，以形成重构的输入信号。

    TEST AND MEASUREMENT INSTRUMENT INCLUDING ASYNCHRONOUS TIME-INTERLEAVED DIGITIZER USING HARMONIC MIXING
    48.
    发明申请
    TEST AND MEASUREMENT INSTRUMENT INCLUDING ASYNCHRONOUS TIME-INTERLEAVED DIGITIZER USING HARMONIC MIXING 有权
    测试和测量仪器包括使用谐波混合的异步时间互换数字

    公开(公告)号：US20140354344A1

    公开(公告)日：2014-12-04

    申请号：US14229307

    申请日：2014-03-28

    Applicant: Tektronix, Inc.

    Inventor： Daniel G. Knierim ,  John J. Pickerd

    IPC: H03M1/12 ,  G01R23/14

    CPC classification number: H03M1/121 ,  G01R13/0272 ,  G01R23/14 ,  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; 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。

    DEVICE AND METHOD TO PREVENT INTER-SYSTEM INTERFERENCE
    49.
    发明申请
    DEVICE AND METHOD TO PREVENT INTER-SYSTEM INTERFERENCE 有权
    用于防止系统间干扰的装置和方法

    公开(公告)号：US20140300371A1

    公开(公告)日：2014-10-09

    申请号：US14079801

    申请日：2013-11-14

    Applicant: Tektronix, Inc.

    Inventor： John J. Pickerd

    IPC: G01R13/02

    CPC classification number: G01R13/02 ,  F02P17/00 ,  G01N27/42 ,  G01N31/02 ,  G01R13/0236 ,  G01R27/30 ,  G01R31/24 ,  G01R31/2635 ,  G01R31/44

    Abstract: A method of preventing inter-system interference while acquiring waveforms in a test and measurement instrument with variation in a device under test system S-parameters. The method includes receiving a waveform from a device under test at the test and measurement instrument, digitizing the waveform, identifying portions of the digitized waveform with different S-parameter characteristics, separating the identified portions of the digitized waveform into different waveforms, and displaying the different waveforms to a user.

    Abstract translation: 一种在测试系统S参数变化的测试和测量仪器中获取波形时防止系统间干扰的方法。 该方法包括在测试和测量仪器处接收来自被测设备的波形，数字化波形，用不同的S参数特征识别数字化波形的部分，将所识别出的数字化波形部分分成不同波形，并显示 不同的波形给用户。

    SERIAL DATA LINK MEASUREMENT AND SIMULATION SYSTEM
    50.
    发明申请
    SERIAL DATA LINK MEASUREMENT AND SIMULATION SYSTEM 审中-公开
    串行数据链路测量和仿真系统

    公开(公告)号：US20130332101A1

    公开(公告)日：2013-12-12

    申请号：US13758614

    申请日：2013-02-04

    Applicant: Tektronix, Inc.

    Inventor： John J. Pickerd ,  Kan Tan ,  Kalev Sepp ,  Sarah R. Boen

    IPC: G06F11/30

    CPC classification number: G06F11/30 ,  G06F17/5022 ,  H04B3/46 ,  H04L25/03057

    Abstract: A serial data link measurement and simulation system for use on a test and measurement instrument presents on a display device a main menu having elements representing a measurement circuit, a simulation circuit and a transmitter. The main menu includes processing flow lines pointing from the measurement circuit to the transmitter and from the transmitter to the simulation circuit. The main menu includes a source input to the measurement circuit and one or more test points from which waveforms may be obtained. The simulation circuit includes a receiver. The measurement and simulation circuits are defined by a user, and the transmitter is common to both circuits so all aspects of the serial data link system are tied together.

    Abstract translation: 用于测试和测量仪器的串行数据链路测量和仿真系统在显示设备上呈现具有表示测量电路，仿真电路和发射机的元件的主菜单。 主菜单包括处理从测量电路指向发射器和从发射机到仿真电路的流线。 主菜单包括测量电路的源输入和可获得波形的一个或多个测试点。 仿真电路包括接收器。 测量和仿真电路由用户定义，并且发射机对于两个电路是共同的，因此串行数据链路系统的所有方面都被捆绑在一起。

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