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61. 发明申请

US20170353248A1 ELECTRO-OPTIC SENSOR SYSTEM 审中-公开
公开(公告)号：US20170353248A1
公开(公告)日：2017-12-07
申请号：US15394670
申请日：2016-12-29
申请人： TEKTRONIX, INC.
发明人： Richard A. Booman , Michael J. Mende , Daniel G. Knierim
IPC分类号： H04B10/80 , H04B10/532
CPC分类号： H04B10/801 , G01R15/241 , G01R29/0885 , G01R31/308 , H04B10/532
摘要： An electro-optical sensor comprises an optical input configured to receive an optical carrier via an upstream fiber. The electro-optical sensor also includes an optical modulator configured to modulate an electrical signal onto the optical carrier to create an optical signal. The electro-optical sensor further includes an optical output configured to transmit the optical signal via a downstream fiber. The electro-optical sensor employs a variation output configured to transmit variation data indicating variation in the received optical carrier to support compensation for corresponding variation in the optical signal.

62. 发明申请

US20170077939A1 TEST AND MEASUREMENT INSTRUMENT INCLUDING ASYNCHRONOUS TIME-INTERLEAVED DIGITIZER USING HARMONIC MIXING AND A LINEAR TIME-PERIODIC FILTER 有权
标题翻译：测试和测量仪器包括使用谐波混合和线性时间周期滤波器的异步时间互斥数字化仪
公开(公告)号：US20170077939A1
公开(公告)日：2017-03-16
申请号：US15347600
申请日：2016-11-09
申请人： Tektronix, Inc.
发明人： Daniel G. Knierim
IPC分类号： H03M1/12
CPC分类号： H03M1/121 , G01R13/0236 , G01R13/0272 , G01R19/2506 , H03M1/1215
摘要： 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.
摘要翻译：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。

63. 发明授权

US09568503B2 Calibration for test and measurement instrument including asynchronous time-interleaved digitizer using harmonic mixing 有权
标题翻译：用于测试和测量仪器的校准，包括使用谐波混合的异步时间交错数字化仪
公开(公告)号：US09568503B2
公开(公告)日：2017-02-14
申请号：US14971727
申请日：2015-12-16
申请人： Tektronix, Inc.
发明人： Daniel G. Knierim , Barton T. Hickman
IPC分类号： G01R23/14 , G01R13/02 , H03M1/12
CPC分类号： G01R13/0272 , H03M1/06 , H03M1/1009 , H03M1/121
摘要： A test and measurement instrument includes a coefficient storage facility coupled to a programmable filter. The coefficient storage facility is configured to store at least two pre-determined filter coefficient sets, and configured to pass a selected one of the at least two pre-determined filter coefficient sets to the filter based on a measurement derived using a compensation oscillator. The measurement may include clock delay and clock skew. In some examples the test and measurement instrument may additionally adjust clock delay and/or clock skew in addition to selecting appropriate filter coefficients.
摘要翻译：测试和测量仪器包括耦合到可编程滤波器的系数存储设备。系数存储设施被配置为存储至少两个预定的滤波器系数组，并且被配置为基于使用补偿振荡器导出的测量将所选择的至少两个预定滤波器系数组中的一个传送到滤波器。测量可能包括时钟延迟和时钟偏移。在一些示例中，除了选择适当的滤波器系数之外，测试和测量仪器还可以另外调节时钟延迟和/或时钟偏移。

64. 发明授权

US09432042B2 Test and measurement instrument including asynchronous time-interleaved digitizer using harmonic mixing 有权
公开(公告)号：US09432042B2
公开(公告)日：2016-08-30
申请号：US14229307
申请日：2014-03-28
申请人： Tektronix, Inc.
发明人： Daniel G. Knierim , John J. Pickerd
IPC分类号： H03M1/12 , G01R23/14 , G01R13/02
CPC分类号： H03M1/121 , G01R13/0272 , G01R23/14 , H03M1/1215
摘要： 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.

65. 发明申请

US20160216295A1 CALIBRATION FOR TEST AND MEASUREMENT INSTRUMENT INCLUDING ASYNCHRONOUS TIME-INTERLEAVED DIGITIZER USING HARMONIC MIXING 有权
标题翻译：用于测试和测量仪器的校准，包括使用谐波混合的异步时间互换数字化仪
公开(公告)号：US20160216295A1
公开(公告)日：2016-07-28
申请号：US14971727
申请日：2015-12-16
申请人： Tektronix, Inc.
发明人： Daniel G. Knierim , Barton T. Hickman
IPC分类号： G01R13/02 , H03M1/12
CPC分类号： G01R13/0272 , H03M1/06 , H03M1/1009 , H03M1/121
摘要： A test and measurement instrument includes a coefficient storage facility coupled to a programmable filter. The coefficient storage facility is configured to store at least two pre-determined filter coefficient sets, and configured to pass a selected one of the at least two pre-determined filter coefficient sets to the filter based on a measurement derived using a compensation oscillator. The measurement may include clock delay and clock skew. In some examples the test and measurement instrument may additionally adjust clock delay and/or clock skew in addition to selecting appropriate filter coefficients.
摘要翻译：测试和测量仪器包括耦合到可编程滤波器的系数存储设备。系数存储设施被配置为存储至少两个预定的滤波器系数组，并且被配置为基于使用补偿振荡器导出的测量将所选择的至少两个预定滤波器系数组中的一个传送到滤波器。测量可能包括时钟延迟和时钟偏移。在一些示例中，除了选择适当的滤波器系数之外，测试和测量仪器还可以另外调节时钟延迟和/或时钟偏移。

66. 发明授权

US08723530B2 Signal acquisition system having reduced probe loading of a device under test 有权
标题翻译：信号采集系统具有减少被测设备的探头负载
公开(公告)号：US08723530B2
公开(公告)日：2014-05-13
申请号：US13854566
申请日：2013-04-01
申请人： Tektronix, Inc.
发明人： Josiah A. Bartlett , Ira G. Pollock , Daniel G. Knierim , Lester L. Larson , Scott R. Jansen , Kenneth P. Dobyns , Michael Duane Stevens
IPC分类号： G01R35/00
CPC分类号： G01R35/005 , G01R1/06766
摘要： A signal acquisition system has a signal acquisition probe having probe tip circuitry coupled to a resistive center conductor signal cable. The resistive center conductor signal cable of the signal acquisition probe is coupled to a compensation system in a signal processing instrument via an input node and input circuitry in the signal processing instrument. The signal acquisition probe and the signal processing instrument have mismatched time constants at the input node with the compensation system providing pole-zero pairs for maintaining flatness over the signal acquisition system frequency bandwidth.
摘要翻译：信号采集系统具有信号采集探针，其具有耦合到电阻中心导体信号电缆的探针尖端电路。信号采集探头的电阻中心导体信号电缆通过输入节点和信号处理仪器中的输入电路耦合到信号处理仪器中的补偿系统。信号采集探头和信号处理仪器在输入节点处具有不匹配的时间常数，补偿系统提供极零对，以保持信号采集系统频率带宽的平坦度。

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