公开(公告)号：US10783223B2

公开(公告)日：2020-09-22

申请号：US15782496

申请日：2017-10-12

申请人： PACESETTER, INC.

发明人： Dean Andersen

IPC分类号： A61N1/372 ,  A61B5/04 ,  A61B5/00 ,  A61B5/0464 ,  A61N1/37 ,  A61N1/39 ,  G06F19/00 ,  G06F1/3203 ,  A61N1/02 ,  G16H40/63 ,  G01R23/167

摘要： An implantable medical device and method are provided for comprising a sensing circuit that is configured to sense and output physiologic data indicative of a physiologic characteristic of a patient and at least one processor. A memory is coupled to the at least one processor. The memory stores program instructions and processed data. The program instructions are executable by the at least one processor to execute general operational functions within the IMD. A hybrid signal processing (HSP) circuit is coupled to the at least one processor and the sensing circuit. The HSP circuit is adapted to filter the physiologic data. The HSP circuit comprises a plurality of first order filters, a plurality of higher order filters, and a switch matrix that is configured to interconnect a combination of the first and higher order filters to form a hybrid digital filter having a select composite frequency response that utilizes no more than a select power demand.

公开(公告)号：US10727666B2

公开(公告)日：2020-07-28

申请号：US15574024

申请日：2016-05-12

申请人： General Electric Technology GmbH

发明人： Hengxu Ha ,  Sankara Subramanian Sri Gopala Krishna Murthi

IPC分类号： H02H7/26 ,  G01R31/08 ,  H02H1/00 ,  G01R23/167 ,  G01R31/11 ,  H02H3/28 ,  H02H3/44

摘要： A DC protection scheme for protecting a DC power transmission medium within a DC electrical power network. The scheme includes a protection device coupled to a DC power transmission medium, being operable to protect the power transmission medium from a fault; an apparatus to measure at least one electrical property of the power transmission medium; and a controller programmed to determine the direction of the electrical fault; determine whether the electrical fault is an internal or external fault; and operate the protection device to protect the DC power transmission medium if the determination of the direction of the electrical fault and/or the determination of whether the electrical fault is an internal or external fault meet a predefined criterion.

公开(公告)号：US10660575B2

公开(公告)日：2020-05-26

申请号：US15031229

申请日：2014-11-26

申请人： ZENGAR INSTITUTE INC.

发明人： Kenneth MacCallum

IPC分类号： A61B5/00 ,  A61B5/0428 ,  A61B5/04 ,  G01R19/00 ,  H03F1/38 ,  G01R23/165 ,  G01R23/167 ,  A61B5/0482 ,  A61B5/0488

摘要： A sensor circuit usable with capacitive sensors in an electrical potential sensing network is provided. The sensor circuit provides bias current while maintaining a high input impedance for signals in a frequency band of interest by positive feedback of a filtered measurement through a finite impedance. The sensor circuits are suited for technologies such as, but not limited to electroencephalography (EEG), electromyography (EMG) and electrocardiograms (ECG). A neurofeedback system utilizing the capacitive conduction sensor is also described.

公开(公告)号：US20180017604A1

公开(公告)日：2018-01-18

申请号：US15549617

申请日：2016-02-12

申请人： THE UNIVERSITY OF SHEFFIELD

发明人： Edward John DAW ,  Tega Boro EDO

IPC分类号： G01R23/167 ,  G01R31/34 ,  G06F17/14

CPC分类号： G01R23/167 ,  G01R31/343 ,  G06F17/141

摘要： A method for recursively estimating at least one parameter of a first oscillating component represented by one or more sampled noisy input signal waveforms, the method comprising, recursively generating from the one or more sampled noisy input signals an estimate of a Z-transform component corresponding to the first oscillating component, forming, from the estimated Z-transform component, one or more signals providing an indication of one or more of a frequency and an amplitude of the Z-transform component; and estimating, from the one or more signals, one or more of a frequency, a relative phase and an amplitude parameter of the first oscillating component.

公开(公告)号：US20170336449A1

公开(公告)日：2017-11-23

申请号：US15390254

申请日：2016-12-23

申请人： Resonant Inc.

发明人： Richard N. Silver

IPC分类号： G01R23/167 ,  H03H9/64

CPC分类号： G01R23/167

摘要： A method for electronic circuit spectral analysis includes receiving a list of parts for an electronic circuit, determining a part admittance matrix with algebraic nodes for each part, and determining a circuit admittance matrix for exterior nodes, interior nodes, and algebraic nodes based on the part admittance matrices. The method also includes reducing interior nodes of the circuit admittance matrix for exterior nodes, interior nodes, and algebraic nodes to determine a circuit admittance matrix for exterior nodes and algebraic nodes, reducing algebraic nodes to transform the circuit admittance matrix for exterior nodes and algebraic nodes into a Green's Function, evaluating the Green's Function to determine a circuit exterior node admittance matrix over a frequency spectrum, and transforming the circuit exterior node admittance matrix to a circuit scattering matrix over the frequency spectrum.

公开(公告)号：US09490944B2

公开(公告)日：2016-11-08

申请号：US13651259

申请日：2012-10-12

申请人： Innoventure L.P.

发明人： David K Nienaber

IPC分类号： H04L25/06 ,  H04L25/10 ,  H04L1/20 ,  H04B1/06 ,  G01R23/167 ,  H03D1/00 ,  H04L1/08 ,  H04B1/04

CPC分类号： H04L1/206 ,  G01R23/167 ,  H03D1/00 ,  H03D2200/006 ,  H03D2200/0062 ,  H04B1/0021 ,  H04B1/06 ,  H04B2001/0491 ,  H04L1/08

摘要： Values representative of modulation signal components are extracted from a modulated signal. The modulated signal contains a modulation signal. A local clock signal is developed which correlates in time to the modulated signal and has a plurality of non-overlapping phase sectors per cycle. The modulated signal is accumulated into an accumulated value, separately for at least one phase sector of one cycle of the local clock signal. Each accumulated value is representative of a modulation signal component. The modulated signal accumulated is of an amount representative of the mathematical integral of the modulated signal during each phase sector of the local clock over which the modulated signal is accumulated.

摘要翻译： 从调制信号中提取表示调制信号分量的值。 调制信号包含调制信号。 开发本地时钟信号，其在时间上与调制信号相关，并且每个周期具有多个非重叠相位扇区。 对于本地时钟信号的一个周期的至少一个相位扇区，调制信号被累积到累积值中。 每个累积值表示调制信号分量。 累积的调制信号是在调制信号被累加的本地时钟的每个相位扇区期间表示调制信号的数学积分的量。

公开(公告)号：US20160224757A1

公开(公告)日：2016-08-04

申请号：US15029301

申请日：2014-10-13

申请人： KAOSKEY PTY LIMITED

发明人： Dmitri Melkonyan

IPC分类号： G06F19/00 ,  G06F17/11 ,  G01R23/167

CPC分类号： G16H50/50 ,  A61B5/04 ,  A61B5/7246 ,  A61B5/7253 ,  A61B5/7264 ,  G01R23/167 ,  G06F17/11 ,  G06F17/14 ,  G06F19/00 ,  G06K9/0055

摘要： A method of signal processing and, in particular, a method of decomposing non-stationary signals representative of a physiological phenomenon into functional components, and to estimate parameters characterizing each of those functional components. The method utilises means for estimating dynamic and baseline trends in the time course of the signal, means for dividing the non-stationary signal into the segments over which the functional components are developed and means for compensating for overlap from QGK matched to preceding functional components to form an ECK. The compensation comprises means for transforming the ECK to a frequency domain, means for estimating the weight and dispersion parameters of the QGK, and validation of the parameter reliability, means for estimating the onset time of the QGK, means for expansion of the model of the non-stationary signal after each cycle of recursion, means for removal of unfavourable QGKs and rearrangement of remaining QGKs and means for creating partial models of the non-stationary signal with parameters belonging to predefined classes.

摘要翻译： 一种信号处理的方法，特别是将代表生理现象的非平稳信号分解为功能组件的方法，以及估计表征每个功能组件的参数。 该方法利用用于估计信号时间过程中的动态和基线趋势的装置，用于将非平稳信号划分成功能组件所在的段的装置，以及用于补偿与先前功能组件匹配的QGK的重叠的装置 形成ECK。 该补偿包括用于将ECK转换到频域的装置，用于估计QGK的权重和色散参数的装置，以及参数可靠性的验证，用于估计QGK的起始时间的手段，用于扩展QGK的模型的装置 每个循环递归之后的非平稳信号，用于去除不利的QGK和重新排列剩余的QGK的装置以及用于创建具有属于预定类别的参数的非平稳信号的部分模型的装置。

公开(公告)号：US09128133B2

公开(公告)日：2015-09-08

申请号：US13873468

申请日：2013-04-30

申请人： GAMESA INNOVATION & TECHNOLOGY, S.L.

发明人： Francisco Jimenez Buendia

IPC分类号： G01R23/167 ,  F03D9/00 ,  G01R23/00

CPC分类号： G01R23/167 ,  F03D9/25 ,  F03D9/255 ,  G01R23/00 ,  Y02E10/725

摘要： Method and module for measuring the rate of change of frequency of a waveform related to a converter unit of a wind turbine generator, comprising: measuring an instantaneous value of said rate of change of frequency of the waveform, calculating a first filtered value of said rate of change of frequency, said first filtered value having good accuracy but low time response, and calculating a second filtered value of said rate of change of frequency said second filtered value having a good time response but low accuracy, comparing said first and second filtered values and selecting that an output value of said measured rate of change is based on said first or second filtered values depending on said comparison.

摘要翻译： 用于测量与风力涡轮发电机的转换器单元相关的波形的频率变化率的方法和模块，包括：测量所述波形的频率变化率的瞬时值，计算所述速率的第一滤波值 所述第一滤波值具有良好的精度但时间响应低，并且计算所述第二滤波值的第二滤波值，所述第二滤波值具有良好的时间响应但精度低，将所述第一和第二滤波值 并且根据所述比较选择所述测量的变化率的输出值是基于所述第一或第二滤波值。

公开(公告)号：US07164261B2

公开(公告)日：2007-01-16

申请号：US10824896

申请日：2004-04-15

申请人： Shuichi Hashimoto ,  Ryuki Kubohara ,  Tatsuhiko Kosugi ,  Takeyori Hara ,  Yoshiyuki Kagami

发明人： Shuichi Hashimoto ,  Ryuki Kubohara ,  Tatsuhiko Kosugi ,  Takeyori Hara ,  Yoshiyuki Kagami

IPC分类号： G01R23/167 ,  G01R23/00

CPC分类号： G11B21/10

摘要： A resonance-frequency measuring method is used for measuring a resonance frequency of an information recording/reproducing device reproducing information recorded on a medium by driving a mechanism unit. The resonance-frequency measuring method includes the measuring step of applying sine-wave oscillations at different frequencies one by one to the mechanism unit, and counting the number of times information reproduced upon application of each of the sine-wave oscillations differs from information indicating an aimed location, and the resonance-frequency determining step of determining the resonance frequency according to the number of times counted in the measuring step.

摘要翻译： 谐振频率测量方法用于通过驱动机构单元来测量记录在介质上的信息记录/再现装置再现信息的共振频率。 谐振频率测量方法包括测量步骤，将不同频率的正弦波振荡逐个地施加到机构单元，并且对施加每个正弦波振荡时再现的信息的计数不同于指示 以及谐振频率确定步骤，用于根据在测量步骤中计数的次数来确定谐振频率。

公开(公告)号：US07116093B2

公开(公告)日：2006-10-03

申请号：US10768470

申请日：2004-01-30

申请人： Darrell J. Johnson ,  John C. McCosh

发明人： Darrell J. Johnson ,  John C. McCosh

IPC分类号： G01R23/167 ,  G01R19/00

CPC分类号： H04B3/46 ,  H04M3/22

摘要： The tone generator uses a highly accurate frequency signal to generate an accurate and stable tone signal. A cadence pattern may be used to output the tone signal onto a test cable in an easily distinguishable pattern. The tone signal may be selectively output at an in-band band frequency or an out-band frequency. A corresponding tone probe may be used to detect the tone signal. The tone probe uses a high-Q bandpass filter to reject all but the expected frequency of the tone signal. The signal passing the bandpass filter is proportional to the detected tone signal. The tone probe generates an audio signal unrelated to the frequency of the tone signal. The audio signal is modulated by the signal from the bandpass filter, and then broadcast through a speaker. Accordingly, the tone probe provides an audible sound proportional to the strength of the tone signal, but is unrelated in frequency.