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1. 发明授权

US06296093B1 Vibration-damped machine and control method therefor 失效
标题翻译：减振机及其控制方法
公开(公告)号：US06296093B1
公开(公告)日：2001-10-02
申请号：US09188654
申请日：1998-11-09
申请人： Mark A. Norris , Andrew D. Meyers , Donald L. Margolis
发明人： Mark A. Norris , Andrew D. Meyers , Donald L. Margolis
IPC分类号： F16F710
CPC分类号： F16F7/1005 , B23Q11/0032 , B25J19/0091 , G05B19/404 , G05D19/02 , Y10T409/304312
摘要： A vibration-damped machine and method including beam being capable of gross movements in space relative to a stationary frame, means including a motor for causing the beam's gross movements; the gross movements tending to induce vibration into the beam, sensors for providing a signal representative of the induced beam vibration, an linear-acting inertial actuator mounted to the beam, and control means for receiving the signal and generating an output signal to actively drive the linear-acting inertial actuator at the appropriate phase, frequency and magnitude to damp induced beam vibrations. Embodiments of the vibration-damped machine are illustrated for a gantry robot, a horizontal machining center, an adhesive dispenser and a pivoting robot. The linear-acting inertial actuator is preferably controlled according to an inertial damping control method where the actuator is forced to behave as a damper attached to ground.
摘要翻译：一种振动阻尼机器和方法，包括能够相对于静止框架在空间中大体移动的梁，包括用于引起梁的粗大运动的电机的装置; 趋向于引起振动进入梁的总运动，用于提供表示感应波束振动的信号的传感器，安装到波束的线性作用惯性致动器以及用于接收信号并产生输出信号的主动驱动线性作用惯性致动器在适当的相位，频率和幅度以减弱感应的波束振动。振动阻尼机器的实施例示出了龙门机器人，卧式加工中心，粘合剂分配器和枢转机器人。线性惯性致动器优选地根据惯性阻尼控制方法来控制，其中致动器被迫作为附接到地面的阻尼器。

2. 发明授权

US10487823B2 Fluid flow normalizer 有权
公开(公告)号：US10487823B2
公开(公告)日：2019-11-26
申请号：US14772009
申请日：2014-03-13
申请人： LORD Corporation , Donald L. Margolis , Mark A. Norris , Askari Badre-Alam , Jonathan Owens
发明人： Donald L. Margolis , Mark A. Norris , Askari Badre-Alam , Jonathan Owens
IPC分类号： F04B49/08 , F04B11/00 , F04B49/06 , E21B21/00 , E21B21/08 , F04B19/22 , F04B43/02 , F04B53/14 , F04B53/16
CPC分类号： F04B49/08 , E21B21/00 , E21B21/08 , F04B11/00 , F04B19/22 , F04B43/02 , F04B49/065 , F04B53/14 , F04B53/16
摘要： A pumping system is provided. The pumping system includes an output conduit, a first sensor, a second second sensor, a feedforward active controller, and a fluid flow normalizer (FFN). The output conduit is associated with an output of a positive displacement pump. The first sensor is configured to measure a fluid flow characteristic (FFC) within the output conduit. The second sensor is configured to measure a phase of the positive displacement pump. The feedforward active controller is configured to receive information related to the FFC, receive information related to the phase of the positive displacement pump, and determine an FFC variability value. The first fluid flow normalizer (FFN) is configured to at least one of add fluid to the output of the positive displacement pump and remove fluid from the output of the positive displacement pump in response to a signal from the feedforward active controller.

3. 发明授权

US07194292B2 Simultaneous signal attenuation measurements utilizing frequency orthogonal random codes 有权
标题翻译：使用频率正交随机码的同时信号衰减测量
公开(公告)号：US07194292B2
公开(公告)日：2007-03-20
申请号：US10786938
申请日：2004-02-25
申请人： Mark A. Norris
发明人： Mark A. Norris
IPC分类号： A61B5/00
CPC分类号： A61B5/14551
摘要： A method for use in operating a signal attenuation measurement device used to obtain a physiological parameter of a patient and an apparatus for use in determining at least one physiological parameter relating to a patient from at least first and second signals transmitted to a patient tissue site and attenuated thereby are provided. In accordance with the method and apparatus of the present invention, the first and second signals are multiplexed using frequency orthogonal code division multiplexed excitation waveforms. This allows for both relatively good source separation of the signals and whitening of external noise.
摘要翻译：一种用于操作信号衰减测量装置的方法，所述信号衰减测量装置用于获得患者的生理参数，以及用于从至少第一和第二信号传输到患者组织部位确定与患者有关的至少一个生理参数的装置，以及因此被提供。根据本发明的方法和装置，使用频率正交码分多路复用激励波形对第一和第二信号进行复用。这允许相对较好的信号源分离和外部噪声的白化。

4. 发明授权

US06720734B2 Oximeter with nulled op-amp current feedback 有权
标题翻译：具有零运算放大器电流反馈的血氧仪
公开(公告)号：US06720734B2
公开(公告)日：2004-04-13
申请号：US10215935
申请日：2002-08-08
申请人： Mark A. Norris
发明人： Mark A. Norris
IPC分类号： H05B3702
CPC分类号： A61B5/14551 , A61B5/7225
摘要： A method of producing a diode drive current in an oximeter includes sensing at least a part of a current passing through the diode and converting the sensed current to a sensed voltage, inputting the sensed voltage to a feedback amplifier for stabilizing the current passing through the diode, and eliminating an offset voltage across inputs of the feedback amplifier. A pulse oximeter includes a diode for emitting light flashes, a feedback amplifier having inputs, a feedback capacitor, and an output, the feedback amplifier stabilizing a current passing through the diode, a nulling amplifier having inputs, a nulling capacitor, and an output, the nulling amplifier charging and discharging the feedback capacitor until the inputs of the feedback amplifier are at a same voltage. The operation may include synchronizing an elimination of input offset voltages of the feedback and nulling amplifiers with on or off state of diode current.
摘要翻译：在血氧计中产生二极管驱动电流的方法包括：感测通过二极管的电流的至少一部分，并将感测到的电流转换成检测到的电压，将检测到的电压输入到反馈放大器，以稳定通过二极管的电流并且消除反馈放大器的输入两端的偏移电压。脉冲血氧计包括用于发出闪光的二极管，具有输入的反馈放大器，反馈电容器和输出，反馈放大器稳定通过二极管的电流，具有输入的零位放大器，零电容器和输出，归零放大器对反馈电容器进行充电和放电，直到反馈放大器的输入端处于相同的电压。该操作可以包括将反馈和零归零放大器的输入偏移电压的消除同步到二极管电流的导通或截止状态。

5. 发明授权

US06778923B2 Reduced cross talk pulse oximeter 有权
标题翻译：减少串扰脉搏血氧仪
公开(公告)号：US06778923B2
公开(公告)日：2004-08-17
申请号：US10147452
申请日：2002-05-15
申请人： Mark A. Norris , D. Alan Hanna
发明人： Mark A. Norris , D. Alan Hanna
IPC分类号： G01R1300
CPC分类号： A61B5/14551 , A61B5/7228
摘要： A system and method of reducing cross talk in pulse oximetry signals that are attenuated by a patient tissue site are provided. In one embodiment, Red and IR LEDs of a pulse oximeter are separately excited (1010) and the respective Red and IR data vectors output by the detector are measured (1020). The Red and IR data vectors are normalized (1030). Red to IR and IR to Red cross talk vectors are computed (1040). Red and IR demodulation vectors are obtained by subtracting (1050) the respective Red and IR cross talk vectors from the respective normalized Red and IR data vectors. The demodulation vectors are normalized (1060), scaled (1070), and the magnitudes of the Red and IR signal components are obtained by computing (1080) the dot product of the composite signal data vector with the normalized and scaled Red demodulation and IR demodulation vectors, respectively.
摘要翻译：提供了减少由患者组织部位衰减的脉搏血氧饱和度信号中的串扰的系统和方法。在一个实施例中，脉冲血氧计的红色和红外LED单独激励（1010），并且测量由检测器输出的相应的红色和红外数据矢量（1020）。红色和红外数据矢量被归一化（1030）。计算红色到红外和红外到红色串扰向量（1040）。通过从相应的归一化红色和IR数据向量中减去（1050）各个红色和IR串扰向量来获得红色和红外解调矢量。解调矢量被归一化（1060），缩放（1070），并且通过计算（1080）复合信号数据矢量与归一化和缩放的红色解调和IR解调的点积来获得红色和红外信号分量的大小矢量。

6. 发明授权

US06707257B2 Ferrite stabilized LED drive 有权
标题翻译：铁氧体稳定LED驱动
公开(公告)号：US06707257B2
公开(公告)日：2004-03-16
申请号：US10215908
申请日：2002-08-08
申请人： Mark A. Norris
发明人： Mark A. Norris
IPC分类号： H05B3702
CPC分类号： A61B5/14552
摘要： An oximeter diode-driving device has a diode, a transistor operative to controllably connect current to the diode, a current sensing resistor that senses at least part of the current, a feedback amplifier operative to control the connecting of current by the transistor according to the current sensed by the current sensing resistor, and an inductor disposed in series with the current sensing resistor. A method of driving a current through the diode of an oximeter includes driving a current through the diode by connecting the current to the diode, controlling the connecting using a feedback type amplifier, the feedback type amplifier having a current source that uses a current-limiting resistor, and adding phase lead to a current passing through the current-limiting resistor.
摘要翻译：血氧饱和度二极管驱动装置具有二极管，可操作地将电流连接到二极管的晶体管，感测电流的至少一部分的电流感测电阻器，用于控制根据晶体管的电流连接的反馈放大器由电流感测电阻器感测的电流，以及与电流感测电阻器串联布置的电感器。驱动通过血氧计的二极管的电流的方法包括通过将电流连接到二极管来驱动通过二极管的电流，使用反馈型放大器控制连接，反馈型放大器具有使用电流限制的电流源电阻和相加引起电流通过限流电阻。

7. 发明授权

US06505133B1 Simultaneous signal attenuation measurements utilizing code division multiplexing 有权
标题翻译：使用码分复用的同时信号衰减测量
公开(公告)号：US06505133B1
公开(公告)日：2003-01-07
申请号：US09712864
申请日：2000-11-15
申请人： D. Alan Hanna , Mark A. Norris
发明人： D. Alan Hanna , Mark A. Norris
IPC分类号： G06F1900
CPC分类号： A61B5/14551 , A61B5/7228
摘要： A pulse oximeter (100) includes two or more light sources (102) for transmitting optical signals through an appendage (103) of patient. The sources (102) are operated to transmit code division multiplexed (CDM) signals. That is, the sources (102) are driven by drives (104) in response to signals from a digital processing unit (116) such that the sources (102) are modulated using different code sequences. The code sequences are preferably non-periodic and may be orthogonal to one another. The use of such CDM signals provides certain advantages related to noise reduction.
摘要翻译：脉搏血氧计（100）包括用于通过患者的附属物（103）传输光信号的两个或更多个光源（102）。源（102）被操作以发送码分多路复用（CDM）信号。也就是说，源（102）响应于来自数字处理单元（116）的信号由驱动器（104）驱动，使得使用不同的代码序列调制源（102）。代码序列优选地是非周期性的并且可以彼此正交。使用这种CDM信号提供了与减少噪声有关的某些优点。

8. 发明授权

US06397092B1 Oversampling pulse oximeter 有权
公开(公告)号：US06397092B1
公开(公告)日：2002-05-28
申请号：US09465742
申请日：1999-12-17
申请人： Mark A. Norris , D. Alan Hanna
发明人： Mark A. Norris , D. Alan Hanna
IPC分类号： A61B500
CPC分类号： A61B5/14551
摘要： An oversampling pulse oximeter includes an analog to digital converter with a sampling rate sufficient to take multiple samples per source cycle. In one embodiment, a pulse oximeter (100) includes two mor more light sources (102) driven by light source drives (104) in response to drive signals from a digital signal processing unit (116). The source drives (104) may drive the sources (102) to produce a frequency division multiplex signal. The optical signals transmitted by the light sources (102) are transmitted through a patient's appendage (103) and impinge on a detector (106). The detector (106) provides an analog current signal representative of the received optical signals. An amplifier circuit (110) converts the analog current signal to an analog voltage signal in addition to performing a number of other functions. The amplifier circuit (110) outputs an analog voltage signal which is representative of the optical signals from the sources (102). This analog voltage signal is received by a fast A/D converter (112) which samples the analog voltage signal to generate a digital voltage signal which can be processed by the digital signal processing unit (116). The fast A/D converter (112) operates at a rate sufficient to take multiple samples per source cycle and may have a sampling frequency, for example, of over 41 kHz. The digital signal processing unit (116) implements software for averaging the samples over a source cycle for improved measurement consistency, improved signal to noise ratio and reduced A/D converter word length.

9. 发明授权

US07062307B2 Oversampling pulse oximeter 有权
标题翻译：超采样脉搏血氧仪
公开(公告)号：US07062307B2
公开(公告)日：2006-06-13
申请号：US10864080
申请日：2004-06-08
申请人： Mark A. Norris , D. Alan Hanna
发明人： Mark A. Norris , D. Alan Hanna
IPC分类号： A61B5/00
CPC分类号： A61B5/14551
摘要： An oversampling pulse oximeter includes an analog to digital converter with a sampling rate sufficient to take multiple samples per source cycle. In one embodiment, a pulse oximeter (100) includes two or more light sources (102) driven by light source drives (104) in response to drive signals from a digital signal processing unit (116). The source drives (104) may drive the sources (102) to produce a frequency division multiplex signal. The optical signals transmitted by the light sources (102) are transmitted through a patient's appendage (103) and impinge on a detector (106). The detector (106) provides an analog current signal representative of the received optical signals. An amplifier circuit (110) converts the analog current signal to an analog voltage signal in addition to performing a number of other functions. The amplifier circuit (110) outputs an analog voltage signal which is representative of the optical signals from the sources (102). This analog voltage signal is received by a fast A/D converter (112) which samples the analog voltage signal to generate a digital voltage signal which can be processed by the digital signal processing unit (116). The fast A/D converter (112) operates at a rate sufficient to take multiple samples per source cycle and may have a sampling frequency, for example, of over 41 kHz. The digital signal processing unit (116) implements software for averaging the samples over a source cycle for improved measurement consistency, improved signal to noise ratio and reduced A/D converter word length.
摘要翻译：过采样脉搏血氧计包括模数转换器，其采样速率足以在每个源周期采取多个样本。在一个实施例中，响应于来自数字信号处理单元（116）的驱动信号，脉冲血氧计（100）包括由光源驱动器（104）驱动的两个或更多个光源（102）。源驱动器（104）可以驱动源（102）以产生频分复用信号。由光源（102）发送的光信号通过病人的附属物（103）传输并撞击检测器（106）。检测器（106）提供表示所接收的光信号的模拟电流信号。除了执行多个其他功能之外，放大器电路（110）还将模拟电流信号转换为模拟电压信号。放大器电路（110）输出代表源（102）的光信号的模拟电压信号。该模拟电压信号由快速A / D转换器（112）接收，快速A / D转换器（112）对模拟电压信号进行采样，以产生可由数字信号处理单元（116）处理的数字电压信号。快速A / D转换器（112）以足以在每个源周期采取多个采样并且可以具有例如超过41kHz的采样频率的速率操作。数字信号处理单元（116）实现用于在源周期上对样本进行平均的软件，以提高测量一致性，改善的信噪比和减小的A / D转换器字长度。

10. 发明授权

US06381479B1 Pulse oximeter with improved DC and low frequency rejection 有权
标题翻译：具有改善的直流和低频抑制的脉搏血氧计
公开(公告)号：US06381479B1
公开(公告)日：2002-04-30
申请号：US09466316
申请日：1999-12-17
申请人： Mark A. Norris
发明人： Mark A. Norris
IPC分类号： A61B500
CPC分类号： A61B5/145
摘要： A system for providing an improved DC and low frequency signal rejection in a photoplethysmographic measurement instrument is disclosed. The system is used in a measurement instrument which includes at least two signal sources (106, 108) for transmitting light signals at least at two wavelengths through a tissue of a test subject and a detector (112) for converting light signals transmitted through the tissue into a detector output signal. The system includes a DC restoration (114) which removes DC and low frequency signal components from the detector output signal prior to amplification thereof so as to avoid saturating amplified output signal with the low frequency signal component. The DC restoration (114) is configured to continuously remove low frequency signal component from the detector signal during dark intervals when the signal sources are deactivated, as well as during light intervals when one of the signal sources is activated. In one embodiment, the DC restoration is embodied in the form of a DC restoration circuit (200) which comprises a transimpedance amplifier (204, 206) which receives the detector output signal and produces an amplifier output signal (222) and an integrator feedback loop (208-220) which receives the amplified output signal and produces a bias current, wherein the bias current is used to subtract DC and low frequency signal components from the detector output signal prior to amplification of the detector signal by the amplifier.
摘要翻译：公开了一种用于在光电体积描记测量仪器中提供改进的DC和低频信号抑制的系统。该系统被用在测量仪器中，该测量仪器包括至少两个信号源（106,108），用于至少在两个波长处通过测试对象的组织传输光信号，以及用于转换透过组织的光信号的检测器（112）成为检测器输出信号。该系统包括直流恢复（114），其在放大之前从检测器输出信号中去除DC和低频信号分量，以避免用低频信号分量使放大的输出信号饱和。 DC恢复（114）被配置为当信号源被去激活时以及在其中一个信号源被激活时的光间隔期间，在暗间隔期间从检测器信号中连续地去除低频信号分量。在一个实施例中，DC恢复以DC恢复电路（200）的形式实现，DC恢复电路（200）包括跨阻抗放大器（204,206），其接收检测器输出信号并产生放大器输出信号（222）和积分器反馈环路（208-220），其接收放大的输出信号并产生偏置电流，其中偏置电流用于在放大器放大检测器信号之前从检测器输出信号中减去DC和低频信号分量。

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