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    Fuel deoxygenation system with non-metallic fuel plate assembly
    3.
    发明申请
    Fuel deoxygenation system with non-metallic fuel plate assembly 有权
    燃油脱氧系统采用非金属燃油板组装

    公开(公告)号：US20070163439A1

    公开(公告)日：2007-07-19

    申请号：US11334590

    申请日：2006-01-18

    申请人： Charles Coffin ,  Thomas Tillman ,  He Huang ,  Brian Welch

    发明人： Charles Coffin ,  Thomas Tillman ,  He Huang ,  Brian Welch

    IPC分类号： B01D53/22

    CPC分类号： B01D63/082 ,  B01D19/0031 ,  B01D19/0036 ,  B01D63/081 ,  B01D65/08 ,  B01D2321/20 ,  B64D37/32 ,  Y02T50/44 ,  Y10S55/05

    摘要： A fuel system for an energy conversion device includes a multiple of non-metallic fuel plates, gaskets, oxygen permeable membranes, porous substrate plates, and vacuum frame plates. Intricate 3-dimension fuel channel structures such as laminar flow impingement elements within the fuel channel dramatically enhance oxygen diffusivity in the FSU. The fuel plates are manufactured from a relatively soft non-metallic material. The non-metallic fuel plates and gasket arrangement provide an effective sealing interface between the fuel plate and oxygen permeable membrane, since compression may be applied to the plates without damaging the relatively delicate oxygen permeable membrane.

    摘要翻译： 一种用于能量转换装置的燃料系统包括多个非金属燃料板，垫圈，透氧膜，多孔基板和真空框架板。 复杂的三维燃料通道结构，如燃料通道内的层流冲击元件，显着提高了FSU中的氧气扩散系数。 燃料板由相对柔软的非金属材料制成。 非金属燃料板和垫圈装置提供了燃料板和氧气可渗透膜之间的有效的密封接口，因为压缩可以施加到板上而不损害相对精细的透氧膜。

    Method and system for a feedback transimpedance amplifier with sub-40khz low-frequency cutoff
    4.
    发明授权
    Method and system for a feedback transimpedance amplifier with sub-40khz low-frequency cutoff 有权
    具有低于40khz低频截止频率的反馈跨阻放大器的方法和系统

    公开(公告)号：US08471639B2

    公开(公告)日：2013-06-25

    申请号：US13175545

    申请日：2011-07-01

    申请人： Brian Welch

    发明人： Brian Welch

    IPC分类号： H03F3/08

    CPC分类号： H03F3/45237 ,  G01J1/44 ,  H03F1/34 ,  H03F3/087 ,  H03F3/45071 ,  H03F3/45076 ,  H03F3/45475 ,  H03F3/45968 ,  H03F2200/405 ,  H03F2203/45222 ,  H03F2203/45288 ,  H03F2203/45511 ,  H03F2203/45526

    摘要： A system for a feedback transimpedance amplifier with sub-40 khz low-frequency cutoff is disclosed and may include amplifying electrical signals received via coupling capacitors utilizing a transimpedance amplifier (TIA) having feedback paths comprising source followers and feedback resistors. The feedback paths may be coupled prior to the coupling capacitors at inputs of the TIA. Voltages may be level shifted prior to the coupling capacitors to ensure stable bias conditions for the TIA. The TIA may be integrated in a CMOS chip and the source followers may comprise CMOS transistors. The TIA may receive current-mode logic or voltage signals. The electrical signals may be received from a photodetector, which may comprise a silicon germanium photodiode and may be differentially coupled to the TIA. The chip may comprise a CMOS photonics chip where optical signals for the photodetector in the CMOS photonics chip may be received via one or more optical fibers.

    摘要翻译： 公开了一种具有低于40khz低频截止的反馈跨阻放大器的系统，并且可以包括利用具有包括源极跟随器和反馈电阻器的反馈路径的跨阻抗放大器（TIA）放大经由耦合电容器接收的电信号。 反馈路径可以在TIA输入端处的耦合电容器之前耦合。 在耦合电容器之前，电压可能会发生电平偏移，以确保TIA稳定的偏置条件。 TIA可以集成在CMOS芯片中，源极跟随器可以包括CMOS晶体管。 TIA可以接收电流模式逻辑或电压信号。 电信号可以从光电检测器接收，光电检测器可以包括硅锗光电二极管，并且可以与TIA差分耦合。 芯片可以包括CMOS光子芯片，其中可以经由一个或多个光纤接收CMOS光子芯片中的光电检测器的光信号。

    Video projector and optical light valve therefor
    5.
    发明授权
    Video projector and optical light valve therefor 有权

    公开(公告)号：US07116380B2

    公开(公告)日：2006-10-03

    申请号：US10222794

    申请日：2002-08-19

    申请人： Brian Welch ,  Michael Miller

    发明人： Brian Welch ,  Michael Miller

    IPC分类号： H04N5/74 ,  G02B26/00

    CPC分类号： H04N5/7458 ,  G02B26/0825 ,  G02B26/0841

    摘要： A video projector apparatus including a linear array of individually addressable reflective active elements, an optical system including a light source and providing a linear light pattern focused on said linear array and from which is created an image of the linear array, an optical scanning system for receiving the image of the linear array including a scanning member that successively scans the array to provide a two-dimensional image, and a projection system receiving the two-dimensional image and including a screen upon which the two-dimensional image is displayed.

    Anti-scalp attachment for a weed cutter
    6.
    发明授权
    Anti-scalp attachment for a weed cutter 有权

    公开(公告)号：US11234364B1

    公开(公告)日：2022-02-01

    申请号：US16844500

    申请日：2020-04-09

    申请人： Brian Welch

    发明人： Brian Welch

    IPC分类号： A01D34/416 ,  A01D34/90

    摘要： An anti-scalp attachment for a weed and grass trimmer preferably includes a tube clamp, a height adjustment tube, an elbow member and a ground support member. The tube clamp preferably includes a two piece tube clamp and a pivot member. The pivot member is preferably secured to a bottom of a first clamp member. The height adjustment tube is retained in the pivot member. The elbow member includes a horizontal leg and a vertical leg. The horizontal and vertical legs include a plurality of adjustment holes. The ground support member preferably includes a ground tube, a contact support member and a tapping projection. The contact support member is attached to a bottom of the ground tube at one end. The tapping projection preferably extends upward from a top of the ground tube. A horizontal adjustment hole is formed in an opposing end of the ground tube.

    Method And System for A Distributed Optoelectronic Receiver
    7.
    发明申请
    Method And System for A Distributed Optoelectronic Receiver 审中-公开

    公开(公告)号：US20190280781A1

    公开(公告)日：2019-09-12

    申请号：US16355362

    申请日：2019-03-15

    申请人： Brian Welch ,  Gianlorenzo Masini

    发明人： Brian Welch ,  Gianlorenzo Masini

    IPC分类号： H04B10/69 ,  H04B10/80 ,  H03H21/00 ,  H03F3/08 ,  H03G3/30

    摘要： Methods and systems for a distributed optoelectronic receiver are disclosed and may include an optoelectronic receiver having a grating coupler, a splitter, a plurality of photodiodes, and a plurality of transimpedance amplifiers (TIAs). The receiver receives a modulated optical signal utilizing the grating coupler, splits the received signal into a plurality of optical signals, generates a plurality of electrical signals from the plurality of optical signals utilizing the plurality of photodiodes, communicates the plurality of electrical signals to the plurality of TIAs, amplifies the plurality of electrical signals utilizing the plurality of TIAs, and generates an output electrical signal from coupled outputs of the plurality of TIAs. Each TIA may be configured to amplify signals in a different frequency range. One of the plurality of electrical signals may be DC coupled to a low frequency TIA of the plurality of TIAs.

    Integrated control system for laser and Mach-Zehnder interferometer
    8.
    发明授权
    Integrated control system for laser and Mach-Zehnder interferometer 有权
    激光和马赫 - 策德尔干涉仪的集成控制系统

    公开(公告)号：US07916377B2

    公开(公告)日：2011-03-29

    申请号：US12611584

    申请日：2009-11-03

    申请人： Jeremy Witzens ,  Behnam Analui ,  Sina Mirsaidi ,  Thiruvikraman Sadagopan ,  Brian Welch ,  Adithyaram Narasimha

    发明人： Jeremy Witzens ,  Behnam Analui ,  Sina Mirsaidi ,  Thiruvikraman Sadagopan ,  Brian Welch ,  Adithyaram Narasimha

    IPC分类号： G02B26/00 ,  G02B26/08 ,  G02B6/10

    CPC分类号： G02F1/0123 ,  G02F1/225 ,  H04B10/50575

    摘要： An integrated control system for a laser and Mach-Zehnder interferometer are disclosed and may include configuring a bias point for low-speed control of an optical modulator utilizing control circuitry integrated on the same CMOS die. The optical modulator may be differentially monitored. A laser source for the modulator may be controlled utilizing monitor photodiodes via optical taps on outputs of the modulator, or utilizing a monitor photodiode on one output port of the modulator, which may comprise a Mach-Zehnder interferometer. An error signal may be generated by subtracting monitor photodiode signals from optical taps on output ports of the modulator. The bias point of the modulator may be adjusted by minimizing the error signal. Calibration time of the bias point may be reduced utilizing electronic data inversion. An output of the modulator may comprise a Y-junction and a single monitor photodiode may measure both branches of the modulator.

    摘要翻译： 公开了一种用于激光和马赫 - 策德尔干涉仪的集成控制系统，并且可以包括使用集成在同一CMOS芯片上的控制电路来配置用于低速控制光调制器的偏置点。 可以差别地监视光学调制器。 用于调制器的激光源可以通过调制器的输出端上的光学抽头利用监视器光电二极管来控制，或者利用调制器的一个输出端口上的监视器光电二极管，该监视器光电二极管可以包括马赫 - 曾德干涉仪。 可以通过从调制器的输出端口上的光学抽头减去监视器光电二极管信号来产生误差信号。 可以通过使误差信号最小化来调整调制器的偏置点。 使用电子数据反演可以减少偏置点的校准时间。 调制器的输出可以包括Y结，并且单个监视器光电二极管可以测量调制器的两个分支。

    INTEGRATED CONTROL SYSTEM FOR LASER AND MACH-ZEHNDER INTERFEROMETER
    9.
    发明申请
    INTEGRATED CONTROL SYSTEM FOR LASER AND MACH-ZEHNDER INTERFEROMETER 有权
    用于激光和MACH-ZEHNDER干涉仪的集成控制系统

    公开(公告)号：US20100128336A1

    公开(公告)日：2010-05-27

    申请号：US12611584

    申请日：2009-11-03

    申请人： Jeremy Witzens ,  Behnam Analui ,  Sina Mirsaidi ,  Thiruvikraman Sadagopan ,  Brian Welch ,  Adithyaram Narasimha

    发明人： Jeremy Witzens ,  Behnam Analui ,  Sina Mirsaidi ,  Thiruvikraman Sadagopan ,  Brian Welch ,  Adithyaram Narasimha

    IPC分类号： G02F1/015

    CPC分类号： G02F1/0123 ,  G02F1/225 ,  H04B10/50575

    摘要： An integrated control system for a laser and Mach-Zehnder interferometer are disclosed and may include configuring a bias point for low-speed control of an optical modulator utilizing control circuitry integrated on the same CMOS die. The optical modulator may be differentially monitored. A laser source for the modulator may be controlled utilizing monitor photodiodes via optical taps on outputs of the modulator, or utilizing a monitor photodiode on one output port of the modulator, which may comprise a Mach-Zehnder interferometer. An error signal may be generated by subtracting monitor photodiode signals from optical taps on output ports of the modulator. The bias point of the modulator may be adjusted by minimizing the error signal. Calibration time of the bias point may be reduced utilizing electronic data inversion. An output of the modulator may comprise a Y-junction and a single monitor photodiode may measure both branches of the modulator.

    摘要翻译： 公开了一种用于激光和马赫 - 策德尔干涉仪的集成控制系统，并且可以包括使用集成在同一CMOS芯片上的控制电路来配置用于低速控制光调制器的偏置点。 可以差别地监视光学调制器。 用于调制器的激光源可以通过调制器的输出端上的光学抽头利用监视器光电二极管来控制，或者利用调制器的一个输出端口上的监视器光电二极管，该监视器光电二极管可以包括马赫 - 曾德干涉仪。 可以通过从调制器的输出端口上的光学抽头减去监视器光电二极管信号来产生误差信号。 可以通过使误差信号最小化来调整调制器的偏置点。 使用电子数据反演可以减少偏置点的校准时间。 调制器的输出可以包括Y结，并且单个监视器光电二极管可以测量调制器的两个分支。

    METHOD AND SYSTEM FOR SPLIT VOLTAGE DOMAIN RECEIVER CIRCUITS
    10.
    发明申请
    METHOD AND SYSTEM FOR SPLIT VOLTAGE DOMAIN RECEIVER CIRCUITS 有权
    分接电压域接收器电路的方法和系统

    公开(公告)号：US20090087197A1

    公开(公告)日：2009-04-02

    申请号：US12208668

    申请日：2008-09-11

    申请人： Brian Welch

    发明人： Brian Welch

    IPC分类号： H04B10/06

    CPC分类号： H04L25/061 ,  G02B6/4201 ,  G02B6/4242 ,  H04B10/501 ,  H04B10/516 ,  H04B10/564 ,  H04B10/60 ,  H04B10/693 ,  H04L25/0272

    摘要： Methods and systems for split voltage domain receiver circuits are disclosed and may include amplifying complementary received signals in a plurality of partial voltage domains. The signals may be combined into a single differential signal in a single voltage domain. Each of the partial voltage domains may be offset by a DC voltage from the other partial voltage domains. The sum of the partial domains may be equal to a supply voltage of the integrated circuit. The complementary signals may be received from a photodiode. The amplified received signals may be amplified via stacked common source amplifiers, common emitter amplifiers, or stacked inverters. The amplified received signals may be DC coupled prior to combining. The complementary received signals may be amplified and combined via cascode amplifiers. The voltage domains may be stacked, and may be controlled via feedback loops. The photodetector may be integrated in the integrated circuit.

    摘要翻译： 公开了用于分压电压域接收器电路的方法和系统，并且可以包括放大多个部分电压域中的互补接收信号。 信号可以在单个电压域中组合成单个差分信号。 每个部分电压域可能被来自其它部分电压域的直流电压偏移。 部分域的总和可以等于集成电路的电源电压。 互补信号可以从光电二极管接收。 放大的接收信号可以通过堆叠的公共源放大器，公共发射极放大器或堆叠的反相器进行放大。 放大的接收信号可以在组合之前被直流耦合。 互补的接收信号可以通过共源共栅放大器被放大和组合。 电压域可以被堆叠，并且可以通过反馈回路进行控制。 光电检测器可以集成在集成电路中。