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1. 发明授权

US07068866B2 Slow wave optical waveguide for velocity matched semiconductor modulators 有权
标题翻译：用于速度匹配半导体调制器的慢波光波导
公开(公告)号：US07068866B2
公开(公告)日：2006-06-27
申请号：US10700245
申请日：2003-11-03
申请人： Wenshen Wang , David C Scott , Elizabeth T Kunkee
发明人： Wenshen Wang , David C Scott , Elizabeth T Kunkee
IPC分类号： G02F1/295 , G02B6/34 , G02B6/10
CPC分类号： B82Y20/00 , B82Y10/00 , G02F1/025 , G02F2201/127 , G02F2201/307 , G02F2202/32
摘要： A PIN electro-optical traveling wave modulator (10) including diffraction gratings (34, 36) positioned at opposing sides of an optical waveguide (20) that act to change the propagation pattern of the waveguide (20). The modulator (10) includes an N-type layer (14), a P-type layer (18) and an intrinsic layer (16) acting as the waveguide (20). A metal electrode (26) is in electrical contact with the N-type layer (14), and a metal electrode (30) is in electrical contact with the P-type layer (18). The electrodes (26, 30) define an RF transmission line. An optical wave (22) propagates along the waveguide (20) and interacts with the gratings (34, 36) which slow the optical wave (22) to match its speed to the speed of the RF wave in the transmission line. In one embodiment, the gratings (34, 36) are 2-D gratings formed by vertical holes (38) in the waveguide (20).
摘要翻译：一种PIN电光行波调制器（10），其包括位于光波导（20）的相对侧的衍射光栅（34,36），其用于改变波导（20）的传播图案。调制器（10）包括N型层（14），P型层（18）和用作波导（20）的本征层（16）。金属电极（26）与N型层（14）电接触，金属电极（30）与P型层（18）电接触。电极（26,30）限定RF传输线。光波（22）沿着波导（20）传播并与光栅（34,36）相互作用，光栅（34,36）使光波（22）的速度与传输线中的RF波的速度相匹配。在一个实施例中，光栅（34,36）是由波导（20）中的垂直孔（38）形成的2-D光栅。

2. 发明申请

US20180042879A1 FREE AMINO ACID PREPARATION AND USES THEREOF 审中-公开
公开(公告)号：US20180042879A1
公开(公告)日：2018-02-15
申请号：US15673214
申请日：2017-08-09
申请人： David C. Scott
发明人： David C. Scott
IPC分类号： A61K31/198 , A61K45/06 , A23L33/175 , A61K9/14 , A61K9/48 , A61K31/4172 , A61K9/08
CPC分类号： A61K31/198 , A23L33/175 , A61K9/08 , A61K9/14 , A61K9/4833 , A61K31/405 , A61K31/4172 , A61K45/06 , A61K2300/00
摘要： Compositions containing free amino acids have been found to provide effective pain relief in less than five minutes following administration. Suitable compositions include free leucine, free isoleucine, and free valine in a leucine:isoleucine:valine weight ratio of about 1.9:1:1.3. Palatability is improved by the addition of free glycine, such that sweeteners or other flavorants are not necessary. The composition can be a two part formulation in which certain amino acids are provided as a capsule or tablet in order to improve palatability.

3. 发明授权

US06624449B1 Three terminal edge illuminated epilayer waveguide phototransistor 失效
标题翻译：三端边照明外延波导光电晶体管
公开(公告)号：US06624449B1
公开(公告)日：2003-09-23
申请号：US09907317
申请日：2001-07-17
申请人： David C. Scott , Timothy A. Vang , Srinath Kalluri
发明人： David C. Scott , Timothy A. Vang , Srinath Kalluri
IPC分类号： H01L310328
CPC分类号： H01L31/03046 , H01L31/1105 , Y02E10/544
摘要： A three terminal edge illuminated epilayer waveguide phototransistor including a subcollector layer formed of an epitaxially grown quaternary semiconductor material, such as heavily doped InGaAsP. A collector region of undoped InGaAs is epitaxially grown on the subcollector layer. A base region, including a heavily doped InGaAs base layer and a very thin undoped InGaAs spacer layer, is epitaxially grown on the collector layer. An emitter region, including a doped InGaAsP layer, a doped InP layer, and a heavily doped InGaAs emitter contact layer, is epitaxially grown on the base layer. The various layers and regions are formed so as to define an edge-illuminated facet for receiving incident light.
摘要翻译：包括由外延生长的四元半导体材料（例如重掺杂的InGaAsP）形成的子集电极层的三端边照明外延波导光电晶体管。未掺杂的InGaAs的集电极区域在子集电极层上外延生长。在集电极层上外延生长包括重掺杂的InGaAs基极层和非常薄的未掺杂的InGaAs间隔层的基极区域。在基极层上外延生长包括掺杂的InGaAsP层，掺杂的InP层和重掺杂的InGaAs发射极接触层的发射极区域。形成各种层和区域以限定用于接收入射光的边缘照明面。

4. 发明授权

US06239422B1 Variable electrode traveling wave metal-semiconductor-metal waveguide photodetector 有权
标题翻译：可变电极行波金属 - 半导体 - 金属波导光电探测器
公开(公告)号：US06239422B1
公开(公告)日：2001-05-29
申请号：US09265913
申请日：1999-03-10
申请人： Timothy A. Vang , David C. Scott
发明人： Timothy A. Vang , David C. Scott
IPC分类号： G01J142
CPC分类号： G02B6/42 , H01L31/022408
摘要： A metal-semiconductor-metal photodetector (18) is provided including an optical waveguide (22) disposed on a substrate (28) and an array of metal-semiconductor-metal photodiodes (20) coupled to the optical waveguide (22). An absorber (30) is disposed between the photodiodes (20) and the optical waveguide (22) and a transmission line (26) is coupled to the photodiodes (20). Each of the photodiodes (20) includes an electrode (24) having a plurality of interdigitated electrode fingers (31) wherein a width of each finger (31) and a gap between adjacent fingers (31) tapers from one end of the electrode (24) to the other. Preferably the rate of tapering corresponds to an exponential rate of optical power decay through the photodiode (20). In this way, both the photocurrent density in the fingers (31) and the uniformity of the electric field underneath the electrodes (24) are optimized.
摘要翻译：提供了一种金属 - 半导体 - 金属光电探测器（18），其包括设置在基板（28）上的光波导（22）和耦合到光波导（22）的金属 - 半导体 - 金属光电二极管阵列（20）。吸收器（30）设置在光电二极管（20）和光波导（22）之间，传输线（26）耦合到光电二极管（20）。每个光电二极管（20）包括具有多个交叉指状电极指（31）的电极（24），其中每个指状物（31）的宽度和相邻指状物（31）之间的间隙从电极（24）的一端逐渐变细）到另一个优选地，渐缩率对应于通过光电二极管（20）的光功率衰减的指数速率。以这种方式，手指（31）中的光电流密度和电极（24）下面的电场的均匀性都被优化。

5. 发明授权

US11033522B2 Free amino acid preparation and uses thereof 有权
公开(公告)号：US11033522B2
公开(公告)日：2021-06-15
申请号：US15673214
申请日：2017-08-09
申请人： David C Scott
发明人： David C Scott
IPC分类号： A61K31/198 , A61K45/06 , A61K9/08 , A61K9/14 , A23L33/175 , A61K31/4172 , A61K9/48 , A61K31/405
摘要： Compositions containing free amino acids have been found to provide effective pain relief in less than five minutes following administration. Suitable compositions include free leucine, free isoleucine, and free valine in a leucine:isoleucine:valine weight ratio of about 1.9:1:1.3. Palatability is improved by the addition of free glycine, such that sweeteners or other flavorants are not necessary. The composition can be a two part formulation in which certain amino acids are provided as a capsule or tablet in order to improve palatability.

6. 发明授权

US07480610B2 Software state replay 有权
标题翻译：软件状态重播
公开(公告)号：US07480610B2
公开(公告)日：2009-01-20
申请号：US11181036
申请日：2005-07-12
申请人： David C. Scott , Charles W. Selvidge , Joshua D. Marantz , Frédéric Reblewski
发明人： David C. Scott , Charles W. Selvidge , Joshua D. Marantz , Frédéric Reblewski
IPC分类号： G06F9/455
CPC分类号： G06F17/5027 , G06F11/3636 , G06F11/3692
摘要： A tool for emulation systems that obtains the state values for only discrete partitions of a circuit design. When a partition is being emulated, the emulation system obtains the input values for the specified partition at each clock cycle and the state values for the specified partition at intervals. Using the state and input values with a software model of the specified circuit design partition, the tool calculates the state values for the partition at every clock cycle. The software model may correspond to the partitioning information used to implement the circuit design across multiple configurable logic element devices, such as FPGAs. Thus, each software model may correspond to the portion of a circuit design emulated on a discrete FPGA integrated circuit.
摘要翻译：用于仿真系统的工具，可以获得电路设计的独立分区的状态值。当仿真分区时，仿真系统在每个时钟周期获取指定分区的输入值，并以间隔获取指定分区的状态值。使用指定电路设计分区的软件模型的状态和输入值，该工具将在每个时钟周期计算分区的状态值。软件模型可以对应于用于跨多个可配置逻辑元件设备（例如FPGA）实现电路设计的分区信息。因此，每个软件模型可以对应于在离散FPGA集成电路上仿真的电路设计的部分。

7. 发明授权

US06933583B2 In-phase RF drive of Mach-Zehnder modulator push-pull electrodes by using coupled quantum well optical active region 有权
标题翻译： Mach-Zehnder调制器推挽电极通过使用耦合量子阱光学有源区域的同相RF驱动
公开(公告)号：US06933583B2
公开(公告)日：2005-08-23
申请号：US10411873
申请日：2003-04-10
申请人： Elizabeth T. Kunkee , David V. Forbes , David C. Scott , Timothy A. Vang , Wenshen Wang
发明人： Elizabeth T. Kunkee , David V. Forbes , David C. Scott , Timothy A. Vang , Wenshen Wang
IPC分类号： G02F1/017 , G02F1/225 , G02F1/35
CPC分类号： G02F1/2257 , G02F2201/126
摘要： A coupled quantum well Mach-Zehnder modulator that employs a push-pull structure to reduce the modulation voltage. The Mach-Zehnder modulator includes a first arm having a first PIN semiconductor device and a second arm having a second PIN semiconductor device. The intrinsic layers of the PIN devices include a coupled quantum well structure to provide an opposite index of refraction change for different DC bias voltages. An RF signal used to modulate the light beam is applied to the two arms in phase and causes the index of refraction in the intrinsic layers of the two PIN devices to change in opposite directions so that a push-pull type drive is achieved without requiring 180° out-of-phase RF drive signal.
摘要翻译：耦合量子阱马赫 - 曾德调制器采用推挽结构来降低调制电压。马赫 - 策德尔调制器包括具有第一PIN半导体器件的第一臂和具有第二PIN半导体器件的第二臂。 PIN器件的本征层包括耦合的量子阱结构，以为不同的DC偏置电压提供相反的折射率变化。用于调制光束的RF信号被同时施加到两个臂上，并且使得两个PIN器件的本征层中的折射率在相反方向上改变，使得实现推挽式驱动而不需要180° °异相RF驱动信号。

8. 发明授权

US06531925B2 Heterojunction bipolar transistor optoelectronic transimpedance amplifier using the first transistor as an optical detector 失效
标题翻译：异质结双极晶体管光电跨阻放大器，使用第一晶体管作为光检测器
公开(公告)号：US06531925B2
公开(公告)日：2003-03-11
申请号：US09907340
申请日：2001-07-17
申请人： David C. Scott , Timothy A. Vang , Srinath Kalluri
发明人： David C. Scott , Timothy A. Vang , Srinath Kalluri
IPC分类号： H03F308
CPC分类号： H03F3/08
摘要： A monolithically integrated heterojunction bipolar transistor optoelectronic transimpedance amplifier using the first transistor as an optical detector. An edge illuminated epilayer waveguide phototransistor is used as the light-detecting element. The phototransistor is used as an optical detector in which the incident light pulses are converted to electrical pulses and then amplified for further signal processing. The phototransistor is monolithically integrated on the same material substrate as the emitter follower amplifier so that the parasitics normally associated with receiver circuitry are minimized. By eliminating the parasitic impedances, the circuit can be used as a receiver in high bit rate optical communication systems.
摘要翻译：使用第一晶体管作为光学检测器的单片集成异质结双极晶体管光电跨阻放大器。边缘照明的外延波导光电晶体管被用作光检测元件。光电晶体管用作光检测器，其中入射光脉冲被转换成电脉冲，然后被放大以用于进一步的信号处理。光电晶体管单体集成在与射极跟随器放大器相同的材料衬底上，使得通常与接收器电路相关联的寄生效应被最小化。通过消除寄生阻抗，该电路可以用作高比特率光通信系统中的接收机。

9. 发明授权

US06525348B1 Two terminal edge illuminated epilayer waveguide phototransistor 失效
标题翻译：两个端边照明外延波导光电晶体管
公开(公告)号：US06525348B1
公开(公告)日：2003-02-25
申请号：US09907318
申请日：2001-07-17
申请人： David C. Scott , Timothy A. Vang , Srinath Kalluri
发明人： David C. Scott , Timothy A. Vang , Srinath Kalluri
IPC分类号： H01L310328
CPC分类号： H01L31/1105 , H01L31/03046 , Y02E10/544
摘要： An edge illuminated epilayer waveguide phototransistor including a subcollector layer formed from an epitaxially grown quaternary semiconductor material, such as heavily doped InGaAsP. A collector region of undoped InGaAs is epitaxially grown on the subcollector layer. A base region of moderately doped InGaAs is epitaxially grown on the collector layer. An emitter region, including a doped InGaAsP layer, a doped InP layer, and a heavily doped InGaAs emitter contact layer, is epitaxially grown on the base layer. The various layers and regions are formed so as to define an edge-illuminated facet for receiving incident light. Also, the base does not have an ohmic contact so that the base thickness can be minimized. Finally, the base doping concentration is minimized so that the gain-bandwidth product can be maximized.
摘要翻译：包括由外延生长的四元半导体材料（例如重掺杂的InGaAsP）形成的子集电极层的边缘照明外延波导光电晶体管。未掺杂的InGaAs的集电极区域在子集电极层上外延生长。中等掺杂的InGaAs的基极区域在集电极层上外延生长。在基极层上外延生长包括掺杂的InGaAsP层，掺杂的InP层和重掺杂的InGaAs发射极接触层的发射极区域。形成各种层和区域以限定用于接收入射光的边缘照明面。此外，基座不具有欧姆接触，使得基底厚度可以最小化。最后，使基极掺杂浓度最小化，使得增益带宽乘积可以最大化。

10. 发明申请

US20120261578A1 SCANNING LASER INFRARED MOLECULAR SPECTROMETER 审中-公开
标题翻译：扫描激光红外分光光度计
公开(公告)号：US20120261578A1
公开(公告)日：2012-10-18
申请号：US13160509
申请日：2011-06-15
申请人： David C. Scott , Kelly M. Rickey , Alexander Ksendzov , Warren P. George , Abdullah S. Aljabri , Joel M. Steinkraus
发明人： David C. Scott , Kelly M. Rickey , Alexander Ksendzov , Warren P. George , Abdullah S. Aljabri , Joel M. Steinkraus
IPC分类号： G01J3/28 , G01J5/02
CPC分类号： G01N21/031 , G01J3/0205 , G01J3/0256 , G01J3/0272 , G01J3/0286 , G01J3/0291 , G01J3/0294 , G01J3/10 , G01J3/4338 , G01N21/3504 , G01N2021/3513 , G01N2201/0636
摘要： An infrared laser spectrometer employs a laser and a thermoelectrically cooler detector. The spectrometer uses a monolithic ring mirror with a single aperture that serves to accept the input laser illumination and the output optical signal. The laser is tunable. The number of passes of the input laser illumination can be controlled, so as to define a laser path length. In some embodiments, the ring mirror is open to the atmosphere, and in other embodiments the ring mirror is closed from the ambient atmosphere to allow samples of known origin to be measured in the spectrometer.
摘要翻译：红外激光光谱仪采用激光和热电冷却器检测器。光谱仪使用具有单个孔径的单片环镜，其用于接受输入激光照明和输出光信号。激光是可调的。可以控制输入激光照射的通过次数，以便限定激光路径长度。在一些实施例中，环形反射镜对大气开放，并且在其它实施例中，环形镜从环境大气封闭，以允许在光谱仪中测量已知来源的样品。

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