公开(公告)号：US20080008911A1

公开(公告)日：2008-01-10

申请号：US11800436

申请日：2007-05-03

申请人： Abraham Stroock ,  Joseph Kirtland ,  Donald Koch ,  Hector Abruna

发明人： Abraham Stroock ,  Joseph Kirtland ,  Donald Koch ,  Hector Abruna

IPC分类号： H01M8/04 ,  H01M4/86

CPC分类号： H01M8/026 ,  H01M8/0289 ,  H01M8/04186 ,  H01M2300/0082

摘要： Methods and apparatus for improving mass transfer in microfluidic laminar stirring structures. The structures include a pair of opposite planar surfaces each configured with a series of dual-chevron grooves. Each series of grooves may include a preselected number of individual grooves that can be substantially identical to each other within each series. One or more series of such dual-chevron grooves may be consecutively formed along a planar surface which constitutes one cycle. Each planar surface may be an electrode layer within a fuel cell structure whereby laminar flows fuel or oxidant are directed past the grooved surfaces to induce stirring. In a preferable embodiment of the invention, a symmetrical stirred structure is provided wherein each of a pair of top and bottom layers are formed with dual-chevron grooves which are symmetrical and mirror images of each other. Increased rates of mass transfer at the boundary layers in proximity to the electrodes and other benefits over current membraneless mixing cell structures are provided.

摘要翻译： 用于改善微流体层流搅拌结构中传质的方法和装置。 这些结构包括一对相对的平面，每个表面均配置有一系列双人字形凹槽。 每个系列的凹槽可以包括预选数量的单个凹槽，其可以在每个系列内彼此基本相同。 可以沿着构成一个周期的平面表面连续地形成一个或多个这样的双人字形凹槽系列。 每个平面表面可以是燃料电池结构内的电极层，其中层流燃料或氧化剂被引导通过槽表面以引起搅拌。 在本发明的优选实施例中，提供了对称的搅拌结构，其中一对顶层和底层中的每一个都形成有彼此对称的和对称的双人字形凹槽。 提供了在电极附近的边界层处的质量传递速率增加以及超过当前无膜混合单元结构的其它益处。

公开(公告)号：US6144495A

公开(公告)日：2000-11-07

申请号：US997699

申请日：1997-12-23

申请人： Donald Koch ,  James McGuire

发明人： Donald Koch ,  James McGuire

IPC分类号： G03F7/20 ,  H01L21/027 ,  G02B27/10 ,  G02B27/14

CPC分类号： G03F7/70075 ,  G03F7/702 ,  G03F7/70233 ,  G03F7/70358

摘要： A projection light source, and associated method, for generating an arcuate band of light, including an angular integrator, an image dissector, and a relay and remapper. The angular integrator includes a first face, a second face, and a plurality of triangular grooves longitudinally extending along the first face and the second face. The triangular grooves are separated in the transverse direction by gaps, and the triangular grooves on the first face lie in a substantially orthogonal direction to the triangular grooves on the second face. Light passes from the first face to the second face. The image dissector includes an input face, an output face, and plural elements that redirect light from the input face to the output face. The output face has a substantially rectangular shape that is different than that of the input face. At least one of the plural elements has at least one coating that reduces optical transmission efficiency of the element. The relay and remapper include a lens system and a parabolic mirror. The lens system has a highly curved field that distorts the substantially rectangular-shaped band of light into a curved image whose radius of curvature is the same as the arcuate band of light. The parabolic mirror has a latus rectum that is approximately equal to a curvature of the substantially arcuate band of light and has a cross section at the latus rectum.

摘要翻译： 一种用于产生包括角积分器，图像解析器以及继电器和再映射器的弧形光带的投影光源和相关方法。 角积分器包括第一面，第二面和沿着第一面和第二面纵向延伸的多个三角形槽。 三角形槽通过间隙在横向上分离，并且第一面上的三角形槽位于与第二面上的三角形槽基本正交的方向上。 光从第一面到第二面。 图像解析器包括输入面，输出面和将来自输入面的光重定向到输出面的多个元件。 输出面具有与输入面不同的大致矩形形状。 多个元件中的至少一个具有降低元件的光传输效率的至少一个涂层。 继电器和再映射器包括透镜系统和抛物面镜。 透镜系统具有高弯曲的场，其将基本上矩形的光带变形成曲率半径与弧形光束相同的曲率图像。 抛物面镜具有大致等于基本上弓形的光带的曲率的直肠，并且在直肠直肠处具有横截面。

公开(公告)号：US6122107A

公开(公告)日：2000-09-19

申请号：US285063

申请日：1999-04-02

申请人： Donald Koch ,  James McGuire

发明人： Donald Koch ,  James McGuire

IPC分类号： G03F7/20 ,  H01L21/027 ,  G02B27/10

CPC分类号： G03F7/70075 ,  G03F7/702 ,  G03F7/70233 ,  G03F7/70358

摘要： A projection light source, and associated method, for generating an arcuate band of light, including an angular integrator, an image dissector, and a relay and remapper. The angular integrator includes a first face, a second face, and a plurality of triangular grooves longitudinally extending along the first face and the second face. The triangular grooves are separated in the transverse direction by gaps, and the triangular grooves on the first face lie in a substantially orthogonal direction to the triangular grooves on the second face. Light passes from the first face to the second face. The image dissector includes an input face, an output face, and plural elements that redirect light from the input face to the output face. The output face has a substantially rectangular shape that is different than that of the input face. At least one of the plural elements has at least one coating that reduces optical transmission efficiency of the element. The relay and remapper include a lens system and a parabolic mirror. The lens system has a highly curved field that distorts the substantially rectangular-shaped band of light into a curved image whose radius of curvature is the same as the arcuate band of light. The parabolic mirror has a latus rectum that is approximately equal to a curvature of the substantially arcuate band of light and has a cross section at the latus rectum.

摘要翻译： 一种用于产生包括角积分器，图像解析器以及继电器和再映射器的弧形光带的投影光源和相关方法。 角积分器包括第一面，第二面和沿着第一面和第二面纵向延伸的多个三角形槽。 三角形槽通过间隙在横向上分离，并且第一面上的三角形槽位于与第二面上的三角形槽基本正交的方向上。 光从第一面到第二面。 图像解析器包括输入面，输出面和将来自输入面的光重定向到输出面的多个元件。 输出面具有与输入面不同的大致矩形形状。 多个元件中的至少一个具有降低元件的光传输效率的至少一个涂层。 继电器和再映射器包括透镜系统和抛物面镜。 透镜系统具有高弯曲的场，其将基本上矩形的光带变形成曲率半径与弧形光束相同的曲率图像。 抛物面镜具有大致等于基本上弓形的光带的曲率的直肠，并且在直肠直肠处具有横截面。

公开(公告)号：US20070132501A1

公开(公告)日：2007-06-14

申请号：US11419620

申请日：2006-05-22

申请人： Donald Koch ,  Douglas Youngblood ,  Christopher Ludeman

发明人： Donald Koch ,  Douglas Youngblood ,  Christopher Ludeman

IPC分类号： H03K17/00

CPC分类号： H03K17/063 ,  H03K17/005 ,  H03K17/6871

摘要： A MOSFET-based, multi signal-switching circuit controllably passes analog/audio signals and digital signals through a common terminal to a single connector. Analog/audio signals are coupled through a single N-channel MOSFET analog signal switch which, when turned-ON, minimizes distortion of the analog/audio signal and capacitive loading to an adjacent, MOS-based or CMOS-based digital data signal switch. A respective turn-OFF circuit maintains its associated switch MOSFET turned OFF.

摘要翻译： 基于MOSFET的多信号切换电路可控制地将模拟/音频信号和数字信号通过公共端子传递到单个连接器。 模拟/音频信号通过单个N沟道MOSFET模拟信号开关进行耦合，当开启导通时，模拟/音频信号的失真和对相邻的基于MOS或基于CMOS的数字信号开关的电容负载最小化。 相应的关断电路将其关联的开关MOSFET保持关闭。

公开(公告)号：US20060053095A1

公开(公告)日：2006-03-09

申请号：US10935734

申请日：2004-09-07

申请人： Donald Koch ,  David Pope ,  Kevin Scott

发明人： Donald Koch ,  David Pope ,  Kevin Scott

IPC分类号： G06F17/30

CPC分类号： G06F17/30864 ,  Y10S707/99933 ,  Y10S707/99935 ,  Y10S707/99936 ,  Y10S707/99943

摘要： Systems and methods for handling input search engine data. A data store is searched based upon one or more data items contained within the input search engine data. The result of searching the data store is used to determine which data items in the input search engine data might be a search term. Search terms are extracted based upon the result of searching the data store.

公开(公告)号：US5682385A

公开(公告)日：1997-10-28

申请号：US533078

申请日：1995-09-25

申请人： Frank X. Garcia ,  Donald Koch

发明人： Frank X. Garcia ,  Donald Koch

IPC分类号： H04J3/14 ,  H04Q1/02 ,  H04Q11/04 ,  H04J3/02

CPC分类号： H04J3/14 ,  H04Q1/028 ,  H04Q11/0435 ,  H04Q2213/13003 ,  H04Q2213/13209 ,  H04Q2213/13298 ,  H04Q2213/13332 ,  Y10S370/904

摘要： A system for use by a multiplexing telecommunications interface that allows the interface to communicate with a larger variety of digital subscriber loop protocols, such as ISDN. For example, a remote terminal may include common equipment that allocates a limited bandwidth to particular channel cards. Such channel cards control the flow of information between a digital subscriber loop and a digital transmission facility. If the bandwidth allocated to a particular channel card is insufficient, a provisioning channel card may be used which will signal the common equipment that it exists and should be allocated to a bandwidth. However, the provisioning channel card will effectively provide its bandwidth to at least one other channel card, which will use the additional bandwidth to meet the requirements of a particular protocol, such as ISDN.

摘要翻译： 一种由复用电信接口使用的系统，其允许接口与诸如ISDN之类的各种数字用户环路协议进行通信。 例如，远程终端可以包括向特定信道卡分配有限带宽的公共设备。 这种信道卡控制数字用户环路和数字传输设施之间的信息流。 如果分配给特定信道卡的带宽不足，则可以使用提供信道卡，其将向共同设备通知它存在并且应当被分配给带宽。 然而，配置信道卡将有效地向至少一个其他信道卡提供其带宽，其将使用附加带宽来满足特定协议（例如ISDN）的要求。