公开(公告)号：US11299400B2

公开(公告)日：2022-04-12

申请号：US16826032

申请日：2020-03-20

申请人： Taotao Qiang ,  Lei Tian ,  Runtong Zhu ,  Lu Chen

发明人： Taotao Qiang ,  Lei Tian ,  Runtong Zhu ,  Lu Chen

IPC分类号： C01G25/02

摘要： A method for preparing a hierarchical porous ZrO2 includes the following steps: S1, dissolving a triblock copolymer in an organic solvent to obtain a solution A, dissolving a tannin extract in distilled water to obtain a solution B, mixing the solution A and the solution B and stirring to obtain a mixed solution; S2, adding a zirconium salt to the mixed solution obtained in step S1 and stirring; S3, heating the mixed solution obtained in step S2 in an oven to obtain ZrO2, promoting the conversion of the crystal form of ZrO2; S4, calcining ZrO2 at a high temperature to obtain the hierarchical porous ZrO2.

公开(公告)号：US20130199283A1

公开(公告)日：2013-08-08

申请号：US13514712

申请日：2010-11-05

申请人： Lu Chen ,  Eberhard Schnaibel ,  Andreas Koring ,  Richard Hoeberg ,  Michael Fey

发明人： Lu Chen ,  Eberhard Schnaibel ,  Andreas Koring ,  Richard Hoeberg ,  Michael Fey

IPC分类号： F02D41/14

CPC分类号： F02D41/1454 ,  F02D41/008 ,  F02D41/0082 ,  F02D41/1456 ,  F02D41/1495 ,  F02D2041/1432

摘要： The invention relates to a method and device for diagnosing deviations in a single cylinder lambda control in an internal combustion engine having at least two cylinders and an exhaust gas sensor designed as a broadband lambda sensor, wherein a pump current is evaluated by means of a pump cell and said pump current is used at least temporarily for an individual cylinder lambda control. According to the invention, a pump voltage or a pump voltage change is determined via the pump cell in addition to the pump current and said value is transmitted to a diagnosis apparatus. Deviations in the single cylinder lambda control can thus be better diagnosed without additional material expense according to the invention, which provides advantages in particular in respect of tightened rulemaking in on-board diagnosis. A preferred application of the method is the use in internal combustion engines having multi-bank exhaust systems.

摘要翻译： 本发明涉及一种用于诊断具有至少两个气缸的内燃机中的单气缸λ控制的偏差的方法和装置，以及设计为宽带λ传感器的废气传感器，其中泵电流通过泵 电池和所述泵电流至少临时用于单独的气缸λ控制。 根据本发明，泵电压或泵电压变化除了泵电流之外经由泵电池确定，并且所述值被传送到诊断装置。 因此，根据本发明，可以更好地诊断单缸λ控制中的偏差而不需要额外的材料费用，其特别地在车载诊断中的紧固规则制定方面提供了优点。 该方法的优选应用是在具有多排排气系统的内燃机中的应用。

公开(公告)号：US07880446B2

公开(公告)日：2011-02-01

申请号：US11352031

申请日：2006-02-10

申请人： Lu Chen ,  Bruno Ferrario

发明人： Lu Chen ,  Bruno Ferrario

IPC分类号： H01M10/46

CPC分类号： H02M3/156 ,  H02M2001/0025

摘要： One embodiment of the invention is a compensation circuit that includes a comparator that is coupled to receive a reference voltage. The compensation circuit can also include a capacitance coupled to receive a feedback voltage associated with an output voltage of a converter. Furthermore, the compensation circuit can include an adjustable resistance that is coupled to the capacitance and to the comparator.

摘要翻译： 本发明的一个实施例是一种补偿电路，其包括耦合以接收参考电压的比较器。 补偿电路还可以包括耦合以接收与转换器的输出电压相关联的反馈电压的电容。 此外，补偿电路可以包括耦合到电容和比较器的可调电阻。

公开(公告)号：US07839097B2

公开(公告)日：2010-11-23

申请号：US12012394

申请日：2008-01-31

申请人： Lu Chen ,  Kin Edward Shum

发明人： Lu Chen ,  Kin Edward Shum

IPC分类号： H05B37/02

CPC分类号： H05B33/0827 ,  G05F3/16

摘要： The invention teaches a semiconductor circuit for driving an LED in which the current passing through the LED is regulated by adjusting the NMOS Rdson using a series of digital signals. The circuit maintains a high current accuracy over wide range of current changes while keeping a low voltage drop.

摘要翻译： 本发明教导了用于驱动LED的半导体电路，其中通过使用一系列数字信号调节NMOS Rdson来调节通过LED的电流。 该电路在宽电压变化范围内保持高电流精度，同时保持低电压降。

公开(公告)号：US20100188657A1

公开(公告)日：2010-07-29

申请号：US12359476

申请日：2009-01-26

申请人： Lu Chen ,  Jason Kirkwood ,  Mohan Mahadevan ,  James A. Smith ,  Lisheng Gao ,  Junqing (Jenny) Huang ,  Tao Luo ,  Richard Wallingford

发明人： Lu Chen ,  Jason Kirkwood ,  Mohan Mahadevan ,  James A. Smith ,  Lisheng Gao ,  Junqing (Jenny) Huang ,  Tao Luo ,  Richard Wallingford

IPC分类号： G01N21/88

CPC分类号： G01N21/9501 ,  G01N2021/887 ,  H01L22/12

摘要： Systems and methods for detecting defects on a wafer are provided. One method includes generating output for a wafer by scanning the wafer with an inspection system using first and second optical states of the inspection system. The first and second optical states are defined by different values for at least one optical parameter of the inspection system. The method also includes generating first image data for the wafer using the output generated using the first optical state and second image data for the wafer using the output generated using the second optical state. In addition, the method includes combining the first image data and the second image data corresponding to substantially the same locations on the wafer thereby creating additional image data for the wafer. The method further includes detecting defects on the wafer using the additional image data.

摘要翻译： 提供了用于检测晶片上的缺陷的系统和方法。 一种方法包括通过使用检查系统的第一和第二光学状态的检查系统扫描晶片来产生晶片的输出。 第一和第二光学状态由检查系统的至少一个光学参数的不同值来定义。 该方法还包括使用使用第二光学状态产生的输出使用第一光学状态产生的输出和晶片的第二图像数据为晶片产生第一图像数据。 此外，该方法包括将第一图像数据和对应于晶片上基本相同位置的第二图像数据组合，从而产生用于晶片的附加图像数据。 该方法还包括使用附加图像数据检测晶片上的缺陷。

公开(公告)号：US20100019751A1

公开(公告)日：2010-01-28

申请号：US12571194

申请日：2009-09-30

申请人： Lu Chen ,  Bruno Ferrario

发明人： Lu Chen ,  Bruno Ferrario

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02M2001/0025

摘要： One embodiment of the invention is a compensation circuit that includes a comparator that is coupled to receive a reference voltage. The compensation circuit can also include a capacitance coupled to receive a feedback voltage associated with an output voltage of a converter. Furthermore, the compensation circuit can include an adjustable resistance that is coupled to the capacitance and to the comparator.

摘要翻译： 本发明的一个实施例是一种补偿电路，其包括耦合以接收参考电压的比较器。 补偿电路还可以包括耦合以接收与转换器的输出电压相关联的反馈电压的电容。 此外，补偿电路可以包括耦合到电容和比较器的可调电阻。

公开(公告)号：US20060176098A1

公开(公告)日：2006-08-10

申请号：US11352031

申请日：2006-02-10

申请人： Lu Chen ,  Bruno Ferrario

发明人： Lu Chen ,  Bruno Ferrario

IPC分类号： G06G7/18 ,  G06F7/64

CPC分类号： H02M3/156 ,  H02M2001/0025

摘要： One embodiment of the invention is a compensation circuit that includes a comparator that is coupled to receive a reference voltage. The compensation circuit can also include a capacitance coupled to receive a feedback voltage associated with an output voltage of a converter. Furthermore, the compensation circuit can include an adjustable resistance that is coupled to the capacitance and to the comparator.

摘要翻译： 本发明的一个实施例是一种补偿电路，其包括耦合以接收参考电压的比较器。 补偿电路还可以包括耦合以接收与转换器的输出电压相关联的反馈电压的电容。 此外，补偿电路可以包括耦合到电容和比较器的可调电阻。

公开(公告)号：US20050146393A1

公开(公告)日：2005-07-07

申请号：US10884510

申请日：2004-07-06

申请人： Lu Chen

发明人： Lu Chen

IPC分类号： H01P5/18

CPC分类号： H01P5/185

摘要： A directional coupler has a multi-layered low temperature co-fired ceramic substrate. A circuit line is located on one of the layers and is connected to an input port and an output port. Another circuit line is located on a different layer and is connected to a forward coupled port and a reverse coupled port. The circuit lines are located close to each other such that they are electromagnetically coupled. Ground planes are located on the top and bottom surfaces of the substrate.

摘要翻译： 定向耦合器具有多层低温共烧陶瓷基板。 电路线位于一个层上，并连接到输入端口和输出端口。 另一条电路线位于不同的层上，并连接到前向耦合端口和反向耦合端口。 电路线彼此靠近，使得它们被电磁耦合。 接地平面位于基板的顶面和底面。

公开(公告)号：US20150006623A1

公开(公告)日：2015-01-01

申请号：US14361018

申请日：2012-03-15

申请人： Lu Chen ,  Sheng Zhong

发明人： Lu Chen ,  Sheng Zhong

IPC分类号： H04L29/06 ,  H04L29/08

CPC分类号： H04L67/42 ,  H04L67/02 ,  H04L67/06 ,  H04L69/04

摘要： Disclosed are a method and system for transmitting a network file. The method includes: a client sends to a server a network file request message carrying a first network file identifier, wherein the network file request message is used by the client to request to obtain the current content in the network file from the server, and the first network file identifier is used for indicating the content in the network file obtained by the client; the client receives a differential file from the server, wherein the differential file stores the difference between the current content in the network file and the content in the network file obtained by the client; and the client combines the differential file with the content in the network file obtained by the client to obtain the current content in the network file. The disclosure reduces the transmission traffic and shortens the transmission time.

摘要翻译： 公开了一种用于发送网络文件的方法和系统。 该方法包括：客户端向服务器发送携带第一网络文件标识符的网络文件请求消息，其中客户端使用网络文件请求消息来请求从服务器获取网络文件中的当前内容，并且 第一网络文件标识符用于指示由客户端获取的网络文件中的内容; 客户端从服务器接收差分文件，其中差分文件存储网络文件中的当前内容与由客户端获取的网络文件中的内容之间的差异; 并且客户端将差分文件与客户端获取的网络文件中的内容相结合，以获取网络文件中的当前内容。 本公开减少了传输流量并缩短了传输时间。

公开(公告)号：US08778783B2

公开(公告)日：2014-07-15

申请号：US13469050

申请日：2012-05-10

申请人： Yuriy Melnik ,  Lu Chen ,  Hidehiro Kojiri

发明人： Yuriy Melnik ,  Lu Chen ,  Hidehiro Kojiri

IPC分类号： H01L21/20 ,  H01L21/02

CPC分类号： H01L21/02304 ,  H01L21/0242 ,  H01L21/02458 ,  H01L21/02505 ,  H01L21/0254 ,  H01L21/0262 ,  H01L29/2003 ,  H01L29/872

摘要： Methods are disclosed for growing high crystal quality group III-nitride epitaxial layers with advanced multiple buffer layer techniques. In an embodiment, a method includes forming group III-nitride buffer layers that contain aluminum on suitable substrate in a processing chamber of a hydride vapor phase epitaxy processing system. A hydrogen halide or halogen gas is flowing into the growth zone during deposition of buffer layers to suppress homogeneous particle formation. Some combinations of low temperature buffers that contain aluminum (e.g., AlN, AlGaN) and high temperature buffers that contain aluminum (e.g., AlN, AlGaN) may be used to improve crystal quality and morphology of subsequently grown group III-nitride epitaxial layers. The buffer may be deposited on the substrate, or on the surface of another buffer. The additional buffer layers may be added as interlayers in group III-nitride layers (e.g., GaN, AlGaN, AlN).

摘要翻译： 公开了用于生长具有先进的多缓冲层技术的高结晶质量III族氮化物外延层的方法。 在一个实施例中，一种方法包括在氢化物气相外延处理系统的处理室中形成在合适的衬底上含有铝的III族氮化物缓冲层。 在沉积缓冲层期间，卤化氢或卤素气体流入生长区以抑制均匀的颗粒形成。 可以使用含有铝的低温缓冲液（例如AlN，AlGaN）和含有铝的高温缓冲液（例如AlN，AlGaN）的一些组合来改善随后生长的III族氮化物外延层的晶体质量和形态。 缓冲液可以沉积在衬底上，或者沉积在另一缓冲液的表面上。 附加的缓冲层可以作为III族氮化物层（例如，GaN，AlGaN，AlN）中的中间层添加。