利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

144 条记录 (耗时 0.039 秒)

    DC to DC converter and method for reducing overshoot
    1.
    发明授权
    DC to DC converter and method for reducing overshoot 有权
    DC到DC转换器和减少过冲的方法

    公开(公告)号：US08330442B2

    公开(公告)日：2012-12-11

    申请号：US12710860

    申请日：2010-02-23

    申请人： Wei Han ,  Ching-Ji Liang ,  Tao Liu

    发明人： Wei Han ,  Ching-Ji Liang ,  Tao Liu

    IPC分类号： G05F1/40

    CPC分类号： H02M3/158

    摘要： A DC to DC converter includes a control circuit, a gate driver circuit, and a power stage circuit. The control circuit receives and compares a DC output voltage. When the DC output voltage lower than a first threshold voltage, a PWM signal with a first frequency is outputted, and when the DC output voltage higher than the first threshold voltage, the PWM signal with a second frequency is outputted. The second frequency is higher than the first frequency. The gate driver circuit receives the PWM signal and converts the PWM signal to a first driving signal and a second driving signal. The power stage circuit converts a DC input voltage to the DC output voltage according to the first driving signal and the second driving signal.

    摘要翻译： DC-DC转换器包括控制电路，栅极驱动电路和功率级电路。 控制电路接收并比较直流输出电压。 当DC输出电压低于第一阈值电压时，输出具有第一频率的PWM信号，并且当DC输出电压高于第一阈值电压时，输出具有第二频率的PWM信号。 第二频率高于第一频率。 栅极驱动电路接收PWM信号，并将PWM信号转换为第一驱动信号和第二驱动信号。 功率级电路根据第一驱动信号和第二驱动信号将直流输入电压转换为直流输出电压。

    DC TO DC CONVERTER AND METHOD FOR REDUCING OVERSHOOT
    2.
    发明申请
    DC TO DC CONVERTER AND METHOD FOR REDUCING OVERSHOOT 有权
    直流到直流转换器和减少太阳能的方法

    公开(公告)号：US20100219803A1

    公开(公告)日：2010-09-02

    申请号：US12710860

    申请日：2010-02-23

    申请人： Wei Han ,  Ching-Ji Liang ,  Tao Liu

    发明人： Wei Han ,  Ching-Ji Liang ,  Tao Liu

    IPC分类号： G05F1/10

    CPC分类号： H02M3/158

    摘要： A DC to DC converter includes a control circuit, a gate driver circuit, and a power stage circuit. The control circuit receives and compares a DC output voltage. When the DC output voltage lower than a first threshold voltage, a PWM signal with a first frequency is outputted, and when the DC output voltage higher than the first threshold voltage, the PWM signal with a second frequency is outputted. The second frequency is higher than the first frequency. The gate driver circuit receives the PWM signal and converts the PWM signal to a first driving signal and a second driving signal. The power stage circuit converts a DC input voltage to the DC output voltage according to the first driving signal and the second driving signal.

    摘要翻译： DC-DC转换器包括控制电路，栅极驱动电路和功率级电路。 控制电路接收并比较直流输出电压。 当DC输出电压低于第一阈值电压时，输出具有第一频率的PWM信号，并且当DC输出电压高于第一阈值电压时，输出具有第二频率的PWM信号。 第二频率高于第一频率。 栅极驱动电路接收PWM信号，并将PWM信号转换为第一驱动信号和第二驱动信号。 功率级电路根据第一驱动信号和第二驱动信号将DC输入电压转换为DC输出电压。

    OVER CURRENT PROTECTING DEVICE AND METHOD ADAPTED TO DC-DC CONVERTER
    3.
    发明申请
    OVER CURRENT PROTECTING DEVICE AND METHOD ADAPTED TO DC-DC CONVERTER 审中-公开
    适用于DC-DC转换器的电流保护装置和方法

    公开(公告)号：US20110007434A1

    公开(公告)日：2011-01-13

    申请号：US12830863

    申请日：2010-07-06

    申请人： Wei Han ,  Ching-Ji Liang ,  Chai-Lin Yu ,  Ju-Ya Luo

    发明人： Wei Han ,  Ching-Ji Liang ,  Chai-Lin Yu ,  Ju-Ya Luo

    IPC分类号： H02H9/02

    CPC分类号： H02M1/32 ,  H02M1/36 ,  H02M3/156

    摘要： The invention discloses an over current protecting device and the method thereof. The over current protecting device is adapted to a DC-DC converter. A voltage output end of the DC-DC converter may generate an output current and transmit the output current to a load on a motherboard via a power copper layer on the motherboard. The over current protecting method includes the following steps: detecting a voltage drop on the power copper layer; controlling the DC-DC converter to operate normally when the voltage drop is smaller than a threshold value; and controlling the DC-DC converter to stop operating when the voltage drop is larger than the threshold value.

    摘要翻译： 本发明公开了一种过电流保护装置及其方法。 过电流保护装置适用于DC-DC转换器。 DC-DC转换器的电压输出端可以产生输出电流，并通过主板上的电源铜层将输出电流传输到主板上的负载。 过流保护方法包括以下步骤：检测功率铜层上的电压降; 当所述电压降小于阈值时，控制所述DC-DC转换器正常工作; 以及当所述电压降大于所述阈值时，控制所述DC-DC转换器停止工作。

    Fire extinguisher
    4.
    外观设计
    Fire extinguisher 有权

    公开(公告)号：USD1011634S1

    公开(公告)日：2024-01-16

    申请号：US29895406

    申请日：2023-06-21

    申请人： Wei Han

    设计人： Wei Han

    摘要： FIG. 1 is a front, right and top perspective view of a fire extinguisher, showing my design.
    FIG. 2 is a rear, left and bottom perspective view thereof.
    FIG. 3 is a front elevation view thereof.
    FIG. 4 is a rear elevation view thereof.
    FIG. 5 is a left side elevation view thereof.
    FIG. 6 is a right side elevation view thereof.
    FIG. 7 is a top plan view thereof; and,
    FIG. 8 is a bottom plan view thereof.
    The broken lines depict portions of the fire extinguisher that form no part of the claimed design.

    Use of midkine protein and the protein-containing medical device
    5.
    发明授权
    Use of midkine protein and the protein-containing medical device 有权
    使用中期蛋白和含蛋白质的医疗器械

    公开(公告)号：US09283300B2

    公开(公告)日：2016-03-15

    申请号：US13322443

    申请日：2010-05-25

    申请人： Wei Han ,  Zhonghui Zhang

    发明人： Wei Han ,  Zhonghui Zhang

    IPC分类号： A61K38/17 ,  A61P19/02 ,  A61L27/54 ,  A61L27/24 ,  A61L27/22 ,  A61K38/18 ,  A61F2/30

    CPC分类号： A61L27/227 ,  A61F2/30756 ,  A61F2002/30677 ,  A61K38/18 ,  A61L27/54 ,  A61L2300/252 ,  A61L2300/414 ,  A61L2430/06

    摘要： The applications and medical devices of Midkine in the field of biotechnology are described in this invention. This invention describes the applications of the protein as follow in (a) or (b) in preparing drugs for promoting cartilage growth or treating cartilage diseases, the protein as a growth factor for promoting chondrocyte proliferation, or medical devices containing this protein: (a) the protein whose amino acid sequence is shown as SEQ ID NO.1; (b) the proteins whose amino acid sequence have at least 60% homology comparing with amino acid sequence described in (a). The present invention is different from the present knowledge of MK and its related proteins. The experimental results demonstrated that MK promotes proliferation of three types of chondrocytes and is used for preparing drugs for treating cartilage disease. It may provide new therapy for treating cartilage diseases clinically, and new technology for expansion of chondrocytes in vitro for cartilage tissue engineering.

    摘要翻译： 本发明描述了Midkine在生物技术领域的应用和医疗设备。 本发明描述了如下（a）或（b）中的蛋白质在制备用于促进软骨生长或治疗软骨疾病的药物中的应用，所述蛋白质作为促进软骨细胞增殖的生长因子，或含有该蛋白质的医学装置：（a ）其氨基酸序列显示为SEQ ID NO.1的蛋白质; （b）与（a）中所述的氨基酸序列相比，其氨基酸序列具有至少60％同源性的蛋白质。 本发明与MK及其相关蛋白质的现有知识不同。 实验结果表明，MK促进三种软骨细胞增殖，用于制备治疗软骨疾病的药物。 可能提供临床治疗软骨疾病的新疗法，软骨组织工程体外软骨细胞扩增的新技术。

    DEVICES AND METHODS FOR DOWNHOLE ACOUSTIC IMAGING
    6.
    发明申请
    DEVICES AND METHODS FOR DOWNHOLE ACOUSTIC IMAGING 有权
    用于卧室声学成像的装置和方法

    公开(公告)号：US20150204993A1

    公开(公告)日：2015-07-23

    申请号：US14587251

    申请日：2014-12-31

    申请人： James V. Leggett, III ,  Roger R. Steinsiek ,  Wei Han ,  Kamalesh Chatterjee

    发明人： James V. Leggett, III ,  Roger R. Steinsiek ,  Wei Han ,  Kamalesh Chatterjee

    IPC分类号： G01V1/44 ,  E21B47/01 ,  G01V1/16

    CPC分类号： E21B47/01 ,  B06B1/0207 ,  B06B2201/70 ,  E21B47/011 ,  E21B47/101 ,  G01V1/40

    摘要： An acoustic transducer assembly includes: a carrier configured to be disposed in an earth formation, the carrier having a carrier axis; an array of transducer elements forming at least a semicircular shape, the array configured to emit acoustic signals in a radial direction relative to the carrier axis; and a circuit coupled to the array and configured to actuate a subset of the transducer elements and emit an acoustic beam therefrom, the circuit configured to actuate the subsets as a phased array to electronically rotate the acoustic beam about the carrier axis.

    摘要翻译： 声学换能器组件包括：被配置为设置在地层中的载体，载体具有载体轴线; 形成至少半圆形的换能器元件的阵列，所述阵列被配置为相对于所述载体轴沿径向方向发射声信号; 以及耦合到所述阵列并且被配置为致动所述换能器元件的子集并且从其发射声束的电路，所述电路被配置为致动所述子集作为相控阵列以电子地绕所述载体轴线旋转所述声束。

    Thiophene derivatives as factor XIa inhibitors
    7.
    发明授权
    Thiophene derivatives as factor XIa inhibitors 有权
    噻吩衍生物作为因子XIa抑制剂

    公开(公告)号：US08466295B2

    公开(公告)日：2013-06-18

    申请号：US12097068

    申请日：2006-12-13

    申请人： Wei Han

    发明人： Wei Han

    IPC分类号： C07D231/56 ,  C07D333/22 ,  A61K31/415 ,  A61K31/38

    CPC分类号： C07D333/24 ,  C07D333/28 ,  C07D409/04

    摘要： The present invention provides compounds of Formula (I): or stereoisomers, tautomers, pharmaceutically acceptable salts, solvates, or prodrugs thereof, wherein the variables A, L1, R3, and R11 are as defined herein. The compounds of Formula (I) are useful as selective inhibitors of serine protease enzymes of the coagulation cascade and/or contact activation system; for example thrombin, factor Xa, factor XIa, factor IXa, factor VIIa and/or plasma kallikrein. In particular, it relates to compounds that are selective factor XIa inhibitors. This invention also relates to pharmaceutical compositions comprising these compounds and methods of treating thromboembolic and/or inflammatory disorders using the same.

    摘要翻译： 本发明提供式（I）的化合物或其立体异构体，互变异构体，药学上可接受的盐，溶剂合物或前药，其中变量A，L1，R3和R11如本文所定义。 式（I）的化合物可用作凝血级联和/或接触激活系统的丝氨酸蛋白酶的选择性抑制剂; 例如凝血酶，因子Xa，因子XIa，因子IXa，因子VIIa和/或血浆激肽释放酶。 特别地，它涉及作为选择性因子XIa抑制剂的化合物。 本发明还涉及包含这些化合物的药物组合物和使用其制备血栓栓塞和/或炎症性疾病的方法。

    Programmable logic device with built in self test
    9.
    发明授权
    Programmable logic device with built in self test 有权
    可编程逻辑器件内置自检

    公开(公告)号：US07944765B1

    公开(公告)日：2011-05-17

    申请号：US12626289

    申请日：2009-11-25

    申请人： Wei Han ,  Yoshita Yerramilli ,  Loren McLaury ,  Warren Juenemann

    发明人： Wei Han ,  Yoshita Yerramilli ,  Loren McLaury ,  Warren Juenemann

    IPC分类号： G11C29/00

    CPC分类号： G11C29/08 ,  G01R31/318519 ,  G11C2029/0401

    摘要： In one embodiment of the invention, an integrated circuit such as a programmable logic device includes volatile memory, nonvolatile memory, and a data shift register for reading data from the nonvolatile memory and for reading data from and writing data to the volatile memory. A built in self test (BIST) circuit is operable to test the nonvolatile memory without the data shift register reading data from the nonvolatile memory. The BIST circuit may include a finite state machine for performing at least one of the following tests on the nonvolatile memory: bulk erase, bulk program; margin bulk program; and/or margin bulk erase. A memory controller responsive to the finite state machine is operable to write data to and read data from the nonvolatile memory during testing of the nonvolatile memory.

    摘要翻译： 在本发明的一个实施例中，诸如可编程逻辑器件的集成电路包括易失性存储器，非易失性存储器和用于从非易失性存储器读取数据并用于从易失性存储器读取数据并将数据写入到易失性存储器的数据移位寄存器。 内置自检（BIST）电路可用于测试非易失性存储器，而数据移位寄存器从非易失性存储器读取数据。 BIST电路可以包括用于对非易失性存储器执行以下测试中的至少一个的有限状态机：批量擦除，批量程序; 保证金批发方案; 和/或边缘批量擦除。 响应于有限状态机的存储器控​​制器可用于在非易失性存储器的测试期间将数据写入非易失性存储器并从其读取数据。