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51. 发明授权

US08923027B2 Five-level DC-AC converter 有权
标题翻译：五电平直流 - 交流转换器
公开(公告)号：US08923027B2
公开(公告)日：2014-12-30
申请号：US13371895
申请日：2012-02-13
申请人： Chin-Chang Wu , Wen-Jung Chiang , Ming-Pin Mai , Chia-Wei Chou , Mao-Jang He
发明人： Chin-Chang Wu , Wen-Jung Chiang , Ming-Pin Mai , Chia-Wei Chou , Mao-Jang He
IPC分类号： H02M7/5387 , H02M7/483
CPC分类号： H02M7/483 , H02M2007/4835
摘要： A five-level DC-AC converter includes a capacitor set and a full-bridge circuit. The capacitor set contains two DC capacitors, a power electronic switch and two diodes. When the power electronic switch is turned on/off, the two DC capacitors are connected in series/parallel to provide a two-level DC voltage to the full-bridge circuit. The full-bridge circuit further converts the two-level DC voltage to output a voltage with three voltage levels in the positive half cycle and three voltage levels in the negative half cycle. This achieves the goal of using five power electronic switches to convert DC power into AC power with five voltage levels.
摘要翻译：五级DC-AC转换器包括电容器组和全桥电路。电容器组包含两个直流电容器，一个电力电子开关和两个二极管。当电力电子开关打开/关闭时，两个直流电容器串联/并联连接，为全桥电路提供两级直流电压。全桥电路进一步转换两级直流电压，以在正半周期中输出三个电压电平的电压，在负半周期中输出三个电压电平。这实现了使用五个电力电子开关将DC电力转换成具有五个电压电平的AC电力的目标。

52. 发明授权

US07128354B2 Apparatus for supporting a video camera 失效
标题翻译：用于支持摄像机的装置
公开(公告)号：US07128354B2
公开(公告)日：2006-10-31
申请号：US10849934
申请日：2004-05-21
申请人： Chin-Chang Wu
发明人： Chin-Chang Wu
IPC分类号： G03B17/00
CPC分类号： F16M13/04 , F16M11/046 , F16M13/00
摘要： An apparatus for supporting a video camera includes a camera mounting bracket, a front handle assembly and a rear handle assembly. The camera mounting bracket has an L-shaped profile and includes a handle mounting shelf and a camera mounting shelf. The camera mounting shelf and the front handle assembly are attached to the front of the handle mounting shelf. The rear handle assembly is attached to the rear of the handle mounting shelf at a position between the front handle assembly and the camera mounting shelf. Consequently, the apparatus will help a person to firmly hold a video camera when using the video camera to record scenes, regardless of different heights of view.
摘要翻译：用于支持摄像机的装置包括照相机安装支架，前手柄组件和后把手组件。相机安装支架具有L形轮廓，并包括手柄安装架和相机安装架。相机安装架和前手柄组件安装在手柄安装架的前部。后把手组件在前把手组件和照相机安装架之间的位置附接到手柄安装架的后部。因此，无论视点的高度如何，该装置将帮助人们在使用摄像机记录场景时牢固地握住摄像机。

53. 发明授权

US06801023B2 DC/DC boost converter and control method therefor 有权
标题翻译： DC / DC升压转换器及其控制方法
公开(公告)号：US06801023B2
公开(公告)日：2004-10-05
申请号：US10420812
申请日：2003-04-23
申请人： Chin-Chang Wu , Hurng-Liang Chou , Ming-Hong Chiueh , Yao-Jen Chang
发明人： Chin-Chang Wu , Hurng-Liang Chou , Ming-Hong Chiueh , Yao-Jen Chang
IPC分类号： G05F1656
CPC分类号： H02M3/155 , H02J9/062 , H02M1/36 , H02M2001/0022 , H02M2001/0093
摘要： A DC/DC boost converter is consisted of an inductor, a power electronic switch, a control circuit, a first diode, a second diode and a capacitor. The power electronic switch is not operated if the input DC voltage is higher than the specified low reference DC voltage and it is regarded as the normal input DC voltage. If the input DC voltage is lower than the specified low reference DC voltage and this condition is regarded as the abnormal input DC voltage, the power electronic switch is controlled by pulse width modulation control and a dc voltage across the capacitor is created. Then, the output DC voltage is the summation of the input DC voltage and the capacitor voltage. Thus, the inventive DC/DC boost converter operates only when the input DC voltage is abnormal, thereby avoid additional power loss in the duration of normal input DC voltage.
摘要翻译： DC / DC升压转换器由电感器，电力电子开关，控制电路，第一二极管，第二二极管和电容器组成。如果输入直流电压高于指定的低参考直流电压，则电源电子开关不工作，并被视为正常输入直流电压。如果输入直流电压低于指定的低基准直流电压，该条件被视为异常输入直流电压，则电力电子开关由脉宽调制控制控制，并产生电容器两端的直流电压。然后，输出直流电压是输入直流电压和电容器电压的总和。因此，本发明的DC / DC升压转换器仅在输入DC电压异常时才起作用，从而避免了在正常输入DC电压持续时间内的额外功率损耗。

54. 发明授权

US5884983A Axle extension assembly for a bicycle 失效
标题翻译：用于自行车的车轴延伸组件
公开(公告)号：US5884983A
公开(公告)日：1999-03-23
申请号：US899845
申请日：1997-07-24
申请人： Chin-Chang Wu
发明人： Chin-Chang Wu
IPC分类号： B60B27/02 , B62J25/00 , B60B35/00
CPC分类号： B60B27/023 , B62J25/00
摘要： A axle extension assembly is rotatably mounted to an axle of a wheel hub and includes a base member mounted to the axle with a nut threadedly engaged to the axle, a ring member rotatably mounted to the base member and a tube fixedly connected to the base member. The base member has an outer threaded periphery defined in a first end thereof so as to threadedly connect the tube and a protrusion portion extending radially and outwardly from a second end of the base member. A plain section is defined between the outer threaded periphery and the protrusion portion so that the ring member is rotatably mounted thereon.
摘要翻译：轴延伸组件可旋转地安装在轮毂的轴上，并且包括安装到轴上的基部构件，其具有螺纹地接合到所述轴的螺母，可旋转地安装到所述基座构件的环构件和固定地连接到所述基座构件的管。基部构件具有限定在其第一端中的外螺纹周边，以便将管与螺纹连接并且从基部构件的第二端径向和向外延伸的突出部分。在外螺纹周边和突出部之间限定平坦部分，使得环构件可旋转地安装在其上。

55. 发明授权

US5804778A Elevator control data intercommunication programmer 失效
标题翻译：电梯控制数据通信程序员
公开(公告)号：US5804778A
公开(公告)日：1998-09-08
申请号：US774928
申请日：1996-12-27
申请人： Ching-Mau Chen , Tzu-Yuan Lin , Chin-Chang Wu , Liao-Chia Chang , Hsin-San Chang , Wen-Wei Chuang
发明人： Ching-Mau Chen , Tzu-Yuan Lin , Chin-Chang Wu , Liao-Chia Chang , Hsin-San Chang , Wen-Wei Chuang
IPC分类号： G05B19/042 , B66B1/28 , G05B15/00
CPC分类号： G05B19/0426
摘要： An elevator control data intercommunication programmer including a main board equipped with master and slave CPUs for controlling the operation of the elevator, EEPROMs for providing operation data to the CPUs, a DSP for controlling vector operation of the elevator's motor, and a data communication port for data communication with an external microprocessor unit. Through the data communication port, data can be programmed in the EEPROMs, so that the elevator operation data (parameters) in the memory of a failed CPU can be copied to another CPU for replacement.
摘要翻译：一种电梯控制数据互通编程器，包括：主板，其配备有用于控制电梯操作的主CPU和从CPU;用于向CPU提供操作数据的EEPROM;用于控制电梯电机的矢量运算的DSP;以及数据通信端口，与外部微处理器单元的数据通信。通过数据通信端口，可以将数据编程到EEPROM中，使得故障CPU的存储器中的电梯操作数据（参数）可以复制到另一个CPU进行更换。

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