公开(公告)号：USD1027911S1

公开(公告)日：2024-05-21

申请号：US29927112

申请日：2024-02-02

申请人： Xiaoyan Wang

设计人： Xiaoyan Wang

摘要： FIG. 1 is a front, tight and top perspective view of a wireless speaker, showing my new design;
FIG. 2 is a front, left and bottom perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof; and,
FIG. 9 is an enlarged view of area “9” in FIG. 1.
The dot-dash broken lines depict the boundaries of the enlargements that form no part of the claimed design.

公开(公告)号：USD744038S1

公开(公告)日：2015-11-24

申请号：US29501255

申请日：2014-09-03

申请人： Xiaoyan Wang

设计人： Xiaoyan Wang

公开(公告)号：US08710752B2

公开(公告)日：2014-04-29

申请号：US13040229

申请日：2011-03-03

申请人： Xuecheng Jin ,  Minjong Kim ,  Enzhu Liang ,  John William Kesterson ,  Xiaoyan Wang

发明人： Xuecheng Jin ,  Minjong Kim ,  Enzhu Liang ,  John William Kesterson ,  Xiaoyan Wang

IPC分类号： H05B37/00

CPC分类号： H05B33/0815 ,  H05B33/0827 ,  H05B33/0851

摘要： A system that provides an intelligent approach to driving multiple strings of LEDs. A processing device determines an optimal current level for each LED string from a limited set of allowed currents. The processing device also determines a PWM duty cycle for driving the LEDs in each LED string to provide precise brightness control over the LED string. The settings for the current level and duty cycle are transmitted to an LED driver for regulating the current and on-off times of the LED strings. Beneficially, the system reduces the size of the LED driver while leveraging existing resources available in the processing device to operate the LEDs in a power efficient manner.

摘要翻译： 提供智能方法来驱动多串LED的系统。 处理装置从有限的允许电流集合确定每个LED串的最佳电流电平。 处理装置还确定用于驱动每个LED串中的LED的PWM占空比，以提供对LED串的精确亮度控制。 当前电平和占空比的设置被传送到LED驱动器，用于调节LED串的电流和开关时间。 有利的是，该系统在利用处理装置中可利用的现有资源以功率有效的方式来操作LED的同时减小了LED驱动器的尺寸。

公开(公告)号：US20140035502A1

公开(公告)日：2014-02-06

申请号：US13567815

申请日：2012-08-06

申请人： Xiaoyan Wang ,  Yateendra Deshpande

发明人： Xiaoyan Wang ,  Yateendra Deshpande

IPC分类号： H02P6/08

CPC分类号： H02K29/12 ,  H02P21/32 ,  H02P2207/05

摘要： A system for determining an initial position of a rotor (9) of a PMSM motor includes a motor controller (2) coupled to a plurality of phase windings of the motor by means of an actuation circuit (3). A processor (12) and an interface circuit (14) are coupled to the processor and the phase windings. The processor determines if the rotor speed is zero, and if so causes the actuation circuit to sequentially apply voltage signals (Vab, Vba, Vac, Vca, Vbc, and Vcb) to the phase windings to produce corresponding phase winding current signals (Iab, Icb, Ica, Iba, Ibc, Iac) in the various phase windings. The phase winding current signals are sensed and digitized. The processor then determines a position of a magnetic flux path associated with the rotor by computing the initial position of the rotor from one of the digitized phase winding current signals associated with the predetermined magnetic flux path.

摘要翻译： 用于确定PMSM马达的转子（9）的初始位置的系统包括通过致动电路（3）耦合到马达的多个相绕组的马达控制器（2）。 处理器（12）和接口电路（14）耦合到处理器和相绕组。 处理器确定转子速度是否为零，如果是，则使致动电路依次向相绕组施加电压信号（Vab，Vba，Vac，Vca，Vbc和Vcb）以产生相应的相绕组电流信号（Iab， Icb，Ica，Iba，Ibc，Iac）。 相绕组电流信号被感测和数字化。 然后，处理器通过从与预定磁通路径相关联的数字化相位绕组电流信号之一计算转子的初始位置来确定与转子相关联的磁通路径的位置。

公开(公告)号：US07547801B2

公开(公告)日：2009-06-16

申请号：US11474795

申请日：2006-06-26

申请人： Fritz Pohl ,  Ricardo Serra ,  Matthias Ehlers ,  Jeffrey S. Bolton ,  Gary B. Solak ,  Kirk J. Bourgeois ,  Gregory L. McCullough ,  Amber R. Hicks ,  Richard G. Hillman ,  James E. Sager ,  Xiaoyan Wang ,  Spotswood Miller ,  Ralf Ochel ,  Sara DeLucia

发明人： Fritz Pohl ,  Ricardo Serra ,  Matthias Ehlers ,  Jeffrey S. Bolton ,  Gary B. Solak ,  Kirk J. Bourgeois ,  Gregory L. McCullough ,  Amber R. Hicks ,  Richard G. Hillman ,  James E. Sager ,  Xiaoyan Wang ,  Spotswood Miller ,  Ralf Ochel ,  Sara DeLucia

IPC分类号： C07C249/00

CPC分类号： C07C263/10 ,  C07C265/14

摘要： Isocyanates are produced by reacting an organic amine with phosgene in process which includes at least three stages. The first stage is carried out in a dynamic mixer. The second stage is carried out in at least one reactor. The third stage is carried out in at least one material separating apparatus. The pressure in the reactor of the second stage must be greater than or equal to the pressure in the dynamic mixer. The pressure in the third stage material separating apparatus must be lower than the pressure in the second stage reactor.

摘要翻译： 异氰酸酯是通过使有机胺与光气反应制备的，该方法包括至少三个阶段。 第一阶段在动态搅拌机中进行。 第二阶段在至少一个反应器中进行。 第三级在至少一种材料分离装置中进行。 第二级反应器中的压力必须大于或等于动态混合器中的压力。 第三级材料分离装置中的压力必须低于第二级反应器中的压力。

公开(公告)号：US20090134953A1

公开(公告)日：2009-05-28

申请号：US12300464

申请日：2007-05-17

申请人： Andrew Tye Hunt ,  Zhiyong Zhao ,  Yongdong Jiang ,  Xiaoyan Wang ,  Kwang Choi

发明人： Andrew Tye Hunt ,  Zhiyong Zhao ,  Yongdong Jiang ,  Xiaoyan Wang ,  Kwang Choi

IPC分类号： H03H7/01

CPC分类号： H01P1/184 ,  H01P1/203

摘要： Tunable radio frequency (RF) devices, such as phase shifters and filters, are formed by depositing thin film layers on a substrate and patterning the thin film layers by various lithography techniques. A thin film metal layer is patterned to form a plurality of capacitors and inductors, leaving at least two grounding regions that lie closely adjacent the capacitors and inductors. As patterned portions of the grounding regions are electrically isolated from each other. Performance of the devices are improved by electrically bridging the differential potential grounding regions.

摘要翻译： 通过在衬底上沉积薄膜层并通过各种光刻技术对薄膜层进行图案化来形成可调谐射频（RF）器件，例如移相器和滤波器。 图案化薄膜金属层以形成多个电容器和电感器，留下紧邻电容器和电感器的至少两个接地区域。 由于接地区域的图案部分彼此电隔离。 通过电气桥接差分电位接地区来改善器件的性能。

公开(公告)号：US08988169B2

公开(公告)日：2015-03-24

申请号：US12300464

申请日：2007-05-17

申请人： Andrew Tye Hunt ,  Zhiyong Zhao ,  Yongdong Jiang ,  Xiaoyan Wang ,  Kwang Choi

发明人： Andrew Tye Hunt ,  Zhiyong Zhao ,  Yongdong Jiang ,  Xiaoyan Wang ,  Kwang Choi

IPC分类号： H03H7/00 ,  H01P1/18 ,  H01P1/203

CPC分类号： H01P1/184 ,  H01P1/203

摘要： Tunable radio frequency (RF) devices, such as phase shifters and filters, are formed by depositing thin film layers on a substrate and patterning the thin film layers by various lithography techniques. A thin film metal layer is patterned to form a plurality of capacitors and inductors, leaving at least two grounding regions that lie closely adjacent the capacitors and inductors. As patterned portions of the grounding regions are electrically isolated from each other. Performance of the devices are improved by electrically bridging the differential potential grounding regions.

摘要翻译： 通过在衬底上沉积薄膜层并通过各种光刻技术对薄膜层进行图案化来形成可调谐射频（RF）器件，例如移相器和滤波器。 图案化薄膜金属层以形成多个电容器和电感器，留下紧邻电容器和电感器的至少两个接地区域。 由于接地区域的图案部分彼此电隔离。 通过电气桥接差分电位接地区来改善器件的性能。

公开(公告)号：US08791647B2

公开(公告)日：2014-07-29

申请号：US13339196

申请日：2011-12-28

申请人： John William Kesterson ,  Xiaoyan Wang ,  Xuecheng Jin ,  Enzhu Liang ,  Selcuk Sen

发明人： John William Kesterson ,  Xiaoyan Wang ,  Xuecheng Jin ,  Enzhu Liang ,  Selcuk Sen

IPC分类号： G05F1/00

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： A system controls a switching power converter to power LED strings using a predictive feedforward control mechanism. An LED controller determines programmed current levels and duty cycles for driving LED strings. The LED controller determines a predicted load for a subsequent cycle of a switching power converter driving the LED strings based on the programmed current levels and duty cycles. A power conversion controller uses the predicted load information to control switching of the switching power converter. This improves the dynamic response of the switching converter to changing load conditions, thereby improving overall power efficiency and performance of the system.

摘要翻译： 系统使用预测前馈控制机制控制开关功率转换器为LED串供电。 LED控制器确定用于驱动LED串的编程电流电平和占空比。 LED控制器基于编程的电流电平和占空比确定驱动LED串的开关功率转换器的后续周期的预测负载。 电力转换控制器使用预测负载信息来控制开关功率转换器的开关。 这改善了开关转换器对变化的负载条件的动态响应，从而提高了系统的整体功率效率和性能。

公开(公告)号：US20120223648A1

公开(公告)日：2012-09-06

申请号：US13040229

申请日：2011-03-03

申请人： Xuecheng Jin ,  Minjong Kim ,  Enzhu Liang ,  John William Kesterson ,  Xiaoyan Wang

发明人： Xuecheng Jin ,  Minjong Kim ,  Enzhu Liang ,  John William Kesterson ,  Xiaoyan Wang

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0827 ,  H05B33/0851

摘要： A system that provides an intelligent approach to driving multiple strings of LEDs. A processing device determines an optimal current level for each LED string from a limited set of allowed currents. The processing device also determines a PWM duty cycle for driving the LEDs in each LED string to provide precise brightness control over the LED string. The settings for the current level and duty cycle are transmitted to an LED driver for regulating the current and on-off times of the LED strings. Beneficially, the system reduces the size of the LED driver while leveraging existing resources available in the processing device to operate the LEDs in a power efficient manner.

摘要翻译： 提供智能方法来驱动多串LED的系统。 处理装置从有限的允许电流集合确定每个LED串的最佳电流电平。 处理装置还确定用于驱动每个LED串中的LED的PWM占空比，以提供对LED串的精确亮度控制。 当前电平和占空比的设置被传送到LED驱动器，用于调节LED串的电流和开关时间。 有利的是，该系统在利用处理装置中可利用的现有资源以功率有效的方式来操作LED的同时减小了LED驱动器的尺寸。

公开(公告)号：US08018743B2

公开(公告)日：2011-09-13

申请号：US12398878

申请日：2009-03-05

申请人： Xiaoyan Wang ,  Liang Yan ,  Junjie Zheng ,  John William Kesterson ,  Clarita Poon

发明人： Xiaoyan Wang ,  Liang Yan ,  Junjie Zheng ,  John William Kesterson ,  Clarita Poon

IPC分类号： H02M3/335 ,  H02M3/157

CPC分类号： H02M3/33507 ,  H02M2001/0032 ,  Y02B70/16

摘要： In a switching power converter, PWM mode and PFM mode are separated into two independent control sections with the control voltage range in each control section determined independently. Each of the PWM and PFM modulation modes cannot operate continuously beyond its boundaries, thereby forming a control gap between the two control sections within which no continuous operation is allowed. In order to supply a load condition within the control gap, the power supply operates at the two boundaries of the control gap. Transition between PWM and PFM modes occurs fast, with low output voltage ripple. No limitation needs to be imposed on the control voltage range in each of the PWM and PFM control sections, because the control parameters in the PWM and PFM control sections need not be matched to one another, due to separation of the PWM and PFM modes by the control gap.

摘要翻译： 在开关电源转换器中，PWM模式和PFM模式分为两个独立控制部分，每个控制部分的控制电压范围独立确定。 每个PWM和PFM调制模式都不能连续超过其边界，从而在两个控制部分之间形成一个控制间隙，在这两个控制部分之间不允许连续的操作。 为了在控制间隙内提供负载条件，电源在控制间隙的两个边界处工作。 PWM和PFM模式之间的转换发生得很快，输出电压波动较小。 在PWM和PFM控制部分的每个PWM控制部分的控制电压范围不受限制，因为PWM和PFM控制部分中的控制参数不需要彼此匹配，这是由于PWM和PFM模式的分离 控制差距。