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1. 发明授权

US08988169B2 Radio frequency devices with enhanced ground structure 有权
标题翻译：射频设备具有增强的地面结构
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。

2. 发明授权

US08791647B2 Predictive control of power converter for LED driver 有权
标题翻译： LED驱动器功率转换器的预测控制
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。

3. 发明申请

US20120223648A1 Adaptive Switch Mode LED System 有权
标题翻译：自适应开关模式LED系统
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。

4. 发明授权

US08018743B2 Adaptive control for transition between multiple modulation modes in a switching power converter 有权
标题翻译：用于开关功率转换器中多个调制模式之间转换的自适应控制
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。

5. 发明申请

US20110054945A1 EXAM SHEET HANDLING SYSTEM AND METHOD 审中-公开
标题翻译：考试处理系统和方法
公开(公告)号：US20110054945A1
公开(公告)日：2011-03-03
申请号：US12868392
申请日：2010-08-25
申请人： Xiaoyan Wang
发明人： Xiaoyan Wang
IPC分类号： G06Q50/00 , G06Q10/00
CPC分类号： G06Q50/24 , G16H40/20
摘要： An exam sheet handling system includes a subscription unit configured for setting subscription conditions for doctors and a distribution unit configured for distributing exam sheets to Worklist of the doctors in accordance with the subscription conditions and a distribution principle.
摘要翻译：检查单处理系统包括配置用于设置医生的订阅条件的订阅单元和被配置为根据订阅条件和分发原则将检查单分发给医生的工作列表的分配单元。

6. 发明授权

US06597618B2 Magnetic tunnel junction magnetic random access memory 有权
标题翻译：磁隧道结磁随机存取存储器
公开(公告)号：US06597618B2
公开(公告)日：2003-07-22
申请号：US10185667
申请日：2002-06-27
申请人： Yuankai Zheng , Yihong Wu , Xiaoyan Wang , Dan You
发明人： Yuankai Zheng , Yihong Wu , Xiaoyan Wang , Dan You
IPC分类号： G11C700
CPC分类号： G11C11/16
摘要： A circuit for controlling a read operation for a magnetic random access memory (MRAM) comprising an array of magnetic tunnel junctions (MTJ) having conducting row and column lines attached thereto. The circuitry comprises a current supply for providing a read current, and a row selector for selecting a row containing a junction to be read and applying the read current to that row with the respective row line. An unselected row switch switches to at least some of the row lines not connected to the MTJ to be read, and a voltage source applies, via the unselected row switch, a voltage to each of the unselected row lines that is substantially identical in level to the voltage on the selected row line. A column selector selects the column line connected to the array containing the MTJ to be read, and a voltage detector for detecting the voltage across the MTJ to be read via the selected column and row lines.
摘要翻译：一种用于控制用于磁性随机存取存储器（MRAM）的读取操作的电路，包括具有连接到其上的导电行和列线的磁性隧道结（MTJ）阵列。电路包括用于提供读取电流的电流源，以及用于选择包含要读取的结的行的行选择器，并且将读取的电流施加到具有相应行行的该行。未选择的行开关切换到未连接到要读取的MTJ的至少一些行线，并且电压源通过未选择的行开关向每个未选择的行线施加电压，该电压基本上等于所选行线上的电压。列选择器选择连接到包含要读取的MTJ的阵列的列线，以及电压检测器，用于检测要通过所选列和行线读取的MTJ上的电压。

7. 外观设计

USD1027911S1 Wireless speaker 有权
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.

8. 外观设计

USD744038S1 Chalk 有权
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

9. 发明授权

US08710752B2 Adaptive switch mode LED system 有权
标题翻译：自适应开关模式LED系统
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。

10. 发明申请

US20140035502A1 PMSM INITIAL POSITION DETECTION SYSTEM AND METHOD 有权
标题翻译： PMSM初始位置检测系统及方法
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。

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