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1.发明授权Method and apparatus for driving a sensorless BLDC motor at PWM operation mode 有权用于在PWM操作模式下驱动无传感器BLDC电机的方法和装置公开(公告)号：US06534938B1
公开(公告)日：2003-03-18
申请号：US09964757
申请日：2001-09-28
申请人： Zhigan Wu , Jin Wang , Jianping Ying
发明人： Zhigan Wu , Jin Wang , Jianping Ying
IPC分类号： H02P506
CPC分类号： H02P6/182
摘要： A control system operates with a PWM speed regulation of a sensorless BLDC motor with a plurality of windings. A hybrid method is present in the invention utilizing BEMF induced in stator windings to indicate the commutation instant and a falling edge detection method to override PWM chopping and commutation noises. The present invention achieves reliable sensorless rotor position detection with relative concise and low cost circuit as well as little software expense. The control device of the present invention includes a comparator for generating the BEMF zero crossing points (ZCP), and means for deriving rotor position information by detecting the falling edge (or rising edge for low-side chopping case) of the generated ZCPs.
摘要翻译： 控制系统利用具有多个绕组的无传感器BLDC电动机的PWM调速来操作。 本发明中存在利用定子绕组中引入的BEMF来指示换向时刻的混合方法和用于覆盖PWM斩波和换向噪声的下降沿检测方法。 本发明实现了可靠的无传感器转子位置检测，具有相对简洁和低成本的电路以及很少的软件费用。 本发明的控制装置包括用于产生BEMF过零点（ZCP）的比较器，以及用于通过检测所生成的ZCP的下降沿（或低侧斩波情况的上升沿）导出转子位置信息的装置。
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2.发明授权Apparatus for detecting current direction in bridge circuits and method thereof 有权用于检测桥式电路中的电流方向的装置及其方法公开(公告)号：US06781385B2
公开(公告)日：2004-08-24
申请号：US10137619
申请日：2002-05-02
申请人： Jianping Ying , Jin Wang , Zhigan Wu
发明人： Jianping Ying , Jin Wang , Zhigan Wu
IPC分类号： G01R3108
CPC分类号： G01R19/14
摘要： The invention relates to an apparatus and a method for detecting a current direction in a PWM converter or an inverter having one or more upper and lower arms, each of which consists of a switching device with an anti-parallel diode. The voltage across the switching device presents a different value and a polarity that depend on the direction of the current flowing through the switching device, wherein the current direction is acquired by sampling this voltage in the period of the trigger signal being on. In a case of small current, this sampled voltage value is relatively large to the flowing current magnitude and is easy to be distinguished. Furthermore, this invention presents a method for obtaining the phase angle between the load current and the output voltage, and judging whether the output current is zero or includes DC component. As a result, this method presents high precision.
摘要翻译： 本发明涉及一种用于检测PWM转换器或具有一个或多个上臂和下臂的逆变器的电流方向的装置和方法，每一个由具有反并联二极管的开关装置组成。 开关器件两端的电压呈现出不同的值和极性，这取决于流过开关器件的电流的方向，其中通过在触发信号导通的时段内对该电压进行采样来获取电流方向。 在小电流的情况下，该采样电压值对于流动电流大小相对较大并且易于区分。 此外，本发明提供了一种用于获得负载电流和输出电压之间的相位角的方法，并且判断输出电流是零还是包括直流分量。 因此，该方法具有高精度。
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公开(公告)号：US06535402B1
公开(公告)日：2003-03-18
申请号：US10194677
申请日：2002-07-12
申请人： Jianping Ying , Zhigan Wu , Jin Wang
发明人： Jianping Ying , Zhigan Wu , Jin Wang
IPC分类号： H02M112
CPC分类号： H02M7/5387 , H02M2001/0009 , H02M2001/385
摘要： The invention relates to the compensation of dead time effect in electronic appliances such as inverters or converters having one or more legs with two complementary switches. The invented method mainly includes following steps providing an initial pulse width modulated (PWM) reference, providing a bias current and detecting the bias current crossing points, providing a dead time compensation signal which is adjusted responsive to the crossing points, and adding the dead time compensation signal to the PWM reference. Hence an adaptive compensation is accomplished independent of types of switching elements and load conditions. A high reliable circuit with low cost is further included as a preferred embodiment of bias current crossing points detection.
摘要翻译： 本发明涉及对诸如具有两个互补开关的一个或多个支脚的逆变器或转换器的电子设备中的死区时间效应的补偿。 本发明的方法主要包括以下步骤：提供初始脉冲宽度调制（PWM）参考，提供偏置电流和检测偏置电流交叉点，提供响应于交叉点调整的死区时间补偿信号，并增加死区时间 补偿信号到PWM参考。 因此，独立于开关元件和负载条件的类型实现自适应补偿。 作为偏置电流交叉点检测的优选实施例，还包括低成本的高可靠性电路。
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公开(公告)号：US11271659B1
公开(公告)日：2022-03-08
申请号：US17001299
申请日：2020-08-24
申请人： Mrinmoy Jana , Jeebak Mitra , Lutz Hans-Joachim Lampe , Jin Wang , Zhuhong Zhang
发明人： Mrinmoy Jana , Jeebak Mitra , Lutz Hans-Joachim Lampe , Jin Wang , Zhuhong Zhang
摘要： A receiver architecture is described for phase noise compensation in the presence of inter-channel interference (ICI) and inter-symbol interference (ISI), particularly for time-frequency packing (TFP) transmissions. The receiver includes a coarse phase noise (PN) estimator, a PN compensation module, an ICI cancellation module, an ISI compensation module, a FEC decoder, and an iterative PN estimator. The iterative PN estimator receives log likelihood ratio (LLR) information from the decoder and provides an iterative PN estimation to the PN compensation module. The decoder also provides LLR to the ISI compensation module, and to at least one other receiver for another subchannel that is immediately adjacent in frequency. The ICI cancellation module receives decoder output from at least one adjacent subchannel, which the ICI cancellation module uses to provide a ICI-cancelled signal.
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公开(公告)号：US11172493B2
公开(公告)日：2021-11-09
申请号：US13424906
申请日：2012-03-20
申请人： Jin Wang , Arty Chandra , John S. Chen , Mohammed Sammour , Stephen E. Terry
发明人： Jin Wang , Arty Chandra , John S. Chen , Mohammed Sammour , Stephen E. Terry
摘要： The present invention is a method and apparatus for resource allocation signaling for grouping user real time services. Uplink signaling for voice activity reporting of each user's transition between an active state and an inactive voice state is sent from a wireless transmit/receive unit to a Node B. Radio resource allocation to users of a wireless communication system varies based on user measurement reporting, a pre-determined pattern such as frequency hopping, or a pseudorandom function. Grouping methods are adjusted to better utilize the voice activity factor, so that statistical multiplexing can be used to more efficiently utilize physical resources.
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9.发明申请公开(公告)号：US20210012911A1
公开(公告)日：2021-01-14
申请号：US17037337
申请日：2020-09-29
申请人： Qiang Wang , Jin Wang , Yong Wang
发明人： Qiang Wang , Jin Wang , Yong Wang
摘要： A unified Internet integration system for a positioning-oriented architecture (POA) comprises a controllable icon positioning information management service (CIPIMS) server; an icon positioning object information bus; at least one icon positioning resource object; at least one network application; at least one network; wherein the POA further comprises at least one unique icon positioning identification number, at least one icon positioning resource, at least one icon positioning resource space management, at least one icon positioning resource management, at least one icon positioning external resource links with Internet protocol address, and at least one icon positioning resource status management; and the method thereof.
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公开(公告)号：US20170357678A1
公开(公告)日：2017-12-14
申请号：US15664152
申请日：2017-07-31
申请人： Qiang Wang , Jin Wang , Xinwei Wang
发明人： Qiang Wang , Jin Wang , Xinwei Wang
CPC分类号： G06F16/2282 , G06F17/245 , G06Q10/10
摘要： Now in this busy world, users heavily rely on the internet to browse over the internet map such as Google map, Mapquest map, Baidu map, QQmap, Gaode map, Soho map etc to find and identify the targets users interested through different markers, the Markers on internet maps are first windows or first doors to enter into internet world to get contact with business entities or business service providers,But so far there is no theory, no system, no way and no approach to differentiate these numerous different kinds of markers or to provide a solution to let users manipulate and control the various markers on the internet map to classify and clarify numerous markers displayed on the internet map after searching, especially in business bustling areas in the metropolis such as New York, London, Tokyo, Hong Kong, Singapore, Shanghai and Beijing etc. Furthermore, there are a lot of markers that have same latitude/same longitude and all markers overlapped each other and user cannot differentiate each others, for example, in one building with same latitude/same longitude on Google map, there are 10 different companies which each of them occupies a different room with different number or suite number in this building, all maps cannot distinguish each of these 10 companies, and on Google map, we can only see ONE marker which is appeared in last, If users want to know details of each company's information, no way.So the necessity and feasibility of classification and recognition of all these overlapped markers come to the stage and become possible.Our invention is to propose an approach and a methodology to solve these kind of issues, further more, we propose a theory to let user manipulate the markers on the internet map with some rules to follow.Our invention is generic and can be used in any internet map on both PC browsers (such as internet explorer, firefox etc) and smartphone for any internet maps such as Google MAp, Baidu Map, Gaode Map, QQ Map and Soho Map etc.Our invention is designed in Android system but can be applicable for Apple IOs system also.Our Android App successfully implements these methodology and concepts, we deployed and tested our Android app in all android smart phone successfully already.Our invention can let users do followings:1. Classify different kinds of markers on the internet map2. Manipulate all different kinds of markers on the internet map3. Manipulation Operations include:[1]. Add markers onto the internet map[2]. Remove markers from the internet map[3]. Distinguish all different markers on the internet map without any confusion[4]. Perform all these operation from any markers on the internet mapOur solution and methodology can let users pinpoint to the main targeted markers without diluting their focus and distracted from concerned target by other trivia, unimportant and unrelated markers, users can concentrate on specific area, special marker group, specific markers without any confusion and distraction by just simple operation invented here, so our invention provides a clear, concise and clean internet map instead of messed up ones.From now on we just use Lat or lat stands for Latitude and Lng or Ing stands for Longitude, ieLat/lat=Latitude;Lng/Ing=Longitude.We also use all markers for all icons/markers, we use maps for all internet maps .We will disclose our invention as follows step by step.
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