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1. 发明申请

US20110278953A1 CONTROL METHOD FOR SOFT SWITCH CIRCUIT IN SWITCH POWER SOURCE 有权
标题翻译：开关电源软开关电路的控制方法
公开(公告)号：US20110278953A1
公开(公告)日：2011-11-17
申请号：US12676639
申请日：2008-09-05
申请人： Chuntao Zhang , Xiaofei Zhang , Xueli Xiao
发明人： Chuntao Zhang , Xiaofei Zhang , Xueli Xiao
IPC分类号： H01H33/59
CPC分类号： H02M7/538 , H02M2007/4811 , Y02B70/1441 , Y10T307/76
摘要： The present invention discloses a control method for a soft switch circuit in a switch power source, which generates an alternating primary power filter current by controlling first and second primary power switching devices to be closed and opened, and generates an intermittent alternating resonant current in the same direction as the primary power filter current in a resonant branch by controlling forward and backward auxiliary switching devices to be closed and opened to thereby achieve closing of the first and second primary power switching devices at a zero voltage, and which generates a balance current with the same magnitude as and in the opposite direction to the resonant current in the resonant branch in at least a period of time during the resting of the resonant current by further controlling the forward and backward auxiliary switching devices to be closed and opened to thereby achieve an average current of zero across the resonant branch in a switching cycle. Without any additional balance circuit, this control method can address the imbalance problem of output power of the positive and negative direct current input voltage sources in a soft switch circuit of an existing switch power source.
摘要翻译：本发明公开了一种用于开关电源中的软开关电路的控制方法，其通过控制第一和第二主电源开关器件闭合和断开来产生交流的一次电力滤波器电流，并且在所述开关电源中产生间歇的交流谐振电流通过控制向前和向后的辅助开关装置闭合和断开来共振分支中的主要功率滤波器电流相同的方向，从而在零电压下实现第一和第二主要功率开关装置的闭合，并且其产生与通过进一步控制正向和反向辅助开关装置关闭和打开，在谐振电流静止期间的至少一段时间内与谐振支路中的谐振电流相同的幅度和相反方向，从而实现在开关周期中谐振支路的平均电流为零。没有任何额外的平衡电路，该控制方法可以解决现有开关电源的软开关电路中正，负直流输入电压源的输出功率不平衡问题。

2. 发明授权

US08416592B2 Control method for soft switch circuit in switch power supply 有权
标题翻译：开关电源中软开关电路的控制方法
公开(公告)号：US08416592B2
公开(公告)日：2013-04-09
申请号：US12678030
申请日：2008-09-08
申请人： Chuntao Zhang , Xiaofei Zhang , Xueli Xiao
发明人： Chuntao Zhang , Xiaofei Zhang , Xueli Xiao
IPC分类号： H02H7/122 , H02M3/335
CPC分类号： H02M7/537 , H02M3/158 , Y02B70/1425 , Y02B70/1441 , Y10T307/76
摘要： The present invention relates to a control method for a soft switch circuit in a switch power supply, which controls first and second main power switch devices to be turned on and turned off constantly to generate an alternating main power filter current, and controls forward and backward auxiliary switch devices to be turned on and turned off to generate an intermittent alternating resonant current across a resonant branch in the same direction as the main power filter current to thereby achieve zero-voltage turn-on of the first and second main power switch devices; and further controls the forward and backward auxiliary switch devices to be turned on and turned off to generate compensation currents across the resonant branch in the opposite direction to the alternating main power filter current in at least a period of time during resting of the resonant current to thereby accomplish a charging and discharging process of resonant capacitors in a dead time. Thus, a freewheeling diode can be turned on normally, so that it is possible to avoid a damage to the devices due to an impact current and a spark voltage resulting at zero crossing of the current in the soft switch circuit.
摘要翻译：本发明涉及一种用于开关电源中的软开关电路的控制方法，该控制方法控制第一和第二主电源开关器件不断接通和断开以产生交替的主电力滤波器电流，并且控制向前和向后辅助开关装置导通和关断，以与主电力滤波器电流相同的方向在谐振支路上产生间歇的交流谐振电流，从而实现第一和第二主电源开关装置的零电压接通; 并且进一步控制正向和反向辅助开关器件导通和截止，以在至少一段时间内在谐振电流休止期间在与交流主功率滤波器电流相反的方向上跨谐振支路产生补偿电流从而在死区时间内实现谐振电容器的充放电过程。因此，续流二极管可以正常导通，使得可以避免由于冲击电流和导致软开关电路中的电流过零的火花电压而对器件的损坏。

3. 发明申请

US20110260922A1 MAPPING LOCATIONS BASED ON RECEIVED SIGNAL STRENGTHS 审中-公开
标题翻译：基于接收信号强度的映射位置
公开(公告)号：US20110260922A1
公开(公告)日：2011-10-27
申请号：US12764476
申请日：2010-04-21
申请人： Chuntao Zhang , Thomas S. Babin , Timothy J. Collins , Julius S. Gyorfi , Tom Mathew , Swee M. Mok
发明人： Chuntao Zhang , Thomas S. Babin , Timothy J. Collins , Julius S. Gyorfi , Tom Mathew , Swee M. Mok
IPC分类号： G01S3/02
CPC分类号： G01S5/0252 , G01S11/06 , H04W64/00
摘要： Disclosed is a system for updating an RSSI-based map. A scanning devices notes which tags are seen during a scan and measures a “proxy distance” from the scanning device to each tag. When the scan is initiated, the scanning device measures the RSSIs from the local WAPs. The current location of the scanning device is determined by triangulating from the proxy distances of the scanned tags. That location is then correlated with the contemporaneously measured RSSIs. The correlation is used to update the RSSI-based map. In some embodiments, it is not the scanning device that measures the RSSIs. Instead, the WAPs measure the RSSIs from the scanning device whenever the scanning device transmits the results of a scan. In some embodiments, the operator of the mapped environment places scannable tags at fixed locations. Scans of these fixed-location tags are especially useful when determining the current location of the scanning device.
摘要翻译：公开了一种用于更新基于RSSI的地图的系统。扫描设备注意到扫描期间看到哪些标签，并测量从扫描设备到每个标签的“代理距离”。当扫描开始时，扫描设备测量来自本地WAP的RSSI。扫描装置的当前位置通过从扫描标签的代理距离三角测量来确定。然后该位置与同时测量的RSSI相关。相关性用于更新基于RSSI的地图。在一些实施例中，不是测量RSSI的扫描设备。相反，每当扫描设备发送扫描结果时，WAP就会从扫描设备测量RSSI。在一些实施例中，映射环境的操作者将可扫描标签放置在固定位置。当确定扫描设备的当前位置时，这些固定位置标签的扫描特别有用。

4. 发明申请

US20070091858A1 Method and apparatus for tracking unauthorized nodes within a network 审中-公开
标题翻译：用于跟踪网络内未授权节点的方法和装置
公开(公告)号：US20070091858A1
公开(公告)日：2007-04-26
申请号：US11257602
申请日：2005-10-24
申请人： Xiaohua Wu , Thomas Babin , Guoshu Song , Joseph Tomase , Yinyan Wang , Chuntao Zhang
发明人： Xiaohua Wu , Thomas Babin , Guoshu Song , Joseph Tomase , Yinyan Wang , Chuntao Zhang
IPC分类号： H04Q7/24
CPC分类号： H04W12/08 , H04L63/10 , H04L63/107 , H04L63/1408 , H04W12/12 , H04W84/18
摘要： A network (100) will receive requests from unauthorized nodes that wish to join/access the network. While access may be denied for the unauthorized nodes, the network will continue to monitor these nodes for location information. The unauthorized nodes will be located, and their location will be monitored.
摘要翻译：网络（100）将接收来自未加入/访问网络的未授权节点的请求。虽然对于未经授权的节点可能拒绝访问，但网络将继续监视这些节点的位置信息。将定位未授权的节点，并监视其位置。

5. 发明授权

US08699253B2 Control method for soft switch circuit in switch power source 有权
标题翻译：开关电源软开关电路的控制方法
公开(公告)号：US08699253B2
公开(公告)日：2014-04-15
申请号：US12676639
申请日：2008-09-05
申请人： Chuntao Zhang , Xiaofei Zhang , Xueli Xiao
发明人： Chuntao Zhang , Xiaofei Zhang , Xueli Xiao
IPC分类号： H02M7/5387 , G05F1/40
CPC分类号： H02M7/538 , H02M2007/4811 , Y02B70/1441 , Y10T307/76
摘要： The present invention discloses a control method for a soft switch circuit in a switch power source, which generates an alternating primary power filter current by controlling first and second primary power switching devices to be closed and opened, and generates an intermittent alternating resonant current in the same direction as the primary power filter current in a resonant branch by controlling forward and backward auxiliary switching devices to be closed and opened to thereby achieve closing of the first and second primary power switching devices at a zero voltage, and which generates a balance current with the same magnitude as and in the opposite direction to the resonant current in the resonant branch in at least a period of time during the resting of the resonant current by further controlling the forward and backward auxiliary switching devices to be closed and opened to thereby achieve an average current of zero across the resonant branch in a switching cycle. Without any additional balance circuit, this control method can address the imbalance problem of output power of the positive and negative direct current input voltage sources in a soft switch circuit of an existing switch power source.
摘要翻译：本发明公开了一种用于开关电源中的软开关电路的控制方法，其通过控制第一和第二主电源开关器件闭合和断开来产生交流的一次电力滤波器电流，并且在所述开关电源中产生间歇的交流谐振电流通过控制向前和向后的辅助开关装置闭合和断开来共振分支中的主要功率滤波器电流相同的方向，从而在零电压下实现第一和第二主要功率开关装置的闭合，并且其产生与通过进一步控制正向和反向辅助开关装置关闭和打开，在谐振电流静止期间的至少一段时间内与谐振支路中的谐振电流相同的幅度和相反方向，从而实现在开关周期中谐振支路的平均电流为零。没有任何额外的平衡电路，该控制方法可以解决现有开关电源的软开关电路中正，负直流输入电压源的输出功率不平衡问题。

6. 发明授权

US08600406B2 System and method for location determination for mobile clients 有权
标题翻译：用于移动客户端的位置确定的系统和方法
公开(公告)号：US08600406B2
公开(公告)日：2013-12-03
申请号：US12592447
申请日：2009-11-25
申请人： Shaowei Pan , Xiaohua Wu , Chuntao Zhang
发明人： Shaowei Pan , Xiaohua Wu , Chuntao Zhang
IPC分类号： H04W24/00
CPC分类号： G01S19/48 , G01S19/10
摘要： A first position (104) of the mobile client is determined at least in part by utilizing first signals received from at least one first signal source. The first signal source operates in a first location determination system (114). A second position (106) of at least one second signal source (120) is determined by utilizing both the determined first position of the mobile client and second signals received from the at least one second signal source (120). The second signal source (120) operates in a second location determination system. A third position (116) of the mobile client is determined utilizing the second signal source (120).
摘要翻译：至少部分地通过利用从至少一个第一信号源接收的第一信号来确定移动客户端的第一位置（104）。第一信号源在第一位置确定系统（114）中操作。通过利用确定的移动客户端的第一位置和从至少一个第二信号源（120）接收的第二信号来确定至少一个第二信号源（120）的第二位置（106）。第二信号源（120）在第二位置确定系统中操作。使用第二信号源（120）确定移动客户端的第三位置（116）。

7. 发明申请

US20120238293A9 System and method for location determination for mobile clients 有权
标题翻译：用于移动客户端的位置确定的系统和方法
公开(公告)号：US20120238293A9
公开(公告)日：2012-09-20
申请号：US12592447
申请日：2009-11-25
申请人： Shaowei Pan , Xiaohua Wu , Chuntao Zhang
发明人： Shaowei Pan , Xiaohua Wu , Chuntao Zhang
IPC分类号： H04W64/00
CPC分类号： G01S19/48 , G01S19/10
摘要： A first position (104) of the mobile client is determined at least in part by utilizing first signals received from at least one first signal source. The first signal source operates in a first location determination system (114). A second position (106) of at least one second signal source (120) is determined by utilizing both the determined first position of the mobile client and second signals received from the at least one second signal source (120). The second signal source (120) operates in a second location determination system. A third position (116) of the mobile client is determined utilizing the second signal source (120).
摘要翻译：至少部分地通过利用从至少一个第一信号源接收的第一信号来确定移动客户端的第一位置（104）。第一信号源在第一位置确定系统（114）中操作。通过利用所确定的移动客户端的第一位置和从至少一个第二信号源（120）接收的第二信号来确定至少一个第二信号源（120）的第二位置（106）。第二信号源（120）在第二位置确定系统中操作。使用第二信号源（120）确定移动客户端的第三位置（116）。

8. 发明申请

US20090197613A1 METHOD AND APPARATUS FOR DETERMINING THE LOCATION OF A NODE IN A WIRELESS SYSTEM 审中-公开
标题翻译：用于确定无线系统中节点位置的方法和装置
公开(公告)号：US20090197613A1
公开(公告)日：2009-08-06
申请号：US12023220
申请日：2008-01-31
申请人： Xiaohua Wu , Thomas S. Babin , Goushu Song , Yinyan Wang , Chuntao Zhang
发明人： Xiaohua Wu , Thomas S. Babin , Goushu Song , Yinyan Wang , Chuntao Zhang
IPC分类号： H04Q7/20
CPC分类号： H04W8/30
摘要： A method and apparatus for determining the location of a node within a wireless communication system is provided herein. In order to determine the location of a node, a series of GSM network measurement reports (NMRs) received at multiple base stations are analyzed by location-finding equipment. Multiple reports from the same mobile unit are analyzed for their received signal strength and multiple location estimates are then determined for the node. The location estimates are then averaged and weighted to determine an accurate location estimate for the node.
摘要翻译：本文提供了一种用于确定无线通信系统内的节点的位置的方法和装置。为了确定节点的位置，通过位置查找设备分析了在多个基站接收的一系列GSM网络测量报告（NMR）。分析来自相同移动单元的多个报告的接收信号强度，然后确定节点的多个位置估计。然后对位置估计进行平均和加权，以确定节点的准确位置估计。

9. 发明授权

US08215550B2 Orienting a scanning device with respect to a target location 有权
标题翻译：针对目标位置定向扫描设备
公开(公告)号：US08215550B2
公开(公告)日：2012-07-10
申请号：US12641570
申请日：2009-12-18
申请人： Swee M. Mok , Thomas S. Babin , Timothy J. Collins , Julius S. Gyorfi , Tom Mathew , Chuntao Zhang
发明人： Swee M. Mok , Thomas S. Babin , Timothy J. Collins , Julius S. Gyorfi , Tom Mathew , Chuntao Zhang
IPC分类号： G06F19/00 , G06Q30/00 , G06Q90/00
CPC分类号： G06K17/00 , G06K2017/0051 , G06K2207/1011
摘要： Disclosed is a method for a scanning device to tell its user how to best orient the scanning device to scan a target location. The user approaches the target location and initiates a scan. The results of the scan are analyzed and compared to information about the target location. Based on the analysis, the user is told how to re-orient the scanning device, if that is necessary to achieve an acceptable re-scan of the target location. In a preferred embodiment, a screen on the scanning device presents a two-dimensional map based on the scan results and on the known relative locations of the target location and of nearby non-target locations. Locations on the map are highlighted to tell the user the results of the scan and to direct him to re-orient the scanning device if necessary.
摘要翻译：公开了一种用于扫描设备告诉其用户如何最好地定向扫描设备以扫描目标位置的方法。用户接近目标位置并启动扫描。分析扫描结果并将其与目标位置信息进行比较。基于分析，告诉用户如何重新定向扫描设备，如果这是必要的，以实现目标位置的可接受的重新扫描。在优选实施例中，扫描装置上的屏幕基于扫描结果以及目标位置和附近的非目标位置的已知相对位置呈现二维图。突出显示地图上的位置，告诉用户扫描的结果，并指导他重新定向扫描设备（如有必要）。

10. 发明申请

US20110147455A1 ORIENTING A SCANNING DEVICE WITH RESPECT TO A TARGET LOCATION 有权
标题翻译：针对目标位置定向扫描设备
公开(公告)号：US20110147455A1
公开(公告)日：2011-06-23
申请号：US12641570
申请日：2009-12-18
申请人： Swee M. Mok , Thomas S. Babin , Timothy J. Collins , Julius S. Gyorfi , Tom Mathew , Chuntao Zhang
发明人： Swee M. Mok , Thomas S. Babin , Timothy J. Collins , Julius S. Gyorfi , Tom Mathew , Chuntao Zhang
IPC分类号： G06Q30/00 , G06K7/00
CPC分类号： G06K17/00 , G06K2017/0051 , G06K2207/1011
摘要： Disclosed is a method for a scanning device to tell its user how to best orient the scanning device to scan a target location. The user approaches the target location and initiates a scan. The results of the scan are analyzed and compared to information about the target location. Based on the analysis, the user is told how to re-orient the scanning device, if that is necessary to achieve an acceptable re-scan of the target location. In a preferred embodiment, a screen on the scanning device presents a two-dimensional map based on the scan results and on the known relative locations of the target location and of nearby non-target locations. Locations on the map are highlighted to tell the user the results of the scan and to direct him to re-orient the scanning device if necessary.
摘要翻译：公开了一种用于扫描设备告诉其用户如何最好地定向扫描设备以扫描目标位置的方法。用户接近目标位置并启动扫描。分析扫描结果并将其与目标位置信息进行比较。基于分析，告诉用户如何重新定向扫描设备，如果这是必要的，以实现目标位置的可接受的重新扫描。在优选实施例中，扫描装置上的屏幕基于扫描结果以及目标位置和附近的非目标位置的已知相对位置呈现二维图。突出显示地图上的位置，告诉用户扫描的结果，并指导他重新定向扫描设备（如有必要）。

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