-
公开(公告)号：US20090174977A1
公开(公告)日：2009-07-09
申请号：US12297049
申请日：2007-02-13
申请人： Chunhui Zhu , Jingjing Huang , Shudu Liu
发明人： Chunhui Zhu , Jingjing Huang , Shudu Liu
IPC分类号： H02H3/00
CPC分类号： H02H7/1252
摘要： The invention relates to a voltage detection control technology, especially relate to a hardware overvoltage disconnecting circuit wherein a DC power supply module is disconnected from a power network when the AC power network is in the state of overvoltage. The hardware overvoltage disconnecting circuit comprises a disconnecting relay and a voltage detection circuit. The disconnecting relay is connected in series between an AC power network and a power factor correction circuit of a power supply module. A first sampling terminal of the voltage detection circuit samples the voltage of the AC power network between the AC power network and the disconnecting relay, and an output of the voltage detection circuit is connected to a control terminal of the disconnecting relay. When the AC power network is in the state of overvoltage, the disconnecting relay is disconnected and the power supply module is disconnected from the AC power network. When the voltage of the AC power network is normal, the disconnecting relay is connected. The circuit of the present invention is started up before the busbar voltage reaches its extreme value, and the relay can still work even if only the auxiliary power supply is working among all the components of the power supply module. The auxiliary power supply of the module is still in the work state. The cost of the system is reduced.
摘要翻译： 本发明涉及一种电压检测控制技术，特别涉及一种硬件过电压断开电路，其中当电力网络处于过电压状态时，直流电源模块与电力网络断开连接。 硬件过电压断开电路包括断路继电器和电压检测电路。 断路继电器串联连接在交流电源和电源模块的功率因数校正电路之间。 电压检测电路的第一采样端对交流电网和断路继电器之间的交流电网的电压进行采样，并且电压检测电路的输出端连接到断路继电器的控制端。 当交流电网处于过电压状态时，断开继电器断开，电源模块与交流电网断开连接。 当交流电网的电压正常时，断开继电器连接。 本发明的电路在母线电压达到极值之前启动，即使只有辅助电源在电源模块的所有部件中工作，继电器仍能工作。 模块的辅助电源仍处于工作状态。 系统的成本降低了。
-
公开(公告)号：US20090161594A1
公开(公告)日：2009-06-25
申请号：US12337568
申请日：2008-12-17
申请人： Chunhui Zhu , Chiu Ngo
发明人： Chunhui Zhu , Chiu Ngo
IPC分类号： H04H20/71
摘要： A method of multicast routing in a wireless mesh network is provided. One implementation involves maintaining a multicast logical tree having a structure establishing parent-child connectivity relationships between wireless station nodes, wherein each node has access to local connectivity information for its local nodes; and a wireless station node joining a multicast group in the network and becoming the group coordinator. Each multicast group member may join and leave the group at any time utilizing both tree structure and local link state information.
摘要翻译： 提供了一种无线网状网络中组播路由的方法。 一个实现涉及维护具有在无线站节点之间建立父子连接关系的结构的多播逻辑树，其中每个节点具有对其本地节点的本地连接信息的访问; 以及加入网络中的多播组并成为组协调器的无线站节点。 每个组播组成员可以随时使用树结构和本地链路状态信息来加入和离开组。
-
33.发明申请公开(公告)号：US20060274680A1
公开(公告)日：2006-12-07
申请号：US11445192
申请日：2006-06-02
申请人： Chunhui Zhu , Myung-Jong Lee , Jun-Seo Lee , Rakesh Taori , Sung-Won Lee
发明人： Chunhui Zhu , Myung-Jong Lee , Jun-Seo Lee , Rakesh Taori , Sung-Won Lee
摘要： A system and method for controlling congestion using Request-to-Send (RTS) and Clear-to-Send (CTS) in a wireless mesh network are provided. A receiver in a congestion state sets a duration field value of congestion control in a CTS frame and transmits the CTS frame to a sender. In response, the sender retransmits an RTS frame to the receiver without transmitting data, after waiting for an RTS retransmission waiting time period corresponding to the duration field value. The congestion state information is broadcast to neighboring nodes. Therefore, the congestion control system using the CTS frame does not use a separate frame for the congestion control. And, all of the neighboring nodes can participate in the congestion control, increasing the network efficiency.
摘要翻译： 提供了一种用于在无线网状网络中使用请求发送（RTS）和清除发送（CTS）来控制拥塞的系统和方法。 在拥塞状态下的接收机设置CTS帧中拥塞控制的持续时间字段值，并将CTS帧发送给发送者。 作为响应，在等待对应于持续时间字段值的RTS重发等待时间段之后，发送方在发送数据的情况下向接收方重发RTS帧。 拥塞状态信息被广播到相邻节点。 因此，使用CTS帧的拥塞控制系统不使用用于拥塞控制的单独的帧。 并且，所有相邻节点都可以参与拥塞控制，提高网络效率。
-
34.发明授权Method and system for contention avoidance in multi-user multiple-input-multiple-output wireless networks 有权多用户多输入多输出无线网络中的争用避免方法和系统公开(公告)号：US08953578B2
公开(公告)日：2015-02-10
申请号：US12821940
申请日：2010-06-23
申请人： Chunhui Zhu , Clint Chaplin
发明人： Chunhui Zhu , Clint Chaplin
CPC分类号： H04W74/0816
摘要： Wireless medium reservation for simultaneous transmission of multiple downlink spatial streams to multiple receiver wireless stations during a multi-user transmit opportunity over a wireless medium, is provided. Such a reservation includes reserving a transmission period for simultaneously transmitting data from a transmitting station to multiple intended receiving stations on multiple downlink spatial streams over a wireless communication medium. Reserving the transmission period includes transmitting a request-to-send (RTS) frame to the multiple receiving stations, the RTS frame including a receiver address (RA) field comprising compressed addresses for the multiple receiving stations.
摘要翻译： 提供了在通过无线介质的多用户发送机会期间将多个下行链路空间流同时发送到多个接收机无线站的无线介质预留。 这样的预约包括在无线通信介质上保留用于在多个下行链路空间流上同时从发射台向多个预定接收站发送数据的传输周期。 保留传输周期包括向多个接收站发送请求发送（RTS）帧，RTS帧包括包含多个接收站的压缩地址的接收机地址（RA）字段。
-
公开(公告)号：US20120294540A1
公开(公告)日：2012-11-22
申请号：US13109868
申请日：2011-05-17
申请人： Jian Sun , Fang Wen , Chunhui Zhu
发明人： Jian Sun , Fang Wen , Chunhui Zhu
IPC分类号： G06K9/62
CPC分类号： G06F16/583 , G06F16/24578 , G06K9/00677 , G06K9/6219 , G06K9/623
摘要： Rank ordered-based object image clustering may facilitate robust clustering of digital images. The rank order-based clustering of object images may include defining asymmetric distances between each object image and one or more other object images in a set of multiple object images using generated ordered lists. The rank order-based clustering may further include obtaining a rank order distance for each pairing of object images by normalizing the asymmetric distances of corresponding object images. The multiple object images are further clustered into object image clusters based on the rank order distances and adaptive absolute distance.
摘要翻译： 基于排序的对象图像聚类可以促进数字图像的鲁棒聚类。 对象图像的基于秩次的聚类可以包括使用生成的有序列表来定义每个对象图像与一组多个对象图像中的一个或多个其他对象图像之间的不对称距离。 基于秩次的聚类还可以包括通过对相应的对象图像的不对称距离进行归一化来获得每个对象图像配对的秩序距离。 基于等级距离和自适应绝对距离，将多个对象图像进一步聚类到对象图像簇中。
-
公开(公告)号：US20120282941A1
公开(公告)日：2012-11-08
申请号：US13522336
申请日：2010-09-20
申请人： Fei Lu , Shuang Liang , Chunhui Zhu , Jinguo Zhu
发明人： Fei Lu , Shuang Liang , Chunhui Zhu , Jinguo Zhu
摘要： A method for synchronizing user data is provided, which includes: when a User Equipment (UE) moves into a coverage area of a new mobility management unit, an old mobility management unit sends an indication of whether a bearer modification procedure is to be triggered to the new mobility management unit, and the new mobility management unit determines whether to trigger the bearer modification procedure according to the indication. A system for synchronizing user data is further provided. By means of the technical solution of the method and the system, the situation that a Quality of Service (QoS) used by a bearer in the new mobility management unit does not match with a bearer QoS of an updated subscription data when a user equipment moves into a coverage area of a new mobility management unit can be avoided.
摘要翻译： 提供了一种同步用户数据的方法，包括：当用户设备（UE）移动到新的移动性管理单元的覆盖区域时，旧的移动性管理单元发送是否要触发承载修改过程的指示 新的移动性管理单元和新的移动性管理单元根据指示确定是否触发承载修改过程。 还提供用于同步用户数据的系统。 通过该方法和系统的技术方案，当用户设备移动时，新移动性管理单元中的承载使用的服务质量（QoS）与更新的订阅数据的承载QoS不匹配的情况 可以避免进入新的移动管理单元的覆盖区域。
-
公开(公告)号：US08289883B2
公开(公告)日：2012-10-16
申请号：US12337568
申请日：2008-12-17
申请人： Chunhui Zhu , Chiu Ngo
发明人： Chunhui Zhu , Chiu Ngo
摘要： A method of multicast routing in a wireless mesh network is provided. One implementation involves maintaining a multicast logical tree having a structure establishing parent-child connectivity relationships between wireless station nodes, wherein each node has access to local connectivity information for its local nodes; and a wireless station node joining a multicast group in the network and becoming the group coordinator. Each multicast group member may join and leave the group at any time utilizing both tree structure and local link state information.
摘要翻译： 提供了一种无线网状网络中组播路由的方法。 一个实现涉及维护具有在无线站节点之间建立父子连接关系的结构的多播逻辑树，其中每个节点具有对其本地节点的本地连接信息的访问; 以及加入网络中的多播组并成为组协调器的无线站节点。 每个组播组成员可以随时使用树结构和本地链路状态信息来加入和离开组。
-
公开(公告)号：US08284570B2
公开(公告)日：2012-10-09
申请号：US12297044
申请日：2007-02-13
申请人： Chunhui Zhu , Haizhou Zhao , Zhiyu Liu
发明人： Chunhui Zhu , Haizhou Zhao , Zhiyu Liu
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , Y02B70/1433
摘要： A modulation control method and system for a resonance circuit that generally relate to electrical communication technique. In the system, a controlling chip of the resonance circuit is connected to associated controlling means providing voltage matching and resistance control. The controlling means provides controlling parameters to the chip in accordance with input voltage. The controlling chip modulates the resonance circuit accordingly. A phase-shifting pulse width modulation controlling chip or a pulse width modulation controlling chip is connected to a voltage matching module and a resistance controlling module, wherein the voltage matching module matches the voltage ranges and the resistance controlling module adjusts the equivalent resistance of RT terminal to the external as the voltage of loop circuit changes accordingly. In the method, a controlling chip is used to realize a controlling mode of frequency modulation, pulse width modulation, and combination thereof with respect to the resonance circuit through the voltage matching module and the resistance controlling module. The present invention is advantageous in low cost and high efficiency.
摘要翻译： 一种谐振电路的调制控制方法和系统，其通常涉及电气通信技术。 在该系统中，谐振电路的控制芯片连接到提供电压匹配和电阻控制的相关控制装置。 控制装置根据输入电压向芯片提供控制参数。 控制芯片相应地调制谐振电路。 一个移相脉宽调制控制芯片或一个脉冲宽度调制控制芯片连接到电压匹配模块和电阻控制模块，其中电压匹配模块匹配电压范围，电阻控制模块调整RT端子的等效电阻 由于环路电路的电压相应地变化到外部。 在该方法中，通过电压匹配模块和电阻控制模块，使用控制芯片实现频率调制，脉冲宽度调制以及相对于谐振电路的组合的控制模式。 本发明在低成本和高效率方面是有利的。
-
39.发明授权Method and system of radio frequency (RF) power transmission in a wireless network 有权无线网络中射频（RF）功率传输的方法和系统公开(公告)号：US08194583B2
公开(公告)日：2012-06-05
申请号：US12329786
申请日：2008-12-08
申请人： Chunhui Zhu , Chiu Ngo
发明人： Chunhui Zhu , Chiu Ngo
摘要： A method and system of radio frequency (RF) power transmission among multiple wireless stations is provided. Control signals for switching a receiving station between a power reception mode and a data reception mode are generated. The control signals provide switching information about which of the modes to switch to, and timing of the switching. In the data reception mode, the receiving station processes an RF transmission from a sending station as a data communication. In the power reception mode the receiving station processes the RF transmission as energy radiation for powering the receiving station. One type of control signal for power mode switching is generated at the MAC layer of a receiving station and sent to the PHY layer of that station for power mode switching. Another type is RTS/CTS control signal exchanged between the sending and receiving stations.
摘要翻译： 提供了多个无线站之间的射频（RF）功率传输的方法和系统。 产生用于在受电模式和数据接收模式之间切换接收站的控制信号。 控制信号提供关于切换哪种模式的切换信息，以及切换的定时。 在数据接收模式中，接收站处理来自发送站的RF传输作为数据通信。 在电力接收模式中，接收站处理作为为接收站供电的能量辐射的RF传输。 一种用于功率模式切换的控制信号在接收站的MAC层产生，并发送到该站的PHY层进行功率模式切换。 另一种类型是在发送站和接收站之间交换的RTS / CTS控制信号。
-
公开(公告)号：US20120135701A1
公开(公告)日：2012-05-31
申请号：US13257932
申请日：2009-11-04
申请人： Chunhui Zhu , Jing Wang , Shuang Liang
发明人： Chunhui Zhu , Jing Wang , Shuang Liang
CPC分类号： H04W68/00 , H04W4/90 , H04W76/50 , H04W84/045
摘要： The present disclosure discloses a method for paging an emergency service user. When a mobility management unit is configured to support the paging optimization in a core network, the mobility management unit does not perform paging optimization when a UE has an emergency bearer service. That is to say, a paging message is sent to all base stations (including the CSG-mode home base station that does not authorize the UE) in the paging tracking list registered by the UE. A core network gateway can notify the mobility management unit of whether the UE has an emergency bearer service. Alternatively, the mobility management unit configured to use the paging optimization, after learning that the service data is to be sent to the UE, checks the current service type of the UE to determine whether the UE has an emergency bearer service. Accordingly, the present disclosure further discloses a system for paging an emergency service user. The present disclosure solves the problem that the mobility management unit and home base station gateway using the paging optimization cannot page the UE which uses the emergency service, so as to increase the success rate of establishing communications and improve the user experience.
摘要翻译： 本公开公开了一种用于寻呼紧急服务用户的方法。 当移动性管理单元被配置为支持核心网络中的寻呼优化时，当UE具有紧急承载服务时，移动性管理单元不执行寻呼优化。 也就是说，在由UE登记的寻呼跟踪列表中，向所有基站（包括不授权UE的CSG模式家庭基站）发送寻呼消息。 核心网关可以通知移动性管理单元UE是否具有紧急承载业务。 或者，移动性管理单元被配置为在学习到要向UE发送业务数据之后使用寻呼优化来检查UE的当前业务类型，以确定UE是否具有紧急承载业务。 因此，本公开进一步公开了一种用于寻呼紧急服务用户的系统。 本公开解决了使用寻呼优化的移动性管理单元和家庭基站网关不能寻呼使用紧急服务的UE，从而提高建立通信的成功率并提高用户体验的问题。
-
-
-
-
-
-
-
-
-
搜索结果
42 条记录 (耗时 0.049 秒)
