专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20120214534A1 METHOD AND SYSTEM OF RADIO FREQUENCY (RF) POWER TRANSMISSION IN A WIRELESS NETWORK 审中-公开
标题翻译：无线网络中无线电频率（RF）功率传输的方法与系统
公开(公告)号：US20120214534A1
公开(公告)日：2012-08-23
申请号：US13464802
申请日：2012-05-04
申请人： Chunhui Zhu , Chiu Ngo
发明人： Chunhui Zhu , Chiu Ngo
IPC分类号： H04W92/18 , H02J17/00 , H04W84/12
CPC分类号： H02J50/20 , G08C17/02 , H02J7/025 , H02J17/00 , H02J50/40 , H02J50/80
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。

2. 发明申请

US20110317630A1 METHOD AND SYSTEM FOR CONTENTION AVOIDANCE IN MULTI-USER MULTIPLE-INPUT-MULTIPLE-OUTPUT WIRELESS NETWORKS 有权
标题翻译：多用户多输入多输出无线网络中避免异常的方法和系统
公开(公告)号：US20110317630A1
公开(公告)日：2011-12-29
申请号：US12821940
申请日：2010-06-23
申请人： Chunhui Zhu , Clint Chaplin
发明人： Chunhui Zhu , Clint Chaplin
IPC分类号： H04W4/00
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。

3. 发明申请

US20100142423A1 METHOD AND SYSTEM OF RADIO FREQUENCY (RF) POWER TRANSMISSION IN A WIRELESS NETWORK 有权
标题翻译：无线网络中无线电频率（RF）功率传输的方法与系统
公开(公告)号：US20100142423A1
公开(公告)日：2010-06-10
申请号：US12329786
申请日：2008-12-08
申请人： Chunhui Zhu , Chiu Ngo
发明人： Chunhui Zhu , Chiu Ngo
IPC分类号： G08C17/00
CPC分类号： H02J50/20 , G08C17/02 , H02J7/025 , H02J17/00 , H02J50/40 , H02J50/80
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。

4. 发明申请

US20050135379A1 Methods and apparatuses for routing data in a personal area network 有权
标题翻译：用于在个人区域网络中路由数据的方法和装置
公开(公告)号：US20050135379A1
公开(公告)日：2005-06-23
申请号：US10882808
申请日：2004-07-01
申请人： Edgar Callaway , Lance Hester , Vernon Allen , Jasmeet Chhabra , Lakshman Krishnamurthy , Ralph Kling , Zafer Sahinoglu , Philip Orlik , Phil Jamieson , Phil Rudland , Zachary Smith , Myung Lee , Xuhui Hu , Yong Liu , Chunhui Zhu
发明人： Edgar Callaway , Lance Hester , Vernon Allen , Jasmeet Chhabra , Lakshman Krishnamurthy , Ralph Kling , Zafer Sahinoglu , Philip Orlik , Phil Jamieson , Phil Rudland , Zachary Smith , Myung Lee , Xuhui Hu , Yong Liu , Chunhui Zhu
IPC分类号： H04L1/00 , H04L12/28 , H04L12/56
CPC分类号： H04L45/48 , H04L45/52 , H04W40/02 , H04W40/24 , H04W84/10 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y02D70/30
摘要： The invention is a routing method for data in a personal area network. The personal area network includes a plurality of nodes. The method includes receiving a frame at a node, determining whether the node contains a routing table entry for the frame destination, and when the node contains a routing table entry, determining a route for the frame based on a first routing protocol. The method further includes, when the node does not contain a routing table entry for the frame destination, determining whether a route should be discovered for the frame destination, and when a route should not be discovered, determining a route for the frame based on a second routing protocol.
摘要翻译：本发明是用于个人区域网络中的数据的路由方法。个人区域网络包括多个节点。该方法包括在节点处接收帧，确定节点是否包含用于帧目的地的路由表条目，以及当节点包含路由表条目时，基于第一路由协议来确定该帧的路由。该方法还包括：当节点不包含用于帧目的地的路由表条目时，确定是否应为帧目的地发现路由，并且当不发现路由时，基于第二路由协议。

5. 发明授权

US09655006B2 System and method for controlling congestion in wireless mesh networks 有权
公开(公告)号：US09655006B2
公开(公告)日：2017-05-16
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
IPC分类号： H04W28/10 , H04W74/08 , H04W84/18
CPC分类号： H04W28/10 , H04W74/08 , H04W84/18
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.

6. 发明授权

US09077723B2 Method, mobile management unit and gateway for restricting MTC device to access and communicate 有权
标题翻译：方法，移动管理单元和网关，用于限制MTC设备的访问和通信
公开(公告)号：US09077723B2
公开(公告)日：2015-07-07
申请号：US13258556
申请日：2010-11-04
申请人： Mian Li , Fei Lu , Chunhui Zhu , Shuang Liang , Baoguo Xie
发明人： Mian Li , Fei Lu , Chunhui Zhu , Shuang Liang , Baoguo Xie
IPC分类号： H04M11/04 , H04M11/00 , H04M1/66 , H04M1/68 , H04M3/16 , H04M1/00 , H04L29/06 , H04W48/02 , H04W4/00 , H04W12/08
CPC分类号： H04L65/102 , H04W4/70 , H04W12/08 , H04W48/02 , H04W84/042 , H04W88/16
摘要： A method, a mobility management unit and a gateway unit for restricting access and communication of a machine type communication (MTC) device are provided by the present invention. The method includes: a mobility management unit judging whether an access request or a service request of the MTC device is currently in a permission period according to the permission period of the MTC device; when the access request or the service request is not in the permission period, rejecting the access request or service request of the MTC device and notifying the MTC device of the rejection cause and/or the permission period at a meantime. The present invention can ensure that the MTC device only communicates in the permission period, and the MTC device is restricted to access the network or communicate in the non-permission period according to the requirement of the operator.
摘要翻译：本发明提供一种用于限制机器型通信（MTC）设备的接入和通信的方法，移动性管理单元和网关单元。该方法包括：移动性管理单元，根据MTC设备的许可期间判断MTC设备的接入请求或业务请求当前是否处于允许期间; 当访问请求或服务请求不在许可期间时，拒绝MTC设备的访问请求或服务请求，并在此期间向MTC设备通知拒绝原因和/或许可期限。本发明可以确保MTC设备仅在许可期间进行通信，并且根据操作者的要求，限制MTC设备接入网络或者在非允许时段进行通信。

7. 发明授权

US08843102B2 Method and system for paging an emergency service user 有权
标题翻译：用于寻呼紧急服务用户的方法和系统
公开(公告)号：US08843102B2
公开(公告)日：2014-09-23
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
IPC分类号： H04W4/00 , H04W68/00 , H04M11/04 , H04W76/00 , H04W4/22
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。

8. 发明授权

US08406014B2 Circuit for adjusting the output voltage for a resonant DC/DC converter 有权
标题翻译：用于调整谐振DC / DC转换器的输出电压的电路
公开(公告)号：US08406014B2
公开(公告)日：2013-03-26
申请号：US12087278
申请日：2006-12-29
申请人： Zhiyu Liu , Chunhui Zhu , Haizhou Zhao
发明人： Zhiyu Liu , Chunhui Zhu , Haizhou Zhao
IPC分类号： H02M3/335
CPC分类号： H02M3/337 , H02M1/4241 , H02M3/3376 , H02M2001/0058 , Y02B70/126 , Y02B70/1433 , Y02B70/1491
摘要： A method and circuit for controlling a resonant DC/DC converter which adjusts an output voltage by changing a turn-on frequency of input switch devices of a resonant circuit of the converter. The method extends the range of the output voltage of the resonant circuit by adjusting the duty ratio of the switch devices based on the feedback signal of the load circuit. The method and circuit uses two modes to control resonance of the DC/DC converter-frequency modulation and frequency modulation plus pulse width modulation. Frequency modulation is used when the operating frequency of the power supply is low. Frequency modulation plus pulse width modulation is used when the operating frequency of the power supply is too high.
摘要翻译：一种用于控制谐振DC / DC转换器的方法和电路，其通过改变转换器的谐振电路的输入开关装置的接通频率来调节输出电压。该方法通过基于负载电路的反馈信号调整开关器件的占空比来扩展谐振电路的输出电压的范围。该方法和电路使用两种模式来控制DC / DC转换器的频率调制和频率调制加脉冲宽度调制的谐振。当电源的工作频率低时，使用频率调制。当电源的工作频率太高时，使用频率调制加脉宽调制。

9. 发明申请

US20120207071A1 ENHANCED POWER SAVE MULTI-POLL (PSMP) PROTOCOL FOR MULTI-USER MIMO BASED WIRELESS LOCAL AREA NETWORKS 审中-公开
标题翻译：用于多用户MIMO的无线局域网的增强功率节省多POLL（PSMP）协议
公开(公告)号：US20120207071A1
公开(公告)日：2012-08-16
申请号：US13397628
申请日：2012-02-15
申请人： Chunhui Zhu , Osama Aboul-Magd , Youngsoo Kim
发明人： Chunhui Zhu , Osama Aboul-Magd , Youngsoo Kim
IPC分类号： H04W52/02 , G08C17/02
CPC分类号： H04W52/0206 , H04B7/0452 , Y02D70/142 , Y02D70/444
摘要： Wireless communication in a wireless communication system, comprises maintaining data blocks at a wireless transmitting station for transmission to multiple wireless receiving stations over a shared wireless communication medium, and simultaneously transmitting data blocks from the transmitting station over multiple spatial streams to multiple destination wireless receiving stations in a power save multi-poll (PSMP) sequence, via the wireless communication medium.
摘要翻译：无线通信系统中的无线通信包括维持无线发射站处的数据块，以通过共享的无线通信介质传输到多个无线接收站，同时通过多个空间流将数据块从发射站发射到多个目的地无线接收站在节电多轮询（PSMP）序列中，经由无线通信介质。

10. 发明申请

US20120140368A1 Hardware Overvoltage Disconnecting Circuit 有权
标题翻译：硬件过压断开电路
公开(公告)号：US20120140368A1
公开(公告)日：2012-06-07
申请号：US13323893
申请日：2011-12-13
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： 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 circuit includes 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.
摘要翻译：一种硬件过电压断开电路，其中，当所述AC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。该电路包括断开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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式