METHOD FOR DETERMINING SUPERFRAME FOR BEACON SCHEDULING
    41.
    发明申请
    METHOD FOR DETERMINING SUPERFRAME FOR BEACON SCHEDULING 失效
    用于确定BEACON调度超帧的方法

    公开(公告)号:US20090274127A1

    公开(公告)日:2009-11-05

    申请号:US12517556

    申请日:2007-10-24

    IPC分类号: H04J3/00

    摘要: Provided is a method for determining superframe to efficiently perform beacon scheduling by allocating superframe lengths which are different according to a routing depth of sensor nodes in a ZigBee based wireless sensor network. The method for determining a superframe for beacon scheduling, includes the steps of: receiving a beacon from a neighboring node and grasping information on a superframe used by the neighboring nodes; and determining a transmission time and a length of own superframe based on superframe information of the grasped neighboring node.

    摘要翻译: 提供了一种通过分配根据基于ZigBee的无线传感器网络中的传感器节点的路由深度而不同的超帧长度来确定超帧以有效地执行信标调度的方法。 用于确定信标调度的超帧的方法包括以下步骤:从相邻节点接收信标并且掌握由相邻节点使用的超帧的信息; 并且基于所掌握的相邻节点的超帧信息来确定自身超帧的传输时间和长度。

    PIFA and RFID tag using the same
    42.
    发明授权
    PIFA and RFID tag using the same 有权
    PIFA和RFID标签使用相同

    公开(公告)号:US07504998B2

    公开(公告)日:2009-03-17

    申请号:US11297687

    申请日:2005-12-07

    IPC分类号: H01Q1/38

    摘要: Provided is a planar inverted-F antenna (PIFA) which has a Co-Planar Waveguide (CPW) feeding structure and can be attached to a metal surface, and an RFID tag using the same. The PIFA includes a radiation patch layer; a Co-Planar Waveguide (CPW) feeding layer; a feeding probe; and a short-circuit. The CPW feeding layer includes a feeding means and a ground surface. The feeding probe electrically connects the radiation patch layer and the feeding means and provides a Radio Frequency (RF) signal to be radiated to the radiation patch layer. The short-circuiting means short-circuits the radiation patch layer and the ground surface through the dielectric layer. The PIFA can be applied to a passive RFID tag. Impedance matching between the antenna and the RFID chip is possible. Also, the PIFA can easily control resonant frequency of the antenna and reactance.

    摘要翻译: 提供了具有共平面波导(CPW)馈送结构并且可以附着到金属表面的平面倒F天线(PIFA)和使用其的RFID标签。 PIFA包括辐射贴片层; 共平面波导(CPW)馈电层; 喂食探针; 和短路。 CPW馈送层包括馈送装置和接地表面。 馈送探针将辐射贴片层和馈送装置电连接并提供要辐射到辐射贴片层的射频(RF)信号。 短路装置通过介电层使辐射贴片层和地表面短路。 PIFA可应用于无源RFID标签。 天线和RFID芯片之间的阻抗匹配是可能的。 此外,PIFA可以轻松控制天线的谐振频率和电抗。

    Antenna Using Proximity-Coupling Between Radiation Patch and Short-Ended Feed Line, Rfid Tag Employing the Same, and Antenna Impedance Matching Method Thereof
    43.
    发明申请
    Antenna Using Proximity-Coupling Between Radiation Patch and Short-Ended Feed Line, Rfid Tag Employing the Same, and Antenna Impedance Matching Method Thereof 审中-公开
    使用辐射贴片和短路馈线之间的接近耦合的天线,使用它的Rfid标签和天线阻抗匹配方法

    公开(公告)号:US20080309578A1

    公开(公告)日:2008-12-18

    申请号:US12162069

    申请日:2007-02-01

    IPC分类号: H01Q1/38 H01Q1/50 G08B13/14

    CPC分类号: H01Q1/2208 H01Q9/0421

    摘要: Provided is an antenna based on proximity coupling between a short-ended microstrip feed line and a radiation patch, an RFID tag including the planar antenna, and an antenna impedance matching method thereof. The antenna includes a radiation patch configured to determine a resonant frequency of the antenna; a ground plate disposed in parallel to the radiation patch; and a feeding part disposed between the radiation patch and the ground plate and configured to provide radio frequency signals to a device connected to the antenna. The feeding part includes a feed line that is formed in a resonance length direction of the radiation patch and proximity-coupled with the radiation patch and one end of the feed line is shorted. The antenna freely controls the resistance and reactance of the antenna impedance independently and efficiently matched to a device connected to the antenna which has a predetermined impedance in wide bands.

    摘要翻译: 提供一种基于短路微带馈电线和辐射贴片之间的接近耦合的天线,包括平面天线的RFID标签及其天线阻抗匹配方法。 天线包括被配置为确定天线的谐振频率的辐射贴片; 与辐射贴片平行布置的接地板; 以及馈送部分,设置在辐射贴片和接地板之间并且被配置为向连接到天线的装置提供射频信号。 馈电部分包括沿辐射贴片的谐振长度方向形成的馈电线,并且与辐射贴片接近耦合,馈线的一端短路。 天线自由地控制天线阻抗的电阻和电抗,并且与宽带上具有预定阻抗的连接到天线的设备有效匹配。

    Apparatus and method for receiving tag signal in mobile RFID reader
    44.
    发明申请
    Apparatus and method for receiving tag signal in mobile RFID reader 有权
    用于在移动RFID读写器中接收标签信号的装置和方法

    公开(公告)号:US20070069864A1

    公开(公告)日:2007-03-29

    申请号:US11527998

    申请日:2006-09-27

    IPC分类号: H04Q5/22

    CPC分类号: H04B5/02 H04B5/0062

    摘要: Provided are a tag signal receiving apparatus that can perform digital Amplitude Shift Keying (ASK) demodulation onto signals received in a tag, decode the demodulated tag signal in synchronization, and acquire tag data in a mobile RFID reader, and a method thereof. The tag signal receiving apparatus includes: a digital demodulating block for performing ASK demodulation onto a digital tag signal received through a reader antenna and converted into a digital tag signal in an analog-to-digital (AD) converter; and a decoding block for detecting edge position information of the demodulated tag signal by performing accumulation and decoding the demodulated tag signal by using the detected edge position information. The digital demodulating block includes a channel level comparator, a phase inverter, a signal converter; and an adder. The decoding block includes an edge information detector, a correlator, and a bit data decider.

    摘要翻译: 提供一种标签信号接收装置,其可以对在标签中接收的信号执行数字幅移键控(ASK)解调,同步解码解调的标签信号,并在移动RFID读取器中获取标签数据及其方法。 标签信号接收装置包括:数字解调块,用于对通过读取器天线接收的数字标签信号进行ASK解调,并在模数(AD)转换器中转换为数字标签信号; 以及解码块,用于通过使用检测到的边缘位置信息来对解调的标签信号进行累加和解码来检测解调标签信号的边缘位置信息。 数字解调块包括信道电平比较器,相位逆变器,信号转换器; 和加法器。 解码块包括边缘信息检测器,相关器和位数据判定器。

    System with shared power amplifier for mobile communication terminal with mobile RFID function
    45.
    发明授权
    System with shared power amplifier for mobile communication terminal with mobile RFID function 有权
    具有共享功率放大器的系统,具有移动RFID功能的移动通信终端

    公开(公告)号:US08219141B2

    公开(公告)日:2012-07-10

    申请号:US12299808

    申请日:2007-05-10

    IPC分类号: H04M1/00

    摘要: Provided is a power amplifier sharing system for a mobile communication system having a mobile Radio Frequency Identification (RFID) function, particularly, a power amplifier sharing system that can reduce the power consumption and the size of a circuit in a mobile communication terminal having a mobile RFID function. The system includes a mobile communication transceiver for transmitting/receiving a mobile communication signal; a mobile RFID transceiver for transmitting/receiving a mobile RFID signal; a power amplifier for amplifying a signal; a switch for connecting the mobile communication transceiver and the mobile RFID transceiver to the power amplifier; and a transceiver controller for controlling the switch and the power amplifier.

    摘要翻译: 提供了一种用于具有移动射频识别(RFID)功能的移动通信系统的功率放大器共享系统,特别地,功率放大器共享系统,其能够降低移动通信终端中的电力消耗和电路的尺寸,该移动通信终端具有移动 RFID功能。 该系统包括用于发送/接收移动通信信号的移动通信收发器; 用于发送/接收移动RFID信号的移动RFID收发器; 用于放大信号的功率放大器; 用于将移动通信收发器和移动RFID收发器连接到功率放大器的开关; 以及用于控制开关和功率放大器的收发器控制器。

    Wireless sensor network and adaptive method for monitoring the security thereof
    46.
    发明授权
    Wireless sensor network and adaptive method for monitoring the security thereof 有权
    无线传感器网络和自适应方法,用于监控其安全性

    公开(公告)号:US08116243B2

    公开(公告)日:2012-02-14

    申请号:US11539084

    申请日:2006-10-05

    摘要: The present invention relates to a sensor network having node architecture for performing trust management of neighboring sensor nodes, and to an adaptive method for performing trust management of neighboring sensor nodes for monitoring security in the sensor network. The sensor network includes a base station and a plurality of sensor nodes for reporting sensed information packets to the base station through radiofrequency signals relayed by other sensor nodes. A judge sensor node may have a trust estimator in its node architecture to evaluate trustworthiness of a neighboring suspect sensor node by determining a personal reference and receiving personal references from jury sensor nodes. Based on the trustworthiness of the suspect, the judge may modify a route for transmitting packets to the base station.

    摘要翻译: 本发明涉及具有用于执行相邻传感器节点的信任管理的节点架构的传感器网络,以及用于执行相邻传感器节点的信任管理以便监测传感器网络中的安全性的自适应方法。 传感器网络包括基站和多个传感器节点,用于通过由其他传感器节点中继的射频信号向基站报告感测信息分组。 判断传感器节点可以在其节点架构中具有信任估计器,以通过确定个人参考并从陪审团传感器节点接收个人参考来评估邻近可疑传感器节点的可信赖性。 根据嫌疑人的可信赖性,法官可以修改用于向基站发送数据包的路由。

    METHOD AND APPARATUS FOR ASSIGNING CHANNEL IN AD-HOC NETWORK
    48.
    发明申请
    METHOD AND APPARATUS FOR ASSIGNING CHANNEL IN AD-HOC NETWORK 审中-公开
    用于在AD-HOC网络中分配通道的方法和装置

    公开(公告)号:US20110164573A1

    公开(公告)日:2011-07-07

    申请号:US12596832

    申请日:2007-10-24

    IPC分类号: H04W72/04

    摘要: The present invention provides a method and apparatus for assigning a channel in an ad-hoc network, which can minimize beacon collision in the ad-hoc network and prevent channel overlapping or collision, and thus a channel can be efficiently assigned. The method of assigning a channel including: obtaining join order information which is information on the order in which a first node has been joined to a second node, which is a parent node, and level information of the second node in an ad-hoc network; determining a reference value for setting a channel that is to be assigned to the first node based on an address value of the first node, which is determined based on the join order information and the level information, a level value of the first node, a channel value of the second node, which is determined based on the level information, and the join order information; and determining a channel value of the first node by dividing the reference value by the maximum number of usable channels in the ad-hoc network.

    摘要翻译: 本发明提供了一种用于在自组织网络中分配信道的方法和装置,其可以最小化自组织网络中的信标冲突并且防止信道重叠或冲突,从而可以有效地分配信道。 分配频道的方法,包括:获取作为第一节点已加入到第二节点(其为父节点)的顺序的信息的连接顺序信息和自组织网络中的第二节点的级别信息 ; 基于所述第一节点的基于所述连接顺序信息和所述级别信息确定的地址值,确定用于设置要分配给所述第一节点的信道的参考值,所述第一节点的级别值, 基于级别信息确定的第二节点的信道值和连接顺序信息; 以及通过将所述参考值除以所述自组织网络中的可用信道的最大数目来确定所述第一节点的信道值。

    Method and apparatus for sharing portable terminal in CDMA system and mobile RFID system
    49.
    发明授权
    Method and apparatus for sharing portable terminal in CDMA system and mobile RFID system 失效
    用于在CDMA系统和移动RFID系统中共享便携式终端的方法和装置

    公开(公告)号:US07933577B2

    公开(公告)日:2011-04-26

    申请号:US11600605

    申请日:2006-11-16

    IPC分类号: H04B1/06 G08B13/14

    CPC分类号: G06K7/0008

    摘要: Provided are a method and apparatus for sharing a portable terminal in a Code Division Multiple Access (CDMA) and a mobile Radio Frequency Identification (RFID) system. The portable terminal includes: a CDMA mobile station system for performing CDMA communication; a mobile RFID system for performing a passive RFID reader function; a switching unit for switching an antenna to any one between the CDMA mobile station system and the mobile RFID system; and a control unit for controlling the switching unit to connect the antenna to the CDMA mobile station system when the portable terminal transmits/receives a signal to/from the base station, or connect the antenna to the mobile RFID system when the portable terminal transmits/receives a signal to/from an RFID tag.

    摘要翻译: 提供了一种用于在码分多址(CDMA)和移动射频识别(RFID)系统中共享便携式终端的方法和装置。 便携式终端包括:用于执行CDMA通信的CDMA移动站系统; 用于执行无源RFID读取器功能的移动RFID系统; 用于将天线切换到CDMA移动站系统和移动RFID系统之间的任何一个的切换单元; 以及控制单元,用于当便携式终端向/从基站发送/接收信号时控制切换单元将天线连接到CDMA移动站系统,或者当便携式终端发送/接收来自基站的天线时将天线连接到移动RFID系统, 从RFID标签接收信号。