RFID READER AND SIGNAL RECEIVING METHOD THEREOF
    4.
    发明申请
    RFID READER AND SIGNAL RECEIVING METHOD THEREOF 审中-公开
    RFID读写器和信号接收方法

    公开(公告)号:US20110140853A1

    公开(公告)日:2011-06-16

    申请号:US12819345

    申请日:2010-06-21

    IPC分类号: H04Q5/22

    CPC分类号: G06K7/10217

    摘要: The present invention relates to an RFID reader and a signal receiving method thereof. The RFID reader according to one embodiment of the present invention down-converts transmission leakage signals introduced into a reader receiver and then suppresses them through a band stop filter in a low frequency band and up-converts them, thereby making it possible to effectively suppress the transmission leakage signals.

    摘要翻译: RFID读取器及其信号接收方法技术领域本发明涉及RFID读取器及其信号接收方法。 根据本发明的一个实施例的RFID读取器将引入到读取器接收器中的传输泄漏信号降频,然后通过低频带中的带阻滤波器对其进行上变频,从而可以有效地抑制 传输泄漏信号。

    LOW-POWERED RFID TAG AND METHOD OF EXPANDING LIFECYCLE OF RFID TAG
    5.
    发明申请
    LOW-POWERED RFID TAG AND METHOD OF EXPANDING LIFECYCLE OF RFID TAG 审中-公开
    低功率RFID标签和扩展RFID标签生物的方法

    公开(公告)号:US20080136603A1

    公开(公告)日:2008-06-12

    申请号:US11875493

    申请日:2007-10-19

    IPC分类号: H04B7/00

    摘要: A battery-powered RFID tag capable of reducing power consumption and a method of waking up the RFID tag are provided. The battery-powered RFID tag has an activated mode where a general command is detected by decoding a signal received from an RFID tag reader and the general command is executed and a standby mode where the general command is not detected. If a voltage of a continuous wave detected from the signal is equal to or higher than a predetermined voltage or if a wake-up command is detected from the signal, the state of the RFID tag is changed from the standby mode to the activated mode. In addition, the RFID tag is driven by a higher one between the voltage of the continuous wave and a voltage of a built-in battery.

    摘要翻译: 提供了能够降低功耗的电池供电的RFID标签和唤醒RFID标签的方法。 电池供电的RFID标签具有激活模式,其中通过对从RFID标签读取器接收的信号进行解码来检测通用命令,并且执行通用命令以及未检测到通用命令的待机模式。 如果从信号检测到的连续波的电压等于或高于预定电压,或者如果从该信号检测到唤醒命令,则RFID标签的状态从待机模式改变为激活模式。 此外,RFID标签由连续波的电压和内置电池的电压之间的较高驱动。

    Apparatus and method for generating pseudo noise code
    6.
    发明授权
    Apparatus and method for generating pseudo noise code 有权
    用于产生伪噪声码的装置和方法

    公开(公告)号:US08787514B2

    公开(公告)日:2014-07-22

    申请号:US13003374

    申请日:2008-12-31

    IPC分类号: H04L27/10

    摘要: An apparatus and method of generating a pseudo noise (PN) code is provided. The apparatus for generating the PN code includes: a memory device unit including a plurality of memory devices; an exclusive-OR (XOR) operation unit receiving output values of at least two memory devices among output values of the plurality of memory devices to output an XOR operation value with respect to the received output values; and a PN code generation unit generating the PN code based on an output value of the XOR operation unit.

    摘要翻译: 提供了一种产生伪噪声(PN)码的装置和方法。 用于产生PN码的装置包括:包括多个存储装置的存储装置单元; 异或(XOR)操作单元,在多个存储器件的输出值之间接收至少两个存储器件的输出值,以相对于所接收的输出值输出异或运算值; 以及PN代码生成单元,其基于所述异或运算单元的输出值生成所述PN码。

    Method and apparatus for constructing synchronous sensor network
    7.
    发明授权
    Method and apparatus for constructing synchronous sensor network 有权
    构建同步传感器网络的方法和装置

    公开(公告)号:US08254290B2

    公开(公告)日:2012-08-28

    申请号:US12548979

    申请日:2009-08-27

    IPC分类号: H04L12/28 H04B7/00 G06F15/16

    摘要: A method and apparatus using a synchronous sensor network medium access control (MAC) protocol, such as a ZigBee or IEEE 802.15.4 low-rate wireless personal area network (WPAN), is disclosed. A method and apparatus for constructing a ubiquitous sensor network (USN) of which a life is increased by using power beacons and reducing the number of unnecessary control packets (beacon packets), thereby reducing an initialization time between nodes and preventing beacon collision, is also disclosed. A beacon packet channel having a large output power and a data channel of which a transmission range is restricted by reducing an output power to be less than that of the beacon packet channel, may be simultaneously used.

    摘要翻译: 公开了一种使用诸如ZigBee或IEEE 802.15.4低速率无线个域网(WPAN)的同步传感器网络介质访问控制(MAC)协议的方法和装置。 一种用于构建普遍存在的传感器网络(USN)的方法和装置,其通过使用电力信标增加寿命并减少不必要的控制分组(信标分组)的数量,从而减少节点之间的初始化时间并防止信标冲突也是 披露 可以同时使用具有大输出功率的信标分组信道和通过将输出功率降低到小于信标分组信道的输出功率来限制传输范围的数据信道。

    APPARATUS FOR MEASURING READ RANGE BETWEEN RFID TAG AND READER
    8.
    发明申请
    APPARATUS FOR MEASURING READ RANGE BETWEEN RFID TAG AND READER 失效
    用于测量RFID标签和读取器之间的读取范围的装置

    公开(公告)号:US20060261821A1

    公开(公告)日:2006-11-23

    申请号:US11296056

    申请日:2005-12-07

    IPC分类号: G01R27/00

    摘要: Provided is an apparatus for measuring a read range between a tag and a reader, which includes an electromagnetic anechoic chamber formed by connecting at least one unit cell in a row, the unit cell having an electromagnetic wave absorbent provided on an inner wall of each unit cell, an electromagnetic generation portion located at the unit cell at an end of the electromagnetic anechoic chamber and transmitting an electromagnetic wave through an antenna, and an electromagnetic measurement portion which measures a field strength of the electromagnetic wave transmitted from the electromagnetic generation portion using an electric field probe moving in the electromagnetic anechoic chamber.

    摘要翻译: 提供了一种用于测量标签和读取器之间的读取范围的装置,其包括通过连接至少一个单元电池而形成的电磁消声室,该单元具有设置在每个单元的内壁上的电磁波吸收器 电池,位于电磁波暗室的端部处的单元的电磁产生部,通过天线透射电磁波;电磁测量部,其使用电磁波发生部测量从电磁产生部发射的电磁场的场强 电磁探测器在电磁消声室中移动。

    Constant amplitude decoding apparatus and method for multiplexed direct-sequence spread communication system
    9.
    发明授权
    Constant amplitude decoding apparatus and method for multiplexed direct-sequence spread communication system 有权
    用于多路直接序列扩展通信系统的恒定幅度解码装置和方法

    公开(公告)号:US08731020B2

    公开(公告)日:2014-05-20

    申请号:US13184344

    申请日:2011-07-15

    IPC分类号: H04B1/00 H04L5/12

    CPC分类号: H04B1/707 H04L1/0065

    摘要: A constant amplitude decoding apparatus and method for multiplexed direct-sequence spread spectrum communication system are provided. The constant amplitude decoding apparatus includes: a despreading and demultiplexing module receiving a data stream of a constant amplitude and despreading and demultiplexing the received data stream to restore it to a 2D signal; a decoding module first performing a vertical decoding on the 2D signal and then performing horizontal decoding thereon; a control module determining whether to repeatedly perform vertical decoding and horizontal decoding; and a bit stream information output module outputting the decoding results from the decoding module as a bit stream.

    摘要翻译: 提供了一种用于多路复用直接序列扩频通信系统的恒定幅度解码装置和方法。 恒幅解码装置包括:解扩和解复用模块,接收恒定幅度的数据流,解扩和解复用接收的数据流,将其恢复到2D信号; 解码模块首先对2D信号执行垂直解码,然后对其进行水平解码; 确定是否重复执行垂直解码和水平解码的控制模块; 以及比特流信息输出模块,作为比特流从解码模块输出解码结果。

    RFID SYSTEM AND COMMUNICATION METHOD THEREOF
    10.
    发明申请
    RFID SYSTEM AND COMMUNICATION METHOD THEREOF 有权
    RFID系统及其通信方法

    公开(公告)号:US20130106580A1

    公开(公告)日:2013-05-02

    申请号:US13584967

    申请日:2012-08-14

    IPC分类号: G06K7/01

    摘要: An RFID system using an M pulse amplitude modulation (M-PAM) or M quadrature amplitude modulation (M-QAM) scheme using a plurality of load-modulators, a plurality of antennas, and a communication method thereof are provided. The RFID system includes: an RFID tag; and a reader device communicating with the RFID device, wherein the RFID tag includes: N load-modulators an N antennas communicating with the reader device in any one scheme of M-pulse amplitude modulation (M-PAM) and M-quadrature amplitude modulation (M-QAM) in which modulation of an M level is performed and operated corresponding to the M level.

    摘要翻译: 提供了使用使用多个负载调制器的M脉冲幅度调制(M-PAM)或M正交幅度调制(M-QAM)方案的RFID系统,多个天线及其通信方法。 RFID系统包括:RFID标签; 以及与所述RFID设备通信的读取器设备,其中所述RFID标签包括:N个负载调制器,N个天线与所述读取器设备以任何一种M脉冲幅度调制(M-PAM)和M-正交幅度调制(M- M-QAM),其中对应于M电平执行和操作M电平的调制。