METHOD AND APPARATUS FOR PASSIVE RADIO FREQUENCY INDENTIFICATION (RFID) READER DIGITAL DEMODULATION FOR MANCHESTER SUBCARRIER SIGNAL
    11.
    发明申请
    METHOD AND APPARATUS FOR PASSIVE RADIO FREQUENCY INDENTIFICATION (RFID) READER DIGITAL DEMODULATION FOR MANCHESTER SUBCARRIER SIGNAL 审中-公开
    用于无线射频识别(RFID)读取器数字解调方法和装置的MANCHESTER SUBCARRIER信号

    公开(公告)号:US20120057656A1

    公开(公告)日:2012-03-08

    申请号:US13225949

    申请日:2011-09-06

    CPC classification number: H04L25/4904 G06K7/10009 H04L25/06

    Abstract: An apparatus and method for passive radio frequency identification (RFID) reader digital demodulation with respect to a Manchester subcarrier signal are disclosed. In a passive RFID environment where the Manchester subcarrier signal contains DC components in a frequency region, even when a tag signal containing the DC offset noise is input to a baseband, demodulation may be efficiently performed while the DC offset noise is removed. Therefore, accurate detection of tag information from the tag signal may be achieved.

    Abstract translation: 公开了一种关于曼彻斯特副载波信号的无源射频识别(RFID)读取器数字解调的装置和方法。 在曼彻斯特副载波信号包含频率区域中的DC分量的无源RFID环境中,即使当包含DC偏移噪声的标签信号被输入到基带时,也可以在去除DC偏移噪声的同时有效地执行解调。 因此,可以实现来自标签信号的标签信息的准确检测。

    RFID READER ANTENNA AND RFID SHELF HAVING THE SAME
    13.
    发明申请
    RFID READER ANTENNA AND RFID SHELF HAVING THE SAME 审中-公开
    RFID阅读器天线和RFID框架

    公开(公告)号:US20110090130A1

    公开(公告)日:2011-04-21

    申请号:US12895142

    申请日:2010-09-30

    Abstract: An RFID reader antenna including: a printed circuit board (PCB) formed as a dielectric substance; a plurality of slot groups, each having a plurality of slots, disposed on a first face of the PCB; a ground face disposed on areas, excluding the plurality of slot groups, of the first face of the PCB; and a feeder formed as a microstrip line with an open end on a second face of the PCB to feed the plurality of slot groups. Because the slots periodically formed on the ground face are fed in series by using the single microstrip line, the RFID reader antenna can reliably recognize a larger area with a simple structure. In particular, the RFID reader antenna can be useful for the bookstands for book management or smart shelves for displaying articles or goods including clothing goods in superstores or hypermarkets through the use of the ILT RFID application.

    Abstract translation: 一种RFID读取器天线,包括:形成为电介质的印刷电路板(PCB); 多个槽组,每个具有多个槽,设置在所述PCB的第一面上; 布置在所述PCB的第一面的除了所述多个槽组之外的区域上的接地面; 以及馈送器,其形成为在PCB的第二面上具有开口端的微带线,以馈送多个槽组。 由于通过使用单条微带线,周期性地形成在地面上的槽被串联馈送,因此RFID读取器天线可以以简单的结构可靠地识别较大的区域。 特别地,RFID阅读器天线可用于书本管理的书店或通过使用ILT RFID应用程序来显示物品或商品,包括超级市场或大型超市中的服装商品的智能货架。

    Mobile RFID reader and control method thereof
    15.
    发明申请
    Mobile RFID reader and control method thereof 失效
    移动RFID阅读器及其控制方法

    公开(公告)号:US20070069859A1

    公开(公告)日:2007-03-29

    申请号:US11526517

    申请日:2006-09-25

    Abstract: Provided are a mobile RFID reader and a control method thereof. The mobile RFID reader includes: a reader controller for beginning a reader operation to communicate with a tag in response to a command of a terminal controller of the wireless communication terminal; an anti-collision state machine for controlling collision among a plurality of tags, and transferring the result of communication with the tag to the reader controller; a reader transmitter for generating a reader command message decided at the anti-collision state machine, and coding and modulating the generated reader command message; a reader receiver for demodulating and decoding a tag signal received through an antenna, and reporting a tag response state to the anti-collision state machine; and a channel controller for selecting a channel to use to communicate with a tag in response to a command of the reader controller.

    Abstract translation: 提供了一种移动RFID读取器及其控制方法。 移动RFID读取器包括:读取器控制器,用于响应于无线通信终端的终端控制器的命令开始读取器操作以与标签通信; 用于控制多个标签之间的冲突并将与标签的通信结果传送给读取器控制器的防冲突状态机; 读取器发送器,用于生成在反冲突状态机处决定的读取器命令消息,以及对生成的读取器命令消息进行编码和调制; 读取器接收器,用于对通过天线接收的标签信号进行解调和解码,并将标签响应状态报告给防冲突状态机; 以及频道控制器,用于响应于读取器控制器的命令,选择用于与标签通信的频道。

    RFID system and communication method thereof
    16.
    发明授权
    RFID system and communication method thereof 有权
    RFID系统及其通信方法

    公开(公告)号:US08890658B2

    公开(公告)日:2014-11-18

    申请号:US13584967

    申请日:2012-08-14

    Abstract: 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.

    Abstract translation: 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。

    Passive RFID system and method
    17.
    发明授权
    Passive RFID system and method 失效
    被动RFID系统和方法

    公开(公告)号:US08717147B2

    公开(公告)日:2014-05-06

    申请号:US12886689

    申请日:2010-09-21

    CPC classification number: G06K7/0008 G06K7/10069

    Abstract: Disclosed are a passive RFID (Radio Frequency Identification) system and method capable of recognizing a great deal of tags at a high speed. A reader of a passive RFID system, including: a processor dividing slots and subchannels to configure a round, recognizing subchannels that are not involved in a collision and interference by the slots, and changing the subchannels that are not involved in a collision and interference, into a sleep state; a transmission unit encoding a command generated through the processor, performing an amplitude jitter modulation on the encoded command, and transmitting the modulated command; and a reception unit acquiring and demodulating tag signals received through a plurality of subchannels by the slots, and providing the demodulated tag signals to the processor.

    Abstract translation: 公开了能够高速识别大量标签的无源RFID(射频识别)系统和方法。 一种无源RFID系统的阅读器,包括:处理器分割时隙和子信道以配置轮回,识别未被时隙的冲突和干扰的子信道,以及改变不涉及冲突和干扰的子信道, 进入睡眠状态; 编码通过所述处理器生成的命令的传输单元,对所述编码命令执行振幅抖动调制,以及发送所述调制命令; 以及接收单元,通过所述时隙获取并解调通过多个子信道接收的标签信号,并将解调的标签信号提供给处理器。

    RFID reader and method for suppressing transmission leakage signal thereof
    18.
    发明授权
    RFID reader and method for suppressing transmission leakage signal thereof 失效
    RFID读写器及其传输泄漏信号的抑制方法

    公开(公告)号:US08666323B2

    公开(公告)日:2014-03-04

    申请号:US12786777

    申请日:2010-05-25

    CPC classification number: H04B1/525 G06K7/0008 G06K7/10346

    Abstract: Provided are an RFID reader and a method for suppressing transmission leakage signals thereof. The RFID reader includes a first loop, a second loop, and a digital signal processor. The first loop suppresses a first transmission leakage signal of an RX signal in response to a first leakage control signal. The second loop suppresses a second transmission leakage signal of the RX signal, received through the first loop, in response to a second leakage control signal. The digital signal processor generates the first leakage control signal and the second leakage control signal. The digital signal processor generates the first leakage control signal until the level of the first transmission leakage signal becomes equal to or lower than the level of a first reference transmission leakage signal.

    Abstract translation: 提供RFID读取器和用于抑制其传输泄漏信号的方法。 RFID读取器包括第一环路,第二环路和数字信号处理器。 第一回路响应于第一泄漏控制信号来抑制RX信号的第一传输泄漏信号。 响应于第二泄漏控制信号,第二回路抑制通过第一回路接收的RX信号的第二传输泄漏信号。 数字信号处理器产生第一泄漏控制信号和第二泄漏控制信号。 数字信号处理器产生第一泄漏控制信号,直到第一传输泄漏信号的电平变得等于或低于第一参考传输泄漏信号的电平。

    System with shared power amplifier for mobile communication terminal with mobile RFID function
    19.
    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

    CPC classification number: H04B1/406 H04B1/0057 H04B1/0483

    Abstract: 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.

    Abstract translation: 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。

    ELECTRONIC SHELF LABEL (ESL) APPARATUS USING RADIO FREQUENCY IDENTIFICATION (RFID) AND METHOD FOR OPERATING THE ESL APPARATUS
    20.
    发明申请
    ELECTRONIC SHELF LABEL (ESL) APPARATUS USING RADIO FREQUENCY IDENTIFICATION (RFID) AND METHOD FOR OPERATING THE ESL APPARATUS 审中-公开
    使用无线电频率识别(RFID)的电子书签标签(ESL)设备和操作ESL设备的方法

    公开(公告)号:US20120126982A1

    公开(公告)日:2012-05-24

    申请号:US13189891

    申请日:2011-07-25

    CPC classification number: G06Q30/06

    Abstract: Provided are an electronic shelf label (ESL) apparatus using radio frequency identification (RFID) and an operation method of the ESL apparatus. The ESL apparatus may include an ESL tag to be attached to a shelf and a radio tag reader to store, in the ESL tag, details that is received from an ESL server, in response to an article information update request from the ESL server.

    Abstract translation: 提供了使用射频识别(RFID)的电子货架标签(ESL)装置和ESL装置的操作方法。 ESL装置可以包括要附接到货架的ESL标签和无线电标签读取器,以响应于来自ESL服务器的文章信息更新请求,在ESL标签中存储从ESL服务器接收的细节。

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