RFID reader and method for suppressing transmission leakage signal thereof
    2.
    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

    IPC分类号: H04B17/00

    摘要: 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.

    摘要翻译: 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。

    Apparatus and method for transmit leakage signal suppression in RFID reader
    3.
    发明授权
    Apparatus and method for transmit leakage signal suppression in RFID reader 失效
    RFID读写器中传输泄漏信号抑制的装置和方法

    公开(公告)号:US08054161B2

    公开(公告)日:2011-11-08

    申请号:US12328385

    申请日:2008-12-04

    摘要: A method and apparatus for suppressing a transmit leakage signal of a radio frequency identification (RFID) reader is provided. The apparatus includes: a first power distributor distributing a transmission signal to output a first transmission signal and a second transmission signal; a second power distributor distributing the second transmission signal to output a third transmission signal and a fourth transmission signal; a first amplitude/phase converter converting an amplitude and a phase of the first transmission signal to generate a first converted signal; a second amplitude/phase converter converting an amplitude and a phase of the third transmission signal to generate a second converted signal; a first power combiner combining the first converted signal with a first leakage signal generated in association with the fourth transmission signal; and a second power combiner combining the second converted signal with a second leakage signal generated in association with the fourth transmission signal.

    摘要翻译: 提供一种用于抑制射频识别(RFID)读取器的发送泄漏信号的方法和装置。 该装置包括:分配传输信号以输出第一传输信号和第二传输信号的第一功率分配器; 分配第二传输信号以输出第三传输信号和第四传输信号的第二功率分配器; 转换第一传输信号的幅度和相位以产生第一转换信号的第一幅度/相位转换器; 转换第三发送信号的幅度和相位的第二幅度/相位转换器,以产生第二转换信号; 第一功率组合器,其将所述第一转换信号与与所述第四发送信号相关联地生成的第一泄漏信号组合; 以及第二功率组合器,其将所述第二转换信号与与所述第四发送信号相关联地生成的第二泄漏信号组合。

    Apparatus and method for demodulating subcarrier tag signal in RFID reader
    4.
    发明授权
    Apparatus and method for demodulating subcarrier tag signal in RFID reader 有权
    RFID读写器中子载波标签信号的解调装置及方法

    公开(公告)号:US08264332B2

    公开(公告)日:2012-09-11

    申请号:US12348529

    申请日:2009-01-05

    IPC分类号: G08B21/00

    摘要: An apparatus and a method for demodulating a subcarrier tag signal in a radio frequency identification (RFID) reader is provided. The apparatus for demodulating the subcarrier tag signal in the RFID reader may include: an edge signal generation unit receiving a subcarrier tag signal and generating an edge signal with respect to the tag signal; an edge information extraction unit extracting edge information from the generated edge signal; and a decoding unit decoding the tag signal using the extracted edge information.

    摘要翻译: 提供了一种用于解调射频识别(RFID)读取器中的子载波标签信号的装置和方法。 用于解调RFID读取器中的子载波标签信号的装置可以包括:边缘信号生成单元,接收副载波标签信号并相对于标签信号产生边缘信号; 边缘信息提取单元,从生成的边缘信号中提取边缘信息; 以及解码单元,使用所提取的边缘信息对标签信号进行解码。

    Passive RFID reader and operation control method therefor
    5.
    发明授权
    Passive RFID reader and operation control method therefor 失效
    被动RFID阅读器及其操作控制方法

    公开(公告)号:US08653946B2

    公开(公告)日:2014-02-18

    申请号:US11746306

    申请日:2007-05-09

    IPC分类号: H04Q5/22

    摘要: Provided is a Radio Frequency Identification (RFID) reader that can minimize collision among RFID readers in an environment where there are a plurality of RFID readers within a limited operating environment by making each RFID reader select a channel at different delay time based on a random value, and a method for controlling operation of the RFID reader. The RFID reader includes a random value generating unit; a reader control unit for adaptively deciding a counter value for generating the random value; an anti-collision unit for preventing collision among a plurality of tags; a reader transmitting unit for generating a reader command message determined by the anti-collision unit, encoding the reader command message, and modulating the reader command message; a reader receiving unit for demodulating and decoding a tag signal; and a channel operation control unit for selecting a channel to be used for the communication with the tag.

    摘要翻译: 提供了一种射频识别(RFID)读取器,其可以在有限操作环境中存在多个RFID读取器的环境中最小化RFID读取器之间的冲突,使得每个RFID读取器基于随机值在不同的延迟时间选择信道 以及用于控制RFID读取器的操作的方法。 RFID读取器包括随机值生成单元; 读取器控制单元,用于自适应地确定用于生成随机值的计数器值; 用于防止多个标签之间的碰撞的防碰撞单元; 读取器发送单元,用于生成由反冲突单元确定的读取器命令消息,对读取器命令消息进行编码,以及调制读取器命令消息; 读取器接收单元,用于解调和解码标签信号; 以及频道操作控制单元,用于选择要用于与标签进行通信的频道。

    Apparatus and method for reading multiple tags with different protocols in RFID system
    6.
    发明申请
    Apparatus and method for reading multiple tags with different protocols in RFID system 审中-公开
    在RFID系统中读取不同协议的多个标签的装置和方法

    公开(公告)号:US20070069862A1

    公开(公告)日:2007-03-29

    申请号:US11525310

    申请日:2006-09-22

    IPC分类号: H04Q5/22

    CPC分类号: H04L69/18 H04L67/32

    摘要: An apparatus and method for reading multiple tags with different protocols in a RFID system are provided. The method of reading multiple tags with different protocols in a RFID system including the steps of: a) setting scheduling parameters including target protocols to read, priorities of each protocol, and information about a scheduling algorithm mode for reading multiple tags; b) reading tags of a single protocol corresponding to the target protocol when the scheduling algorithm mode is a single mode; and c) reading multiple tags by the target protocols when the scheduling algorithm mode is a multi mode.

    摘要翻译: 提供了一种用于在RFID系统中读取具有不同协议的多个标签的装置和方法。 在RFID系统中读取具有不同协议的多个标签的方法,包括以下步骤:a)设置包括目标协议读取的调度参数,每个协议的优先级以及关于读取多个标签的调度算法模式的信息; b)当调度算法模式为单一模式时,读取与目标协议对应的单个协议的标签; 以及c)当调度算法模式为多模式时,通过目标协议读取多个标签。

    Mobile RFID reader and control method thereof
    7.
    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

    IPC分类号: H04Q5/22

    摘要: 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.

    摘要翻译: 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。

    System with shared power amplifier for mobile communication terminal with mobile RFID function
    8.
    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。

    Apparatus and method for integrated reader and tag
    9.
    发明授权
    Apparatus and method for integrated reader and tag 有权
    集成阅读器和标签的装置和方法

    公开(公告)号:US08362879B2

    公开(公告)日:2013-01-29

    申请号:US12375137

    申请日:2007-07-26

    IPC分类号: H04Q5/22 H04L12/413 G08B13/14

    摘要: Provided are a reader-tag integrated RFID apparatus and a method for controlling the same. The apparatus includes a tag unit for communicating with an external reader, and transmitting a response signal and data corresponding to a signal transmitted from the external reader to the external reader, a reader unit for selecting a channel between other reader and the reader-tag integrated RFID apparatus with a different delay time, and communicating with an external tag using a random value to minimize collision; and a controller for selectively activating one of the tag unit and the reader unit if it necessary.

    摘要翻译: 提供了一种读写器集成RFID装置及其控制方法。 该装置包括用于与外部读取器进行通信的标签单元,并将响应信号和对应于从外部读取器发送的信号的数据发送到外部读取器;读取单元,用于选择其他读取器与读取器标签之间的通道集成 具有不同延迟时间的RFID装置,并且使用随机值与外部标签通信以最小化碰撞; 以及如果需要,选择性地激活标签单元和读取器单元中的一个的控制器。

    Mobile RFID reader and control method thereof
    10.
    发明授权
    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:US07982584B2

    公开(公告)日:2011-07-19

    申请号:US11526517

    申请日:2006-09-25

    IPC分类号: H04Q5/22

    摘要: 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.

    摘要翻译: 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。