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    • 3. 发明授权
    • Method and systems of tagging objects and reading tags coupled to objects
    • 标记对象和阅读耦合到对象的标签的方法和系统
    • US08860555B2
    • 2014-10-14
    • US13923951
    • 2013-06-21
    • Round Rock Research, LLC
    • John R. Tuttle
    • G08B13/14G06K19/077H04B5/00G06K7/10
    • G06K7/10009G06K19/07749H04B5/0062
    • Methods and systems of tagging objects and reading tags coupled to objects. At least some of the illustrative embodiments are systems comprising a reading antenna, a tag reader coupled to the reading antenna, and a radio frequency identification (RFID) tag comprising a tag antenna electromagnetically coupled to the reading antenna. The RFID tag couples to an object such as the body of a living organism or a metallic article. Moreover, the tag antenna has a far-field radiation pattern in a direction away from the object that is substantially unaffected by proximity of the RFID tag to the object, and substantially unaffected by which surface of the RFID tag faces the object.
    • 标记对象和阅读耦合到对象的标签的方法和系统。 至少一些说明性实施例是包括读取天线,耦合到读取天线的标签读取器和包括电磁耦合到读取天线的标签天线的射频识别(RFID)标签的系统。 RFID标签耦合到诸如生物体的主体或金属制品的物体。 此外,标签天线具有远离物体的方向的远场辐射图案,其基本上不受RFID标签与物体的接近的影响,并且基本上不受RFID标签的表面面向物体的影响。
    • 6. 发明授权
    • Methods and apparatus for conducting financial transactions
    • 进行金融交易的方法和手段
    • US08638709B2
    • 2014-01-28
    • US13619382
    • 2012-09-14
    • Clifton W. Wood, Jr.
    • Clifton W. Wood, Jr.
    • H04J3/16H04W4/00H04L12/413H04Q5/22
    • G06Q20/3223G06K7/0008G06K7/10019G06Q20/24G06Q20/26G07B15/00H04L29/1232H04L61/2092H04W8/26H04W24/00H04W40/246H04W74/06H04W74/08H04W76/11
    • A method of establishing wireless communications between an interrogator and individual ones of multiple wireless identification devices, the method comprising combining tree search and Aloha methods to establish communications between the interrogator and individual ones of the multiple wireless identification devices without collision. A system comprising an interrogator, and a plurality of wireless identification devices configured to communicate with the interrogator In a wireless fashion, the respective wireless identification devices having a unique identification number, the interrogator being configured to employ tree search and Aloha techniques to determine the unique identification numbers of the different wireless identification devices so as to be able to establish communications between the interrogator identification and individual devices without ones of the multiple wireless collision by multiple wireless identification devices attempting to respond to the interrogator at the same time.
    • 一种在询问器和多个无线识别装置中的各个无线识别装置之间建立无线通信的方法,所述方法包括组合树搜索和Aloha方法以在所述询问器与所述多个无线识别装置中的个别无线识别装置之间进行无冲突的通信。 一种包括询问器和多个无线识别设备的系统,被配置为与询问器通信以无线方式,相应的无线识别设备具有唯一的标识号,询问器被配置为采用树搜索和Aloha技术来确定唯一的 识别号码,以便能够在询问器识别和各个设备之间建立通信,而不用同时尝试响应询问器的多个无线识别设备进行多次无线冲突。
    • 9. 发明授权
    • Wake up device for communications system and methods
    • 唤醒设备的通信系统和方法
    • US08565712B2
    • 2013-10-22
    • US13053098
    • 2011-03-21
    • Robert R. Rotzoll
    • Robert R. Rotzoll
    • H04B1/16
    • H04W52/0229H04W52/028H04W52/0293Y02D70/166
    • The present invention teaches a communications system comprising a first communications device for receiving data and a wake up signal. The first communications device comprises an active mode of operation and a sleep mode of operation for reducing power consumption. Further, the system comprises means for switching the first communications device to and from sleep mode in response to receiving the wake up signal. Further, the system comprises a second communications device for transmitting data to the first device during its active mode, while transmitting the wake up signal to the first device during its sleep mode.
    • 本发明教导了包括用于接收数据和唤醒信号的第一通信设备的通信系统。 第一通信设备包括主动操作模式和用于降低功耗的睡眠操作模式。 此外,该系统包括用于响应于接收到唤醒信号而将第一通信设备切换到睡眠模式和从睡眠模式切换的装置。 此外,该系统包括用于在其活动模式期间向第一设备发送数据的第二通信设备,同时在其睡眠模式期间将唤醒信号发送到第一设备。
    • 10. 发明授权
    • Method and apparatus for generating a sequence of clock signals
    • 用于产生时钟信号序列的方法和装置
    • US08565008B2
    • 2013-10-22
    • US13021223
    • 2011-02-04
    • Ronnie M. Harrison
    • Ronnie M. Harrison
    • G11C11/24
    • G11C7/22G11C7/1078G11C7/109G11C7/222G11C8/08G11C8/10G11C11/4076G11C11/4093H03L7/07H03L7/0812H03L7/0891
    • A clock generator circuit generates a sequence of clock signals equally phased from each other from a master clock signal. The clock generator is formed by inner and outer delay-locked loops. The inner delay-locked loop includes a voltage controlled delay line that delays a reference clock applied to its input by a plurality of respective delays. Two of the clock signals in the sequence are applied to a phase detector so that the signals at the outputs of the delay line have predetermined phases relative to each other. The outer delay-locked loop is formed by a voltage controlled delay circuit that delays the command clock by a voltage controlled delay to provide the reference clock to the delay line of the inner delay-locked loop. The outer delay-locked loop also includes a phase detector that compares the command clock to one of the clock signals in the sequence generated by the delay line. The outer delay-locked loop thus locks one of the clock signals in the sequence to the command clock. As a result, all of the clock signals in the sequence generated by the delay line have respective predetermined phases relative to the phase of the command clock. One of the clock signals in the sequence is selected by a multiplexer to clock a command data latch at a time corresponding to the delay in coupling a command data bit to the latch.
    • 时钟发生器电路从主时钟信号产生彼此相位相位的时钟信号序列。 时钟发生器由内部和外部延迟锁定环形成。 内部延迟锁定环路包括电压控制延迟线,其延迟通过多个相应延迟施加到其输入的参考时钟。 序列中的两个时钟信号被施加到相位检测器,使得延迟线的输出处的信号相对于彼此具有预定的相位。 外部延迟锁定环由电压控制延迟电路形成,该延迟电路通过电压控制延迟延迟命令时钟,以将参考时钟提供给内部延迟锁定环路的延迟线。 外延迟锁定环还包括相位检测器,其将命令时钟与由延迟线产生的序列中的一个时钟信号进行比较。 外延迟锁定环因此将序列中的一个时钟信号锁定到命令时钟。 结果,由延迟线产生的序列中的所有时钟信号相对于命令时钟的相位具有相应的预定相位。 序列中的一个时钟信号由多路复用器选择,以在与命令数据位耦合到锁存器的延迟相对应的时间对命令数据锁存器进行时钟。