RFID reader controllers limiting theft of confidential information
    31.
    发明授权
    RFID reader controllers limiting theft of confidential information 有权
    RFID读写器控制器限制机密信息的窃取

    公开(公告)号:US08258918B1

    公开(公告)日:2012-09-04

    申请号:US12370859

    申请日:2009-02-13

    CPC classification number: G06K7/10257 G06K7/0008

    Abstract: An RFID reader controller and methods of controlling an RFID reader by an RFID reader controller are provided to limit or prevent the issuing of confidential information such as encryption keys, passwords, shared secrets, and the like to RFID tags if a reader is not authorized. A controller may determine the authorization status of a reader and limit its communication with the reader or instruct the reader to limit an operational aspect of the reader.

    Abstract translation: 提供RFID阅读器控制器和通过RFID读取器控制器控制RFID阅读器的方法,以限制或防止如果阅读器未被授权,则向RFID标签发布诸如加密密钥,密码,共享秘密等机密信息。 控制器可以确定读取器的授权状态并限制其与读取器的通信,或者指示读取器限制读取器的操作方面。

    Methods of Making High Impact Polystyrene
    32.
    发明申请
    Methods of Making High Impact Polystyrene 有权
    制造高抗冲聚苯乙烯的方法

    公开(公告)号:US20120108747A1

    公开(公告)日:2012-05-03

    申请号:US13249383

    申请日:2011-09-30

    CPC classification number: C08F2/001 C08F212/08 C08F279/02 C08L9/06 C08L2555/84

    Abstract: A process for producing high impact polystyrene including feeding at least one vinyl aromatic monomer, an elastomer, and a free radical initiator to a first linear flow reactor to form a reaction mixture. Polymerizing the reaction mixture in the first linear flow reactor to a point below the point at which phase inversion occurs to produce a first polymerization mixture and feeding the first polymerization mixture from the first linear flow reactor to a second linear flow reactor. Polymerizing the reaction mixture in the second linear flow reactor to at least a phase inversion point of the mixture to produce a second polymerization mixture and feeding the second polymerization mixture from the second linear flow reactor to at least a third linear flow reactor for post-inversion polymerization of the second polymerization mixture. The product stream can have an ESCR value of at least 10% toughness retained with less than 10 wt % rubber content.

    Abstract translation: 一种生产高抗冲聚苯乙烯的方法,包括将至少一种乙烯基芳族单体,弹性体和自由基引发剂进料至第一线性流动反应器以形成反应混合物。 将第一线性流动反应器中的反应混合物聚合到低于发生相转移点的点以产生第一聚合混合物并将第一聚合混合物从第一线性流动反应器进料到第二线性流动反应器。 将第二线性流动反应器中的反应混合物聚合到混合物的至少相转变点,以产生第二聚合混合物,并将第二聚合混合物从第二线性流动反应器进料到至少第三线性流动反应器用于后反转 第二聚合混合物的聚合。 产品流的ESCR值可以保持至少10%的韧性,橡胶含量小于10wt%。

    Synthesis with Metal Methacrylates as Comonomers
    35.
    发明申请
    Synthesis with Metal Methacrylates as Comonomers 失效
    金属甲基丙烯酸酯作为共聚单体合成

    公开(公告)号:US20100168345A1

    公开(公告)日:2010-07-01

    申请号:US12346739

    申请日:2008-12-30

    Abstract: A method for the in-situ preparation of an ionic comonomer from its chemical precursors, prepared in a solution of styrene monomer is disclosed. In one embodiment, the ionic comonomer is zirconium methacrylate, Zr(MA)4 or zirconyl methacrylate, ZrO(MA)2, or a combination thereof, and zirconium carbonate hydroxide oxide, ZrCO3(OH)2.ZrO2, and methacrylic acid, CH2═C(CH3)—COOH, are used as precursors used for its in-situ preparation.

    Abstract translation: 公开了一种在苯乙烯单体溶液中制备的其化学前体原位制备离子共聚单体的方法。 在一个实施方案中,离子共聚单体是甲基丙烯酸锆,Zr(MA)4或甲基丙烯酸锆酯,ZrO(MA)2或其组合,和碳酸氢氧化锆,ZrCO 3(OH)2 .ZrO 2和甲基丙烯酸,CH 2 = C(CH 3)-COOH,用作其原位制备用的前体。

    SINGLE RF OSCILLATOR SINGLE-SIDE BAND MODULATION FOR RFID READERS USING TONE INSERTION DURING READER RECEPTION
    36.
    发明申请
    SINGLE RF OSCILLATOR SINGLE-SIDE BAND MODULATION FOR RFID READERS USING TONE INSERTION DURING READER RECEPTION 有权
    单片射频振荡器用于RFID读取器的单边调制在读卡器接收期间使用音频插入

    公开(公告)号:US20060199551A1

    公开(公告)日:2006-09-07

    申请号:US11073340

    申请日:2005-03-04

    CPC classification number: H04B1/68 H03C1/60 H03C2200/007

    Abstract: A transmitter upconverts a SSB data signal during a first operational mode using a RF upconverting signal having a frequency that is offset from a center frequency of a channel (ωC) by an amount that depends on the data signal's SSB bandwidth (ωM). In a second operational mode, the transmitter upconverts a tone signal having a frequency ωM using the same RF upconverting signal. The upconverted tone signal can be used as a continuous wave (CW) carrier signal having a frequency ωC. The transmitter has a single RF oscillator to output both a SSB signal centered at frequency ωC during the first mode and a carrier signal of frequency ωC during the second mode.

    Abstract translation: 发射机在第一操作模式期间使用具有偏离信道的中心频率(ω)的频率的RF上变频信号来上变频SSB数据信号,该频率取决于数据信号 SSB带宽(Ω-M)。 在第二操作模式中,发射器使用相同的RF上变频信号来上变频具有ωωM的频率信号。 上转换音调信号可以用作具有频率ωC的连续波(CW)载波信号。 发射机具有单个RF振荡器,以在第一模式期间输出以频率ω-C'为中心的SSB信号,并且在第二模式期间输出频率ωC'C的载波信号。

    Adaptable bandwidth RFID tags
    39.
    发明申请
    Adaptable bandwidth RFID tags 有权
    适应带宽RFID标签

    公开(公告)号:US20050225435A1

    公开(公告)日:2005-10-13

    申请号:US10823991

    申请日:2004-04-13

    CPC classification number: G06K19/0723

    Abstract: RFID tags, tag circuits, and methods adapting the reception bandwidth. A tag has a decoder for decoding a first received wireless signal subject to a reception bandwidth setting. The tag also has a selector switch for transitioning to a different setting, such as by switching to using a different filter. A subsequently received second signal is decoded subject to the new reception bandwidth setting.

    Abstract translation: RFID标签,标签电路和适应接收带宽的方法。 标签具有解码器,用于对接收带宽设置的第一接收无线信号进行解码。 标签还具有用于转换到不同设置的选择器开关,例如通过切换到使用不同的滤镜。 经过新的接收带宽设置,随后接收的第二信号被解码。

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