Preparation of metallic comonomers for polystyrene
    1.
    发明授权
    Preparation of metallic comonomers for polystyrene 有权
    制备聚苯乙烯的金属共聚单体

    公开(公告)号:US08829114B2

    公开(公告)日:2014-09-09

    申请号:US13306088

    申请日:2011-11-29

    CPC classification number: C08F230/04 C08F212/08 C08F220/06 C08F230/00

    Abstract: A method for making a polystyrene ionomer comprises: preparing a metallic comonomer within styrene monomer to form a reaction mixture; and placing the reaction mixture under conditions suitable for the formation of a polymer composition. The metallic comonomer can be a metal acrylate, formed by contacting a metal complex and an acrylate precursor.

    Abstract translation: 制备聚苯乙烯离聚物的方法包括:在苯乙烯单体内制备金属共聚单体以形成反应混合物; 并将反应混合物置于适于形成聚合物组合物的条件下。 金属共聚单体可以是通过使金属络合物和丙烯酸酯前体接触而形成的金属丙烯酸酯。

    DUAL-CORE COMPRISING ZERO GRADIENT CENTER AND POSITIVE GRADIENT OUTER CORE LAYER
    2.
    发明申请
    DUAL-CORE COMPRISING ZERO GRADIENT CENTER AND POSITIVE GRADIENT OUTER CORE LAYER 审中-公开
    包含零级中心和正梯度外核层的双核

    公开(公告)号:US20120264541A1

    公开(公告)日:2012-10-18

    申请号:US13421924

    申请日:2012-03-16

    Abstract: A golf ball including an inner core having a geometric center and a first outer surface, the inner core being formed from a first substantially homogenous rubber composition, and an outer core layer formed from a second substantially homogenous rubber composition, the outer core layer having a second outer surface. An inner cover layer is formed over the core and includes an ionomeric material. An outer cover layer is formed over the inner cover layer and includes a castable polyurea or a castable polyurethane. The first outer surface has a hardness of up to about 20 Shore C less than a hardness at the geometric center to define a negative hardness gradient inner core and the second outer surface has a hardness of up to 18 Shore C greater than the geometric center hardness to define a positive gradient outer core layer and a shallow positive hardness gradient core.

    Abstract translation: 一种高尔夫球,包括具有几何中心和第一外表面的内芯,所述内芯由第一基本上均匀的橡胶组合物形成,所述内芯层由第二基本均匀的橡胶组合物形成,所述外芯层具有 第二外表面。 在芯上形成内覆盖层,并且包括离聚物材料。 外覆盖层形成在内覆盖层上并且包括浇注聚脲或浇注聚氨酯。 第一外表面的硬度比几何中心处的硬度高约20肖氏硬度,以确定负硬度梯度内芯,第二外表面的硬度高于几何中心硬度高达18肖氏C 定义正梯度外芯层和浅正正硬度梯度芯。

    RFID SYSTEM COMPONENTS IMPLEMENTING ADJUSTED BACKSCATTER CALCULATIONS AND METHODS
    5.
    发明申请
    RFID SYSTEM COMPONENTS IMPLEMENTING ADJUSTED BACKSCATTER CALCULATIONS AND METHODS 有权
    RFID系统组件实施调整后的计算机和方法

    公开(公告)号:US20080006702A2

    公开(公告)日:2008-01-10

    申请号:US11114614

    申请日:2005-04-25

    CPC classification number: G06K19/0723 G06K7/0008 H03J1/0058

    Abstract: RFID system components, such as readers and tags, communicate by a reader transmitting waveforms that encode a calibration symbol and a divide ratio. Tags include a processor to determine a backscatter link period result by dividing a count value representing the calibration symbol by the divide ratio and adding an adjustment. Tags modulate a backscatter waveform that includes symbols using a link period determined from the result.

    Abstract translation: 诸如读取器和标签的RFID系统组件由读取器传送,该读取器发送编码校准符号和分频比的波形。 标签包括通过将表示校准符号的计数值除以除法比率并且添加调整来确定反向散射链路周期结果的处理器。 标签使用从结果确定的链路周期调制包括符号的反向散射波形。

    RFID READERS SYSTEMS AND METHODS FOR EARLY HOPPING OUT OF A FREQUENCY CHANNEL IN THE PRESENCE OF RF INTERFERENCE
    6.
    发明申请
    RFID READERS SYSTEMS AND METHODS FOR EARLY HOPPING OUT OF A FREQUENCY CHANNEL IN THE PRESENCE OF RF INTERFERENCE 有权
    RFID读写器系统和方法在RF干扰存在的情况下早期被频繁地通道

    公开(公告)号:US20070296603A1

    公开(公告)日:2007-12-27

    申请号:US11849737

    申请日:2007-09-04

    CPC classification number: G06K7/0008 G06K7/10069 G06K7/10198

    Abstract: RFID readers, systems, and methods are provided for overcoming the effects of RF interference. While a system is communicating in a channel, RF interference is monitored. If it is low, then hopping to another channel is performed according to an ordinary decision. But if interference is high, then hopping out to another channel can be earlier than would be dictated by the ordinary decision under the same circumstances. The earlier hopping out can result in diminishing communication in channels with a lot of RF interference.

    Abstract translation: 提供RFID读取器,系统和方法来克服RF干扰的影响。 当系统正在通道中进行通信时,会监视射频干扰。 如果为低,则根据普通决定执行到另一信道的跳频。 但是,如果干扰较大,那么跳出另一个频道可能会比同样情况下的普通决策所规定的更早。 较早的跳出可能导致频道中的通信频繁减少,具有大量的射频干扰。

    RFID READER Q-PARAMETER AIDED BY RF POWER MEASUREMENT
    7.
    发明申请
    RFID READER Q-PARAMETER AIDED BY RF POWER MEASUREMENT 有权
    RFID读写器Q参数由RF功率测量辅助

    公开(公告)号:US20070164851A1

    公开(公告)日:2007-07-19

    申请号:US11622686

    申请日:2007-01-12

    Applicant: Scott Cooper

    Inventor: Scott Cooper

    CPC classification number: H04W99/00 H04W74/0875

    Abstract: RFID tag responses are detected by an RFID reader system. The tag response may be detected based on a reference measurement during a tag silent period and another one during the tag response. This helps determine whether a slot is empty or occupied, in a slotted aloha algorithm. The result is reported to the Q-algorithm for a better decision.

    Abstract translation: RFID标签响应由RFID读取器系统检测。 标签响应可以在标签静默期期间基于参考测量来检测,另一个在标签响应期间被检测。 这有助于确定一个插槽是空的还是占用的。 结果报告给Q算法以获得更好的决定。

    Inventorying RFID tags by employing a query parameter Q that converges heuristically
    9.
    发明申请
    Inventorying RFID tags by employing a query parameter Q that converges heuristically 审中-公开
    通过采用启发式收敛的查询参数Q来清点RFID标签

    公开(公告)号:US20050280507A1

    公开(公告)日:2005-12-22

    申请号:US11210573

    申请日:2005-08-24

    CPC classification number: G06K7/0008 G06K7/10019 G06K7/10297

    Abstract: An RFID reader inventories a population of tags. The reader evaluates responses from tags by categorizing them in slots. As tags are inventoried, the number of slots based on a Q-parameter is reduced. The reader addresses the tags by communicating a Q1 value for the Q parameter, generates first contents from replies received from the tags, and computes a first merit statistic based on the first contents. Then, the reader repeats the process with a Q2 value. Upon computing the first and the second merit statistics, the reader determines a Q3 value for the Q parameter. If the Q3 value is substantially equal to the Q1 value, the reader continues to receive the second replies without communicating the Q3 value. If the Q3 value is different from the Q2 value, the reader uses the Q3 value for another round of iteration heuristically converging on an optimum Q value.

    Abstract translation: RFID阅读器可以存储大量的标签。 读者通过在插槽中对它们进行分类来评估标签的响应。 随着标签被盘点,减少了基于Q参数的槽数。 读取器通过传送Q参数的Q1值来寻址标签,从从标签接收的回复中生成第一内容,并且基于第一内容计算第一优值统计量。 然后,读者会用Q2值重复该过程。 在计算第一和第二优点统计量时,读取器确定Q参数的Q3值。 如果Q3值基本上等于Q1值,读卡器将继续接收第二个答复而不通信Q3值。 如果Q3值与Q2值不同,则阅读器会使用Q3值进行另一轮迭代,以启发式收敛于最佳Q值。

    RFID joint acquisition of time sync and timebase
    10.
    发明申请
    RFID joint acquisition of time sync and timebase 有权
    RFID联合获取时间同步和时基

    公开(公告)号:US20050269408A1

    公开(公告)日:2005-12-08

    申请号:US11136948

    申请日:2005-05-24

    CPC classification number: G06K7/0008

    Abstract: Systems and methods to determine timebase and timing (i.e., time sync) of received signals in RFID systems. Multiple matched filters corresponding to multiple timebases are used to receive the preambles of signals received from RFID tags. The multiple matched filters define a range of expected timebases of the received signals. The matched filter with the maximum output signal peak is used to derive the timebase and timing of the received signal. Viterbi techniques can be used in determining the timebase and timing to incorporate a portion of the data signal in addition to the preamble. Reconfigurable matched filters can be used so that after a preliminary timebase is determined as described above, the matched filters can be reconfigured to define a new smaller range centered about the preliminary timebase. This allows the timebase to be determined with finer resolution when another preamble portion is received.

    Abstract translation: 确定RFID系统中接收信号的时基和定时(即,时间同步)的系统和方法。 对应于多个时基的多个匹配滤波器被用于接收从RFID标签接收的信号的前导码。 多个匹配滤波器定义了接收信号的预期时基的范围。 具有最大输出信号峰值的匹配滤波器用于导出接收信号的时基和定时。 除了前导码之外,维特比技术可用于确定并入数据信号的一部分的时基和定时。 可以使用可重配置匹配滤波器,使得在如上所述确定初步时基之后,可以重新配置匹配滤波器以定义以初步时基为中心的新的较小范围。 这允许当接收另一个前同步码部分时,以更精细的分辨率确定时基。

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