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    Radio frequency identification architecture
    32.
    发明申请
    Radio frequency identification architecture 有权
    射频识别架构

    公开(公告)号：US20070194933A1

    公开(公告)日：2007-08-23

    申请号：US11785215

    申请日：2007-04-16

    申请人： Wayne Shanks ,  William Bandy ,  Michael Arneson ,  Kevin Powell

    发明人： Wayne Shanks ,  William Bandy ,  Michael Arneson ,  Kevin Powell

    IPC分类号： G08B13/14

    CPC分类号： G06K19/07749 ,  G06K7/0008 ,  G06K7/10039 ,  G06K7/10069 ,  G06K7/10108 ,  G06K7/10356 ,  G06K17/00 ,  G06K19/0713 ,  G06K19/0723 ,  G06K19/07767 ,  G08B13/2485 ,  G11C5/142 ,  H04L7/0331

    摘要： A radio frequency identification (RFID) architecture is described. RFID tags are interrogated by a reader, which may be located in a network of readers. The reader transmits symbols to the tags. Tags respond to the interrogations with symbols that each represent one or more bits of data. An RFID tag includes an antenna pad, a receiver, a state machine, and a modulator. The receiver is coupled to the antenna pad. The receiver receives a symbol from the antenna pad and outputs a received signal. The state machine is configured to determine a response symbol from the received signal and an operating state of the tag. The modulator is coupled to the antenna pad. The modulator is configured to backscatter modulate the received symbol with the response symbol. The modulator is configured to output the backscatter modulated symbol to the antenna pad.

    摘要翻译： 描述射频识别（RFID）架构。 RFID标签被读取器询问，读取器可以位于读取器网络中。 读卡器将符号发送到标签。 标签响应具有每个表示一个或多个数据位的符号的询问。 RFID标签包括天线垫，接收器，状态机和调制器。 接收器耦合到天线焊盘。 接收机从天线焊盘接收符号并输出接收信号。 状态机被配置为从接收到的信号和标签的操作状态确定响应符号。 调制器耦合到天线垫。 调制器被配置为使用响应符号对所接收的符号进行后向散射调制。 调制器被配置为将后向散射调制符号输出到天线焊盘。

    Method and apparatus for signal processing in RFID receivers
    33.
    发明申请
    Method and apparatus for signal processing in RFID receivers 审中-公开
    RFID接收机信号处理方法和装置

    公开(公告)号：US20070177694A1

    公开(公告)日：2007-08-02

    申请号：US11332220

    申请日：2006-01-17

    申请人： Yuri Okunev ,  Kevin Powell

    发明人： Yuri Okunev ,  Kevin Powell

    IPC分类号： H04L27/22

    CPC分类号： H04L27/14

    摘要： The present invention provides methods and apparatuses for demodulation and decoding of backscattered RFID tag signals, represented by their in-phase and quadrature components at the output of the demodulator in the receiver portion of a reader interrogator. Correlation coefficients for the in-phase and quadrature components of the received signal are calculated over a shifted bit interval. Performing a correlation over a shifted bit interval relative to the real bit interval allows the base-band receiver to involve a two-bit interval in making a decision about each transmitted bit. In contrast, in a conventional decoding algorithm, a single bit interval is involved in the decision-making process. Thus, the current method provides a 3 dB energy gain compared to the conventional method. A single zero-mean reference signal is used to compute correlation coefficients, eliminating constant components of the received signal, and simplifying digital implementation of the base-band receiver. A value of the output data is determined based on the combined correlation coefficients.

    摘要翻译： 本发明提供了用于在读取器询问器的接收机部分中的解调器的输出端由其同相和正交分量表示的背散射RFID标签信号的解调和解码的方法和装置。 在移位的位间隔上计算接收信号的同相和正交分量的相关系数。 在相对于实际比特间隔的移位比特间隔执行相关性允许基带接收机涉及两比特间隔以作出关于每个发送比特的决定。 相比之下，在传统的解码算法中，在决策过程中涉及单个位间隔。 因此，与常规方法相比，当前的方法提供了3dB的能量增益。 使用单个零均值参考信号来计算相关系数，消除接收信号的常数分量，并简化基带接收机的数字实现。 基于组合的相关系数确定输出数据的值。

    Dense reader system with improved listen before talk communications
    34.
    发明申请
    Dense reader system with improved listen before talk communications 审中-公开
    密集的阅读器系统具有改善的听前通话功能

    公开(公告)号：US20070139162A1

    公开(公告)日：2007-06-21

    申请号：US11312494

    申请日：2005-12-21

    申请人： William Bandy ,  Kevin Powell

    发明人： William Bandy ,  Kevin Powell

    IPC分类号： H04Q5/22

    CPC分类号： G06K7/0008

    摘要： Methods, systems and apparatuses for RFID readers forming a reader network are described. In an aspect of the present invention, readers communicate according to a “Listen Before Talk” (LBT) protocol to avoid undesirable interference.

    摘要翻译： 描述了形成读取器网络的RFID阅读器的方法，系统和装置。 在本发明的一个方面中，读取器根据“听前侦听”（LBT）协议通信以避免不期望的干扰。

    Radio frequency identification tag antenna configurations
    36.
    发明申请
    Radio frequency identification tag antenna configurations 有权
    射频识别标签天线配置

    公开(公告)号：US20050174239A1

    公开(公告)日：2005-08-11

    申请号：US11099473

    申请日：2005-04-06

    申请人： Wayne Shanks ,  William Bandy ,  Michael Arneson ,  Kevin Powell

    发明人： Wayne Shanks ,  William Bandy ,  Michael Arneson ,  Kevin Powell

    IPC分类号： G06K17/00 ,  G06K7/00 ,  G06K19/07 ,  G11C5/14 ,  H04B1/59 ,  H04B5/02 ,  H04L7/033 ,  G08B13/14

    CPC分类号： G06K19/07749 ,  G06K7/0008 ,  G06K7/10039 ,  G06K7/10069 ,  G06K7/10108 ,  G06K7/10356 ,  G06K17/00 ,  G06K19/0713 ,  G06K19/0723 ,  G06K19/07767 ,  G08B13/2485 ,  G11C5/142 ,  H04L7/0331

    摘要： A radio frequency identification (RFID) architecture is described. RFID tags are interrogated by a reader, which may be located in a network of readers. The reader transmits symbols to the tags. Tags respond to the interrogations with symbols that each represent one or more bits of data. An RFID tag includes an antenna pad, a receiver, a state machine, and a modulator. The receiver is coupled to the antenna pad. The receiver receives a symbol from the antenna pad and outputs a received signal. The state machine is configured to determine a response symbol from the received signal and an operating state of the tag. The modulator is coupled to the antenna pad. The modulator is configured to backscatter modulate the received symbol with the response symbol. The modulator is configured to output the backscatter modulated symbol to the antenna pad.

    摘要翻译： 描述射频识别（RFID）架构。 RFID标签被读取器询问，读取器可以位于读取器网络中。 读卡器将符号发送到标签。 标签响应具有每个表示一个或多个数据位的符号的询问。 RFID标签包括天线垫，接收器，状态机和调制器。 接收器耦合到天线焊盘。 接收机从天线焊盘接收符号并输出接收信号。 状态机被配置为从接收到的信号和标签的操作状态确定响应符号。 调制器耦合到天线垫。 调制器被配置为使用响应符号对所接收的符号进行后向散射调制。 调制器被配置为将后向散射调制符号输出到天线焊盘。

    System and method for performing analysis on word variants
    37.
    发明申请
    System and method for performing analysis on word variants 有权
    用于对单词变体执行分析的系统和方法

    公开(公告)号：US20050091033A1

    公开(公告)日：2005-04-28

    申请号：US10804883

    申请日：2004-03-19

    申请人： Rene Valdes ,  Maria del Mar Gines Marin ,  Kevin Powell ,  Andrea Jessee

    发明人： Rene Valdes ,  Maria del Mar Gines Marin ,  Kevin Powell ,  Andrea Jessee

    IPC分类号： G06F17/27 ,  G06F17/28

    CPC分类号： G06F17/2755 ,  G06F17/273 ,  G06F17/2735

    摘要： A computer-readable medium stores a first lexicon data structure for lexicon words. The first data structure includes a host form variant field containing a host form variant such as a clitic host form variant, a host form field containing the host form of the host form variant (only present if the forms differ) such as a clitic host verbal form, and a verification field indicative of whether the host form variant is a valid word. The first data structure also includes a segment association field containing data or segmentation bits associating the host form variant with certain types of attachment entries in the lexicon, which also contain data or segmentation bits, to define valid combinations between the host form variant and at least one of the attachment entries in the lexicon. A second lexicon data structure for each of the attachment entries in the lexicon is also stored.

    摘要翻译： 计算机可读介质存储用于词典词的第一词典数据结构。 第一数据结构包括主机形式变体字段，其包含主体形式变体，例如中性主机形式变体，主机形式字段包含主机形式变体的主机形式（仅在形式不同的情况下存在），例如中立主机语言 表单和指示主机形式变体是否是有效字的验证字段。 第一数据结构还包括分段关联字段，其包含将主机形式变体与词汇中的某些类型的附件条目相关联的数据或分段位，所述附加条目还包含数据或分段位，以在主机形式变体和至少 词典中的附件条目之一。 还存储了词典中每个附件条目的第二个词典数据结构。

    Combined wall mounted debris catcher and materials holder
    39.
    外观设计
    Combined wall mounted debris catcher and materials holder 有权

    公开(公告)号：USD1046361S1

    公开(公告)日：2024-10-08

    申请号：US29811200

    申请日：2021-10-12

    申请人： Kevin Powell

    设计人： Kevin Powell

    摘要： FIG. 1 is a front plan view of a first embodiment of a combined wall mounted debris catcher and materials holder;
    FIG. 2 is a rear plan view thereof;
    FIG. 3 is a right side view thereof;
    FIG. 4 is a left side view thereof;
    FIG. 5 is a top plan view thereof;
    FIG. 6 is a bottom plan view thereof;
    FIG. 7 is a front plan view of a second embodiment of a combined wall mounted debris catcher and materials holder;
    FIG. 8 is a rear plan view thereof;
    FIG. 9 is a right side view thereof;
    FIG. 10 is a left side view thereof;
    FIG. 11 is a top plan view thereof;
    FIG. 12 is a bottom plan view thereof;
    FIG. 13 is a front plan view of a third embodiment of a combined wall mounted debris catcher and materials holder;
    FIG. 14 is a rear plan view thereof;
    FIG. 15 is a right side view thereof;
    FIG. 16 is a left side view thereof;
    FIG. 17 is a top plan view thereof;
    FIG. 18 is a bottom plan view thereof;
    FIG. 19 is a front plan view of a fourth embodiment of a combined wall mounted debris catcher and materials holder;
    FIG. 20 is a rear plan view thereof;
    FIG. 21 is a right side view thereof;
    FIG. 22 is a left side view thereof;
    FIG. 23 is a top plan view thereof; and,
    FIG. 24 is a bottom plan view thereof.

    Combined wall mounted debris catcher and materials holder
    40.
    外观设计
    Combined wall mounted debris catcher and materials holder 有权

    公开(公告)号：USD1004876S1

    公开(公告)日：2023-11-14

    申请号：US29811202

    申请日：2021-10-12

    申请人： Kevin Powell

    设计人： Kevin Powell

    摘要： FIG. 1 is an upper front perspective view of a combined wall mounted debris catcher and materials holder, showing my new design;
    FIG. 2 is a front plan view thereof;
    FIG. 3 is a rear plan view thereof;
    FIG. 4 is a right side view thereof;
    FIG. 5 is a left side view thereof;
    FIG. 6 is a top plan view thereof; and,
    FIG. 7 is a bottom plan view thereof.