RFID READERS SYSTEMS AND METHODS FOR HOPPING AWAY FROM A FREQUENCY CHANNEL WITH RF INTERFERENCE
    21.
    发明申请
    RFID READERS SYSTEMS AND METHODS FOR HOPPING AWAY FROM A FREQUENCY CHANNEL WITH RF INTERFERENCE 有权
    RFID读写器系统和方法用于从具有RF干扰的频道通道中跳出

    公开(公告)号:US20070296590A1

    公开(公告)日:2007-12-27

    申请号:US11849804

    申请日:2007-09-04

    CPC classification number: G06K7/0008 G06K7/10069 G06K7/10198 G06K19/0723

    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 the next channel to be hopped onto is chosen in an unbiased manner. But if interference is high, then the next channel to be hopped onto is chosen in a biased manner that disfavors at least one channel over another, in view of the detected interference. The choice of the next channel can thus 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。 如果它是低的,那么要跳过的下一个通道是以不偏不倚的方式选择的。 但是如果干扰较高,则考虑到检测到的干扰,要跳过的下一个信道被选择为以偏置的方式使得至少一个信道相对于另一信道不利。 因此,下一个通道的选择可以导致具有大量RF干扰的通道中的通信减少。

    Single RF oscillator single-side band modulation for RFID readers with frequency translation and filtering
    22.
    发明申请
    Single RF oscillator single-side band modulation for RFID readers with frequency translation and filtering 有权
    用于具有频率转换和滤波的RFID读取器的单RF振荡器单边带调制

    公开(公告)号:US20060211386A1

    公开(公告)日:2006-09-21

    申请号:US11073292

    申请日:2005-03-04

    CPC classification number: G06K7/0008

    Abstract: A transmitter shifts a baseband data signal having a bandwidth of 2ωM using a tone signal having a frequency ωM, which centers a sideband of the data signal at zero frequency. The transmitter then filters the shifted signal to filter out the non-centered sideband, and then adds the tone signal to form a composite signal. The transmitter upconverts the composite signal during a first operational mode using a RF signal having a frequency ωC equal to a center frequency of a channel. In a second operational mode, the transmitter upconverts a DC level using the same RF signal. The upconverted DC level can be used as a continuous wave 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: 发射机使用具有频率ωM M M的音调信号来移动具有2omega M带宽的基带数据信号,该频率ωM是使数据信号的边带以零频率居中。 然后,发射机对移位的信号进行滤波,以滤除非中心边带,然后将音调信号相加以形成复合信号。 发射机在第一操作模式期间使用具有等于信道的中心频率的频率ω-C的RF信号来上变频合成信号。 在第二种操作模式中,发射器使用相同的RF信号上变频DC电平。 上转换的DC电平可以用作具有频率ωC的连续波载波信号。 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。

    Inventorying RFID tags by employing a query parameter Q that is adjusted for improving
    24.
    发明申请
    Inventorying RFID tags by employing a query parameter Q that is adjusted for improving 审中-公开
    通过采用调整为改进的查询参数Q来清点RFID标签

    公开(公告)号:US20050280505A1

    公开(公告)日:2005-12-22

    申请号:US11210384

    申请日:2005-08-24

    CPC classification number: G06K7/10019 G06K7/0008

    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. Next, the reader determines a Q2 value for the Q parameter, which if used in the same way would meet a preset fairway condition better than the first merit statistic. After determining the Q2 value, the reader addresses a portion of the tags by communicating the Q2 value for the Q parameter.

    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。 读者通过传送Q参数的Q 1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。 接下来,读取器确定Q参数的Q 2值,如果以相同的方式使用,则可以比第一优点统计量更好地满足预设的球道条件。 在确定Q 2值之后,读取器通过传达Q参数的Q 2值来寻址标签的一部分。

    RFID readers transmitting preambles denoting communication parameters and RFID tags interpreting the same and methods
    26.
    发明申请
    RFID readers transmitting preambles denoting communication parameters and RFID tags interpreting the same and methods 有权
    RFID读取器传输表示通信参数的前导码和解释相同的方法的RFID标签

    公开(公告)号:US20050225447A1

    公开(公告)日:2005-10-13

    申请号:US10890976

    申请日:2004-07-13

    CPC classification number: G06K7/10297 G06K7/0008

    Abstract: RFID readers transmit data to query RFID tags. Before transmitting the data, the RFID readers also transmit special preambles that inform of parameters of communication that are to be used. RFID tags decode the preamble, and adjust accordingly to optimize the communication. The preambles of the invention start with a delimiter that has a substantially constant duration regardless of the communication parameters that will be used, such as transmission data rate.

    Abstract translation: RFID读取器传输数据以查询RFID标签。 在发送数据之前,RFID阅读器还传送特殊的前导码,通知要使用的通信参数。 RFID标签对前导码进行解码,并进行相应调整以优化通信。 本发明的前序开始于具有基本上恒定的持续时间的分隔符,而与要使用的通信参数无关,例如传输数据速率。

    Bottle cap remover
    27.
    发明申请
    Bottle cap remover 审中-公开
    瓶盖去除剂

    公开(公告)号:US20050028645A1

    公开(公告)日:2005-02-10

    申请号:US10912875

    申请日:2004-08-06

    CPC classification number: B67B7/16

    Abstract: A bottle cap remover can include structure for facilitating the assembly of the bottle cap remover. The structure can include a slot established within the top portion of an interior surface of the body of the bottle cap remover. The cover of the bottle cap remover, by comparison, can include an indexing guide formed within the interior surface of the cover which can cooperatively mate with a companion guide in the body of the bottle cap remover to ensure the proper alignment of the cover with the body. Moreover, a circular trench about the interior perimeter of the cover can facilitate the mating and securing of the cover to the body of the bottle cap remover.

    Abstract translation: 瓶盖去除器可以包括便于组装瓶盖去除器的结构。 该结构可以包括建立在瓶盖拆卸器的主体的内表面的顶部内的槽。 相比之下,瓶盖拆卸器的盖可以包括形成在盖的内表面内的分度引导件,其可以与瓶盖拆卸器的主体中的伴随引导件配合地配合,以确保盖子与 身体。 此外,围绕盖的内部周边的圆形沟槽可以有助于将盖配合并固定到瓶盖拆卸器的主体。

    COMPRESSED DOMAIN ENCODING APPARATUS AND METHODS FOR USE WITH MEDIA SIGNALS
    29.
    发明申请
    COMPRESSED DOMAIN ENCODING APPARATUS AND METHODS FOR USE WITH MEDIA SIGNALS 有权
    压缩域编码装置和使用媒体信号的方法

    公开(公告)号:US20140172434A1

    公开(公告)日:2014-06-19

    申请号:US14188250

    申请日:2014-02-24

    Abstract: Apparatus, methods, and articles of manufacture for encoding a compressed media stream are disclosed. Example method of watermarking a digital media signal disclosed herein include copying compressed audio packets associated with an audio stream included in a transport stream of the digital media signal into respective frames of compressed audio data to be watermarked to include media identification information. Such example methods can also include determining whether a composition of the transport stream has changed during copying of the compressed audio packets into the respective frames of the compressed audio data. Such example methods can further include, if the composition of the transport stream has changed, writing the frames of the compressed audio data to an output stream corresponding to the digital media signal without applying a watermark to the frames of the compressed audio data.

    Abstract translation: 公开了用于编码压缩媒体流的装置,方法和制品。 对本文公开的数字媒体信号进行水印处理的示例方法包括将与包括在数字媒体信号的传输流中的音频流相关联的压缩音频分组复制到要加密水印的压缩音频数据的各个帧中以包括媒体识别信息。 这种示例性方法还可以包括在将压缩音频分组复制到压缩音频数据的各个帧期间确定传输流的组合是否已改变。 这样的示例方法还可以包括,如果传输流的组合已经改变,则将压缩音频数据的帧写入到对应于数字媒体信号的输出流,而不对压缩音频数据的帧应用水印。

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