Programmable antenna assembly and applications thereof
    81.
    发明申请
    Programmable antenna assembly and applications thereof 有权
    可编程天线组件及其应用

    公开(公告)号:US20080273579A1

    公开(公告)日:2008-11-06

    申请号:US11799683

    申请日:2007-05-02

    IPC分类号: H04B1/38

    摘要: A programmable antenna assembly includes a configurable antenna structure, a configurable antenna interface, and a control module. The configurable antenna structure includes a plurality of antenna elements that, in response to an antenna configuration signal, are configured elements into at least one antenna. The configurable antenna interface module is coupled to the at least one antenna and, based on an antenna interface control signal, provides at least one of an impedance matching circuit and a bandpass filter. The control module is coupled to generate the antenna configuration signal and the antenna interface control signal in accordance with a first frequency band and a second frequency band such that the at least one antenna facilitates at least one of transmitting and receiving a first RF signal within the first frequency band and facilitates at least one of transmitting and receiving a second RF signal within the second frequency band.

    摘要翻译: 可编程天线组件包括可配置天线结构,可配置天线接口和控制模块。 可配置天线结构包括多个天线元件,其响应天线配置信号被配置成至少一个天线的元件。 可配置天线接口模块耦合到至少一个天线,并且基于天线接口​​控制信号,提供阻抗匹配电路和带通滤波器中的至少一个。 控制模块被耦合以根据第一频带和第二频带产生天线配置信号和天线接口控制信号,使得所述至少一个天线便利于发送和接收第一RF信号中的至少一个 第一频带,并且促进在第二频带内发送和接收第二RF信号中的至少一个。

    DYNAMIC RF FRONT END
    82.
    发明申请
    DYNAMIC RF FRONT END 有权
    动态RF前端

    公开(公告)号:US20080238688A1

    公开(公告)日:2008-10-02

    申请号:US12048748

    申请日:2008-03-14

    IPC分类号: G08B13/14

    摘要: A dynamic radio frequency (RF) front end includes an antenna array, a power amplifier structure, and a low noise amplifier structure. The power amplifier structure generates a plurality of outbound RF signals from an outbound RF signal and provides the plurality of outbound RF signals to the antenna array. Each of the plurality of outbound RF signals has a different transmit phase rotation. The low noise amplifier structure receives a plurality of inbound RF signals from the antenna array and outputs one of the plurality of inbound RF signals based on a favorable phase relationship with respect to the outbound RF signal. Each of the plurality of inbound RF signals has a different receive phase rotation.

    摘要翻译: 动态射频(RF)前端包括天线阵列,功率放大器结构和低噪声放大器结构。 功率放大器结构从出站RF信号产生多个出站RF信号,并将多个出站RF信号提供给天线阵列。 多个出站RF信号中的每一个具有不同的发射相位旋转。 低噪声放大器结构从天线阵列接收多个入射RF信号,并且基于相对于出站RF信号的有利相位关系输出多个入站RF信号中的一个。 多个入站RF信号中的每一个具有不同的接收相位旋转。

    RFID READER WITH ACTIVE BLOCKING REJECTION IN RECEIVER
    83.
    发明申请
    RFID READER WITH ACTIVE BLOCKING REJECTION IN RECEIVER 审中-公开
    RFID接收器中具有主动阻塞的RFID读写器

    公开(公告)号:US20080238624A1

    公开(公告)日:2008-10-02

    申请号:US12040685

    申请日:2008-02-29

    IPC分类号: H04Q5/22 H04B1/38

    摘要: An RFID reader is operable to receive an inbound RF signal from an RFID tag during transmission of an outbound RF signal. The inbound RF signal from the RFID tag is a modulated, backscattered signal that includes a desired RF signal component and a blocking RF signal component. The receiver section of the RFID reader includes a preprocessing module operable to process the inbound RF signal. The preprocessing module includes an adjustable attenuation module operable to attenuate the inbound RF signal to produce an attenuated inbound RF signal and an active blocking rejection module operable to increase a ratio of the desired RF signal component to blocking RF signal component in the attenuated inbound RF signal.

    摘要翻译: RFID读取器可操作以在传出出站RF信号期间从RFID标签接收入站RF信号。 来自RFID标签的入站RF信号是调制后向散射信号,其包括期望的RF信号分量和阻塞RF信号分量。 RFID读取器的接收器部分包括可操作以处理入站RF信号的预处理模块。 预处理模块包括可调衰减模块,其可操作以衰减入站RF信号以产生衰减的入站RF信号,以及主动阻塞阻止模块,其可操作以增加所述衰减入站RF信号中所需RF信号分量与阻塞RF信号分量的比率 。

    METHOD AND SYSTEM FOR USING A BLUETOOTH PLL TO DRIVE FM TRANSMIT, FM RECEIVE, BLUETOOTH, AND NFC FUNCTIONS
    84.
    发明申请
    METHOD AND SYSTEM FOR USING A BLUETOOTH PLL TO DRIVE FM TRANSMIT, FM RECEIVE, BLUETOOTH, AND NFC FUNCTIONS 有权
    使用蓝牙PLL驱动FM发送,FM接收,蓝牙和NFC功能的方法和系统

    公开(公告)号:US20080233874A1

    公开(公告)日:2008-09-25

    申请号:US11754768

    申请日:2007-05-29

    IPC分类号: H04B7/00

    摘要: Aspects of a method and system for using a Bluetooth® PLL/LO to drive FM Transmit, FM Receive, Bluetooth, and NFC functions. A Bluetooth® PLL/LO may be utilized to generate Bluetooth® signal that comprise I and Q components for use in Bluetooth® communication. The Bluetooth® signals may then be utilized by a DDFS to generate FM radio I and Q signals for FM radio reception and/or transmission. The Bluetooth® signals may also be utilized by a second DDFS to generate signals for near field communication (NFC) transmission and/or reception. The Bluetooth® signals may be kept at the same frequency, or reduced in frequency, for use in clocking the DDFS. A frequency word may also be utilized to clock the DDFS. The outputs of each DDFS may be a constant frequency while the inputs to each DDFS may vary in frequency.

    摘要翻译: 使用蓝牙PLL / LO驱动FM发送,FM接收,蓝牙和NFC功能的方法和系统的方面。 可以使用蓝牙PLL / LO来产生包括用于蓝牙(R)通信的I和Q组件的蓝牙信号。 然后可以由DDFS利用蓝牙信号来产生用于FM无线电接收和/或传输的FM无线电I和Q信号。 蓝牙信号也可以由第二DDFS用于生成用于近场通信(NFC)传输和/或接收的信号。 蓝牙信号可以保持在相同的频率或频率上降低,以用于计时DDFS。 也可以使用频率字来对DDFS进行时钟。 每个DDFS的输出可能是一个恒定的频率,而每个DDFS的输入频率可能会有所不同。

    Near field RFID system with multiple reader coils
    86.
    发明授权
    Near field RFID system with multiple reader coils 有权
    具有多个读取器线圈的近场RFID系统

    公开(公告)号:US09379785B2

    公开(公告)日:2016-06-28

    申请号:US12983454

    申请日:2011-01-03

    摘要: A near field RFID system includes an RFID reader and an RFID tag. The RFID reader includes a transmit path and a receive path, wherein the transmit path includes: an encoding section coupled to convert data into encoded data; a digital to analog conversion module coupled to convert the encoded data into an analog encoded signal; a power amplifier coupled to amplify the analog encoded signal; and a plurality of coils coupled to generate a plurality of electromagnetic fields from the analog encoded signal. The RFID tag that includes: a coil coupled to generate a current and a recovered signal from at least one of the plurality of electromagnetic fields; a power recovery circuit coupled to generate a voltage from the current; and a data processing section coupled to process the recovered signal, wherein the data processing section is powered via the voltage.

    摘要翻译: 近场RFID系统包括RFID读取器和RFID标签。 RFID读取器包括发送路径和接收路径,其中发送路径包括:耦合以将数据转换为编码数据的编码部分; 耦合到将所述编码数据转换为模拟编码信号的数模转换模块; 功率放大器,被耦合以放大所述模拟编码信号; 以及耦合以从所述模拟编码信号产生多个电磁场的多个线圈。 RFID标签包括:线圈,其被耦合以从多个电磁场中的至少一个产生电流和恢复的信号; 功率恢复电路,其耦合以从电流产生电压; 以及数据处理部分,其耦合以处理恢复的信号,其中所述数据处理部分经由所述电压供电。

    Multi-mode RFID tag architecture
    88.
    发明授权
    Multi-mode RFID tag architecture 有权
    多模RFID标签架构

    公开(公告)号:US08237566B2

    公开(公告)日:2012-08-07

    申请号:US13234632

    申请日:2011-09-16

    IPC分类号: G08B13/14

    摘要: A multi-mode RFID tag includes a power generating and signal detection module, a baseband processing module, a transmit section, a configurable coupling circuit, and an antenna section. In near field mode, the configurable coupling circuit is operable to couple the transmit section to a coil or inductor in the configurable coupling circuit to transmit an outbound transmit signal using electromagnetic or inductive coupling to an RFID reader. In far field mode, the configurable coupling circuit is operable to couple the transmit section to the antenna section, and the multi-mode RFID tag then utilizes a back-scattering RF technology to transmit the outbound transmit signal to RFID readers.

    摘要翻译: 多模式RFID标签包括发电和信号检测模块,基带处理模块,发送部分,可配置耦合电路和天线部分。 在近场模式中,可配置耦合电路可操作以将发射部分耦合到可配置耦合电路中的线圈或电感器,以使用电磁耦合或电感耦合传输到RFID读取器的出站发射信号。 在远场模式下,可配置耦合电路可操作以将发射部分耦合到天线部分,然后多模式RFID标签利用反向散射RF技术将出站发射信号传输到RFID读取器。

    Multi-mode RFID tag architecture
    90.
    发明授权
    Multi-mode RFID tag architecture 有权
    多模RFID标签架构

    公开(公告)号:US08022825B2

    公开(公告)日:2011-09-20

    申请号:US12695169

    申请日:2010-01-28

    IPC分类号: G08B13/14

    摘要: A multi-mode RFID tag includes a power generating and signal detection module, a baseband processing module, a transmit section, a configurable coupling circuit, and an antenna section. In near field mode, the configurable coupling circuit is operable to couple the transmit section to a coil or inductor in the configurable coupling circuit to transmit an outbound transmit signal using electromagnetic or inductive coupling to an RFID reader. In far field mode, the configurable coupling circuit is operable to couple the transmit section to the antenna section, and the multi-mode RFID tag then utilizes a back-scattering RF technology to transmit the outbound transmit signal to RFID readers.

    摘要翻译: 多模式RFID标签包括发电和信号检测模块,基带处理模块,发送部分,可配置耦合电路和天线部分。 在近场模式中,可配置耦合电路可操作以将发射部分耦合到可配置耦合电路中的线圈或电感器,以使用电磁耦合或电感耦合传输到RFID读取器的出站发射信号。 在远场模式下,可配置耦合电路可操作以将发射部分耦合到天线部分,然后多模式RFID标签利用反向散射RF技术将出站发射信号传输到RFID读取器。