Structure for Attaching RFID Tag and Method for Detecting RFID Tag
    1.
    发明申请
    Structure for Attaching RFID Tag and Method for Detecting RFID Tag 审中-公开
    RFID标签附件结构及RFID标签检测方法

    公开(公告)号:US20090231100A1

    公开(公告)日:2009-09-17

    申请号:US12226877

    申请日:2007-04-24

    IPC分类号: H04Q5/22

    摘要: The present invention provides a structure for attaching an RFID tag in a disposition allowing an easy detection by an external RFID reader, the structure preventing the RFID tag from being broken for a normal specification, and a method for detecting an RFID tag. The structure for attaching an RFID tag to a hollow cylindrical metal body is characterized in that the RFID tag is attached to an inner side of the hollow cylindrical metal body via a spacer between it and a metal surface such that a direction in which an electric field of the RFID tag is generated is in a direction along a circumference of the hollow cylindrical metal body.

    摘要翻译: 本发明提供一种用于将RFID标签附着在容易通过外部RFID读取器检测的配置中的结构,防止RFID标签因正常规格而被破坏的结构以及RFID标签的检测方法。 用于将RFID标签附接到中空圆柱形金属体的结构的特征在于,RFID标签通过其与金属表面之间的间隔件附接到中空圆柱形金属体的内侧,使得电场 产生RFID标签的方向是沿着中空圆柱形金属体的圆周方向。

    Wireless Communication Device
    2.
    发明申请
    Wireless Communication Device 审中-公开
    无线通信设备

    公开(公告)号:US20080037507A1

    公开(公告)日:2008-02-14

    申请号:US11791676

    申请日:2005-05-23

    IPC分类号: H04B7/212

    摘要: Existing modems of time division duplex (TDD) type can be utilized without modification to perform a high speed wireless communication with stable communication quality in other frequency bands such as quasi-millimeter to millimeter wave bands. There are included a circulator (11) connected to TDD modems (1, 2) and receives signals transmitted thereby to output those signals from a first connection terminal (p1) and outputs signals received at a second connection terminal (p2) to the TDD modems (1, 2), and a frequency converter (2a) that raise the frequency of the signals from the circulator (11) by a predetermined frequency width and lowers the frequency of signals from a receive antenna (32) by a predetermined frequency width. It may be arranged that the frequency conversion width be made different between the uplink and downlink and that a filter, which blocks the transmitting wireless frequency and passes the receiving wireless frequency, is provided between the receive antenna (32) and a frequency converter (22a).

    摘要翻译: 可以利用现有的时分双工(TDD)类型的调制解调器,而无需修改即可在诸如准毫米至毫米波段的其他频带中执行具有稳定通信质量的高速无线通信。 包括连接到TDD调制解调器(1,2)的循环器(11),并且接收从其发送的信号以从第一连接端子(p 1)输出这些信号,并将在第二连接端子(p 2)接收的信号输出到 TDD调制解调器(1,2)和频率转换器(2a),其将来自循环器(11)的信号的频率提高预定的频率宽度,并且将来自接收天线(32)的信号的频率降低预定的 频率宽度。 可以设置在上行链路和下行链路之间使频率转换宽度不同,并且在接收天线(32)和频率转换器(22)之间提供阻塞发送无线频率并通过接收无线频率的滤波器 一个)。

    Phase and frequency comparator circuit for phase locked loop
    3.
    发明授权
    Phase and frequency comparator circuit for phase locked loop 失效
    用于锁相环的相位和频率比较器电路

    公开(公告)号:US4940952A

    公开(公告)日:1990-07-10

    申请号:US267549

    申请日:1988-11-07

    申请人: Koyo Kegasa

    发明人: Koyo Kegasa

    CPC分类号: H03D13/00 H03L7/113

    摘要: A phase and frequency detector circuit includes both a phase comparator such as an exclusive-OR gate possessing high phase sensitivity, and a frequency-phase comparator that is sensitive to differences in frequency. The outputs of these circuits are combined to provide a single output signal offering both frequency discrimination and sharp phase discrimination.

    摘要翻译: 相位和频率检测器电路包括具有高相位灵敏度的异或门的相位比较器和对频率差异敏感的频率相位比较器。 这些电路的输出被组合以提供提供频率鉴别和尖锐相位辨别的单个输出信号。

    Oscillator Including Phase Frequency Detectors For Detecting a Phase Difference Between Two Input Signals and Outputting a Control Command Signal
    4.
    发明申请
    Oscillator Including Phase Frequency Detectors For Detecting a Phase Difference Between Two Input Signals and Outputting a Control Command Signal 失效
    包括用于检测两个输入信号之间的相位差并输出控制指令信号的相位检波器的振荡器

    公开(公告)号:US20060181354A1

    公开(公告)日:2006-08-17

    申请号:US11404762

    申请日:2006-04-17

    IPC分类号: H03L7/00

    摘要: An oscillator includes phase frequency detectors, each detecting the phase difference between two input signals (output signal and external reference signal) and outputting a control command signal for controlling the output signal to achieve a desired frequency on the basis of the phase difference. A plurality of ICs, each including a phase frequency detector, frequency dividers, a charge pump, and a lock detection circuit, is operated in parallel. A composite control command signal generated by combining outputs of the phase frequency detectors is output via a loop filter to a voltage-controlled oscillator. Whether phase noise is reduced sufficiently is determined on the basis of detection results by an amplitude detection circuit for detecting the amplitude of an AC component of the composite control command signal and the lock detection circuits. The phase frequency detectors are repeatedly reactivated until the phase noise is reduced sufficiently.

    摘要翻译: 振荡器包括相位频率检测器,每个相位检测器检测两个输入信号(输出信号和外部参考信号)之间的相位差,并且输出用于控制输出信号的控制命令信号,以基于相位差实现期望的频率。 并行地操作多个IC,每个IC包括相位频率检测器,分频器,电荷泵和锁定检测电路。 通过组合相位频率检测器的输出而产生的复合控制指令信号通过环路滤波器输出到压控振荡器。 基于用于检测复合控制指令信号的AC分量的振幅的振幅检测电路和锁定检测电路,确定相位噪声是否充分降低。 相位频率检测器被重新激活,直到相位噪声充分降低。

    Negative Resistance Input Amplifier Circuit and Oscillation Circuit
    5.
    发明申请
    Negative Resistance Input Amplifier Circuit and Oscillation Circuit 审中-公开
    负电阻输入放大器电路和振荡电路

    公开(公告)号:US20090134941A1

    公开(公告)日:2009-05-28

    申请号:US11883927

    申请日:2006-02-02

    IPC分类号: H03F3/191

    CPC分类号: H03B5/187

    摘要: The present invention provides a negative resistance input amplifier including: a microstrip line having one end connected to a collector of a transistor and the other end being open with a length of ¼ of a wavelength λ at a predetermined frequency f; and a microstrip line having one end connected to an emitter of the transistor and the other end grounded with a length of ¼ of the wavelength λ at the predetermined frequency f so that impedance viewed from a base of the transistor becomes negative only at around a target frequency, and an oscillator using the negative resistance input amplifier.

    摘要翻译: 本发明提供一种负电阻输入放大器,包括:微带线,其一端连接到晶体管的集电极,另一端以预定频率f的1/4波长的长度开放; 以及微带线,其一端连接到晶体管的发射极,另一端以预定频率f的波长λ的1/4的长度接地,使得从晶体管的基极观察到的阻抗仅在目标周围为负 频率和使用负电阻输入放大器的振荡器。

    Oscillator
    6.
    发明申请
    Oscillator 审中-公开
    振荡器

    公开(公告)号:US20080309422A1

    公开(公告)日:2008-12-18

    申请号:US11883318

    申请日:2006-05-22

    IPC分类号: H03B5/24

    摘要: An oscillator according to the present invention includes: an active element that oscillates at a predetermined frequency to output a signal of the predetermined frequency; and an impedance element having an impedance that is lower at a frequency lower than the predetermined frequency than at the predetermined frequency, the active element having signal terminals at least one of which is grounded through a series circuit composed of the impedance element and a capacitor.

    摘要翻译: 根据本发明的振荡器包括:以预定频率振荡以输出预定频率的信号的有源元件; 所述有源元件具有通过由所述阻抗元件和电容器构成的串联电路中的至少一个接地的信号端子,所述阻抗元件具有低于比所述预定频率低的预定频率的频率的阻抗。

    Oscillator including phase frequency detectors for detecting a phase difference between two input signals and outputting a control command signal
    7.
    发明授权
    Oscillator including phase frequency detectors for detecting a phase difference between two input signals and outputting a control command signal 失效
    振荡器包括用于检测两个输入信号之间的相位差并输出控制命令信号的相位频率检测器

    公开(公告)号:US07492194B2

    公开(公告)日:2009-02-17

    申请号:US11404762

    申请日:2006-04-17

    IPC分类号: H03L7/06

    摘要: An oscillator includes phase frequency detectors, each detecting the phase difference between two input signals (output signal and external reference signal) and outputting a control command signal for controlling the output signal to achieve a desired frequency on the basis of the phase difference. A plurality of ICs, each including a phase frequency detector, frequency dividers, a charge pump, and a lock detection circuit, is operated in parallel. A composite control command signal generated by combining outputs of the phase frequency detectors is output via a loop filter to a voltage-controlled oscillator. Whether phase noise is reduced sufficiently is determined on the basis of detection results by an amplitude detection circuit for detecting the amplitude of an AC component of the composite control command signal and the lock detection circuits. The phase frequency detectors are repeatedly reactivated until the phase noise is reduced sufficiently.

    摘要翻译: 振荡器包括相位频率检测器,每个相位检测器检测两个输入信号(输出信号和外部参考信号)之间的相位差,并且输出用于控制输出信号的控制命令信号,以基于相位差实现期望的频率。 并行地操作多个IC,每个IC包括相位频率检测器,分频器,电荷泵和锁定检测电路。 通过组合相位频率检测器的输出而产生的复合控制指令信号通过环路滤波器输出到压控振荡器。 基于用于检测复合控制指令信号的AC分量的振幅的振幅检测电路和锁定检测电路,确定相位噪声是否充分降低。 相位频率检测器被重新激活,直到相位噪声充分降低。

    Frequency converter and radio communications system employing the same
    8.
    发明授权
    Frequency converter and radio communications system employing the same 失效
    变频器和采用该无线电通信系统的通信系统

    公开(公告)号:US07177591B2

    公开(公告)日:2007-02-13

    申请号:US10741446

    申请日:2003-12-22

    IPC分类号: H04B7/14 H04B3/36 H04B1/40

    CPC分类号: H04B1/005 H04B1/406 H04B1/707

    摘要: In a frequency converter, a phase-locked loop generates a local-oscillation signal having a low frequency, of a plurality of local-oscillation signals having different frequencies, based on an intermediate frequency beacon signal that results from mixing a predetermined beacon signal with the local-oscillation frequency signal. Even if the phase-locked loop is used to generate the low frequency local-oscillation signal only, a frequency offset and a phase noise taking place in remaining high frequency local-oscillation signals are compensated for or canceled out. The frequency converter thus results in a high frequency accuracy. This arrangement reduces the number of bulky, costly and power-consuming phase-locked oscillators, typically used in the quasi millimeter band or the millimeter band. A simplified, compact frequency converter is thus provided, reducing both installation and operating costs.

    摘要翻译: 在频率转换器中,锁相环基于由预定信标信号与所述频率信号混合产生的中频信标信号,产生具有不同频率的多个本地振荡信号的低频本地振荡信号 本机振荡频率信号。 即使仅使用锁相环来产生低频本地振荡信号,在剩余的高频本地振荡信号中发生的频率偏移和相位噪声被补偿或抵消。 因此,变频器导致高频精度。 这种布置减少了典型地在准毫米波段或毫米波段中使用的体积庞大,昂贵和耗电的锁相振荡器的数量。 因此,提供了一种简化的紧凑型变频器,降低了安装和运行成本。

    Oscillator including phase frequency detectors for detecting a phase difference between two input signals and outputting a control command signal

    公开(公告)号:US07061330B2

    公开(公告)日:2006-06-13

    申请号:US10702635

    申请日:2003-11-07

    IPC分类号: H03L7/00

    摘要: An oscillator includes phase frequency detectors, each detecting the phase difference between two input signals (output signal and external reference signal) and outputting a control command signal for controlling the output signal to achieve a desired frequency on the basis of the phase difference. A plurality of ICs, each including a phase frequency detector, frequency dividers, a charge pump, and a lock detection circuit, is operated in parallel. A composite control command signal generated by combining outputs of the phase frequency detectors is output via a loop filter to a voltage-controlled oscillator. Whether phase noise is reduced sufficiently is determined on the basis of detection results by an amplitude detection circuit for detecting the amplitude of an AC component of the composite control command signal and the lock detection circuits. The phase frequency detectors are repeatedly reactivated until the phase noise is reduced sufficiently.

    Frequency converter and radio communications system employing the same
    10.
    发明授权
    Frequency converter and radio communications system employing the same 失效
    变频器和采用该无线电通信系统的通信系统

    公开(公告)号:US06724804B1

    公开(公告)日:2004-04-20

    申请号:US09350997

    申请日:1999-07-12

    IPC分类号: H04B169

    CPC分类号: H04B1/005 H04B1/406 H04B1/707

    摘要: In a frequency converter, a phase-locked loop generates a local-oscillation signal having a low frequency, of a plurality of local-oscillation signals having different frequencies, based on an intermediate frequency beacon signal that results from mixing a predetermined beacon signal with the local-oscillation frequency signal. Even if the phase-locked loop is used to generate the low frequency local-oscillation signal only, a frequency offset and a phase noise taking place in remaining high frequency local-oscillation signals are compensated for or canceled out. The frequency converter thus results in a high frequency accuracy. This arrangement reduces the number of bulky, costly and power-consuming phase-locked oscillators, typically used in the quasi millimeter band or the millimeter band. A simplified, compact frequency converter is thus provided, reducing both installation and operating costs.

    摘要翻译: 在频率转换器中,锁相环基于由预定信标信号与所述频率信号混合产生的中频信标信号,产生具有不同频率的多个本地振荡信号的低频本地振荡信号 本机振荡频率信号。 即使仅使用锁相环来产生低频本地振荡信号,在剩余的高频本地振荡信号中发生的频率偏移和相位噪声被补偿或抵消。 因此,变频器导致高频精度。 这种布置减少了典型地在准毫米波段或毫米波段中使用的体积庞大,昂贵和耗电的锁相振荡器的数量。 因此,提供了一种简化的紧凑型变频器,降低了安装和运行成本。