RFID interrogator having customized radio parameters with local memory storage

    公开(公告)号:US07039359B2

    公开(公告)日:2006-05-02

    申请号:US10013109

    申请日:2001-12-07

    申请人: Rene D. Martinez

    发明人: Rene D. Martinez

    IPC分类号: H04B7/00

    CPC分类号: G01S13/825 G06K7/0008

    摘要: An RFID interrogator has a receiver/transmitter architecture that accounts for the variation in tolerances of radio system electrical components. The RFID interrogator includes a memory in which is stored desired initial condition data of the receiver/transmitter architecture, and this initial condition data is used upon initialization of the RFID interrogator to define the operational condition of the RFID interrogator. Each individual RFID interrogator may contain unique initial condition data corresponding to the particular component tolerances of that radio system.

    RFID tag and method of manufacture
    5.
    发明授权
    RFID tag and method of manufacture 有权
    RFID标签和制造方法

    公开(公告)号:US07274297B2

    公开(公告)日:2007-09-25

    申请号:US10882660

    申请日:2004-07-01

    IPC分类号: G08B13/14

    摘要: An RFID tag may include an antenna substrate comprising a conductive layer etched or deposited to form an antenna, and a circuit substrate comprising a conductive layer etched or deposited to form a circuit, the antenna electro-magnetically coupled to the circuit. An RFID tag may be formed from an insert substrate comprising an insulative layer between two conductive layers, one of the conductive layers etched to form an antenna and the other conductive layer etched to form a circuit. The insert substrate may be received in an envelope formed by a label substrate, which may carry a pressure sensitive adhesive.

    摘要翻译: RFID标签可以包括天线衬底,其包括蚀刻或沉积以形成天线的导电层,以及包括蚀刻或沉积以形成电路的导电层的电路衬底,所述天线与所述电路电磁耦合。 可以从包括两个导电层之间的绝缘层的插入衬底形成RFID标签,蚀刻形成天线中的一个导电层和蚀刻形成电路的另一导电层。 插入基板可以容纳在由携带压敏粘合剂的标签基底形成的封套中。

    Networking applications for automated data collection
    6.
    发明授权
    Networking applications for automated data collection 有权
    用于自动数据收集的网络应用程序

    公开(公告)号:US07142092B2

    公开(公告)日:2006-11-28

    申请号:US11021871

    申请日:2004-12-23

    IPC分类号: H04Q5/22 G08B13/14 G06F15/16

    CPC分类号: G07C9/00111

    摘要: An RFID reader directly controls computer network applications on the basis of information collected from an RFID tag. The RFID tag includes certain designated fields that identify a destination computer system and/or application program for data recovered from the RFID tag. The RFID reader can then distribute the collected information in a format and to a destination that is determined by the RFID tag, thereby eliminating the need for intermediary software programs or human operators to make such decisions about the distribution of information. This capability permits RFID tag information to be automatically collected and distributed to network applications for ultimate data processing and collection.

    摘要翻译: RFID读取器基于从RFID标签收集的信息直接控制计算机网络应用。 RFID标签包括识别用于从RFID标签恢复的数据的目的地计算机系统和/或应用程序的某些指定字段。 然后,RFID读取器可以以由RFID标签确定的格式和目的地分发所收集的信息,从而消除对中间软件程序或人类操作者做出关于信息分发的决定的需要。 该功能允许RFID标签信息自动收集并分发到网络应用程序以进行最终的数据处理和收集。

    System and method for communicating with an RFID transponder with reduced noise and interference

    公开(公告)号:US06639509B1

    公开(公告)日:2003-10-28

    申请号:US09390461

    申请日:1999-09-07

    申请人: Rene D. Martinez

    发明人: Rene D. Martinez

    IPC分类号: G01V300

    CPC分类号: G06K7/0008

    摘要: The RFID interrogator further comprises a microcontroller module adapted to provide high level commands to the interrogator, a DSP module for processing received/transmitted data and controlling radio operations, and a radio module for transmitting and receiving RF signals to/from an RFID transponder. A first embodiment of the RFID interrogator comprises an RF carrier source providing a carrier signal, a processor providing an information signal, and plural modulation stages coupled to the RF carrier source for modulating the information signal onto the carrier signal using on/off keying modulation. The plural modulation stages are controlled in unison by control signals the said processor. The plural modulation stages provide dynamic range of greater than 25 dB between respective on and off states of the modulated signal. A second embodiment of the RFID interrogator comprises an RF carrier source providing a carrier signal, a modulator receiving the carrier source and modulating an information signal thereon to provide a modulated RF signal, and an amplification stage coupled to the modulator. The amplification stage splits the modulated RF signal into first and second components, and amplifies the first and second components separately. The first and second components are thereafter recombined. The split operation of the amplification stage provides a better match with the downstream transmission path than an individual amplifier. A third embodiment of the RFID interrogator comprises an RF carrier source providing a carrier signal, a demodulator combining a received signal with the RF carrier to provide a baseband signal, and an attenuator coupled to the demodulator for absorbing high frequency components of the baseband signal. The baseband signal further comprises in phase (I) and quadrature phase (Q) components. The high frequency components of the baseband signal pass through the high-pass filter to the resistor termination, where they are absorbed.

    Electronic beam steering of active arrays with phase-locked loops
    9.
    发明授权
    Electronic beam steering of active arrays with phase-locked loops 失效
    具有锁相环的有源阵列的电子束导向

    公开(公告)号:US5523764A

    公开(公告)日:1996-06-04

    申请号:US294006

    申请日:1994-08-23

    IPC分类号: H01Q3/22 H01Q3/26

    CPC分类号: H01Q3/2605 H01Q3/22

    摘要: An electronic beam steering technique for active arrays uses a single balanced diode mixer phase-locked loop connected between adjacent oscillators. Each oscillator has its own antenna that radiates energy into free space so the phase difference between oscillators determines the direction of the main radiating beam. An offset voltage added to the phase-locked loop controls the phase difference and thus the beam direction, providing over 100.degree. of adjustable phase difference between adjacent oscillators.

    摘要翻译: 用于有源阵列的电子束控制技术使用连接在相邻振荡器之间的单个平衡二极管混频器锁相环。 每个振荡器都有自己的天线,将能量辐射到自由空间,因此振荡器之间的相位差决定了主辐射束的方向。 添加到锁相环的偏移电压控制相位差,从而控制光束方向,提供相邻振荡器之间超过100°的可调相位差。

    Indicators of optimum positioning of a data collection device for reading data carriers, such as RFID tags and machine-readable symbols
    10.
    发明授权
    Indicators of optimum positioning of a data collection device for reading data carriers, such as RFID tags and machine-readable symbols 有权
    用于读取数据载体(例如RFID标签和机器可读符号)的数据收集装置的最佳定位指示符

    公开(公告)号:US07121467B2

    公开(公告)日:2006-10-17

    申请号:US10850966

    申请日:2004-05-21

    IPC分类号: G06K7/10

    摘要: A data collection device for reading barcodes, matrix codes, acoustical tags, radio frequency identifier (RFID) tags, and other data carriers. The data collection device includes components to determine an actual position of the data collection device with respect to a target data carrier. The data collection device further includes visual indicators to indicate the determined actual position relative to an optimal position of the data collection device relative to the target data carrier. The determined actual position can be at least one of an actual distance or an actual orientation of the data collection device relative to the target data carrier.

    摘要翻译: 用于读取条形码,矩阵码,声标签,射频标识符(RFID)标签和其他数据载体的数据收集装置。 数据收集装置包括用于确定数据收集装置相对于目标数据载体的实际位置的组件。 数据收集装置还包括可视指示符,用于指示相对于数据收集装置相对于目标数据载体的最佳位置的确定的实际位置。 确定的实际位置可以是数据收集装置相对于目标数据载体的实际距离或实际取向中的至少一个。