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    Methods and apparatus for sensing multiple wavelengths simultaneously in a single wavelength sensing device
    2.
    发明授权
    Methods and apparatus for sensing multiple wavelengths simultaneously in a single wavelength sensing device 失效
    用于在单个波长感测装置中同时感测多个波长的方法和装置

    公开(公告)号：US07302182B2

    公开(公告)日：2007-11-27

    申请号：US11472634

    申请日：2006-06-22

    申请人： John C. Carrick ,  Eric B. SaintGeorges ,  Chaoyu Yue

    发明人： John C. Carrick ,  Eric B. SaintGeorges ,  Chaoyu Yue

    IPC分类号： H04J14/02

    CPC分类号： H04J14/02 ,  H04B10/00 ,  H04B2210/075 ,  H04B2210/078

    摘要： A method and system provide for sensing multiple wavelengths simultaneously in a single wavelength sensing device. The system may have a plurality of laser signals and a plurality of identifiable modulation signals. A respective laser signal of the plurality of laser signals is combined with a respective identifiable modulation signal of the plurality of identifiable modulation signals so that each of the laser signals is identifiable. A combined optical signal is then formed from the modulated laser signals. A sensor has an input port that receives the combined optical signal. The sensor identifies, for each of the modulated laser signals, a respective laser signal via the identifiable modulation of the respective modulated laser signal.

    摘要翻译： 一种方法和系统提供在单个波长感测装置中同时感测多个波长。 该系统可以具有多个激光信号和多个可识别的调制信号。 将多个激光信号的相应激光信号与多个可识别调制信号的相应的可识别调制信号组合，使得每个激光信号都是可识别的。 然后从调制的激光信号形成组合光信号。 传感器具有接收组合光信号的输入端口。 传感器通过相应调制的激光信号的可识别的调制来识别针对每个调制的激光信号的相应的激光信号。

    SYSTEMS AND METHODS FOR POWER SUPPLY SYNCHRONIZATION IN RADIO FREQUENCY IDENTIFICATION (RFID) READERS
    3.
    发明申请
    SYSTEMS AND METHODS FOR POWER SUPPLY SYNCHRONIZATION IN RADIO FREQUENCY IDENTIFICATION (RFID) READERS 有权
    无线电频率识别（RFID）读取器中的电源同步的系统和方法

    公开(公告)号：US20090261659A1

    公开(公告)日：2009-10-22

    申请号：US12425932

    申请日：2009-04-17

    申请人： John C. Carrick ,  Robert R. Herold ,  Francis Honore

    发明人： John C. Carrick ,  Robert R. Herold ,  Francis Honore

    IPC分类号： H02J1/00

    CPC分类号： G06K7/0008 ,  G06K7/10207 ,  Y10T307/707

    摘要： A system for power supply synchronization in an Radio Frequency Identification (RFID) reader is shown and described. In one embodiment, the system includes one or more switched mode power supply devices and a signal generator. Each of the switched mode power supply devices provides power to at least one component of the RFID reader. The signal generator transmits a synchronization signal of a controlling frequency to each of the one or more power supply devices. In one embodiment, the system includes a signal processing unit that is configured to reject one or more spectral components from the output of the RFID reader.

    摘要翻译： 示出并描述了射频识别（RFID）读取器中的电源同步系统。 在一个实施例中，系统包括一个或多个开关模式电源装置和信号发生器。 每个开关模式电源装置向RFID读取器的至少一个部件提供电力。 信号发生器将控制频率的同步信号发送到一个或多个电源装置中的每一个。 在一个实施例中，系统包括被配置为从RFID读取器的输出中拒绝一个或多个频谱分量的信号处理单元。

    System and method for measuring power of optical signals carried over a fiber optic link
    4.
    发明授权
    System and method for measuring power of optical signals carried over a fiber optic link 失效
    用于测量通过光纤链路承载的光信号功率的系统和方法

    公开(公告)号：US07302178B2

    公开(公告)日：2007-11-27

    申请号：US11428987

    申请日：2006-07-06

    申请人： John C. Carrick ,  Paul C. Talmadge ,  Eric B. Saint Georges ,  Stuart D. Brorson

    发明人： John C. Carrick ,  Paul C. Talmadge ,  Eric B. Saint Georges ,  Stuart D. Brorson

    IPC分类号： H04B17/00

    CPC分类号： H04J14/0221 ,  H04B10/077 ,  H04B10/07955

    摘要： A pilot tone generator receives optical energy from an optical communication medium carrying a plurality of optical signals. Each optical signal carries data modulated at a unique wavelength and further modulated with a unique identification signal. The identification signal has an amplitude corresponding to an optical power of the associated optical signal. The pilot tone receiver detects each identification signal from the optical energy received and determines its corresponding amplitude. The pilot tone receiver calculates the optical power of each optical signal in the optical energy in response to the amplitude of the associated identification signal.

    摘要翻译： 导频音产生器从携带多个光信号的光通信介质接收光能。 每个光信号承载以独特波长进行调制的数据，并用唯一的识别信号进一步调制。 识别信号具有对应于相关联的光信号的光功率的幅度。 导频音接收器从接收的光能检测每个识别信号，并确定其对应的幅度。 导频音接收器响应于相关联的识别信号的幅度来计算光能中每个光信号的光功率。

    Extinction ratio calculation and control of a laser
    5.
    发明授权
    Extinction ratio calculation and control of a laser 有权
    激光的消光比计算和控制

    公开(公告)号：US06993459B2

    公开(公告)日：2006-01-31

    申请号：US09905948

    申请日：2001-07-17

    申请人： John C. Carrick

    发明人： John C. Carrick

    IPC分类号： G01S5/0683

    CPC分类号： H04B10/504 ,  H04B10/564

    摘要： A laser driver outputs a data protocol signal as controlled by an extinction control signal. The data protocol signal has a header including first and second bit patterns. A laser outputs an optical signal in response to being excited by the data protocol signal. The first and second bit patterns are measured and used to calculate an extinction ratio. The calculated extinction ratio is compared with a desired extinction ratio to generate the extinction control signal.

    摘要翻译： 激光驱动器输出由消光控制信号控制的数据协议信号。 数据协议信号具有包括第一和第二位模式的报头。 激光器响应于由数据协议信号激发而输出光信号。 测量第一和第二位图案并用于计算消光比。 将计算的消光比与期望的消光比进行比较以产生消光控制信号。

    Wideband bus for wireless base station
    9.
    发明授权
    Wideband bus for wireless base station 失效
    宽带总线用于无线基站

    公开(公告)号：US5894474A

    公开(公告)日：1999-04-13

    申请号：US982387

    申请日：1997-12-20

    申请人： Thierry Maison ,  Ronald A. Haberkorn ,  John C. Carrick ,  Robert E. Snyder ,  William T. Ralston ,  Michael A. Wolf

    发明人： Thierry Maison ,  Ronald A. Haberkorn ,  John C. Carrick ,  Robert E. Snyder ,  William T. Ralston ,  Michael A. Wolf

    IPC分类号： H04L12/40 ,  H04L12/407 ,  H04W88/08 ,  H04B7/26

    CPC分类号： H04L12/407 ,  H04W88/08

    摘要： A wideband band bus in a base station of a wireless communication system includes consecutively interconnected slots and may be automatically configured into one or more sections that perform application specific cell processing operations, without requiring hardware or software changes to the base station. A section of the wideband bus includes a group of the consecutively connected slots containing digital signal processing modules which implement a cell processing application. The modules included in the slots of a section and the interconnections among the slots provide for diversity reception, expandable cell capacity and cell operations in accordance with wireless communication protocol standards.

    摘要翻译： 无线通信系统的基站中的宽带频带总线包括连续互连的时隙，并且可以被自动配置成一个或多个部分，其执行应用特定的小区处理操作，而不需要对基站进行硬件或软件改变。 宽带总线的一部分包括一组连续连接的时隙，其中包含实现小区处理应用的数字信号处理模块。 包括在部分的时隙中的模块和时隙之间的互连提供了根据无线通信协议标准的分集接收，可扩展小区容量和小区操作。

    Methods and Apparatuses For RFID Tag Range Determination
    10.
    发明申请
    Methods and Apparatuses For RFID Tag Range Determination 有权
    用于RFID标签范围确定的方法和设备

    公开(公告)号：US20100109844A1

    公开(公告)日：2010-05-06

    申请号：US12611687

    申请日：2009-11-03

    申请人： John C. Carrick ,  Yael G. Maguire

    发明人： John C. Carrick ,  Yael G. Maguire

    IPC分类号： H04Q5/22

    CPC分类号： G06K7/0008 ,  G01S5/14 ,  G01S11/02 ,  G01S2013/466

    摘要： Apparatus and methods are described which are useful for determining a location characteristic between an RFID tag and an RFID tag reader or a second RFID tag. In various embodiments, signals backscattered from a singulated tag over a range of frequencies are evaluated for in-phase I and in-quadrature Q signal components. The I-Q data is processed to determine phase delay angles associated with each signal frequency. The phase delay data can be processed by a sum of squared errors method or Fourier transform method to determine a distance to the singulated tag. The methods can also be used to determine any of a location, a radial velocity, a directional velocity of the singulated tag, and proximity of the singulated tag to a second tag.

    摘要翻译： 描述了对于确定RFID标签与RFID标签读取器或第二RFID标签之间的位置特性有用的装置和方法。 在各种实施例中，针对同相I和正交Q信号分量评估在频率范围上从单个标签反向散射的信号。 处理I-Q数据以确定与每个信号频率相关联的相位延迟角度。 相位延迟数据可以通过平方误差法或傅里叶变换方法求和来确定到单数标签的距离。 该方法还可以用于确定单个标签的位置，径向速度，方向速度以及单个标签与第二标签的接近中的任何一个。