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1. 发明申请

US20100069011A1 Methods and Apparatus For Self-Jamming Suppression In A Radio Frequency Identification (RFID) Reader 审中-公开
标题翻译：射频识别（RFID）阅读器中自干扰抑制的方法和装置
公开(公告)号：US20100069011A1
公开(公告)日：2010-03-18
申请号：US12595109
申请日：2008-04-21
申请人： John C. Carrick , Robert R. Herold , Sri Krishna , Matthew Reynolds , Yael G. Maguire , Ravikanth Pappu
发明人： John C. Carrick , Robert R. Herold , Sri Krishna , Matthew Reynolds , Yael G. Maguire , Ravikanth Pappu
IPC分类号： H04B15/00 , H04Q5/22
CPC分类号： G06K7/0008 , H04B15/04 , H04B2215/064 , H04K3/28 , H04K2203/20
摘要： A circuit for transmitter-receiver isolation that is useful in a monostatic (combined transmitting and receiving) antenna configuration is shown and described. In addition, methods and systems are shown for automatically adjusting the circuit in response to changes in antenna configuration, external signal reflectors, and jamming energy (e.g., self jammer energy) by adjusting the circuit to tune out these sources of jammer energy to yield an increase in RFID reader receiver sensitivity when compared to measurements of the receiver sensitivity when the jammer energy is not present.
摘要翻译：示出并描述了在单一（组合发射和接收）天线配置中有用的用于发射机 - 接收机隔离的电路。另外，示出了通过调节电路以调出这些干扰源能量来响应于天线配置，外部信号反射器和干扰能量（例如自干扰能量）的变化来自动调整电路的方法和系统，以产生当不存在干扰能量时，与读取器灵敏度的测量值相比，RFID读取器接收器灵敏度增加。

2. 发明申请

US20100109844A1 Methods and Apparatuses For RFID Tag Range Determination 有权
标题翻译：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。

3. 发明授权

US08446254B2 Methods and apparatuses for RFID tag range determination 有权
标题翻译：用于RFID标签范围确定的方法和装置
公开(公告)号：US08446254B2
公开(公告)日：2013-05-21
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 , G08B13/14 , G08B1/08 , G08C19/12 , G01S13/08 , G01S13/00 , G01S5/02
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。

4. 发明申请

US20090261659A1 SYSTEMS AND METHODS FOR POWER SUPPLY SYNCHRONIZATION IN RADIO FREQUENCY IDENTIFICATION (RFID) READERS 有权
标题翻译：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。

5. 发明授权

US07302178B2 System and method for measuring power of optical signals carried over a fiber optic link 失效
标题翻译：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。

6. 发明授权

US06993459B2 Extinction ratio calculation and control of a laser 有权
标题翻译：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。

7. 发明授权

US07715715B2 Shared optical ring protection in a multi-fiber ring 有权
标题翻译：多光纤环共享光环保护
公开(公告)号：US07715715B2
公开(公告)日：2010-05-11
申请号：US09886153
申请日：2001-06-22
申请人： Ornan A. Gerstel , John C. Carrick
发明人： Ornan A. Gerstel , John C. Carrick
IPC分类号： H04B10/00
CPC分类号： H04Q11/0062 , H04J14/0206 , H04J14/0212 , H04J14/0221 , H04J14/0227 , H04J14/0241 , H04J14/0283 , H04J14/0291 , H04J14/0295 , H04Q11/0005 , H04Q2011/0039 , H04Q2011/0081 , H04Q2011/0092
摘要： A communication network comprising first and second communication paths, and nodes coupled therethrough. Each node comprises first and second switches, each having a first terminal coupled to an end of a first communication path, and a second terminal coupled to an end of a second communication path. Third terminals of the first and second switches are coupled together through at least one third communication path. A Wavelength-Division-Multiplexed device of the node is coupled to an external communication node and a fourth terminal of each switch. A node controller responds to an applied input by controlling at least one switch to cause selective coupling of at least one of (a) first and second nodes together via at least one of the paths, and (b) the external communication node and at least one of the first and second nodes via at least one of the paths.
摘要翻译：一种包括第一和第二通信路径以及耦合在其中的节点的通信网络。每个节点包括第一和第二交换机，每个交换机具有耦合到第一通信路径的一端的第一终端，以及耦合到第二通信路径的一端的第二终端。第一和第二开关的第三端子通过至少一个第三通信路径耦合在一起。节点的波分复用设备耦合到每个交换机的外部通信节点和第四终端。节点控制器通过控制至少一个交换机来响应所施加的输入，以通过至少一个路径使（a）第一和第二节点中的至少一个选择性耦合在一起，并且（b）外部通信节点并且至少经由至少一个路径的第一和第二节点中的一个。

8. 发明授权

US07302182B2 Methods and apparatus for sensing multiple wavelengths simultaneously in a single wavelength sensing device 失效
标题翻译：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。

9. 发明授权

US07123832B2 Methods and apparatus for optical network management using pilot tones 失效
标题翻译：使用导频音进行光网络管理的方法和装置
公开(公告)号：US07123832B2
公开(公告)日：2006-10-17
申请号：US11328769
申请日：2006-01-10
申请人： John C. Carrick , Mark I. Oppenheimer , Rajiv Ramaswami , Ornan A. Gerstel
发明人： John C. Carrick , Mark I. Oppenheimer , Rajiv Ramaswami , Ornan A. Gerstel
IPC分类号： H04B10/00
CPC分类号： H04Q11/0062 , H04B10/0773 , H04B10/0793 , H04B2210/075 , H04Q2011/0083 , H04Q2011/0088
摘要： Methods and apparatus for managing an optical network using pilot tones are provided. One method includes generating a list of pilot tones contributed by a selected node to each of its target nodes. Network pilot tone sources are re-configured so that a pilot tone source of any optical path incorporating one of the target nodes has a value distinct from the listed pilot tones. The selected node can then be added to the network. Another method includes generating a list including all selected network nodes to be incorporated into a new optical path and nodes adjacent to the selected network nodes. Network pilot tone sources are re-configured until a pilot tone source associated with the new optical path has a pilot tone distinct from that of any listed node. The new optical path can then be added to the network.
摘要翻译：提供了使用导频音来管理光网络的方法和装置。一种方法包括生成由选定节点贡献到其每个目标节点的导频音调的列表。重新配置网络导频音源，使得包含目标节点之一的任何光路的导频音源具有与列出的导频音不同的值。然后可以将选定的节点添加到网络。另一种方法包括生成包括要并入到新光路中的所有选定网络节点和与选定网络节点相邻的节点的列表。重新配置网络导频音源，直到与新光路相关联的导频音源具有与任何列出的节点不同的导频音。然后可以将新的光学路径添加到网络。

10. 发明授权

US06931214B1 Method and apparatus for maintaining a pre-determined ratio of a pilot tone power and a mean optical output power of an optical signal 失效
标题翻译：用于维持导频音功率的预定比率和光信号的平均光输出功率的方法和装置
公开(公告)号：US06931214B1
公开(公告)日：2005-08-16
申请号：US09567576
申请日：2000-05-10
申请人： John C. Carrick , Stuart D. Brorson , Eric J. Frankfort , Paul C. Talmadge , Roger P. Holmstrom
发明人： John C. Carrick , Stuart D. Brorson , Eric J. Frankfort , Paul C. Talmadge , Roger P. Holmstrom
IPC分类号： H04B10/02 , H04B10/08 , H04B10/04
CPC分类号： H04B10/0775 , H04B2210/075
摘要： Methods and apparatus related to maintaining a pre-determined ratio of a pilot tone power and a total mean optical power of an optical signal are provided. One method includes the steps of detecting the AC and DC components of an optical signal having a pilot tone signal. An amplitude of the pilot tone signal is varied in accordance with a difference between a pre-determined value and a ratio of the AC and DC components. Another method includes the step of generating an optical signal in accordance with a DC bias and an AC bias corresponding to a pilot tone signal. The AC and DC components of the optical signal are detected. At least one of the DC bias and the AC bias is varied in accordance with a difference between a pre-determined value and a ratio of the AC and DC components. An apparatus includes an optical source providing an optical signal in response to a DC bias and an AC bias corresponding to a pilot tone signal. The apparatus includes detectors coupled to measure the AC and DC components of the optical signal. A feedback control varies at least one of the DC bias and the AC bias in accordance with a difference between a pre-determined value and a ratio of the AC and DC components. In various embodiments, the DC bias only, the AC bias only, or both the AC bias and the DC bias are varied.
摘要翻译：提供了与维持光信号的导频音功率和总平均光功率的预定比例有关的方法和装置。一种方法包括检测具有导频音信号的光信号的AC分量和DC分量的步骤。导频音信号的幅度根据预定值与AC和DC分量的比率之间的差异而变化。另一种方法包括根据直流偏压和对应于导频音信号的AC偏压产生光信号的步骤。检测光信号的AC和DC分量。 DC偏置和AC偏压中的至少一个根据预定值和AC和DC分量的比率之间的差异而变化。一种装置包括光源，响应于DC偏压和对应于导频音信号的AC偏压而提供光信号。该装置包括耦合以测量光信号的AC和DC分量的检测器。反馈控制根据预定值和AC和DC分量的比率之间的差异来改变DC偏压和AC偏压中的至少一个。在各种实施例中，只有DC偏置，仅AC偏压，或AC偏压和DC偏置两者都是变化的。

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