公开(公告)号：US07016607B1

公开(公告)日：2006-03-21

申请号：US09460214

申请日：1999-12-13

申请人： John C. Carrick ,  Mark I. Oppenheimer ,  Rajiv R. Ramaswami ,  Ornan A. Gerstel

发明人： John C. Carrick ,  Mark I. Oppenheimer ,  Rajiv R. 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 static and dynamic optical network configurations to enable mapping an actual optical network or validating an expected optical network are provided. In one embodiment a validation method includes the step of selecting an optical path having a plurality of nodes from a database defining an expected optical network. A list of detected pilot tones from each node associated with the selected optical path is generated. An expected list of pilot tones associated with each node of the selected optical path is generated. Comparison of the expected and detected lists identifies any mismatched nodes. Another method includes the step of setting a first pilot tone source to have a first pilot tone value. All other network pilot tone sources are set to have another pilot tone value. An optical path associated with the first pilot tone source is then mapped by identifying each node of the network having the first pilot tone value. Extraneous information can be applied to provide greater assurances as to likelihood of possible actual optical paths during the mapping process. Methods of re-configuring network pilot tone sources to preserve mapping and validation abilities when adding nodes, adding optical paths, or even adding another network to a pre-existing network are also provided.

摘要翻译： 提供了用于管理静态和动态光网络配置以实现映射实际光网络或验证预期光网络的方法和装置。 在一个实施例中，验证方法包括从定义预期光网络的数据库中选择具有多个节点的光路的步骤。 产生与所选光路相关联的每个节点的检测到的导频音调的列表。 生成与所选光路的每个节点相关联的导频音调的预期列表。 预期和检测到的列表的比较识别任何不匹配的节点。 另一种方法包括将第一导频音源设置为具有第一导频音值的步骤。 所有其他网络导频音源设置为具有另一个导频音调值。 然后通过识别具有第一导频音调值的网络的每个节点来映射与第一导频音源相关联的光路。 可以应用外部信息，以便在映射过程中对可能的实际光路的可能性提供更大的保证。 还提供了重新配置网络导频音源以在添加节点，添加光路或甚至向现有网络添加另一网络时的映射和验证能力的方法。

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。

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。

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。

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。

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。

公开(公告)号：US08279112B2

公开(公告)日：2012-10-02

申请号：US12611724

申请日：2009-11-03

申请人： John C. Carrick

发明人： John C. Carrick

IPC分类号： G01S13/08

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 distance between an RFID tag and an RFID tag reader. 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： 描述了可用于确定RFID标签和RFID标签读取器之间的距离的装置和方法。 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。

公开(公告)号：US20100109903A1

公开(公告)日：2010-05-06

申请号：US12611724

申请日：2009-11-03

申请人： John C. Carrick

发明人： John C. Carrick

IPC分类号： G08B5/22 ,  G06K7/01

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 distance between an RFID tag and an RFID tag reader. 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： 描述了可用于确定RFID标签和RFID标签读取器之间的距离的装置和方法。 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。

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。

公开(公告)号：US07113705B2

公开(公告)日：2006-09-26

申请号：US10185429

申请日：2002-06-28

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： H04B14/02

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.