公开(公告)号：US20090256683A1

公开(公告)日：2009-10-15

申请号：US12488863

申请日：2009-06-22

申请人： Robert A. Stephenson ,  Michael Grady ,  Scott Barvick ,  David J. Husak ,  Lin Zhou ,  Nirav R. Shah ,  Pattabhiraman Krishna ,  Jeffrey H. Fischer ,  Chilton L. Cabot

发明人： Robert A. Stephenson ,  Michael Grady ,  Scott Barvick ,  David J. Husak ,  Lin Zhou ,  Nirav R. Shah ,  Pattabhiraman Krishna ,  Jeffrey H. Fischer ,  Chilton L. Cabot

IPC分类号： H04Q5/22

CPC分类号： H04W16/18 ,  H04L67/18 ,  H04W84/18

摘要： A system and method that facilitates the configuration and control of components of a radio frequency identification (RFID) system, taking into account how the RFID system components are associated with one or more physical locations within an environment in which the RFID system is deployed. The RFID system can be controlled by obtaining a representation of the physical space. Next, at least one region of interest is specified in the representation of the physical space. An interrogation zone is then specified in the representation of the physical space, in which the interrogation zone corresponds to the data reader. Next, at least one overlap region of the interrogation zone and the region of interest is specified. Information is then stored, including the representation, and the interest region, the interrogation zone, and/or the overlap region. Operation of the data reader is controlled as a function of the stored information.

摘要翻译： 考虑到RFID系统组件如何与RFID系统部署的环境中的一个或多个物理位置相关联，便于对射频识别（RFID）系统的组件进行配置和控制的系统和方法。 可以通过获得物理空间的表示来控制RFID系统。 接下来，在物理空间的表示中指定至少一个感兴趣区域。 然后在物理空间的表示中指定询问区，其中询问区对应于数据读取器。 接下来，指定询问区域和感兴趣区域的至少一个重叠区域。 然后存储信息，包括表示，兴趣区域，询问区域和/或重叠区域。 作为存储信息的函数控制数据读取器的操作。

公开(公告)号：US07667572B2

公开(公告)日：2010-02-23

申请号：US11194128

申请日：2005-07-29

申请人： David J. Husak ,  Robert A. Stephenson ,  Michael Grady ,  Scott Barvick ,  Pattabhiraman Krishna ,  Chilton L. Cabot ,  Jeffrey H. Fischer

发明人： David J. Husak ,  Robert A. Stephenson ,  Michael Grady ,  Scott Barvick ,  Pattabhiraman Krishna ,  Chilton L. Cabot ,  Jeffrey H. Fischer

IPC分类号： H04Q5/22 ,  G08B13/14

CPC分类号： G06K17/0029 ,  G01S5/0252 ,  G01S5/06 ,  G06K7/0008 ,  G06K7/10356 ,  G06K2017/0045 ,  G06K2017/0048 ,  G06K2017/0051

摘要： An architecture of an RFID system that facilitates the accessing of RFID tag data within an RFID environment. The architecture includes a plurality of RFID readers, each reader being operative to transmit a first RF signal for scanning at least one RFID tag disposed within an RF coverage region associated with the reader, and to receive at least one second RF signal including tag data in response to the scanning of the tag. The architecture further includes at least one host computer operative to execute at least one client application, and at least one controller/processor communicably coupled to the plurality of readers and the at least one host computer. The controller/processor is operative to control operation of the plurality of readers, to process the tag data received by the plurality of readers, and to provide the processed tag data to the at least one host computer for use by the at least one client application executing thereon.

公开(公告)号：US07567179B2

公开(公告)日：2009-07-28

申请号：US11581788

申请日：2006-10-16

申请人： Robert A. Stephensen ,  Michael Grady ,  Scott Barvick ,  David J. Husak ,  Lin Zhou ,  Nirav R. Shah ,  Pattabhiraman Krishna ,  Jeffrey H. Fischer ,  Chilton L. Cabot

发明人： Robert A. Stephensen ,  Michael Grady ,  Scott Barvick ,  David J. Husak ,  Lin Zhou ,  Nirav R. Shah ,  Pattabhiraman Krishna ,  Jeffrey H. Fischer ,  Chilton L. Cabot

IPC分类号： G08B13/141

CPC分类号： H04W16/18 ,  H04L67/18 ,  H04W4/02 ,  H04W84/18

摘要： A system and method that facilitates the configuration and control of components of an RFID system, taking into account how the RFID system components are associated with one or more physical locations within an environment in which the RFID system is deployed. A user provides information specifying associations between the system components and the physical locations within the environment to obtain visual representations of configuration data generated therefrom with reference to a facility view, an RF coverage view, and a location view of the data. The facility view serves as a reference plane for placement and orientation of antennas associated with RFID readers, location benchmark tags, and the physical locations of interest. After each antenna is placed and oriented on the facility view, an estimate of the size and shape of the RF interrogation zone of each antenna is computed, and representations of the RF interrogation zones are provided on the facility view to obtain the RF coverage view of the data. Next, the user provides information specifying the physical locations of interest to obtain the location view of the data. A composite of the facility view, the coverage view, and the location view is then generated to obtain an enhanced visual understanding of how the system components and the physical locations exist within the system environment, and how the components and locations are associated with one another.

摘要翻译： 考虑到RFID系统组件如何与在其中部署RFID系统的环境中的一个或多个物理位置相关联，便于对RFID系统的组件进行配置和控制的系统和方法。 用户提供指定系统组件与环境内的物理位置之间的关联的信息，以参考参考设施视图，RF覆盖视图和数据的位置视图从其生成的配置数据的视觉表示。 设备视图用作与RFID读取器，位置基准标签和感兴趣的物理位置相关联的天线的放置和定向的参考平面。 在每个天线在设施视图上放置和定向之后，计算每个天线的RF询问区的大小和形状的估计，并且在设施视图上提供RF询问区的表示以获得RF覆盖视图 数据。 接下来，用户提供指定感兴趣的物理位置以获得数据的位置视图的信息。 然后生成设施视图，覆盖视图和位置视图的组合，以获得对系统组件和物理位置如何存在于系统环境中以及组件和位置如何彼此关联的增强的视觉理解 。

公开(公告)号：US07817014B2

公开(公告)日：2010-10-19

申请号：US11194127

申请日：2005-07-29

申请人： Pattabhiraman Krishna ,  Jeffrey H. Fischer ,  David J. Husak ,  Robert A. Stephenson

发明人： Pattabhiraman Krishna ,  Jeffrey H. Fischer ,  David J. Husak ,  Robert A. Stephenson

IPC分类号： H04Q5/22

CPC分类号： G06K17/0029 ,  G01S5/0252 ,  G01S5/06 ,  G06K7/0008 ,  G06K7/10356 ,  G06K2017/0045 ,  G06K2017/0048 ,  G06K2017/0051

摘要： A system and method of scheduling RFID tag interrogations by a plurality of RFID readers so as to mitigate the effects of interference within an RFID environment in which the readers are deployed, and to enhance the efficiency and reliability of the overall RFID system. The system includes a plurality of RFID receivers for receiving RFID tag data, a plurality of RFID tag interrogators for transmitting RF interrogation signals for interrogating RFID tags, and a controller for providing to at least one interrogator, at least one receiver, and at least one tag, a parameter associated with operational characteristics of the interrogator, the receiver, and the tag, respectively. The interrogator, the receiver, and the tag are operative, in response to receipt of the respective parameter, to modify its operational characteristics in accordance with the respective parameter, thereby avoiding interference at the receivers and the tags.

摘要翻译： 一种通过多个RFID读取器调度RFID标签询问的系统和方法，以便减轻在其中部署读取器的RFID环境中的干扰的影响，并且提高整个RFID系统的效率和可靠性。 该系统包括用于接收RFID标签数据的多个RFID接收器，用于发送用于询问RFID标签的RF询问信号的多个RFID标签询问器，以及用于向至少一个询问器提供至少一个接收器的控制器，以及至少一个接收器 标签，分别与询问器，接收器和标签的操作特性相关联的参数。 响应于相应参数的接收，询问器，接收器和标签可操作，以根据相应的参数修改其操作特性，从而避免对接收器和标签的干扰。

公开(公告)号：US07692532B2

公开(公告)日：2010-04-06

申请号：US11194145

申请日：2005-07-29

申请人： Jeffrey H. Fischer ,  David J. Husak ,  Pattabhiraman Krishna

发明人： Jeffrey H. Fischer ,  David J. Husak ,  Pattabhiraman Krishna

IPC分类号： H04Q5/22 ,  G08B13/14 ,  G08C19/00

CPC分类号： G06K17/0029 ,  G01S5/0252 ,  G01S5/06 ,  G06K7/0008 ,  G06K7/10356 ,  G06K2017/0045 ,  G06K2017/0048 ,  G06K2017/0051

摘要： A system and method for monitoring and characterizing various sources of RF interference within an RFID environment, and for adjusting the operational characteristics of an array of RFID readers within the system based on these interference characterizations. The system examines the received transmissions from readers in the network by controlling a calibration cycle or while they are operating as interrogators to determine interference parameters, and to verify the operation of the readers in the array. The system also examines outside sources of interference, and signal dependent interference. The interference characterization can also be estimated from a combination of calculations and co-monitoring.

摘要翻译： 一种用于监视和表征RFID环境内的各种RF干扰源的系统和方法，并且用于基于这些干扰特征来调整系统内的RFID读取器阵列的操作特性。 该系统通过控制校准周期或当它们作为询问器操作以确定干扰参数并且验证阵列中的读取器的操作来检查来自网络中的读取器的接收的传输。 该系统还检查外部干扰源和信号相关干扰。 干涉特征也可以通过计算和共同监测的组合来估计。

公开(公告)号：US07667575B2

公开(公告)日：2010-02-23

申请号：US11194144

申请日：2005-07-29

申请人： David J. Husak ,  Pattabhiraman Krishna ,  Peter Spreadborough ,  Jeffrey H. Fischer

发明人： David J. Husak ,  Pattabhiraman Krishna ,  Peter Spreadborough ,  Jeffrey H. Fischer

IPC分类号： H04Q5/22 ,  G08B13/14 ,  G08C19/00

CPC分类号： G06K17/0029 ,  G01S5/0252 ,  G01S5/06 ,  G06K7/0008 ,  G06K7/10356 ,  G06K2017/0045 ,  G06K2017/0048 ,  G06K2017/0051

摘要： A system and method of determining locations of one or more RFID tags within an RFID environment. The system includes a plurality of RFID readers, each operative to transmit and receive RF signals for scanning a tag disposed within an RF coverage region associated with the reader, and for receiving tag data in response to the scanning of the tag. A plurality of sub-locations is determined within the environment, each corresponding to at least a portion of at least one of a plurality of RF coverage regions associated with the readers. The sub-locations are mapped to a plurality of predefined locations within the environment. A reader scans a tag, and receives tag scan data from the tag in response to the scanning of the tag. The tag scan data includes a tag identifier associated with the scanned tag. The tag scan data is mapped to the sub-locations based on the RF coverage region associated with the reader. The location of the scanned tag is then determined with reference to the predefined locations within the environment, based on the tag identifier included in the tag scan data, the mapping of the tag scan data to the sub-locations, and the mapping of the sub-locations to the predefined locations.

摘要翻译： 一种确定RFID环境中的一个或多个RFID标签的位置的系统和方法。 该系统包括多个RFID读取器，每个RFID读取器用于发送和接收RF信号，用于扫描布置在与读取器相关联的RF覆盖区域内的标签，以及响应于标签的扫描而接收标签数据。 在环境中确定多个子位置，每个子位置对应于与读取器相关联的多个RF覆盖区域中的至少一个的至少一部分。 子位置被映射到环境中的多个预定位置。 读取器扫描标签，并且响应于标签的扫描从标签接收标签扫描数据。 标签扫描数据包括与扫描的标签相关联的标签标识符。 基于与读取器相关联的RF覆盖区域，标签扫描数据被映射到子位置。 然后，基于包括在标签扫描数据中的标签标识符，标签扫描数据到子位置的映射以及子区域的映射，参考环境中的预定义位置来确定扫描标签的位置 - 定位到预定义的位置。

公开(公告)号：US5828665A

公开(公告)日：1998-10-27

申请号：US807552

申请日：1997-02-28

申请人： David J. Husak

发明人： David J. Husak

IPC分类号： H04L12/56 ,  H04Q11/04 ,  H04L12/50

CPC分类号： H04L45/02 ,  H04L45/04 ,  H04Q11/0478 ,  H04L2012/5615 ,  H04L2012/5619

摘要： An apparatus and method for selecting improved routing paths in an emulated LAN over an ATM network is disclosed. Such an apparatus and method are realized by having an editor associated with a distributed LAN emulation server selectively modify Routing Information Protocol (RIP) update messages according to information retrieved from an associated routing table. More particularly, the editor modifies RIP update messages so that they will more accurately reflect the position of the network router that broadcast the RIP update message, relative to the position of a network router associated with the distributed LAN emulation server, with respect to any given destination network.

摘要翻译： 公开了一种用于在ATM网络上选择仿真LAN中的改进的路由路径的装置和方法。 这样的装置和方法通过使与分布式LAN仿真服务器相关联的编辑器根据从相关联的路由表中检索到的信息选择性地修改路由信息协议（RIP）更新消息来实现。 更具体地，编辑器修改RIP更新消息，使得它们相对于与分布式LAN仿真服务器相关联的网络路由器的位置相对于任何给定的更准确地反映广播RIP更新消息的网络路由器的位置 目的地网络。

公开(公告)号：US07647472B2

公开(公告)日：2010-01-12

申请号：US11510545

申请日：2006-08-25

申请人： Thomas B. Brightman ,  Andrew D. Funk ,  David J. Husak ,  Edward J. McLellan ,  Andrew T. Brown ,  John F. Brown ,  James A. Farrell ,  Donald A. Priore ,  Mark A. Sankey ,  Paul Schmitt

发明人： Thomas B. Brightman ,  Andrew D. Funk ,  David J. Husak ,  Edward J. McLellan ,  Andrew T. Brown ,  John F. Brown ,  James A. Farrell ,  Donald A. Priore ,  Mark A. Sankey ,  Paul Schmitt

IPC分类号： G06F15/76

CPC分类号： H04L49/10 ,  H04L49/254 ,  H04L49/3009 ,  H04L49/3036

摘要： An integrated circuit (203) for use in processing streams of data generally and streams of packets in particular. The integrated circuit (203) includes a number of packet processors (307, 313, 303), a table look up engine (301), a queue management engine (305) and a buffer management engine (315). The packet processors (307, 313, 303) include a receive processor (421), a transmit processor (427) and a risc core processor (401), all of which are programmable. The receive processor (421) and the core processor (401) cooperate to receive and route packets being received and the core processor (401) and the transmit processor (427) cooperate to transmit packets. Routing is done by using information from the table look up engine (301) to determine a queue (215) in the queue management engine (305) which is to receive a descriptor (217) describing the received packet's payload.

摘要翻译： 一种集成电路（203），用于一般地处理数据流和特别是数据包流。 集成电路（203）包括多个分组处理器（307,313,303），表查找引擎（301），队列管理引擎（305）和缓冲器管理引擎（315）。 分组处理器（307,313,303）包括接收处理器（421），发射处理器（427）和芯片处理器（401），所有这些都是可编程的。 接收处理器（421）和核心处理器（401）协作以接收和路由正在接收的分组，并且核心处理器（401）和发射处理器（427）协作传送分组。 通过使用来自表查找引擎（301）的信息来确定队列管理引擎（305）中要接收描述所接收的分组的有效载荷的描述符（217）的队列（215）来完成路由。

公开(公告)号：US5949788A

公开(公告)日：1999-09-07

申请号：US852146

申请日：1997-05-06

申请人： G. Stodel Friedman ,  David J. Husak ,  Stephen L. Van Seters ,  Edward A. Heiner, Jr.

发明人： G. Stodel Friedman ,  David J. Husak ,  Stephen L. Van Seters ,  Edward A. Heiner, Jr.

IPC分类号： H04K1/10 ,  H04L29/04 ,  H04L29/06

CPC分类号： H04L12/4604

摘要： A method and apparatus are disclosed which permit multipoint trunking among a plurality of network devices connected by a trunk comprising at least two physical links. A trunk control message protocol (TCMP) is described which assures that message traffic may be delivered to the respective devices over the individual links of the trunk prior to inclusion of the respective links as active links in the trunk. The trunk acts as a single network port for each of the devices utilizing the trunk and is layered over a plurality of media access control (MAC) ports which interface to the respective links. The disclosed trunking technique and apparatus permit the bandwidth of the trunk to be increased in increments through the addition of links to the trunk.

摘要翻译： 公开了一种允许通过包括至少两个物理链路的中继线连接的多个网络设备之间的多点中继的方法和装置。 描述了一种中继控制消息协议（TCMP），其确保在将各个链路包括在中继线中的活动链路之前，消息流量可以经由中继线的各个链路被传送到相应的设备。 中继线充当利用中继线的每个设备的单个网络端口，并且分层在与相应链路相连接的多个媒体访问控制（MAC）端口上。 所公开的中继技术和装置允许通过添加到中继线的链路来增加中继线的带宽。

公开(公告)号：US5317697A

公开(公告)日：1994-05-31

申请号：US738581

申请日：1991-07-31

申请人： David J. Husak ,  Jay L. Madnick ,  Stephen A. Hauser

发明人： David J. Husak ,  Jay L. Madnick ,  Stephen A. Hauser

IPC分类号： G06F13/40 ,  G06F13/20

CPC分类号： G06F13/4072

摘要： A live insertion and removal mechanism assures that a sub-assembly being inserted or removed from a live electronic assembly does not disrupt system power and buses and is protected against the negative affects of current surge. An active current control device and related circuitry, and a connector having a plurality of graduated pin lengths effect a controlled ramp-up and ramp-down of power to the sub-assembly inserted into and removed from the live electronic assembly. Additionally, means are provided for effectively disconnecting selected output drivers from signal and control paths to avoid damage to the drivers upon insertion or removal of the sub-assembly from the live assembly.

摘要翻译： 活动插入和移除机构确保从活动电子组件插入或移除的子组件不会中断系统电源和总线，并且可以防止电流浪涌的负面影响。 有源电流控制装置和相关电路以及具有多个刻度的引脚长度的连接器对被插入和移出电子组件的子组件的功率进行受控的上升和下降。 此外，提供了用于有效地将选定的输出驱动器与信号和控制路径断开的装置，以避免在从组件插入或拆卸子组件时损坏驱动器。