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1. 发明申请

US20060022801A1 RFID tag data acquisition system 有权
标题翻译： RFID标签数据采集系统
公开(公告)号：US20060022801A1
公开(公告)日：2006-02-02
申请号：US11194128
申请日：2005-07-29
申请人： David Husak , Robert Stephenson , Michael Grady , Scott Barvick , Pattabhiraman Krishna , Chilton Cabot , Jeffrey Fischer
发明人： David Husak , Robert Stephenson , Michael Grady , Scott Barvick , Pattabhiraman Krishna , Chilton Cabot , Jeffrey Fischer
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： 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.
摘要翻译： RFID系统的架构，便于在RFID环境中访问RFID标签数据。该架构包括多个RFID读取器，每个读取器可操作以传送第一RF信号，用于扫描布置在与读取器相关联的RF覆盖区域内的至少一个RFID标签，并且接收至少一个包括标签数据的第二RF信号响应扫描标签。该架构进一步包括至少一个可操作以执行至少一个客户端应用的主计算机以及可通信地耦合到多个读取器和至少一个主计算机的至少一个控制器/处理器。控制器/处理器可操作以控制多个读取器的操作，以处理由多个读取器接收的标签数据，并且将经处理的标签数据提供给至少一个主计算机以供至少一个客户端应用使用在其上执行。

2. 发明申请

US20060022800A1 Scheduling in an RFID system having a coordinated RFID tag reader array 有权
标题翻译：在具有协调的RFID标签读取器阵列的RFID系统中进行调度
公开(公告)号：US20060022800A1
公开(公告)日：2006-02-02
申请号：US11194127
申请日：2005-07-29
申请人： Pattabhiraman Krishna , Jeffrey Fischer , David Husak , Robert Stephenson
发明人： Pattabhiraman Krishna , Jeffrey Fischer , David Husak , Robert 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。

3. 发明申请

US20060022815A1 Interference monitoring in an RFID system 有权
标题翻译： RFID系统中的干扰监测
公开(公告)号：US20060022815A1
公开(公告)日：2006-02-02
申请号：US11194145
申请日：2005-07-29
申请人： Jeffrey Fischer , David Husak , Pattabhiraman Krishna
发明人： Jeffrey Fischer , David Husak , Pattabhiraman Krishna
IPC分类号： G08B26/00
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。干涉特性也可以通过计算和共同监测的组合来估计。

4. 发明申请

US20070099623A1 Configuration management system and method for use in an RFID system including a multiplicity of RFID readers 失效
标题翻译：用于包括多个RFID读取器的RFID系统中的配置管理系统和方法
公开(公告)号：US20070099623A1
公开(公告)日：2007-05-03
申请号：US11581788
申请日：2006-10-16
申请人： Robert Stephensen , Michael Grady , Scott Barvick , David Husak , Lin Zhou , Nirav Shah , Pattabhiraman Krishna , Jeffrey Fischer , Chilton Cabot
发明人： Robert Stephensen , Michael Grady , Scott Barvick , David Husak , Lin Zhou , Nirav Shah , Pattabhiraman Krishna , Jeffrey Fischer , Chilton Cabot
IPC分类号： H04Q7/20 , G08B13/14
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。

5. 发明申请

US20060170565A1 Location virtualization in an RFID system 有权
标题翻译： RFID系统中的位置虚拟化
公开(公告)号：US20060170565A1
公开(公告)日：2006-08-03
申请号：US11194144
申请日：2005-07-29
申请人： David Husak , Pattabhiraman Krishna , Peter Spreadborough , Jeffrey Fischer
发明人： David Husak , Pattabhiraman Krishna , Peter Spreadborough , Jeffrey Fischer
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 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。

6. 发明申请

US20120056719A1 UHF RFID wristband with a long read range 有权
标题翻译： UHF RFID腕带长读取范围
公开(公告)号：US20120056719A1
公开(公告)日：2012-03-08
申请号：US13199289
申请日：2011-08-25
申请人： Pattabhiraman Krishna , Scott Barvick , John W. Thorburn, JR.
发明人： Pattabhiraman Krishna , Scott Barvick , John W. Thorburn, JR.
IPC分类号： H04Q5/22
CPC分类号： G06K19/07762 , G06K7/10316
摘要： A radio frequency identification wristband for attaching to a patient that has a band, a wristband housing attached to or integral with said band, one or more radio frequency identification tag(s) or tag inlay(s), an insulator material, wherein said wristband housing is adhered to said radio frequency identification tag or tag inlay, said radio frequency identification tag or tag inlay is adhered to an isolator material, and wherein said insulator material is nearest to the skin of the patient and insulates the radio frequency identification tag or tag inlay from the patient's skin.
摘要翻译：一种无线电频率识别腕带，用于附接到具有带，腕带壳体附接到所述带或与所述带一体的患者，一个或多个射频识别标签或标签镶嵌物，绝缘体材料，其中所述腕带住房被粘附到所述射频识别标签或标签嵌体上，所述射频识别标签或标签镶嵌物被粘附到隔离材料上，并且其中所述绝缘体材料最靠近患者皮肤并绝缘射频识别标签或标签从患者的皮肤镶嵌。

7. 发明申请

US20090256683A1 CONFIGURATION MANAGEMENT SYSTEM AND METHOD FOR USE IN AN RFID SYSTEM INCLUDING A MULTIPLICITY OF RFID READERS 审中-公开
标题翻译：配置管理系统和使用RFID系统的方法，其中包括RFID读写器的多项
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。

8. 发明授权

US07817014B2 Scheduling in an RFID system having a coordinated RFID tag reader array 有权
标题翻译：在具有协调的RFID标签读取器阵列的RFID系统中进行调度
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。

9. 发明授权

US07567179B2 Configuration management system and method for use in an RFID system including a multiplicity of RFID readers 失效
标题翻译：用于包括多个RFID读取器的RFID系统中的配置管理系统和方法
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。

10. 发明授权

US06563837B2 Method and apparatus for providing work-conserving properties in a non-blocking switch with limited speedup independent of switch size 失效
标题翻译：用于在非阻塞开关中提供节能特性的方法和装置，其具有与开关尺寸无关的有限加速度
公开(公告)号：US06563837B2
公开(公告)日：2003-05-13
申请号：US09021245
申请日：1998-02-10
申请人： Pattabhiraman Krishna , Naimish S. Patel , Anna Charny , Robert J. Simcoe
发明人： Pattabhiraman Krishna , Naimish S. Patel , Anna Charny , Robert J. Simcoe
IPC分类号： H04L1256
CPC分类号： H04L12/5601 , H04L49/1576 , H04L49/3081 , H04L2012/5652 , H04L2012/5679 , H04L2012/5681 , H04Q11/0478
摘要： A switching method and apparatus operates as a work conserving network device. An arbiter using an arbitration algorithm controls a switch fabric interconnecting input ports and output ports. To switch cells, a virtual output queue of an input port is selected that corresponds to an output port with a lowest occupancy rating and a request is sent to this output port. In a greedy version of the algorithm, input ports may send requests to the lowest occupied output port for which they have a cell. In a non-greedy version, requests may only be sent if that input port has a cell for the lowest occupied output port in the entire network device. An output port that receives one or more requests from input ports uses an input port selection algorithm to select an input port from which to receive a packet. After as many input and output ports are matched as is possible in a phase, the packets for those matched ports are transferred across the switch. The switch fabric operates with a speedup of only twice that of the input port data rates and is still work conserving.
摘要翻译：切换方法和装置作为工作节省网络设备进行操作。使用仲裁算法的仲裁器控制互连输入端口和输出端口的交换结构。为了切换单元，选择与具有最低占用额定值的输出端口对应的输入端口的虚拟输出队列，并且向该输出端口发送请求。在算法的贪心版本中，输入端口可以将请求发送到它们具有单元的最低占用输出端口。在非贪心版本中，如果该输入端口在整个网络设备中具有用于最低占用输出端口的单元，则只能发送请求。从输入端口接收一个或多个请求的输出端口使用输入端口选择算法来选择从其接收分组的输入端口。在一个阶段中尽可能多地匹配输入和输出端口，这些匹配端口的数据包将通过交换机传输。交换结构的加速速度仅为输入端口数据速率的两倍，并且仍然保持工作。

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