公开(公告)号：US07826862B2

公开(公告)日：2010-11-02

申请号：US11770387

申请日：2007-06-28

申请人： Ajay Malik ,  Vinh-Phuong Le ,  Mahender Vangati

发明人： Ajay Malik ,  Vinh-Phuong Le ,  Mahender Vangati

IPC分类号： H04B7/00

CPC分类号： H04W64/00 ,  G01S5/0252

摘要： Methods and systems are provided for determining the location of a first wireless device (e.g., a mobile unit) within a wireless network comprising a second wireless device (e.g., an access point). The method includes determining a signal strength contour associated with RF communication between the access point and the mobile unit, and adding a correction factor to the signal strength contour to produce a corrected signal strength contour, wherein the correction factor includes the sums of the differences between the transmit power and the antenna gain associated with the mobile unit and the access point. In an alternate scheme involving stored fingerprint data, a correction factor is introduced based on the differences between antenna gains and transmit power associated with the mobile unit under consideration and the mobile unit used for generating the fingerprint data. The systems and methods disclosed herein are applicable, for example, to networks operating in accordance with 802.11, RFID, WiMax, WAN, Bluetooth, Zigbee, UWB, and the like.

摘要翻译： 提供了用于确定包括第二无线设备（例如，接入点）的无线网络内的第一无线设备（例如，移动单元）的位置的方法和系统。 该方法包括确定与接入点和移动单元之间的RF通信相关联的信号强度轮廓，以及向信号强度轮廓添加校正因子以产生校正信号强度轮廓，其中校正因子包括： 与移动单元和接入点相关联的发射功率和天线增益。 在涉及存储的指纹数据的替代方案中，基于天线增益和与所考虑的移动单元相关联的发射功率与用于生成指纹数据的移动单元之间的差异来引入校正因子。 这里公开的系统和方法例如适用于根据802.11，RFID，WiMax，WAN，蓝牙，Zigbee，UWB等操作的网络。

公开(公告)号：US20090085743A1

公开(公告)日：2009-04-02

申请号：US11864280

申请日：2007-09-28

申请人： Ranjith Ravi ,  Saurabh Bhargava ,  Shilpa Moghe ,  Ajay Malik

发明人： Ranjith Ravi ,  Saurabh Bhargava ,  Shilpa Moghe ,  Ajay Malik

IPC分类号： G08B13/14

CPC分类号： G06K7/0008 ,  G01S5/02

摘要： Methods and systems are provided for controlling RF reader operations based the location of the RF reader. One method includes determining that the RF reader is located within a zone associated with an access level and enabling or disabling the RF reader based on the access level. A system includes multiple access ports (APs) defining multiple zones including an access level for the RF reader. The system also includes a switch configured to determine a present zone of the mobile RF reader and enabling the RF reader based on the access level of the present zone. Another system includes means for receiving a signal from an access port and means for determining a location of the RF reader based on the signal, the location associated with an access level. The system also includes means for enabling or disabling the RF reader based on the access level.

摘要翻译： 提供了用于基于RF读取器的位置来控制RF读取器操作的方法和系统。 一种方法包括确定RF读取器位于与访问级相关联的区域内，并且基于访问级别启用或禁用RF读取器。 系统包括定义多个区域的多个接入端口（AP），包括RF读取器的访问级别。 该系统还包括被配置为基于当前区域的访问级别来确定移动RF读取器的当前区域并使能RF读取器的开关。 另一系统包括用于从接入端口接收信号的装置和用于基于与接入电平相关联的信号的信号来确定RF读取器的位置的装置。 该系统还包括用于基于访问级别启用或禁用RF阅读器的装置。

公开(公告)号：US20090077620A1

公开(公告)日：2009-03-19

申请号：US12121434

申请日：2008-05-15

申请人： Ranjith Chirakkoly RAVI ,  Saurabh Bhargava ,  Shilpa Moghe ,  Ajay Malik

发明人： Ranjith Chirakkoly RAVI ,  Saurabh Bhargava ,  Shilpa Moghe ,  Ajay Malik

IPC分类号： G06F21/20 ,  H04W84/02

CPC分类号： H04W12/08 ,  H04L63/102 ,  H04L63/105 ,  H04L63/107 ,  H04W84/12

摘要： Described are a method and a system for granting and denying network access to a device based on a location of that device. A method includes determining a current location of at least one mobile unit, permitting network access to a wireless network to the mobile unit if a network access policy of the mobile unit is configured to permit network access for the current location, and denying network access to the wireless network to the mobile unit if the network access policy of the mobile unit is configured to restrict network access for the current location. The system includes a processor generating network access policy data for at least one mobile unit, the network access policy data configured to one of permit network access and restrict network access for the at least one mobile unit depending on a location of the at least one mobile unit within an operating environment, a wireless switch providing a wireless network infrastructure, a location determination module calculating a current location of the at least one mobile unit, and a plurality of wireless access points in communication with the wireless switch, wherein each one of the wireless access points one of permits network access and restricts network access to the at least one mobile unit based on the current location and the network access policy data for the at least one mobile unit.

摘要翻译： 描述了一种基于该设备的位置来授予和拒绝对设备的网络访问的方法和系统。 一种方法包括确定至少一个移动单元的当前位置，如果移动单元的网络访问策略被配置为允许当前位置的网络访问，则允许网络访问到移动单元的无线网络，并且拒绝网络访问 如果移动单元的网络访问策略被配置为限制当前位置的网络访问，则到移动单元的无线网络。 该系统包括处理器，用于为至少一个移动单元生成网络访问策略数据，所述网络访问策略数据被配置为允许网络访问之一并且限制所述至少一个移动单元的网络接入，这取决于所述至少一个移动单元的位置 提供无线网络基础设施的无线交换机，计算所述至少一个移动单元的当前位置的位置确定模块以及与所述无线交换机通信的多个无线接入点，其中， 无线接入点是允许网络接入之一，并且基于当前位置和至少一个移动单元的网络接入策略数据来限制对至少一个移动单元的网络接入。

公开(公告)号：US20080080550A1

公开(公告)日：2008-04-03

申请号：US11529984

申请日：2006-09-29

申请人： Ajay Malik

发明人： Ajay Malik

IPC分类号： H04J3/22

CPC分类号： H04L67/34 ,  G06F9/4411 ,  H04L69/18 ,  H04W8/245

摘要： An RF switch as described herein can communicate with different types of data transmitting devices such as RF readers, RFID tags, and other RF devices. The RF switch employs “plug-and-play” reader interface adapter modules, which can be pre-installed in the RF switch or downloaded to the RF switch as needed. Each interface adapter module represents or includes a different data protocol (or suite of protocols) that is compatible with a particular class, category, type, or group of data transmitting device. The use of these interface adapter modules enables the RF switch to be deployed in a protocol-agnostic form that is scalable and upgradeable in the field.

摘要翻译： 如本文所述的RF开关可以与诸如RF读取器，RFID标签和其他RF设备的不同类型的数据发送设备进行通信。 RF开关采用“即插即用”读卡器接口适配器模块，可以预先安装在RF开关中或根据需要下载到RF开关。 每个接口适配器模块表示或包括与特定类别，类型，类型或数据发送设备组兼容的不同数据协议（或协议集合）。 使用这些接口适配器模块可以使RF切换器以协议无关的形式进行部署，该形式可在现场进行扩展和升级。

公开(公告)号：US20080080435A1

公开(公告)日：2008-04-03

申请号：US11529981

申请日：2006-09-29

申请人： Ajay Malik ,  Sujai Hajela

发明人： Ajay Malik ,  Sujai Hajela

IPC分类号： H04Q7/24

CPC分类号： H04W24/08 ,  H04W84/12

摘要： A system for monitoring the state of an RF network generally includes a plurality of wireless devices coupled to the network and having one or more associated antennae, the wireless devices configured to process data received from a plurality of RF elements within range of the antenna. An RF switch is coupled to the network and configured to receive and transmit the data over the network, the RF switch having a memory configured to store a plurality of performance indicators, wherein each of the performance indicators is associated with an operational characteristic of one or more of the plurality of wireless devices. A display is coupled to the network for displaying a visual representation of the plurality of performance indicators.

摘要翻译： 用于监视RF网络的状态的系统通常包括耦合到网络并具有一个或多个相关天线的多个无线设备，所述无线设备被配置为处理从天线的范围内的多个RF元件接收的数据。 RF开关耦合到网络并且被配置为通过网络接收和发送数据，RF开关具有被配置为存储多个性能指示符的存储器，其中每个性能指示符与一个或多个性能指示器的操作特性相关联， 更多的多个无线设备。 显示器耦合到网络以显示多个性能指示符的视觉表示。

公开(公告)号：US20080079577A1

公开(公告)日：2008-04-03

申请号：US11529990

申请日：2006-09-29

申请人： Ajay Malik

发明人： Ajay Malik

IPC分类号： G08B13/14 ,  H04Q5/22 ,  G08B1/08

CPC分类号： G06K17/00 ,  G06K7/10356

摘要： An RFID system provides opportunistic locationing of RFID tags and associated assets in environments where multiple tags are read from multiple readers. A radio frequency identification (RFID) system includes a first RFID reader coupled to the network and having a first antenna associated therewith. The first reader is configured to read a first set of tag IDs from a first set of RFID tags within a first range of the first antenna. A second RFID reader is coupled to the network and has a second antenna associated therewith. The second RFID reader is configured to read a second set of tag IDs from a second set of RFID tags within a second range of the second antenna. An RF switch is coupled to the network and is configured to receive the first set of tag IDs and the second set of tag IDs from the first RFID reader and the second RFID reader. The RF switch is configured to reconcile the location of an asset having a particular tag ID when the particular tag ID is an element of both the first set of tag IDs and the second set of tag IDs.

摘要翻译： RFID系统在从多个读取器读取多个标签的环境中提供RFID标签和相关资产的机会定位。 射频识别（RFID）系统包括耦合到网络并且具有与其相关联的第一天线的第一RFID读取器。 第一读取器被配置为从第一天线的第一范围内的第一组RFID标签读取第一组标签ID。 第二RFID读取器耦合到网络并且具有与其相关联的第二天线。 第二RFID读取器被配置为从第二天线的第二范围内的第二组RFID标签读取第二组标签ID。 RF开关耦合到网络并且被配置为从第一RFID读取器和第二RFID读取器接收第一组标签ID和第二组标签ID。 RF开关被配置为当特定标签ID是第一组标签ID和第二组标签ID的元素时，调整具有特定标签ID的资产的位置。

公开(公告)号：US20080002702A1

公开(公告)日：2008-01-03

申请号：US11479686

申请日：2006-06-30

申请人： Zeljko Bajic ,  Ajay Malik

发明人： Zeljko Bajic ,  Ajay Malik

IPC分类号： H04L12/56

CPC分类号： G06F9/5055 ,  H04L47/10

摘要： System flexibility and ease-of-design is greatly enhanced by using a multicore abstraction layer (MCAL) to interface between a multicore hardware platform, a device operating system and the packet transfer functions of the system. Systems and techniques are described for processing a data packet received at a network interface of a network infrastructure device (such as a wireless switch) or other computing system, particularly using multi-core processors. A classification handler initially classifies the data packet. A plurality of protocol handlers each associated with a data protocol processes the data packet if the classification of the data packet matches the data protocol associated with the protocol handler, and one of several application handlers each associated with a user applications processes the data packet if the classification of the data packet matches the user application associated with the application handler. The MCAL is configured to send the data packet to the classification handler after the packet is initially received, and to subsequently direct the packet toward one of the protocol or application handlers in response to the classification of the data packet. MCAL further contains a set of the containers for handlers. Real application, protocol and classification handlers register with MCAL and are modules developed outside of the MCAL.

摘要翻译： 通过使用多核抽象层（MCAL）在多核硬件平台，设备操作系统和系统的数据包传输功能之间进行接口，大大提高了系统灵活性和易于设计。 描述了用于处理在网络基础设施设备（诸如无线交换机）或其他计算系统的网络接口处接收的数据分组的系统和技术，特别是使用多核处理器。 分类处理器首先对数据包进行分类。 如果数据分组的分类与与协议处理程序相关联的数据协议匹配，则与数据协议相关联的多个协议处理程序处理数据分组，并且每个与用户应用相关联的几个应用处理程序之一处理数据分组，如果 数据包的分类与应用程序处理程序关联的用户应用程序相匹配。 MCAL被配置为在分组最初被接收之后将数据分组发送到分类处理器，并随后响应于数据分组的分类而将分组指向协议或应用处理程序之一。 MCAL还包含一组处理程序的容器。 实际的应用程序，协议和分类处理程序向MCAL注册，并且是在MCAL之外开发的模块。

公开(公告)号：US08135415B2

公开(公告)日：2012-03-13

申请号：US12118053

申请日：2008-05-09

申请人： Ajay Malik ,  Robert Perri

发明人： Ajay Malik ,  Robert Perri

IPC分类号： H04W24/00

CPC分类号： H04M1/7253 ,  H04M1/72572 ,  H04M2250/12 ,  H04W52/0261 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/166

摘要： Described are integrated active tags in a mobile device. The mobile device may include (a) a transceiver broadcasting a first location beacon when a capacity of a battery of the mobile device is above a predetermined threshold; and (b) a tag broadcasting a second location beacon when the capacity of the battery of the mobile device is below the predetermined threshold.

摘要翻译： 描述为移动设备中的集成活动标签。 移动设备可以包括（a）当移动设备的电池的容量高于预定阈值时收发器广播第一位置信标; 和（b）当移动设备的电池的容量低于预定阈值时，广告第二位置信标的标签。

公开(公告)号：US07912469B2

公开(公告)日：2011-03-22

申请号：US11876529

申请日：2007-10-22

申请人： Ajay Malik

发明人： Ajay Malik

IPC分类号： H04W16/18

CPC分类号： H04W16/20 ,  H04W16/10

摘要： A method is used for deployment of a wireless infrastructure. The method comprises deploying a plurality of access ports in a facility based on a layout that depends on a type of the facility. The method comprises receiving at least one parameter from at least one of the plurality of access points. The method comprises dynamically determining settings of the plurality of access points based on the at least one parameter.

摘要翻译： 一种方法用于部署无线基础设施。 该方法包括基于取决于设施类型的布局在设施中部署多个接入端口。 该方法包括从多个接入点中的至少一个接收点接收至少一个参数。 该方法包括基于至少一个参数动态地确定多个接入点的设置。

公开(公告)号：US07903624B2

公开(公告)日：2011-03-08

申请号：US11679237

申请日：2007-02-27

申请人： Ajay Malik ,  Sujai Hajela

发明人： Ajay Malik ,  Sujai Hajela

IPC分类号： H04Q7/24

CPC分类号： H04W84/12 ,  H04W48/08

摘要： A wireless data communication system includes an access port configured to wirelessly communicate with a plurality of mobile units within multiple basic service sets (BSS), and a wireless switch having multiple predefined wireless local area networks (WLANs). The wireless switch is configured to automatically map the WLANs to the basic service sets and transmit to the access port a configuration template depending upon the type of access port. In one embodiment, there are n basic service sets, each having a corresponding basic service set identifier (BSSID), and m WLANs, each having a corresponding WLAN index, wherein the m WLAN indices are uniformly mapped to the n BSSIDs such that each BSSID has substantially the same number of WLAN indices mapped thereto. In a particular embodiment, there are n=4 BSSIDs per access port and m=16 pre-mapped WLANs. In this way, the wireless switch and respective access ports can be set-up in a simplified manner, in much the same way that set-up is performed with traditional access points.

摘要翻译： 无线数据通信系统包括被配置为与多个基本服务集（BSS）内的多个移动单元进行无线通信的接入端口和具有多个预定义无线局域网（WLAN）的无线交换机。 无线交换机被配置为自动将WLAN映射到基本服务集，并根据接入端口的类型向接入端口发送配置模板。 在一个实施例中，存在n个基本服务集合，每个基本服务集合具有相应的基本服务集标识符（BSSID）和m个WLAN，每个WLAN具有相应的WLAN索引，其中m个WLAN索引被均匀地映射到n个BSSID，使得每个BSSID 具有与其映射的大致相同数量的WLAN索引。 在特定实施例中，每个接入端口有n = 4个BSSID，m = 16个预映射WLAN。 以这种方式，可以以与传统接入点进行设置大致相同的方式，以简化的方式来设置无线交换机和各个接入端口。