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    System and method for saving battery power prior to deploying an asset tag
    1.
    发明申请
    System and method for saving battery power prior to deploying an asset tag 审中-公开
    在部署资产标签之前节省电池电量的系统和方法

    公开(公告)号：US20070159331A1

    公开(公告)日：2007-07-12

    申请号：US11324677

    申请日：2006-01-03

    申请人： Chris Zegelin

    发明人： Chris Zegelin

    IPC分类号： G08B13/14 ,  H04Q5/22

    CPC分类号： G06K19/0723 ,  G06K19/0701 ,  G06K19/0705

    摘要： A system and method for locating assets within an area, each asset having a wireless circuit configured for low power consumption, the method comprising. The method including the steps of providing power to an RFID tag portion of the wireless circuit, and supplying power to a high power portion of the wireless circuit after a triggering event, for example: the purchase of the asset. The high power portion of the wireless circuit is prevented from accessing power from the battery prior to the triggering event.

    摘要翻译： 一种用于定位区域内的资产的系统和方法，每个资产具有被配置为低功耗的无线电路，所述方法包括。 该方法包括以下步骤：向无线电路的RFID标签部分提供电力，以及在触发事件之后向无线电路的高功率部分供电，例如：购买资产。 防止在触发事件之前无线电路的高功率部分访问电池的电力。

    LOCATION SYSTEM WITH CALIBRATION MONITORING
    2.
    发明申请
    LOCATION SYSTEM WITH CALIBRATION MONITORING 有权
    具有校准监测的位置系统

    公开(公告)号：US20050146464A1

    公开(公告)日：2005-07-07

    申请号：US10750111

    申请日：2003-12-31

    申请人： Chris Zegelin ,  David Goren

    发明人： Chris Zegelin ,  David Goren

    IPC分类号： G01S1/02 ,  G01S1/68 ,  G01S13/74 ,  G01S19/03 ,  G01S19/09 ,  G01S19/21 ,  G01S19/46 ,  G01S3/02

    CPC分类号： G01S1/022 ,  G01S1/68 ,  G01S13/74

    摘要： A radio signal based object location system is provided wherein location devices are provided on articles for use in locating the articles, and wherein a database is maintained relating characteristics of radio signal transmissions between the location devices and fixed devices to locations within an area. A method is provided for maintaining the database to reflect propagation conditions. Location devices are provided at fixed positions within the area. Data representing radio signal transmission characteristics between the fixed position location devices and fixed devices is recorded. Transmissions between the fixed position location devices and the fixed devices is monitored to determine changes in the characteristics of radio signal transmissions from the recorded data.

    摘要翻译： 提供了一种基于无线电信号的对象定位系统，其中定位设备提供在用于定位物品的物品上，并且其中维护数据库将位置设备和固定设备之间的无线电信号传输的特性与区域内的位置相关联。 提供了一种维护数据库以反映传播条件的方法。 位置设备被提供在该区域内的固定位置处。 记录表示固定位置定位装置与固定装置之间的无线信号传输特性的数据。 监视固定位置定位装置和固定装置之间的传输，以确定从所记录数据的无线电信号传输的特性的变化。

    Method for mobile unit location estimate in a wireless LAN
    3.
    发明授权
    Method for mobile unit location estimate in a wireless LAN 有权
    无线局域网中移动单元位置估计的方法

    公开(公告)号：US07542770B2

    公开(公告)日：2009-06-02

    申请号：US10861182

    申请日：2004-06-04

    申请人： Chris Zegelin

    发明人： Chris Zegelin

    IPC分类号： G01S3/02 ,  H04B17/00 ,  H04B7/00 ,  H04Q7/20 ,  H04M3/00

    CPC分类号： H04W12/06 ,  H04L63/0492 ,  H04L63/10 ,  H04L67/18 ,  H04W4/02 ,  H04W4/21 ,  H04W64/00 ,  H04W84/12 ,  H04W88/08

    摘要： Association request messages received by one or more access points of a wireless local area network are used to infer the location of a mobile unit requesting association. Association may be refused for security purposed if it is determined that the mobile unit is not within an area services by the wireless network. In addition the inferred location can be used to assign the mobile unit to an access point for association.

    摘要翻译： 使用由无线局域网的一个或多个接入点接收到的关联请求消息来推断请求关联的移动单元的位置。 如果确定移动单元不在由无线网络服务的区域内，则协议可能被拒绝用于安全性。 此外，推断的位置可以用于将移动单元分配给接入点进行关联。

    System and method for interrogating and updating electronic shelf labels
    4.
    发明申请
    System and method for interrogating and updating electronic shelf labels 审中-公开
    用于询问和更新电子货架标签的系统和方法

    公开(公告)号：US20070159298A1

    公开(公告)日：2007-07-12

    申请号：US11324717

    申请日：2006-01-03

    申请人： Chris Zegelin ,  Vinh-Phuong Le

    发明人： Chris Zegelin ,  Vinh-Phuong Le

    IPC分类号： G05B19/00

    CPC分类号： G06K17/0022

    摘要： The present invention describes a system for interrogating or updating electronic shelf tags in a store or warehouse without the need for a complicated or expensive infrastructure. In the system, a single portable RFID device is carried by a worker to perform tasks such as organizing goods on the shelves of a store or a warehouse. As the worker traverses the aisles he may use the portable RFID device to scan each RFID tag as it comes within range. Through a wireless connection to a central controller on which pricing information is stored, the portable RFID device is able to verify that the information located in each RFID tag is correct. If the information is not correct, it can be updated with the correct information from the central controller. Alternatively, the RFID device may be self-contained and have all the correct pricing information stored on an internal memory.

    摘要翻译： 本发明描述了一种用于询问或更新商店或仓库中的电子货架标签的系统，而不需要复杂或昂贵的基础设施。 在该系统中，单个便携式RFID设备由工作人员承担以执行诸如在商店或仓库的货架上组织商品的任务。 当工作人员穿过走道时，他可以使用便携式RFID设备在范围内扫描每个RFID标签。 通过与存储定价信息的中央控制器的无线连接，便携式RFID设备能够验证位于每个RFID标签中的信息是否正确。 如果信息不正确，可以使用中央控制器的正确信息进行更新。 或者，RFID设备可以是独立的并且具有存储在内部存储器上的所有正确的定价信息。

    Interference mitigation in mobile units having location transmitters
    6.
    发明授权
    Interference mitigation in mobile units having location transmitters 有权
    具有位置发射机的移动单元中的干扰减轻

    公开(公告)号：US08169991B2

    公开(公告)日：2012-05-01

    申请号：US10837439

    申请日：2004-04-30

    申请人： Sarosh Vesuna ,  Chris Zegelin

    发明人： Sarosh Vesuna ,  Chris Zegelin

    IPC分类号： H04Q7/28

    CPC分类号： H04W48/08 ,  H04W64/00 ,  H04W88/06

    摘要： A mobile device for data communications has a radio circuit for data communications with a wireless network access point and a radio tag for transmitting location-identifying radio signals. The radio circuit and the radio tag are co-located on a circuit board or are commonly powered. The operation of the radio circuit and the radio tag are segregated in time to avoid interference. Standard wireless network interface protocol functions are exploited to identify time intervals in which the radio circuit is inactive for data communications. These time intervals are used to operate the radio tag to transmit the location-identifying radio signals.

    摘要翻译： 用于数据通信的移动设备具有用于与无线网络接入点进行数据通信的无线电电路和用于发送位置识别无线电信号的无线电标签。 无线电电路和无线电标签共同位于电路板上或通常被供电。 无线电电路和无线电标签的操作及时分离以避免干扰。 利用标准无线网络接口协议功能来识别无线电电路对于数据通信不活动的时间间隔。 这些时间间隔用于操作无线电标签以发送位置识别无线电信号。

    WLAN roaming based on location
    7.
    发明授权
    WLAN roaming based on location 有权
    WLAN漫游基于位置

    公开(公告)号：US07127258B2

    公开(公告)日：2006-10-24

    申请号：US10705277

    申请日：2003-11-10

    申请人： Chris Zegelin

    发明人： Chris Zegelin

    IPC分类号： H04Q7/20

    CPC分类号： H04W48/20

    摘要： A wireless data communications system has mobile units which become associated with access points. Association between a mobile unit and an access point is changed as mobile units move within an area having a plurality of access points. Selection of an access point for association with a mobile unit is made according to selection criteria including a plurality of selection parameters. The system includes arrangements for determining location of a mobile unit within the area. The selection parameters include location of the mobile unit or direction of movement of the mobile unit when there are a plurality of access points available for association with the mobile unit.

    摘要翻译： 无线数据通信系统具有与接入点相关联的移动单元。 当移动单元在具有多个接入点的区域内移动时，移动单元和接入点之间的关联被改变。 根据包括多个选择参数的选择标准来选择与移动单元相关联的接入点。 该系统包括用于确定该区域内的移动单元的位置的布置。 当存在可用于与移动单元关联的多个接入点时，选择参数包括移动单元的位置或移动单元的移动方向。

    WLAN roaming based on location
    8.
    发明申请
    WLAN roaming based on location 有权
    WLAN漫游基于位置

    公开(公告)号：US20050185615A1

    公开(公告)日：2005-08-25

    申请号：US10705277

    申请日：2003-11-10

    申请人： Chris Zegelin

    发明人： Chris Zegelin

    IPC分类号： G06F20060101 ,  G06F15/173 ,  H04L12/28 ,  H04L12/56 ,  H04W36/08 ,  H04W36/22 ,  H04W36/32 ,  H04W48/20 ,  H04W64/00 ,  H04W84/12

    CPC分类号： H04W48/20

    摘要： A wireless data communications system has mobile units which become associated with access points. Association between a mobile unit and an access point is changed as mobile units move within an area having a plurality of access points. Selection of an access point for association with a mobile unit is made according to selection criteria including a plurality of selection parameters. The system includes arrangements for determining location of a mobile unit within the area. The selection parameters include location of the mobile unit or direction of movement of the mobile unit when there are a plurality of access points available for association with the mobile unit.

    摘要翻译： 无线数据通信系统具有与接入点相关联的移动单元。 当移动单元在具有多个接入点的区域内移动时，移动单元和接入点之间的关联被改变。 根据包括多个选择参数的选择标准来选择与移动单元相关联的接入点。 该系统包括用于确定该区域内的移动单元的位置的布置。 当存在可用于与移动单元关联的多个接入点时，选择参数包括移动单元的位置或移动单元的移动方向。

    Real time location system
    9.
    发明申请
    Real time location system 审中-公开
    实时定位系统

    公开(公告)号：US20050054350A1

    公开(公告)日：2005-03-10

    申请号：US10648712

    申请日：2003-08-26

    申请人： Chris Zegelin

    发明人： Chris Zegelin

    IPC分类号： G01S5/00 ,  G01S5/02 ,  G01S19/48 ,  H04L20060101 ,  H04W64/00 ,  H04Q7/20

    CPC分类号： H04W64/00 ,  G01S5/0063 ,  G01S5/0252

    摘要： Portable devices are provided with location data determined at a server computer by comparing radio signal characteristics to a database of characteristics. In one arrangement the server additionally downloads a portion of the database of radio signal characteristics to the portable device and the portable device uses the downloaded portion of the data base to determine if its location has changed. The portable device may either update the location data that it has previously downloaded from the server or alternately may signal the server to provide either updated location data or an increased rate of location data update.

    摘要翻译： 通过将无线电信号特性与特征数据库进行比较，便携式设备提供了在服务器计算机确定的位置数据。 在一种布置中，服务器另外将无线电信号特征的数据库的一部分下载到便携式设备，并且便携式设备使用数据库的下载部分来确定其位置是否已经改变。 便携式设备可以更新其先前从服务器下载的位置数据，或者交替地向服务器发信号以提供更新的位置数据或增加的位置数据更新速率。