Location estimation of wireless terminals through pattern matching of deduced and empirical signal-strength measurements
    1.
    发明申请
    Location estimation of wireless terminals through pattern matching of deduced and empirical signal-strength measurements 有权
    通过推导和经验信号强度测量的模式匹配对无线终端的位置估计

    公开(公告)号:US20050014518A1

    公开(公告)日:2005-01-20

    申请号:US10798988

    申请日:2004-03-12

    CPC分类号: H04W64/00 G01S5/0252

    摘要: A method of estimating the location of a wireless terminal is disclosed. The illustrative embodiment of the present invention is based on the observation that the signal strength of a signal from a transmitter is different at some locations, and, therefore, the location of a wireless terminal can be estimated by comparing the signal strength it currently observes against a map or database that correlates locations to signal strengths. Furthermore, the illustrative embodiment deduces the signal strength of one or more base stations' control channels at the wireless terminal based on the principal of reciprocity, whether or not the wireless terminal can actually receive the base stations' control channels but so long as the base station can receive and measure the uplink signal from the wireless terminal. The deduced signal-strength measurements can then used—alone or in combination with the empirical signal-strength measurements—to estimate the location of the wireless terminal.

    摘要翻译: 公开了一种估计无线终端位置的方法。 本发明的说明性实施例基于以下观察:来自发射机的信号的信号强度在某些位置不同,因此无线终端的位置可以通过将当前观察到的信号强度与 将位置与信号强度相关联的地图或数据库。 此外,说明性实施例基于互易原则来推断无线终端上的一个或多个基站控制信道的信号强度,无论无线终端是否可以实际接收基站的控制信道,但是只要基站 站可以从无线终端接收和测量上行链路信号。 然后推断的信号强度测量可以单独使用或与经验信号强度测量结合使用,以估计无线终端的位置。

    Location determination using RF fingerprinting
    2.
    发明申请
    Location determination using RF fingerprinting 有权
    使用RF指纹识别的位置确定

    公开(公告)号:US20070026870A1

    公开(公告)日:2007-02-01

    申请号:US11194151

    申请日:2005-08-01

    IPC分类号: H04Q7/20

    CPC分类号: G01S5/0252 H04W64/00

    摘要: A method for determining the location of a mobile unit (mobile unit) in a wireless communication system is disclosed. The illustrative embodiment provides a computationally-efficient technique for reducing the number of possible positions that have to be analyzed. In particular, the illustrative embodiment eliminates possible positions for the mobile unit from consideration by considering which signals the mobile unit can—and cannot—receive and the knowledge of where those signals can and cannot be received.

    摘要翻译: 公开了一种在无线通信系统中确定移动单元(移动单元)的位置的方法。 说明性实施例提供了用于减少必须分析的可能位置的数量的计算有效的技术。 特别地,说明性实施例通过考虑移动单元可以接收和不能接收哪些信号以及这些信号可以而且不能被接收的位置来消除移动单元的可能位置。

    Computationally-Efficient Estimation of the Location of a Wireless Terminal Based on Pattern Matching
    3.
    发明申请
    Computationally-Efficient Estimation of the Location of a Wireless Terminal Based on Pattern Matching 有权
    基于模式匹配的无线终端位置的计算有效估计

    公开(公告)号:US20060240844A1

    公开(公告)日:2006-10-26

    申请号:US11419652

    申请日:2006-05-22

    IPC分类号: H04Q7/20

    摘要: A method of using a non-GPS-derived technique to estimate the location of an Assisted-GPS-enabled wireless terminal for the purposes of generating location-specific assistance data for the wireless terminal is disclosed. The wireless terminal then uses the assistance data to acquire and process one or more GPS signals and to derive information that is probative of the wireless terminal's location. The GPS-derived location information is then combined with non-GPS-derived location to form an estimate of the location of the wireless terminal that is better than can be derived from either alone. This combination of GPS-derived and non-GPS techniques is particularly useful when the wireless terminal can only acquire one or two GPS signals because it is not possible to determine the location of the wireless terminal with only two GPS signals alone.

    摘要翻译: 公开了一种使用非GPS导出技术估计辅助GPS功能的无线终端的位置,以便为无线终端生成位置特定辅助数据的目的。 然后,无线终端使用辅助数据来获取和处理一个或多个GPS信号,并且导出证明无线终端的位置的信息。 然后将GPS导出的位置信息与非GPS导出的位置相结合,以形成无线终端位置的估计,该估计优于单独导出的。 当无线终端只能获取一个或两个GPS信号时,GPS导出和非GPS技术的这种组合是特别有用的,因为不可能仅仅使用两个GPS信号来确定无线终端的位置。

    AMALGAM TIP TEMPERATURE CONTROL FOR AN ELECTRODELESS LAMP
    5.
    发明申请
    AMALGAM TIP TEMPERATURE CONTROL FOR AN ELECTRODELESS LAMP 有权
    用于无电极灯的AMALGAM提示温度控制

    公开(公告)号:US20130099664A1

    公开(公告)日:2013-04-25

    申请号:US13278263

    申请日:2011-10-21

    IPC分类号: H01J65/04

    摘要: A electrodeless lamp including a fluorescent discharge vessel, a tip, an amalgam, a lamp core, and a heater. The vessel contains a gas having a partial vapor pressure and a fluorescent material. The tip has an inner end engaging the vessel, and an opening in communication with the gas. The amalgam is positioned within the opening, in heat transfer relation with the tip. When the temperature of the amalgam decreases, mercury vapor in the gas condensates onto the amalgam, causing a decrease in the partial vapor pressure of the gas. The opposite occurs when the amalgam temperature increases. The lamp core generates a magnetic flux, causing an electrical discharge in the gas. The heater includes a positive temperature coefficient connected to a winding of the lamp core. The heater is in heat transfer relation with the tip and heats the tip when the electrodeless lamp is in a dimming mode.

    摘要翻译: 一种无电极灯,包括荧光放电容器,尖端,汞齐,灯芯和加热器。 容器含有具有部分蒸气压的气体和荧光材料。 尖端具有接合容器的内端和与气体连通的开口。 汞齐位于开口内,与尖端的热传递关系。 当汞齐的温度降低时,气体中的汞蒸气冷凝到汞齐上,导致气体的部分蒸气压降低。 当汞合金温度升高时,会出现相反的情况。 灯芯产生磁通,引起气体中的放电。 加热器包括连接到灯芯的绕组的正温度系数。 当无电极灯处于调光模式时,加热器与尖端传热关系,并加热尖端。

    Dynamically configurable switch for distributed test lab
    6.
    发明授权
    Dynamically configurable switch for distributed test lab 有权
    用于分布式测试实验室的动态配置开关

    公开(公告)号:US07984194B2

    公开(公告)日:2011-07-19

    申请号:US12236482

    申请日:2008-09-23

    摘要: A switch is provided which is dynamically configurable via a network port thereon. One switch is employed to establish point-to-point electrical connections between devices under test (DUTs) and host devices coupled to upstream ports and downstream ports on the switch respectively. Two switches coupled to a network are employed to facilitate a distributed test lab. DUTs are coupled to upstream ports on a first switch which, based on communication with a test controller over the network, establishes a logical connection between the upstream port coupled to a particular DUT and the network. Host devices are coupled to downstream ports on a second switch which, based on communication with the test controller over the network, establishes a logical connection between the downstream port coupled to a particular host device and the network. A logical connection is also established across the network between the particular DUT and host device.

    摘要翻译: 提供了可以经由其上的网络端口动态配置的交换机。 采用一个开关来建立被测器件(DUT)和耦合到开关上游端口和下游端口的主机之间的点对点电连接。 耦合到网络的两个开关用于促进分布式测试实验室。 DUT被耦合到第一交换机上的上游端口,其基于与网络上的测试控制器的通信,在耦合到特定DUT的上行端口与网络之间建立逻辑连接。 主机设备耦合到第二交换机上的下游端口,其基于通过网络与测试控制器的通信,在耦合到特定主机设备的下游端口与网络之间建立逻辑连接。 在特定DUT和主机设备之间的网络上也建立了逻辑连接。

    Pressure balancing spool mixing valve
    9.
    发明申请
    Pressure balancing spool mixing valve 审中-公开
    压力平衡阀芯混合阀

    公开(公告)号:US20100058534A1

    公开(公告)日:2010-03-11

    申请号:US12230962

    申请日:2008-09-09

    IPC分类号: E03C1/04

    CPC分类号: F16K11/0787

    摘要: There is herein described a single handle pressure balancing spool valve for mixing user-adjustable hot and cold water flow to a fixture such as a shower or tub and to adjust the rate of mixed water flow. A rotatable disc with hot and cold intake openings and an outlet opening are provided which control the degree of covering on the inlet ports of the valve. Pressure balancing of inlet pressure is provided within the valve by means of a piston-cylinder assembly to compensate for fluctuations in water inlet pressure to avoid scalding of the user.

    摘要翻译: 这里描述了单手柄压力平衡滑阀,用于将用户可调节的热水和冷水流混合到诸如淋浴或浴缸的固定装置,并且调节混合水流量的速率。 提供了具有热和冷进气开口和出口的旋转盘,其控制阀的入口上的覆盖程度。 入口压力的压力平衡通过活塞 - 气缸组件提供在阀内,以补偿进水压力的波动,以避免用户的烫伤。

    Radio frequency identification with a slot antenna
    10.
    发明授权
    Radio frequency identification with a slot antenna 有权
    射频识别与缝隙天线

    公开(公告)号:US07619531B2

    公开(公告)日:2009-11-17

    申请号:US11489149

    申请日:2006-07-18

    IPC分类号: G08B13/14

    摘要: Techniques for a radio frequency identification (RFID) device are provided. The device includes a slot antenna having at least one slot disposed in a first substrate. A strap is disposed across the slot. The strap includes a second substrate and an integrated circuit. The integrated circuit is electrically coupled to the slot antenna. In a specific embodiment, a thickness of a metal slot antenna is at least ¼th an inch. The RFID device can also be associated with a location, and be attached to a pallet rack.

    摘要翻译: 提供射频识别(RFID)设备的技术。 该装置包括具有设置在第一基板中的至少一个槽的缝隙天线。 一条吊带横跨该槽设置。 带包括第二基板和集成电路。 集成电路电连接到缝隙天线。 在具体实施例中,金属缝隙天线的厚度至少为1/4英寸。 RFID设备还可以与位置相关联,并且被附接到托盘架。