System framework for mobile device location
    1.
    发明申请

    公开(公告)号:US20180329018A9

    公开(公告)日:2018-11-15

    申请号:US12924618

    申请日:2010-10-01

    CPC classification number: G01S5/0252 G01S19/05 G01S19/42

    Abstract: A method for estimating the location of a beacon from an ensemble of measurements associated with said beacon, where, contained in each measurement, are GPS data from which surfaces of location may be extracted, together with the ID's of beacons detectable at the point of measurement, is disclosed. The method comprises extracting the canonical set of surfaces of location implicit in each of the associated measurements, and determining the estimate of the location of the beacon as the point for which a weighted sum of the squares of the distances to each of the surfaces so extracted is minimized. A system for the compilation of a database of beacon locations from measurements containing a time-stamped recording of the composite GPS signal (which recording is referred to as a datagram), together with the ID's and associated signal strengths of beacons detectable at the point of measurement, is also disclosed. The system comprises GPS signal processing means for extracting, from each time-stamped datagram, the canonic set of surfaces of location, and beacon location estimation means for estimating the location of a beacon from an ensemble of surfaces of location associated with said beacon.

    Switching power converter with gated oscillator controller
    3.
    发明授权
    Switching power converter with gated oscillator controller 有权
    具有门控振荡器控制器的开关电源转换器

    公开(公告)号:US06275018B1

    公开(公告)日:2001-08-14

    申请号:US09585928

    申请日:2000-06-02

    CPC classification number: H02M3/156 H02M2001/0032 H02M2001/0041 Y02B70/16

    Abstract: A switching power converter for conversion of power between a source and a load includes a power switch, a free running oscillator for producing a drive signal to cycle the power switch ON and OFF, wherein the power switch, when coupled to the source and cycled ON and OFF, defines a pulse of power at the load, and a controller which regulates an output voltage at the load by varying the number of pulses of power occurring at the load over time.

    Abstract translation: 用于在源和负载之间转换功率的开关电源转换器包括电源开关,用于产生驱动信号以使电源开关接通和断开的自由运行振荡器,其中电源开关耦合到源并循环接通时 和OFF,定义负载时的功率脉冲;以及控制器,其通过改变在负载下发生的功率脉冲的数量来调节负载时的输出电压。

    Signal processing techniques for improving the sensitivity of GPS receivers
    4.
    发明申请
    Signal processing techniques for improving the sensitivity of GPS receivers 审中-公开
    用于提高GPS接收机灵敏度的信号处理技术

    公开(公告)号:US20110080321A1

    公开(公告)日:2011-04-07

    申请号:US12587100

    申请日:2009-10-02

    CPC classification number: G01S19/22 G01S19/28 G01S19/36

    Abstract: The use of multiple GPS sensors provides the conceptual framework for novel techniques for reducing the minimum signal strength required by a GPS assistance system to acquire and accurately track GPS satellites at or near the horizon. A strong signal attenuation system for synthesizing GPS satellite-specific I/F signals, enabling more efficient and effective acquisition of GPS satellites, is disclosed, comprising N+1 reference GPS sensors, each with an omni-directional antenna and front end, for down converting composite GPS satellite signals, and strong signal suppression (SSS) means for synthesizing, from the I/F signals produced by the N+1 reference GPS sensors, a set of one or more I/F signals (corresponding to a set of designated satellites), each with at least N of the strongest potentially-interfering satellite signals suppressed.

    Abstract translation: 使用多个GPS传感器提供了用于降低GPS辅助系统所需的最小信号强度以获取并准确地跟踪在地平线附近或附近的GPS卫星的新技术的概念框架。 公开了一种用于合成GPS卫星专用I / F信号的强信号衰减系统,使得能够更有效和有效地获取GPS卫星,其包括N + 1个参考GPS传感器,每个具有全向天线和前端,用于向下 转换复合GPS卫星信号和强信号抑制(SSS)装置,用于根据由N + 1参考GPS传感器产生的I / F信号合成一组一个或多个I / F信号(对应于一组指定的 卫星),其中每个具有至少N个最强的潜在干扰卫星信号被抑制。

    Signal processing techniques for improving the sensitivity of GPS receivers
    5.
    发明申请
    Signal processing techniques for improving the sensitivity of GPS receivers 审中-公开
    用于提高GPS接收机灵敏度的信号处理技术

    公开(公告)号:US20100283673A1

    公开(公告)日:2010-11-11

    申请号:US12587096

    申请日:2009-10-02

    CPC classification number: G01S19/22

    Abstract: A system for measuring the pseudo range from a target GPS sensor to a designated navigational satellite, for use in a satellite positioning system (SPS) is comprised of multiple GPS sensors for receiving and recording portions of the signals transmitted by designated navigational satellites, the recordings referred to as datagrams; and means for transmitting the datagrams to a datagram processing facility wherein the pseudo range from the target GPS sensor to the designated navigational satellite is derived. The datagram processing facility for deriving the pseudo range is further comprised of a pseudo range engine for deriving a pseudo range from a datagram originating with said target GPS sensor, the location of which is to be determined, the derivation accomplished with the aid of a perfect reference; a perfect reference engine for generating a perfect reference from one or more satellite-specific datagrams: and a strong signal suppression engine for synthesizing satellite-specific datagrams from I/F signals recorded by reference GPS sensors designated for the express purpose of perfect reference generation. The perfect reference reduces the minimum signal strength required to acquire and accurately track GPS satellites at or near the horizon.

    Abstract translation: 用于测量从目标GPS传感器到用于卫星定位系统(SPS)的指定导航卫星的伪距离的系统由用于接收和记录由指定导航卫星发送的信号的部分的多个GPS传感器组成,记录 简称数据报; 以及用于将数据报发送到数据报处理设施的装置,其中从目标GPS传感器到指定的导航卫星的伪距离被导出。 用于导出伪距离的数据报处理设备还包括伪距引擎,用于从源于所述目标GPS传感器的数据报导出伪距离,该距离引擎的位置将被确定,借助于完美的 参考; 用于从一个或多个卫星专用数据报产生完美参考的完美参考引擎:以及强大的信号抑制引擎,用于根据为完美参考生成的明确目的而被指定的参考GPS传感器记录的I / F信号合成卫星专用数据报。 完美的参考降低了获取并准确跟踪地平线或附近的GPS卫星所需的最小信号强度。

    Power converter driven by power pulse and sense pulse
    6.
    发明授权
    Power converter driven by power pulse and sense pulse 有权
    功率转换器由功率脉冲和感测脉冲驱动

    公开(公告)号:US06882552B2

    公开(公告)日:2005-04-19

    申请号:US10306830

    申请日:2002-11-27

    Abstract: A power converter for delivering power from a source to a load includes a switch, pulse generation circuitry producing one or more drive signals for cycling the switch ON and OFF, wherein if the switch is cycled ON and OFF according to a cycle of a drive signal, power is transferred from the source to the load, a comparator for comparing a feedback signal approximating an output voltage at the load to a reference, and a controller coupled to the pulse generation circuitry for controlling which, if any, cycle of a drive signal cycles the switch in response to an output of the comparator.

    Abstract translation: 用于将功率从源传送到负载的功率转换器包括开关,产生一个或多个用于使开关接通和断开的驱动信号的脉冲发生电路,其中如果根据驱动信号的周期来切换开关 功率从源极传输到负载,用于将接近负载输出电压的反馈信号与参考电压进行比较的比较器和耦合到脉冲发生电路的控制器,用于控制驱动信号的哪个周期(如果有的话) 响应于比较器的输出使开关周期。

    System framework for mobile device location
    7.
    发明申请
    System framework for mobile device location 审中-公开
    移动设备定位系统框架

    公开(公告)号:US20120200457A1

    公开(公告)日:2012-08-09

    申请号:US13134540

    申请日:2011-06-10

    CPC classification number: G01S19/46 G01S5/0036 G01S5/0252

    Abstract: A method for estimating the location of a mobile Wi-Fi signal receiver from a database of independently obtained survey data, each survey datum consisting of a surface of location derived from a composite GPS signal, together with a Wi-Fi signature measured concurrently with the GPS signal measurement, is disclosed. The method comprises receiving a Wi-Fi signature, measured and recorded by said mobile. Wi-Fi signal receiver, at the location to be estimated; extracting from the database, an algorithmically-determined subset of surfaces of location, utilizing the Wi-Fi signature recorded by said mobile Wi-Fi signal receiver, and estimating the location of said mobile Wi-Fi signal receiver from said algorithmically-determined subset of surfaces of location. In one embodiment, the algorithmically-determined subset consists of those surfaces of location with Wi-Fi signatures identical to the mobile Wi-Fi signature; and the estimate of the location of said mobile Wi-Fi signal receiver is determined as the point for which the sum of the squares of the distances to each of the surfaces of location included in said algorithmically-determined subset is minimized.

    Abstract translation: 一种用于从独立获得的测量数据的数据库中估计移动Wi-Fi信号接收机的位置的方法,每个调查数据由从复合GPS信号导出的位置表面组成,以及与所述测量数据同时测量的Wi-Fi签名 GPS信号测量,被公开。 该方法包括接收由所述移动台测量和记录的Wi-Fi签名。 Wi-Fi信号接收机,在估计的位置; 从所述数据库中提取算法确定的位置表面子集,利用由所述移动Wi-Fi信号接收机记录的Wi-Fi签名,以及从所述算法确定的子集中估计所述移动Wi-Fi信号接收器的位置 位置的表面 在一个实施例中,算法确定的子集由具有与移动Wi-Fi签名相同的Wi-Fi签名的位置表面组成; 并且所述移动Wi-Fi信号接收机的位置的估计被确定为包括在所述算术确定的子集中的位置的每个表面的距离的平方和的最小值的点。

    System framework for mobile device location
    8.
    发明授权
    System framework for mobile device location 有权
    移动设备定位系统框架

    公开(公告)号:US07994981B1

    公开(公告)日:2011-08-09

    申请号:US12807463

    申请日:2010-09-07

    CPC classification number: G01S5/0242 G01S19/10

    Abstract: A method for estimating the location of a beacon from an ensemble of measurements associated with said beacon, where, contained in each measurement, are GPS data from which surfaces of location may be extracted, together with the ID's of beacons detectable at the point of measurement, is disclosed. The method comprises extracting the canonical set of surfaces of location implicit in each of the associated measurements, and determining the estimate of the location of the beacon as the point for which the sum of the squares of the distances to each of the surfaces so extracted is minimized. A system for the compilation of a database of beacon locations from measurements containing a time-stamped recording of the composite GPS signal (which recording is referred to as a datagram), together with the ID's and associated signal strengths of beacons detectable at the point of measurement, is also disclosed. The system comprises GPS signal processing means for extracting, from each time-stamped datagram, the canonic set of surfaces of location, and beacon location estimation means for estimating the location of a beacon from an ensemble of surfaces of location associated with said beacon.

    Abstract translation: 用于从与所述信标相关联的测量的集合估计信标的位置的方法,其中包含在每个测量中的GPS数据是可以从其中提取位置表面的GPS数据以及在测量点处可检测的信标的ID ,被披露。 该方法包括提取每个相关联的测量中隐含的位置的规范表面集合,并且确定信标的位置的估计,作为与所提取的每个表面的距离的平方和的和为 最小化。 一种用于从包含复合GPS信号(该记录被称为数据报)的时间戳记录的测量的汇编数据库中的信标位置的数据库的系统,以及在该点处可检测的信标的ID和相关信号强度 测量也被披露。 该系统包括GPS信号处理装置,用于从每个时间戳数据报中提取位置表面的标准集合,以及信标位置估计装置,用于从与所述信标相关联的位置的表面集合估计信标的位置。

    Wireless battery charging of electronic devices such as wireless headsets/headphones
    9.
    发明授权
    Wireless battery charging of electronic devices such as wireless headsets/headphones 有权
    电子设备如无线耳机/耳机的无线电池充电

    公开(公告)号:US07548040B2

    公开(公告)日:2009-06-16

    申请号:US11494874

    申请日:2006-07-28

    CPC classification number: H04R1/1025 H04R1/1016 H04R2420/07

    Abstract: This disclosure relates to wireless battery charging of electronic devices such as wireless headsets/headphones. In one embodiment, an electronic device is provided comprising a speaker comprising a coil, and the coil is operative both to cause the speaker to produce sound and to receive energy transferred to the coil via inductive coupling. The received energy is used to recharge a rechargeable battery in the electronic device. In other embodiments, the coil used to receive the energy that recharges the battery is received by a coil other than the coil in the speaker.

    Abstract translation: 本公开涉及诸如无线耳机/耳机之类的电子设备的无线电池充电。 在一个实施例中,提供一种电子设备,其包括包括线圈的扬声器,并且线圈可操作以使扬声器产生声音并且经由感应耦合接收传递到线圈的能量。 所接收的能量用于为电子设备中的可再充电电池充电。 在其他实施例中,用于接收对电池充电的能量的线圈由扬声器中的线圈以外的线圈接收。

    Phase-controlled AC-DC power converter
    10.
    发明授权
    Phase-controlled AC-DC power converter 有权
    相控AC-DC电源转换器

    公开(公告)号:US06707285B2

    公开(公告)日:2004-03-16

    申请号:US10041664

    申请日:2002-01-10

    CPC classification number: H02M3/285 H02M1/10 H02M7/23

    Abstract: An AC to DC power converter, comprising an input, an output, a plurality of pass elements connected in parallel between the input and output, and a controller for switching ON a subset of the plurality of pass elements. The controller sets an ON time for at least one pass element in the subset based on a load at the output and a phase angle of an input voltage at the input. The input voltage may comprise a single or multi-phase signal. The number of pass elements in the subset is based on the load. In one embodiment, each pass element comprising a pair of series-connected field effect transistors coupled source to source and operated in fully enhanced mode.

    Abstract translation: 一种AC至DC功率转换器,包括输入端,输出端,输入端和输出端之间并联连接的多个通过元件,以及用于接通多个通过元件的子集的控制器。 控制器基于输出端的负载和输入端的输入电压的相位角,为子集中的至少一个通过元件设置导通时间。 输入电压可以包括单相或多相信号。 子集中的通过元素的数量基于负载。 在一个实施例中,每个通过元件包括一对串联连接的场效应晶体管,其将源极耦合到源极并以完全增强的模式操作。

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