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    Adaptive synthetic positioning
    1.
    发明授权
    Adaptive synthetic positioning 有权

    公开(公告)号：US09671502B2

    公开(公告)日：2017-06-06

    申请号：US14819823

    申请日：2015-08-06

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Mohamed Youssef ,  Andi Jakupi ,  Bruce McCullough ,  William Stewart

    IPC: G01C21/00 ,  G01S19/48 ,  G06F17/30 ,  G01C21/28 ,  G01S19/50

    CPC classification number: G01S19/48 ,  G01C21/28 ,  G01S19/50 ,  G06F17/30241

    Abstract: Methods, systems, and portable devices capable of adaptive synthetic positioning while in a dead zone are described. In one method, when a portable device having a Global Navigational Satellite System (GNSS) receiver and a dead zone database enters a dead zone, it determines whether the dead zone database has a record for the dead zone. If it does, it retrieves parameters corresponding to the dead zone from the database and calculates synthetic position solutions using the retrieved parameters while in the dead zone. The portable device may also use the synthetic position solutions to help calculate position solutions when exiting the dead zone. If a dead zone database record does not exist, the portable device determines parameters for calculating synthetic position solutions in the dead zone and a new dead zone database record indicating a set of parameters based on the determined set of parameters is created.

    Automatic and wireless sharing of location information between a location-aware device and a location-unaware device
    4.
    发明授权
    Automatic and wireless sharing of location information between a location-aware device and a location-unaware device 有权
    在位置感知设备和位置不知情的设备之间自动和无线地共享位置信息

    公开(公告)号：US09161328B2

    公开(公告)日：2015-10-13

    申请号：US13902728

    申请日：2013-05-24

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Mohamed Youssef ,  Bruce McCullough ,  Andi Jakupi

    IPC: H04W64/00

    CPC classification number: H04W64/00

    Abstract: Disclosed system and method enable a location-unaware device to know its approximate location by wirelessly near-field coupling it to a geo-proximate location-aware device such as a Global Navigation Satellite System—(GNSS)-enabled mobile phone. The geo-location data are conveyed in accordance with a predefined signaling protocol. Request and response mechanisms within the devices take the form of predefined data packets that convey geo-location and the devices' unique identification (ID) information.

    Abstract translation: 公开的系统和方法使得位置不知情的设备能够通过无线近场耦合到诸如全球导航卫星系统（GNSS）的移动电话之类的地理位置感知设备来了解其近似位置。 地理位置数据根据预定义的信令协议传送。 设备内的请求和响应机制采取预定义的数据包的形式，传达地理位置和设备的唯一标识（ID）信息。

    Method and apparatus for frame synchronization in a positioning system
    5.
    发明授权
    Method and apparatus for frame synchronization in a positioning system 有权
    定位系统中帧同步的方法和装置

    公开(公告)号：US09287921B2

    公开(公告)日：2016-03-15

    申请号：US14457497

    申请日：2014-08-12

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Mohamed Youssef ,  Bruce McCullough ,  Steven Gronemeyer

    IPC: H04B1/00 ,  H04B1/7073 ,  G01S19/13 ,  G01S19/24 ,  H04B1/7075

    CPC classification number: H04B1/7073 ,  G01S19/13 ,  G01S19/243 ,  H04B1/70755 ,  H04B2201/70715

    Abstract: A method for soft frame synchronization in a navigational receiver is provided. A distance between bits of a sync pattern received by the navigational receiver and a known sync pattern is computed. A probability of detection value for the received sync pattern based on the distance is assigned. A confidence level for the received sync pattern using the probability of detection value is computed. The confidence level is compared with a confidence threshold. If the confidence level is greater than or equal to the confidence threshold, the confidence level of the received sync pattern is updated to generate a credibility of the sync pattern. The credibility of the received sync pattern is compared with a predetermined credibility value and, if the credibility of the received sync pattern is greater than or equal to the predetermined credibility value, synchronization of the navigational receiver is performed using the received sync pattern.

    Abstract translation: 提供了一种在导航接收机中进行软帧同步的方法。 计算由导航接收机接收的同步模式的位之间的距离和已知的同步模式。 分配基于距离的接收到的同步图案的检测值的概率。 计算使用检测值概率的接收到的同步模式的置信度。 将置信水平与置信度阈值进行比较。 如果置信水平大于或等于置信阈值，则更新所接收的同步模式的置信水平以产生同步模式的可信度。 将接收到的同步码型的可信度与预定的可信度值进行比较，并且如果所接收的同步码型的可信度大于或等于预定的可信度值，则使用所接收的同步码型执行导航接收机的同步。

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