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    Method and apparatus for hierarchical map tiling
    21.
    发明授权
    Method and apparatus for hierarchical map tiling 有权
    分层地图拼接的方法和装置

    公开(公告)号：US09247379B2

    公开(公告)日：2016-01-26

    申请号：US14165386

    申请日：2014-01-27

    Applicant: QUALCOMM Incorporated

    Inventor： Yin Chen ,  Payam Pakzad ,  Eric K. Holm

    IPC: H04W24/00 ,  H04W4/02

    CPC classification number: H04W4/02 ,  H04W4/021

    Abstract: A method for processing assistance data associated with positioning of a mobile device as described herein includes estimating an initial location of the mobile device within an area; designating the initial location of the mobile device as a focal point; retrieving a subset of hierarchical assistance data as a function of the focal point; and generating a multi-level assistance data structure for the area centered at the focal point.

    Abstract translation: 用于处理与本文所描述的移动设备的定位相关联的辅助数据的方法包括估计移动设备在一个区域内的初始位置; 指定移动设备的初始位置作为焦点; 检索作为焦点的函数的分层辅助数据的子集; 并为以焦点为中心的区域生成多级辅助数据结构。

    MOTION DIRECTION DETERMINATION AND APPLICATION
    22.
    发明申请
    MOTION DIRECTION DETERMINATION AND APPLICATION 审中-公开
    运动方向确定和应用

    公开(公告)号：US20150316579A1

    公开(公告)日：2015-11-05

    申请号：US14268955

    申请日：2014-05-02

    Applicant: QUALCOMM Incorporated

    Inventor： Payam Pakzad ,  Victor Kulik

    IPC: G01P15/02

    CPC classification number: G01P15/02 ,  G01C21/16 ,  G01C22/006 ,  G06F3/011 ,  G06F3/017 ,  G06F3/0346

    Abstract: This disclosure provides devices, computer programs, and methods for estimating reliability metrics. In one aspect, a mobile device includes sensors for measuring acceleration data, a processor, and a memory storing instructions that implement a plurality of modules. The modules include a motion direction estimation module for estimating a motion direction based on the acceleration data. The modules also include a reliability metric computation module for estimating reliability metrics. For example, the reliability metric computation module can estimate a first reliability metric based on a process used to estimate the motion direction, a second reliability metric based on a measure of stability of the device, and a third reliability metric based on a measure of consistency in the estimated motion direction over a period. The reliability metric computation module calculates a composite reliability metric that indicates a measure of certainty in the estimated motion direction based on the estimated reliability metrics.

    Abstract translation: 本公开提供了用于估计可靠性度量的设备，计算机程序和方法。 一方面，移动设备包括用于测量加速度数据的传感器，处理器和存储实现多个模块的指令的存储器。 模块包括用于基于加速度数据估计运动方向的运动方向估计模块。 模块还包括用于估计可靠性度量的可靠性度量计算模块。 例如，可靠性度量计算模块可以基于用于估计运动方向的过程来估计第一可靠性度量，基于设备的稳定性的度量的第二可靠性度量，以及基于一致性的度量的第三可靠性度量 在一段时间内估计的运动方向。 可靠性度量计算模块基于估计的可靠性度量计算指示估计的运动方向上的确定性的度量的复合可靠性度量。

    MOTION STATE BASED MOBILE DEVICE POSITIONING
    25.
    发明申请
    MOTION STATE BASED MOBILE DEVICE POSITIONING 有权
    基于运动状态的移动设备定位

    公开(公告)号：US20150148057A1

    公开(公告)日：2015-05-28

    申请号：US14089636

    申请日：2013-11-25

    Applicant: QUALCOMM Incorporated

    Inventor： Payam Pakzad ,  Yin Chen

    IPC: H04W64/00 ,  H04W52/02

    CPC classification number: H04W52/0261 ,  G01C21/206 ,  G01S5/0236 ,  G01S5/0263 ,  H04W64/00 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/26

    Abstract: Various techniques are provided which may be implemented as methods, apparatuses and articles of manufacture for use by a mobile device or one or more computing devices to provide for or otherwise support motion state based mobile device positioning. In an example, a method may be implemented at a mobile device to identify two or more subsets of grid points corresponding to an electronic map representing a particular environment, select one of the two or more subsets of grid points for use in position estimation based, at least in part, on a motion state of the mobile device, and determine an estimated position of the mobile device based, at least in part, on the selected subset of grid points.

    Abstract translation: 提供的各种技术可以被实现为用于由移动设备或一个或多个计算设备用于提供或以其他方式支持基于运动状态的移动设备定位的方法，设备和制品。 在一个示例中，可以在移动设备处实现一种方法来识别对应于表示特定环境的电子地图的两个或更多个网格点子集，选择两个或更多个网格点子集中的一个以用于基于位置估计的位置估计， 至少部分地基于移动设备的运动状态，并且至少部分地基于所选择的网格点子集来确定移动设备的估计位置。

    ADAPTIVE PROBABILISTIC STEP DETECTION FOR PEDESTRIAN POSITIONING
    26.
    发明申请
    ADAPTIVE PROBABILISTIC STEP DETECTION FOR PEDESTRIAN POSITIONING 审中-公开
    自适应的步态检测

    公开(公告)号：US20140257766A1

    公开(公告)日：2014-09-11

    申请号：US13787531

    申请日：2013-03-06

    Applicant: QUALCOMM INCORPORATED

    Inventor： Sameera Poduri ,  Payam Pakzad

    IPC: G06N7/00

    CPC classification number: G06N7/005 ,  G06F17/5009

    Abstract: Performance of step detectors in mobile devices can be enhanced by calculating the probability of a step and providing the probability to an application. Adaptive data models can also be used that can be based on different types of motion (walking with mobile device in hand, climbing stairs with mobile device in purse, running with mobile device in pocket, etc.), and can adapt to a particular user's motion. Where applications allow, embodiments can further utilize data modeling to detect a pattern (e.g., a series of steps) and adjust the probability calculation accordingly.

    Abstract translation: 可以通过计算步骤的概率并向应用程序提供概率来增强移动设备中的步进检测器的性能。 还可以使用自适应数据模型，其可以基于不同类型的运动（与手中的移动设备一起行走，用钱包中的移动设备爬楼梯，在口袋中运行移动设备等），并且可以适应特定用户的 运动。 在应用允许的情况下，实施例可以进一步利用数据建模来检测模式（例如，一系列步骤）并相应地调整概率计算。

    SYSTEM AND/OR METHOD FOR PEDESTRIAN NAVIGATION
    27.
    发明申请
    SYSTEM AND/OR METHOD FOR PEDESTRIAN NAVIGATION 审中-公开
    用于PEDESTRIAN导航的系统和/或方法

    公开(公告)号：US20140080515A1

    公开(公告)日：2014-03-20

    申请号：US14088055

    申请日：2013-11-22

    Applicant: QUALCOMM Incorporated

    Inventor： Payam Pakzad

    IPC: H04W64/00

    CPC classification number: H04W64/003 ,  G01S5/0278 ,  H04W64/00

    Abstract: Disclosed are methods, apparatuses and systems for tracking a location of a mobile device based, at least in part, on measurements over time. In response to measurements, particles in a motion model may be propagated in a first routing graph covering an area. Propagated particles may be indicative of a direction of movement along a second routing graph covering the same area or a larger area in some embodiments.

    Abstract translation: 公开了至少部分地基于随时间的测量来跟踪移动设备的位置的方法，设备和系统。 响应于测量，运动模型中的粒子可以在覆盖区域的第一路线图中传播。 在一些实施例中，传播的粒子可以指示沿着覆盖相同区域或更大面积的第二路线图的运动方向。

    Motion direction determination and application
    29.
    发明授权
    Motion direction determination and application 有权

    公开(公告)号：US10281484B2

    公开(公告)日：2019-05-07

    申请号：US14268968

    申请日：2014-05-02

    Applicant: QUALCOMM Incorporated

    Inventor： Payam Pakzad ,  Victor Kulik

    IPC: G01C21/16 ,  G06F3/01 ,  G06F3/0346 ,  G01C22/00 ,  G01P13/00 ,  G01P15/00

    Abstract: This disclosure provides devices, computer programs and methods for determining a motion direction. In one aspect, a mobile device includes one or more sensors configured to measure acceleration data in each of one or more directions. The mobile device also includes one or more processors and a memory storing instructions that, when executed by the one or more processors, implement a motion direction estimation module. The motion direction estimation module is configured to identify a use case for the mobile device based at least in part on the acceleration data. The motion direction estimation module also is configured to select a set of one or more parameters based on the identified use case. The motion direction estimation module is further configured to calculate an estimated motion direction of the mobile device based on the acceleration data and the respective set of parameters corresponding to the identified use case.

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