公开(公告)号：US20150296479A1

公开(公告)日：2015-10-15

申请号：US14253020

申请日：2014-04-15

Applicant: QUALCOMM Incorporated

Inventor： Hui CHAO ,  Yin CHEN ,  Payam PAKZAD ,  Andrea CARNEVALI

IPC: H04W64/00 ,  H04W52/02

CPC classification number: H04W64/006 ,  G01C21/206 ,  G01S5/0236 ,  H04W4/02 ,  H04W4/33 ,  H04W52/0206 ,  H04W88/02 ,  Y02D70/142

Abstract: Systems, apparatus, and methods for estimating the location of a wireless device include determining the location estimate based on accessible access points and without using a received signal strength indicator. In some embodiments, the location estimate is determined based on a center of mass of the accessible access points, a closest accessible access point, a center of mass of N access points, an average angle of the accessible access points, or a Parzen density of accessible access point distributions.

Abstract translation: 用于估计无线设备的位置的系统，装置和方法包括基于可访问接入点来确定位置估计，并且不使用接收到的信号强度指示符。 在一些实施例中，基于可访问接入点的质心，最接近的接入点，N个接入点的质量中心，可访问接入点的平均角度或者Parzen密度来确定位置估计 可访问接入点分发。

公开(公告)号：US20220247807A1

公开(公告)日：2022-08-04

申请号：US17676589

申请日：2022-02-21

Applicant: QUALCOMM Incorporated

Inventor： Michael George LUBY ,  Mark WATSON ,  Lorenzo VICISANO ,  Payam PAKZAD ,  Bin WANG ,  Thomas STOCKHAMMER ,  Ying CHEN

IPC: H04L65/60 ,  H04N21/231 ,  H04N21/234 ,  H04N21/2343 ,  H04N21/235 ,  H04N21/258 ,  H04N21/2662 ,  H04N21/435 ,  H04N21/44 ,  H04N21/4402 ,  H04N21/442 ,  H04N21/84 ,  H04N21/845 ,  H04L65/612 ,  H04L67/02

Abstract: A block-request streaming system provides for low-latency streaming of a media presentation. A plurality of media segments are generated according to an encoding protocol. Each media segment includes a random access point. A plurality of media fragments are encoded according to the same protocol. The media segments are aggregated from a plurality of media fragments.

公开(公告)号：US20180249284A1

公开(公告)日：2018-08-30

申请号：US15962884

申请日：2018-04-25

Applicant: QUALCOMM Incorporated

Inventor： Yin CHEN ,  Saumitra Mohan DAS ,  Payam PAKZAD

IPC: H04W4/02 ,  G01S1/06

CPC classification number: H04W4/02 ,  G01S1/06 ,  H04W4/043 ,  H04W4/33

Abstract: Methods, systems, computer-readable media, and apparatuses for determining a position indicator are presented. In some embodiments, position data indicating a position of a mobile device is obtained. A position indicator is determined based on at least one region of a map. The position of the mobile device is located within the at least one region. The position indicator indicates a map-feature-dependent region of the map. The position indicator is provided.

公开(公告)号：US20170013590A1

公开(公告)日：2017-01-12

申请号：US14795715

申请日：2015-07-09

Applicant: QUALCOMM Incorporated

Inventor： Nima NOORSHAMS ,  Payam PAKZAD

IPC: H04W64/00 ,  H04W4/00 ,  H04W52/02

CPC classification number: H04W64/006 ,  H04W4/029 ,  H04W4/80 ,  H04W52/0254 ,  H04W64/00 ,  H04W84/12 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/26

Abstract: Aspects of the disclosure are related to a method for adjusting a wireless signal scanning rate based on a pedestrian dead-reckoning (PDR) reliability level estimate. An example method adjusting a wireless signal scanning rate based on a pedestrian dead-reckoning (PDR) reliability level estimate comprises estimating a PDR reliability level, determining a wireless signal scanning rate based at least in part on the estimated PDR reliability level, wherein wireless signal scanning is performed to obtain position fixes, and performing the wireless signal scanning at the determined wireless signal scanning rate.

Abstract translation: 本公开的方面涉及基于行人推算（PDR）可靠性水平估计来调整无线信号扫描速率的方法。 基于步行推算（PDR）可靠性水平估计来调整无线信号扫描速率的示例性方法包括估计PDR可靠性水平，至少部分地基于所估计的PDR可靠性水平来确定无线信号扫描速率，其中无线信号 执行扫描以获得位置定位，并且以所确定的无线信号扫描速率执行无线信号扫描。

公开(公告)号：US20150226573A1

公开(公告)日：2015-08-13

申请号：US14177951

申请日：2014-02-11

Applicant: QUALCOMM Incorporated

Inventor： Sameera PODURI ,  Payam PAKZAD ,  Yin CHEN

IPC: G01C22/00

CPC classification number: G01C22/006 ,  G01C21/14

Abstract: An estimated position of a pedestrian is obtained by detecting, by a movement sensor on the pedestrian, whether the pedestrian is moving, propagating particles based on a predictive pedestrian movement model upon detecting that the pedestrian is moving, and updating, by a wireless network, the position of the pedestrian upon failure by the movement sensor to detect that the pedestrian is moving. The movement sensor may be a pedometer. The wireless network may be a local wireless network such as a Wi-Fi network.

Abstract translation: 通过由行人的移动传感器检测步行者是否正在移动，通过在检测到行人正在移动的情况下，基于预测性的行人运动模型来传播粒子，并且通过无线网络来更新步行者的估计位置， 行人因运动传感器发生故障而检测行人正在移动时的位置。 运动传感器可以是计步器。 无线网络可以是诸如Wi-Fi网络的本地无线网络。

公开(公告)号：US20140129175A1

公开(公告)日：2014-05-08

申请号：US13670306

申请日：2012-11-06

Applicant: QUALCOMM INCORPORATED

Inventor： Sameera PODURI ,  Payam PAKZAD ,  Vinay SRIDHARA ,  Saumitra Mohan DAS ,  Ayman Fawzy NAGUIB

IPC: G01P13/00

CPC classification number: H04W4/029 ,  G01C21/005 ,  G01C21/165 ,  G01C21/206 ,  G01C22/006 ,  G01S5/02 ,  G01S5/0257 ,  G01S19/49 ,  H04W4/026 ,  H04W64/006

Abstract: Techniques are provided for adaptively sampling orientation sensors in positioning systems based on location (e.g., map) data. Embodiments can enable a device to use location, direction, and/or location information to anticipate an expected change in motion. The embodiments can then identify and prioritize a number of sampling strategies to alter sampling rates of orientation sensors, and implement at least one strategy, based on priority.

Abstract translation: 提供了用于基于位置（例如，地图）数据在定位系统中自适应地采样取向传感器的技术。 实施例可以使设备能够使用位置，方向和/或位置信息来预期运动的预期变化。 然后，实施例可以识别并优先考虑多个取样策略来改变取向传感器的采样率，并且基于优先级实现至少一个策略。

公开(公告)号：US20210211483A1

公开(公告)日：2021-07-08

申请号：US17204802

申请日：2021-03-17

Applicant: QUALCOMM Incorporated

Inventor： Michael LUBY ,  Mark WATSON ,  Lorenzo VICISANO ,  Payam PAKZAD ,  Bin WANG

IPC: H04L29/06 ,  H04N21/231 ,  H04N21/234 ,  H04N21/2343 ,  H04N21/235 ,  H04N21/258 ,  H04N21/2662 ,  H04N21/435 ,  H04N21/44 ,  H04N21/4402 ,  H04N21/442 ,  H04N21/84 ,  H04N21/845 ,  H04N21/24

Abstract: A block-request streaming system provides for improvements in the user experience and bandwidth efficiency of such systems, typically using an ingestion system that generates data in a form to be served by a conventional file server (HTTP, FTP, or the like), wherein the ingestion system intakes content and prepares it as files or data elements to be served by the file server. A client device can be adapted to take advantage of the ingestion process. The client device might be configured to optimize use of resources, given the information available to it from the ingestion system. This may include configurations to determine the sequence, timing and construction of block requests based on monitoring buffer size and rate of change of buffer size, use of variable sized requests, mapping of block requests to underlying transport connections, flexible pipelining of requests, and/or use of whole file requests based on statistical considerations.

公开(公告)号：US20140180621A1

公开(公告)日：2014-06-26

申请号：US14044775

申请日：2013-10-02

Applicant: QUALCOMM Incorporated

Inventor： Sameera PODURI ,  Disha AHUJA ,  Victor KULIK ,  Payam PAKZAD ,  Ravi PALANKI

IPC: G01P21/00

Abstract: Step detection accuracy in mobile devices is increased by determining whether swinging is taking place. According to the invention, swinging can be detected using threshold detection, Eigen analysis, hybrid frequency analysis, and/or gyroscope-based analysis, for example. The determination that swinging is (or may be) occurring can impact how the mobile device reports detected steps for step detection. A count of missteps and/or a level of certainty, based on swing detection, can be provided with a step count.

Abstract translation: 通过确定是否发生摆动来增加移动设备中的步进检测精度。 根据本发明，例如，可以使用阈值检测，特征分析，混合频率分析和/或基于陀螺仪的分析来检测摆动。 摆动（或可能）发生的确定可能会影响移动设备如何报告检测到的步骤检测步骤。 基于摆动检测的错误计数和/或一定程度的确定性可以提供步数。

公开(公告)号：US20150350832A1

公开(公告)日：2015-12-03

申请号：US14292021

申请日：2014-05-30

Applicant: QUALCOMM Incorporated

Inventor： Yin CHEN ,  Sameera PODURI ,  Payam PAKZAD

IPC: H04W4/02 ,  H04W4/04

CPC classification number: H04W4/023 ,  H04W4/029

Abstract: The position of a mobile device in a wireless network is refined by obtaining statistical samples of particles representing an initial estimated position of the device, obtaining one or more parameters of received signals from a set of one or more access points in the network, locking the set of one or more access points without using one or more additional access points to estimate the position, resampling the particles to obtain a second estimation of the position after locking the first set of one or more access points, and obtaining a refined estimated position based on a comparison of the first and second estimations of the position.

Abstract translation: 移动设备在无线网络中的位置通过获得表示设备的初始估计位置的粒子的统计样本来获得，从网络中的一个或多个接入点的集合获得接收信号的一个或多个参数，锁定 一组一个或多个接入点，而不使用一个或多个附加接入点来估计位置，重新采样粒子以获得在锁定第一组一个或多个接入点之后的位置的第二估计，并获得精确估计位置 比较位置的第一和第二估计。

公开(公告)号：US20140114561A1

公开(公告)日：2014-04-24

申请号：US13657428

申请日：2012-10-22

Applicant: QUALCOMM INCORPORATED

Inventor： Payam PAKZAD ,  Sameera PODURI

IPC: G01C21/14

CPC classification number: G01C21/14 ,  G01C21/206 ,  G01C22/006 ,  H04W4/029

Abstract: Various methods, apparatuses and/or articles of manufacture are provided which may be implemented to estimate a trajectory of a mobile device within an indoor environment. In some embodiments, the trajectory may be estimated without the use of any signal-based positioning information. For example, a mobile device may estimate such a trajectory based, at least in part, on one or more sensor measurements obtained at the mobile device, and further affect the estimated trajectory based, at least in part, on one or more objects identified in an electronic map of the indoor environment.

Abstract translation: 提供了各种方法，装置和/或制造品，其可以被实现为估计室内环境中的移动设备的轨迹。 在一些实施例中，可以在不使用任何基于信号的定位信息的情况下估计轨迹。 例如，移动设备可以至少部分地基于在移动设备处获得的一个或多个传感器测量来估计这样的轨迹，并且至少部分地基于一个或多个在 电子地图的室内环境。