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    ROBUST STEP DETECTION USING LOW COST MEMS ACCELEROMETER IN MOBILE APPLICATIONS, AND PROCESSING METHODS, APPARATUS AND SYSTEMS
    4.
    发明申请
    ROBUST STEP DETECTION USING LOW COST MEMS ACCELEROMETER IN MOBILE APPLICATIONS, AND PROCESSING METHODS, APPARATUS AND SYSTEMS 审中-公开
    在移动应用中使用低成本MEMS加速度计的鲁棒步进检测和处理方法，装置和系统

    公开(公告)号：US20130090881A1

    公开(公告)日：2013-04-11

    申请号：US13302329

    申请日：2011-11-22

    申请人： Jayawardan Janardhanan ,  Sandeep Rao ,  Goutam Dutta

    发明人： Jayawardan Janardhanan ,  Sandeep Rao ,  Goutam Dutta

    IPC分类号： G06F19/00 ,  G01P21/00

    CPC分类号： G01C22/006 ,  G01C21/16 ,  G01C21/165 ,  G01C21/18 ,  G01C21/206 ,  G01F15/00 ,  G01P15/00 ,  G06F1/163

    摘要： A system (10) for pedestrian use includes an accelerometer (110) having multiple electronic sensors; an electronic circuit (100) operable to generate a signal stream representing magnitude of overall acceleration sensed by the accelerometer (110), and to electronically correlate a sliding window (520) of the signal stream with itself to produce peaks at least some of which represent walking steps, and further operable to electronically execute a periodicity check (540) to compare different step periods for similarity, and if sufficiently similar then to update (560) a portion of the circuit substantially representing a walking-step count; and an electronic display (190) responsive to the electronic circuit (100) to display information at least in part based on the step count. Other systems, electronic circuits and processes are disclosed.

    摘要翻译： 一种用于行人使用的系统（10）包括具有多个电子传感器的加速度计（110） 电子电路（100），其可操作以产生表示由所述加速度计（110）感测的总加速度的大小的信号流，并且将所述信号流的滑动窗口（520）与其自身电子相关，以产生峰值，其中至少一些代表 并且进一步可操作以电子地执行周期性检查（540）以比较用于相似性的不同步骤周期，并且如果足够类似以更新（560）基本上表示步行步数的电路的一部分; 以及响应于所述电子电路（100）至少部分地基于所述步数显示信息的电子显示器（190）。 公开了其他系统，电子电路和过程。

    CROSS COUPLED POSITIONING ENGINE (PE) ARCHITECTURE FOR SENSOR INTEGRATION IN GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS)
    5.
    发明申请
    CROSS COUPLED POSITIONING ENGINE (PE) ARCHITECTURE FOR SENSOR INTEGRATION IN GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS) 有权
    用于全球导航卫星系统（GNSS）传感器整合的交叉耦合定位发动机（PE）

    公开(公告)号：US20110254729A1

    公开(公告)日：2011-10-20

    申请号：US13163199

    申请日：2011-06-17

    申请人： Goutam Dutta ,  Tarkesh Pande ,  Sandeep Rao ,  Deric W. Waters

    发明人： Goutam Dutta ,  Tarkesh Pande ,  Sandeep Rao ,  Deric W. Waters

    IPC分类号： G01S19/47

    CPC分类号： G01S19/47 ,  G01C21/165 ,  G01S19/20 ,  G01S19/49 ,  G01S19/52

    摘要： Embodiments of the disclosure provide a cross coupled position engine architecture for sensor integration in a Global Navigation Satellite System. In one embodiment, a data processing engine for processing inertial sensor data within a positioning system receiver is disclosed. The data processing engine includes a first input for receiving the sensor data, and a second input for receiving a positioning data. The data processing system also includes a memory and a processor. The processor of the data processing system is coupled to the memory and to the first and second input. The processor of the data processing system is configured to calculate a net acceleration profile data from the inertial sensor data and from the positioning data. The net acceleration profile data calculated by the processor of the data processing system is used for the Global Positioning System (GPS) receiver to subsequently calculate a position and a velocity data.

    摘要翻译： 本公开的实施例提供了用于全球导航卫星系统中的传感器集成的交叉耦合位置引擎结构。 在一个实施例中，公开了一种用于在定位系统接收器内处理惯性传感器数据的数据处理引擎。 数据处理引擎包括用于接收传感器数据的第一输入端和用于接收定位数据的第二输入端。 数据处理系统还包括存储器和处理器。 数据处理系统的处理器耦合到存储器和第一和第二输入端。 数据处理系统的处理器被配置为从惯性传感器数据和定位数据计算净加速度曲线数据。 由数据处理系统的处理器计算的净加速度曲线数据用于全球定位系统（GPS）接收机，以随后计算位置和速度数据。

    Positioning system receiver sensor system coupled with measurement data output
    6.
    发明授权
    Positioning system receiver sensor system coupled with measurement data output 有权
    定位系统接收机传感器系统与测量数据输出相结合

    公开(公告)号：US09030356B2

    公开(公告)日：2015-05-12

    申请号：US13163199

    申请日：2011-06-17

    申请人： Goutam Dutta ,  Tarkesh Pande ,  Sandeep Rao ,  Deric W. Waters

    发明人： Goutam Dutta ,  Tarkesh Pande ,  Sandeep Rao ,  Deric W. Waters

    IPC分类号： G01S19/47 ,  G01C21/16

    CPC分类号： G01S19/47 ,  G01C21/165 ,  G01S19/20 ,  G01S19/49 ,  G01S19/52

    摘要： Embodiments of the disclosure provide a cross coupled position engine architecture for sensor integration in a Global Navigation Satellite System. In one embodiment, a data processing engine for processing inertial sensor data within a positioning system receiver is disclosed. The data processing engine includes a first input for receiving the sensor data, and a second input for receiving a positioning data. The data processing system also includes a memory and a processor. The processor of the data processing system is coupled to the memory and to the first and second input. The processor of the data processing system is configured to calculate a net acceleration profile data from the inertial sensor data and from the positioning data. The net acceleration profile data calculated by the processor of the data processing system is used for the Global Positioning System (GPS) receiver to subsequently calculate a position and a velocity data.

    摘要翻译： 本公开的实施例提供了用于全球导航卫星系统中的传感器集成的交叉耦合位置引擎结构。 在一个实施例中，公开了一种用于在定位系统接收器内处理惯性传感器数据的数据处理引擎。 数据处理引擎包括用于接收传感器数据的第一输入端和用于接收定位数据的第二输入端。 数据处理系统还包括存储器和处理器。 数据处理系统的处理器耦合到存储器和第一和第二输入端。 数据处理系统的处理器被配置为从惯性传感器数据和定位数据计算净加速度曲线数据。 由数据处理系统的处理器计算的净加速度曲线数据用于全球定位系统（GPS）接收机，以随后计算位置和速度数据。

    POWER AND PERFORMANCE OPTIMIZATION IN NAVIGATION SYSTEMS
    7.
    发明申请
    POWER AND PERFORMANCE OPTIMIZATION IN NAVIGATION SYSTEMS 审中-公开
    导航系统的功率和性能优化

    公开(公告)号：US20130158857A1

    公开(公告)日：2013-06-20

    申请号：US13330434

    申请日：2011-12-19

    申请人： Goutam Dutta ,  Sandeep Rao

    发明人： Goutam Dutta ,  Sandeep Rao

    IPC分类号： G01C21/00

    CPC分类号： G01C21/26 ,  G01S19/34 ,  G01S19/47 ,  G01S19/48

    摘要： Methods and systems for power and performance optimization are disclosed. In an embodiment, a method of power and performance optimization may include or comprise determining an environment condition of at least one of a current location and one or more intermediate locations along a route of a navigation system based on an environment information. The method also includes or comprises configuring one or more features associated with power and performance optimization in a navigation receiver associated with the navigation system based on the determined environment condition.

    摘要翻译： 公开了用于功率和性能优化的方法和系统。 在一个实施例中，功率和性能优化的方法可以包括或包括基于环境信息确定沿着导航系统的路线的当前位置和一个或多个中间位置中的至少一个的环境状况。 该方法还包括或基于所确定的环境条件来配置与导航系统相关联的导航接收机中与功率和性能优化相关联的一个或多个特征。

    Detecting lack of movement to aid GNSS receivers
    8.
    发明授权
    Detecting lack of movement to aid GNSS receivers 有权
    检测缺乏运动来援助GNSS接收机

    公开(公告)号：US08212720B2

    公开(公告)日：2012-07-03

    申请号：US12565927

    申请日：2009-09-24

    申请人： Deric W. Waters ,  June Chul Roh ,  Sandeep Rao

    发明人： Deric W. Waters ,  June Chul Roh ,  Sandeep Rao

    IPC分类号： G01S19/05 ,  G01S19/25 ,  G01S19/26

    CPC分类号： G01S19/26 ,  G01S19/05 ,  G01S19/235 ,  G01S19/246 ,  G01S19/254

    摘要： Embodiments of the invention provide a method of detecting movement to aid GNSS receivers. By detecting when the user is stationary, the Doppler frequency estimation can be corrected or the SNR can be boosted more both of which lead to improved performance. The embodiments allow a GNSS receiver to process signals in when the signal level would otherwise be too low—for example indoors. The embodiments can improve performance when one or more satellites are temporarily blocked but one or more satellites are still being tracked.

    摘要翻译： 本发明的实施例提供一种检测移动以辅助GNSS接收机的方法。 通过检测用户何时静止，可以校正多普勒频率估计或更多地提高SNR，这两者都可以提高性能。 这些实施例允许GNSS接收机在信号电平否则将太低时处理信号，例如室内。 当一个或多个卫星被暂时阻塞但仍在跟踪一个或多个卫星时，这些实施例可以提高性能。

    Reacquiring Satellite Signals Quickly
    9.
    发明申请
    Reacquiring Satellite Signals Quickly 有权
    重新获取卫星信号

    公开(公告)号：US20110316740A1

    公开(公告)日：2011-12-29

    申请号：US13227108

    申请日：2011-09-07

    申请人： Deric W. Waters ,  June Chul Roh ,  Sandeep Rao

    发明人： Deric W. Waters ,  June Chul Roh ,  Sandeep Rao

    IPC分类号： G01S19/24

    CPC分类号： G01S19/26 ,  G01S19/05 ,  G01S19/235 ,  G01S19/246 ,  G01S19/254

    摘要： Embodiments of the invention provide a method of reacquiring satellite signals quickly. A pseudorange of at least one satellite is estimated. A user's position is also estimated. Then a signal from at one or more satellites may be received. By detecting when the user is stationary, the Doppler frequency estimation can be corrected or the SNR can be boosted more both of which lead to improved performance. The embodiments allow a GNSS receiver to process signals in when the signal level would otherwise be too low—for example indoors. The embodiments can improve performance when one or more satellites are temporarily blocked but one or more satellites are still being tracked.

    摘要翻译： 本发明的实施例提供了一种快速重新获取卫星信号的方法。 估计至少一颗卫星的伪距。 也估计用户的位置。 然后可以接收来自一个或多个卫星的信号。 通过检测用户何时静止，可以校正多普勒频率估计或更多地提高SNR，这两者都可以提高性能。 这些实施例允许GNSS接收机在信号电平否则将太低时处理信号，例如室内。 当一个或多个卫星被暂时阻塞但仍在跟踪一个或多个卫星时，这些实施例可以提高性能。

    Authentication via monitoring
    10.
    发明授权
    Authentication via monitoring 有权
    通过监控认证

    公开(公告)号：US08806572B2

    公开(公告)日：2014-08-12

    申请号：US12475486

    申请日：2009-05-30

    申请人： David A. McGrew ,  Sandeep Rao

    发明人： David A. McGrew ,  Sandeep Rao

    IPC分类号： H04L29/06

    CPC分类号： H04L63/1408 ,  H04L63/08

    摘要： Systems, methods, and other embodiments associated with authentication via monitoring are described. One example method includes detecting a data flow in which indicia of identity (DFWIOI) travel between a first endpoint and a second endpoint. The DFWIOI may be partially encrypted. The example method may also include collecting an identity data associated with the DFWIOI from the DFWIOI, the first endpoint, the second endpoint, and so on. The example method may also include making an authentication policy decision regarding the DFWIOI based, at least in part, on the identity data. The example method may also include controlling a networking device associated with the DFWIOI based, at least in part, on the authentication policy decision.

    摘要翻译： 描述了通过监视与认证相关联的系统，方法和其他实施例。 一个示例性方法包括检测在第一端点和第二端点之间的身份标识（DFWIOI）行进的数据流。 DFWIOI可能被部分加密。 示例性方法还可以包括从DFWIOI，第一端点，第二端点等收集与DFWIOI相关联的身份数据。 该示例方法还可以包括至少部分地基于身份数据来做出关于DFWIOI的认证策略决定。 该示例方法还可以包括至少部分地基于认证策略决定来控制与DFWIOI相关联的联网设备。