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    Performance of a Navigation Receiver Operating in a Power-Save Mode with the Aid of Sensors
    3.
    发明申请
    Performance of a Navigation Receiver Operating in a Power-Save Mode with the Aid of Sensors 审中-公开
    使用传感器辅助工作在省电模式下的导航接收器的性能

    公开(公告)号：US20110071759A1

    公开(公告)日：2011-03-24

    申请号：US12887458

    申请日：2010-09-21

    申请人： Tarkesh Pande ,  Goutam Dutta ,  Deric Waters

    发明人： Tarkesh Pande ,  Goutam Dutta ,  Deric Waters

    IPC分类号： G01C21/00

    CPC分类号： G01C21/165 ,  G01S19/34

    摘要： A system and method for controlling a navigation receiver is disclosed. A current position is determined using the navigation receiver and then the navigation receiver is placed in a power-save mode. The current position is updated using information from position sensors. The navigation receiver is temporarily placed in an active mode at intervals to determine an intermediate position. The current position is also updated using the intermediate position. The navigation receiver may be a GNSS receiver, a cellular receiver, a WiFi receiver, or another position-fixing device. The position sensors may be accelerometers, gyroscopes, electronic compasses or mapping data. A power-save controller controls the power-save or active mode of the navigation receiver. A sensor conditioning circuit pre-processes the data from the position sensors before providing the data to the power-save controller. During the power-save mode, an RF subsystem and/or a baseband subsystem of the navigation receiver may be turned off.

    摘要翻译： 公开了一种用于控制导航接收机的系统和方法。 使用导航接收器确定当前位置，然后将导航接收机置于省​​电模式。 使用位置传感器的信息更新当前位置。 导航接收器被间隔地暂时置于活动模式以确定中间位置。 当前位置也使用中间位置更新。 导航接收器可以是GNSS接收器，蜂窝接收器，WiFi接收器或另一定位装置。 位置传感器可以是加速度计，陀螺仪，电子罗盘或映射数据。 节电控制器控制导航接收器的省电或主动模式。 传感器调节电路在将数据提供给节电控制器之前对位置传感器的数据进行预处理。 在省电模式期间，可以关闭导航接收器的RF子系统和/或基带子系统。

    CROSS COUPLED POSITIONING ENGINE (PE) ARCHITECTURE FOR SENSOR INTEGRATION IN GLOBAL NAVIGATION SATELLITE SYSTEM (GNSS)
    4.
    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
    5.
    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。

    Attitude estimation for pedestrian navigation using low cost mems accelerometer in mobile applications, and processing methods, apparatus and systems
    7.
    发明授权
    Attitude estimation for pedestrian navigation using low cost mems accelerometer in mobile applications, and processing methods, apparatus and systems 有权
    在移动应用中使用低成本mems加速度计的行人导航姿态估计，以及处理方法，装置和系统

    公开(公告)号：US08694251B2

    公开(公告)日：2014-04-08

    申请号：US13301913

    申请日：2011-11-22

    申请人： Jayawardan Janardhanan ,  Goutam Dutta ,  Varun Tripuraneni

    发明人： Jayawardan Janardhanan ,  Goutam Dutta ,  Varun Tripuraneni

    IPC分类号： G01C21/10

    CPC分类号： G01C21/16 ,  G01C21/165 ,  G01C21/20 ,  G01C22/006

    摘要： A user-heading determining system (10) for pedestrian use includes a multiple-axis accelerometer (110) having acceleration sensors; a device-heading sensor circuit (115) physically situated in a fixed relationship to the accelerometer (110); an electronic circuit (100) operable to generate signals representing components of acceleration sensed by the accelerometer (110) sensors, and to electronically process at least some part of the signals to produce an estimation of attitude of a user motion with respect to the accelerometer, and further to combine the attitude estimation (750, α) with a device heading estimation (770, ψ) responsive to the device-heading sensor circuit, to produce a user heading estimation (780); and an electronic display (190) responsive to the electronic circuit (100) to display information at least in part based on the user heading estimation. Other systems, circuits and processes are also disclosed.

    摘要翻译： 用于行人使用的用户航向确定系统（10）包括具有加速度传感器的多轴加速度计（110） 物理地位于与所述加速度计（110）固定关系的设备航向传感器电路（115）; 电子电路（100），其可操作以产生表示由所述加速度计（110）传感器感测到的加速度的分量的信号，并且电子处理所述信号的至少一部分以产生相对于所述加速度计的用户运动姿态的估计， 并且进一步将所述姿态估计（750，α）与响应于所述设备航向传感器电路的设备航向估计（770，ψ）组​​合以产生用户航向估计（780）; 以及响应于所述电子电路（100）至少部分地基于所述用户标题估计来显示信息的电子显示器（190）。 还公开了其它系统，电路和过程。

    Method and system for determining noise components of an analog-to-digital converter
    8.
    发明申请
    Method and system for determining noise components of an analog-to-digital converter 有权

    公开(公告)号：US20070032971A1

    公开(公告)日：2007-02-08

    申请号：US11185131

    申请日：2005-07-20

    申请人： Goutam Dutta ,  Vineet Mishra

    发明人： Goutam Dutta ,  Vineet Mishra

    IPC分类号： G01R25/00 ,  G01R27/00

    CPC分类号： G01R29/26 ,  G01R31/31709

    摘要： A method and system is provided for determining noise components of an analog-to-digital converter. In one aspect of the invention, a method comprises providing an input signal to a signal input and a clock input of the ADC, outputting a plurality of samples at a sampled phase on the input signal for a plurality of sampled phases, and determining a jitter noise factor value, a reference noise factor value, and a total noise spectrum based on the plurality of samples for each of the plurality of sampled phases. A least means square algorithm is performed on the plurality of jitter noise factor values, reference noise factor values, and total noise spectra to estimate at least one of a jitter noise component and a reference noise component.