公开(公告)号：US20110250931A1

公开(公告)日：2011-10-13

申请号：US13078748

申请日：2011-04-01

申请人： Tarkesh Pande ,  Jaiganesh Balakrishnan ,  Deric Waters ,  Goutam Dutta ,  Jayawardan Janardhanan ,  Sthanunathan Ramakrishnan ,  Sandeep Rao ,  Karthik Ramasubramanian

发明人： Tarkesh Pande ,  Jaiganesh Balakrishnan ,  Deric Waters ,  Goutam Dutta ,  Jayawardan Janardhanan ,  Sthanunathan Ramakrishnan ,  Sandeep Rao ,  Karthik Ramasubramanian

IPC分类号： G01C21/00 ,  G01S1/08 ,  H04W88/02 ,  G01S1/02

CPC分类号： G01S19/47 ,  G01C21/165

摘要： A personal navigation device configured to determine heading readings continuously using data from a sensor in the personal navigation device. Heading readings are selected corresponding to a periodic event. A representative heading is determined from the selected heading readings. When a portion of the selected heading readings has a value within a range of the representative heading, a static heading indicator is asserted to indicate the personal navigation device is moving in a static heading. The static heading indicator may be used to smooth an estimated trajectory of the personal navigation device.

摘要翻译： 一种个人导航装置，被配置为使用来自个人导航装置中的传感器的数据连续地确定航向读数。 根据周期性事件选择标题读数。 从所选标题读数确定代表性标题。 当所选航标读数的一部分具有在代表性标题的范围内的值时，断言静态航向指示符以指示个人导航设备正在静态航向中移动。 静态航向指示符可以用于平滑个人导航设备的估计轨迹。

公开(公告)号：US08930136B2

公开(公告)日：2015-01-06

申请号：US13078748

申请日：2011-04-01

申请人： Tarkesh Pande ,  Jaiganesh Balakrishnan ,  Deric Waters ,  Goutam Dutta ,  Jayawardan Janardhanan ,  Sthanunathan Ramakrishnan ,  Sandeep Rao ,  Karthik Ramasubramanian

发明人： Tarkesh Pande ,  Jaiganesh Balakrishnan ,  Deric Waters ,  Goutam Dutta ,  Jayawardan Janardhanan ,  Sthanunathan Ramakrishnan ,  Sandeep Rao ,  Karthik Ramasubramanian

IPC分类号： G01C21/10 ,  G01C22/00 ,  G01S19/47 ,  G01C21/16

CPC分类号： G01S19/47 ,  G01C21/165

摘要： A personal navigation device configured to determine heading readings continuously using data from a sensor in the personal navigation device. Heading readings are selected corresponding to a periodic event. A representative heading is determined from the selected heading readings. When a portion of the selected heading readings has a value within a range of the representative heading, a static heading indicator is asserted to indicate the personal navigation device is moving in a static heading. The static heading indicator may be used to smooth an estimated trajectory of the personal navigation device.

摘要翻译： 一种个人导航装置，被配置为使用来自个人导航装置中的传感器的数据连续地确定航向读数。 根据周期性事件选择标题读数。 从所选标题读数确定代表性标题。 当所选航标读数的一部分具有在代表性标题的范围内的值时，断言静态航向指示符以指示个人导航设备正在静态航向中移动。 静态航向指示符可以用于平滑个人导航设备的估计轨迹。

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。

公开(公告)号：US10330491B2

公开(公告)日：2019-06-25

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 ,  G01C22/00 ,  G01C21/18 ,  G06F1/16 ,  G01C21/16 ,  G01C21/20 ,  G01P15/00 ,  G01F15/00

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.

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。

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。

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。

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。

公开(公告)号：US20120136573A1

公开(公告)日：2012-05-31

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： G01C21/16

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。

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。