HIGH SENSITIVITY SATELLITE POSITIONING SYSTEM RECEIVER
    2.
    发明申请
    HIGH SENSITIVITY SATELLITE POSITIONING SYSTEM RECEIVER 有权
    高灵敏度卫星定位系统接收器

    公开(公告)号:US20140240173A1

    公开(公告)日:2014-08-28

    申请号:US14268676

    申请日:2014-05-02

    CPC classification number: G01S19/246 G01S19/235 G01S19/26

    Abstract: An attenuated satellite positioning system (SPS) signal is acquired using long integration over multiple navigation data bits. To produce a stable internal clock signal to perform the long integration, an external clock signal is received from a highly stable source, such as a wireless communication base station or a nearby femtocell. An internal oscillator is driven at a desired frequency that is aligned with the scaled frequency of the external clock signal to produce the stable internal clock signal. The SPS signal is received and integrated for an extended period using the internal clock signal. Predicted SPS data may be received from an external source and used to perform coherent integration. Alternatively, non-coherent integration may be performed. Additionally, a motion sensor may be used to determine if there is motion relative to the external clock source or to compensate for Doppler errors in the external clock signal due to motion.

    Abstract translation: 使用多个导航数据位的长整合获取衰减的卫星定位系统(SPS)信号。 为了产生稳定的内部时钟信号以执行长整合,从诸如无线通信基站或附近的毫微微小区的高度稳定的源接收外部时钟信号。 内部振荡器以与外部时钟信号的缩放频率对准的期望频率被驱动以产生稳定的内部时钟信号。 使用内部时钟信号接收和积分SPS信号一段延长的时间。 可以从外部源接收预测的SPS数据,并用于执行相干整合。 或者,可以执行非相干积分。 另外,可以使用运动传感器来确定是否存在相对于外部时钟源的运动或者补偿由于运动引起的外部时钟信号中的多普勒误差。

    High sensitivity satellite positioning system receiver
    5.
    发明授权
    High sensitivity satellite positioning system receiver 有权
    高灵敏度卫星定位系统接收机

    公开(公告)号:US09568609B2

    公开(公告)日:2017-02-14

    申请号:US14268676

    申请日:2014-05-02

    CPC classification number: G01S19/246 G01S19/235 G01S19/26

    Abstract: An attenuated satellite positioning system (SPS) signal is acquired using long integration over multiple navigation data bits. To produce a stable internal clock signal to perform the long integration, an external clock signal is received from a highly stable source, such as a wireless communication base station or a nearby femtocell. An internal oscillator is driven at a desired frequency that is aligned with the scaled frequency of the external clock signal to produce the stable internal clock signal. The SPS signal is received and integrated for an extended period using the internal clock signal. Predicted SPS data may be received from an external source and used to perform coherent integration. Alternatively, non-coherent integration may be performed. Additionally, a motion sensor may be used to determine if there is motion relative to the external clock source or to compensate for Doppler errors in the external clock signal due to motion.

    Abstract translation: 使用多个导航数据位的长整合获取衰减的卫星定位系统(SPS)信号。 为了产生稳定的内部时钟信号以执行长整合,从诸如无线通信基站或附近的毫微微小区的高度稳定的源接收外部时钟信号。 内部振荡器以与外部时钟信号的缩放频率对准的期望频率被驱动以产生稳定的内部时钟信号。 使用内部时钟信号接收和积分SPS信号一段延长的时间。 可以从外部源接收预测的SPS数据,并用于执行相干整合。 或者,可以执行非相干积分。 另外,可以使用运动传感器来确定是否存在相对于外部时钟源的运动或者补偿由于运动引起的外部时钟信号中的多普勒误差。

    DEVICE DRIVEN INERTIAL INTERFERENCE COMPENSATION
    6.
    发明申请
    DEVICE DRIVEN INERTIAL INTERFERENCE COMPENSATION 有权
    设备驱动干扰补偿

    公开(公告)号:US20140052401A1

    公开(公告)日:2014-02-20

    申请号:US13836452

    申请日:2013-03-15

    Abstract: Techniques for compensating for inertial and/or magnetic interference in a mobile device are provided. The mobile device can include a vibration motor to vibrate the device, a processor, and can include an inertial sensor and/or a magnetometer. The processor can be configured to actuate the vibration motor to induce vibration of the mobile device, to measure motion of the mobile device with the inertial sensor of the device to produce sensor output data and/or to measure a magnetic field generated by the vibration motor to produce magnetometer output data, and to compensate for the vibration of the inertial sensor induced by the vibration motor to produce compensated sensor output data and/or to compensate for a magnetic field generated by the vibration motor when the vibration motor is actuated to produce compensated magnetometer output data.

    Abstract translation: 提供了用于补偿移动设备中的惯性和/或磁干扰的技术。 移动设备可以包括振动电机以使设备振动,处理器,并且可以包括惯性传感器和/或磁力计。 处理器可以被配置为致动振动马达以引起移动设备的振动,以利用设备的惯性传感器来测量移动设备的运动,以产生传感器输出数据和/或测量由振动马达产生的磁场 以产生磁力计输出数据,并且补偿由振动电动机引起的惯性传感器的振动,以产生补偿的传感器输出数据和/或补偿振动电动机产生的磁场时,振动电机被致动以产生补偿 磁力计输出数据。

    Method and apparatus for wireless network hybrid positioning

    公开(公告)号:US10895648B2

    公开(公告)日:2021-01-19

    申请号:US14505053

    申请日:2014-10-02

    Abstract: Methods and apparatuses for position determination and other operations. In one embodiment of the present invention, a mobile station uses wireless signals from a plurality of wireless networks (e.g., with different air interfaces and/or operated by different service providers) for position determination (e.g., for data communication, for obtaining time and/or frequency information, for range measurement, for sector or altitude estimation). In one embodiment of the present invention, mobile stations are used to harvest statistical data about wireless access points (e.g., the locations of mobile stations that have received signals from the wireless access points, such as from cellular base stations, wireless local area network access points, repeaters for positioning signals, or other wireless communication transmitters) and to derive location information (e.g., position and coverage area of the wireless access points) for the wireless networks from the collected statistical data.

    Device driven inertial interference compensation

    公开(公告)号:US10473690B2

    公开(公告)日:2019-11-12

    申请号:US15850970

    申请日:2017-12-21

    Abstract: Techniques for compensating for inertial and/or magnetic interference in a mobile device are provided. The mobile device can include a vibration motor to vibrate the device, a processor, and can include an inertial sensor and/or a magnetometer. The processor can be configured to actuate the vibration motor to induce vibration of the mobile device, to measure motion of the mobile device with the inertial sensor of the device to produce sensor output data and/or to measure a magnetic field generated by the vibration motor to produce magnetometer output data, and to compensate for the vibration of the inertial sensor induced by the vibration motor to produce compensated sensor output data and/or to compensate for a magnetic field generated by the vibration motor when the vibration motor is actuated to produce compensated magnetometer output data.

    Estimating an initial position and navigation state using vehicle odometry

    公开(公告)号:US09677887B2

    公开(公告)日:2017-06-13

    申请号:US14087743

    申请日:2013-11-22

    CPC classification number: G01C21/00 G01C21/20

    Abstract: The disclosure relates to estimating an initial position and navigation state associated with a vehicle using odometry and/or other data obtained from the vehicle to support dead reckoning at start-up. In particular, a last known position and last known heading at a first odometer value associated with the vehicle may be stored and compared to a current odometer value after linking a mobile device with the vehicle. The last known position and last known heading may be used to estimate the initial position and navigation state associated with the vehicle based on a difference between the compared odometer values. For example, the estimated initial position and/or navigation state may substantially correspond to the last known position and last known heading if the difference between the odometer values indicates no change, or a non-zero difference may define a radius to limit an estimated error associated with the initial position estimate.

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