CAMERA ENABLED HEADSET FOR NAVIGATION
    1.
    发明申请
    CAMERA ENABLED HEADSET FOR NAVIGATION 审中-公开
    摄像机使用头盔进行导航

    公开(公告)号:WO2012094419A1

    公开(公告)日:2012-07-12

    申请号:PCT/US2012/020223

    申请日:2012-01-04

    CPC classification number: H04W64/00 G01C21/3602 H04M1/6058 H04W4/02

    Abstract: A method for providing location determination includes generating digital images using an imaging device in a headset configured to provide hands-free communication with a mobile device where the digital images are indicative of at least a scene in a direction of a user's gaze. The digital images are filtered and transmitted to the mobile device. The mobile device processes the filtered digital images to generate location information associated with the user's gaze. The headset may be a wired or wireless headset.

    Abstract translation: 用于提供位置确定的方法包括使用配置成提供与移动设备的免提通信的耳机中的成像设备来生成数字图像,其中数字图像指示用户目标的方向上的至少场景。 数字图像被过滤并传输到移动设备。 移动设备处理经滤波的数字图像以生成与用户目标相关联的位置信息。 耳机可以是有线或无线耳机。

    SYSTEMS, COMPUTER PROGRAMM PRODUCTS, AND METHODS USING CARRIER PHASES TO DETECT MULTIPATH SIGNALS
    3.
    发明申请
    SYSTEMS, COMPUTER PROGRAMM PRODUCTS, AND METHODS USING CARRIER PHASES TO DETECT MULTIPATH SIGNALS 审中-公开
    系统,计算机程序产品和使用载波相位检测多路信号的方法

    公开(公告)号:WO2010111405A2

    公开(公告)日:2010-09-30

    申请号:PCT/US2010028520

    申请日:2010-03-24

    CPC classification number: H04B1/7117 G01S19/22 H04B1/709

    Abstract: A multipath detector includes an RF module receiving multiple signals, and a correlator module receiving the signals from the RF module. The correlator module correlates the signals to create a composite ACF, and produces samples of the composite autocorrelation function (ACF). The samples are time delayed relative to each other. The multipath detector also includes a carrier phase processor that receives the samples and estimates carrier phases associated with each of the samples. The carrier phase processor employs the estimated carrier phases to determine if one of the signals is subject to a multipath delay.

    Abstract translation: 多路径检测器包括接收多个信号的RF模块和从RF模块接收信号的相关器模块。 相关器模块将信号相关联以产生复合ACF,并且产生复合自相关函数(ACF)的样本。 样品相对于彼此是时间延迟的。 多径检测器还包括载波相位处理器,其接收采样并估计与每个采样相关联的载波相位。 载波相位处理器使用估计的载波相位来确定信号中的一个是否经受多径延迟。

    DEMODULATION OF DATA COLLECTED PRIOR TO BIT EDGE DETECTION
    5.
    发明申请
    DEMODULATION OF DATA COLLECTED PRIOR TO BIT EDGE DETECTION 审中-公开
    在边缘检测前收集的数据的解调

    公开(公告)号:WO2012018861A1

    公开(公告)日:2012-02-09

    申请号:PCT/US2011/046329

    申请日:2011-08-02

    CPC classification number: G01S19/246

    Abstract: An apparatus and method begin creation and storage of correlation sums to be demodulated ("early-collected sums") prior to determination of a location of a bit of data in a wireless signal relative to a local clock. Such early storage allows demodulation of these early-collected sums at a later time, specifically on determination of the data's location in the wireless signal, thereby to yield early-collected data bits. Additionally, after determination of the data bit's location in the wireless signal, additional data bits are further generated in the normal manner, by demodulating the wireless signal, thereby to yield normally-collected data bits. Use of early-collected data bits in generating navigation data reduces the time to start data demodulation, and enables fewer normally-collected data bits to be used to generate navigation data, in several aspects of the invention.

    Abstract translation: 在确定相对于本地时钟的无线信号中的数据位的位置之前,装置和方法开始创建和存储要解调的相关和(“早期采集的和”)。 这种早期存储允许在稍后的时间对这些早期收集的和进行解调,特别是在无线信号中确定数据的位置,从而产生早期收集的数据位。 此外,在确定无线信号中的数据位的位置之后,通过解调无线信号,以常规方式进一步产生附加的数据位,从而产生正常收集的数据位。 在本发明的若干方面中,使用早期收集的数据位来产生导航数据减少了开始数据解调的时间,并且使得能够使用较少的正常收集的数据位来产生导航数据。

    HIGH SENSITIVITY SATELLITE POSITIONING SYSTEM RECEIVER
    6.
    发明申请
    HIGH SENSITIVITY SATELLITE POSITIONING SYSTEM RECEIVER 审中-公开
    高灵敏度卫星定位系统接收器

    公开(公告)号:WO2011143604A2

    公开(公告)日:2011-11-17

    申请号:PCT/US2011/036506

    申请日:2011-05-13

    CPC classification number: G01S19/235 G01S19/246 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: 衰减的卫星定位系统(SPS)信号通过多个导航数据位的长整合获得。 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。

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