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18 条记录 (耗时 0.018 秒)

    Global Positioning System Receiver Timeline Management
    2.
    发明申请
    Global Positioning System Receiver Timeline Management 有权
    全球定位系统接收机时间管理

    公开(公告)号：US20090219198A1

    公开(公告)日：2009-09-03

    申请号：US12091798

    申请日：2006-10-28

    申请人： Gengsheng Zhang ,  Qingwen Zhang ,  Paul Underbrink

    发明人： Gengsheng Zhang ,  Qingwen Zhang ,  Paul Underbrink

    IPC分类号： G01S1/00

    CPC分类号： G01S19/05 ,  G01S19/37

    摘要： Satellite positioning system (SATPS) receiver that has a plurality of modes and channels, where a timeline module configures the channels based on the mode of operation of the SATPS receiver and reconfigures the channels if the mode of operation of the SATPS changes.

    摘要翻译： 具有多个模式和频道的卫星定位系统（SATPS）接收机，其中时间线模块基于SATPS接收机的操作模式配置信道，并且如果SATPS的操作模式改变则重新配置信道。

    GLOBAL POSITIONING SYSTEM RECEIVER TIMELINE MANAGEMENT
    3.
    发明申请
    GLOBAL POSITIONING SYSTEM RECEIVER TIMELINE MANAGEMENT 有权
    全球定位系统接收时间管理

    公开(公告)号：US20120188127A1

    公开(公告)日：2012-07-26

    申请号：US13435687

    申请日：2012-03-30

    申请人： Gengsheng Zhang ,  Qingwen Zhang ,  Paul Underbrink

    发明人： Gengsheng Zhang ,  Qingwen Zhang ,  Paul Underbrink

    IPC分类号： G01S19/37

    CPC分类号： G01S19/05 ,  G01S19/37

    摘要： Satellite positioning system (SATPS) receiver that has a plurality of modes and channels, where a timeline module configures the channels based on the mode of operation of the SATPS receiver and reconfigures the channels if the mode of operation of the SATPS changes.

    摘要翻译： 具有多个模式和频道的卫星定位系统（SATPS）接收机，其中时间线模块基于SATPS接收机的操作模式配置信道，并且如果SATPS的操作模式改变则重新配置信道。

    Edge-aligned ratio counter
    5.
    发明申请
    Edge-aligned ratio counter 有权
    边对齐比例计数器

    公开(公告)号：US20060047459A1

    公开(公告)日：2006-03-02

    申请号：US11014684

    申请日：2004-12-16

    申请人： Paul Underbrink ,  Steven Gronemeyer

    发明人： Paul Underbrink ,  Steven Gronemeyer

    IPC分类号： G06F19/00

    CPC分类号： G01S19/23

    摘要： An Edge-Aligned Ratio Counter (EARC) that includes at least one processor coupled to at least one counter circuit is provided for determining a ratio between two clock signals by receiving a first and a second value in response to a first clock signal and generating a control signal under control of the loaded value by counting the pulses of the first clock signal and a second clock signal and captures the count of each clock signal in response to the control signal and determining a ratio between a frequency of the first clock signal and a frequency of the second clock signal using the differences of the captured counts taken at two different occurrences of the control signal.

    摘要翻译： 提供了包括耦合到至少一个计数器电路的至少一个处理器的边缘对准比率计数器（EARC），用于通过响应于第一时钟信号接收第一和第二值来确定两个时钟信号之间的比率，并产生 通过对第一时钟信号的脉冲和第二时钟信号进行计数来控制负载值的控制信号，并且响应于控制信号捕获每个时钟信号的计数，并且确定第一时钟信号和第一时钟信号的频率之间的比率 使用在两个不同出现的控制信号时采集的捕获计数的差异来确定第二时钟信号的频率。

    SYSTEM AND METHOD FOR USE OF SIEVING IN GPS SIGNAL ACQUISITION
    6.
    发明申请
    SYSTEM AND METHOD FOR USE OF SIEVING IN GPS SIGNAL ACQUISITION 失效
    使用GPS信号获取的系统和方法

    公开(公告)号：US20110021171A1

    公开(公告)日：2011-01-27

    申请号：US12508278

    申请日：2009-07-23

    申请人： Mark Sturza ,  Paul Underbrink

    发明人： Mark Sturza ,  Paul Underbrink

    IPC分类号： H04B1/16

    CPC分类号： G01S19/29 ,  G01S19/246 ,  G01S19/30

    摘要： Systems and methods are disclosed herein to use sieving to reduce the number of hypotheses and the length of time for acquisition of GPS satellite signals. In sieving, hypothesis testing is performed after a short non-coherent integration duration on a first set of hypotheses. At the end of the non-coherent integration time, multiple candidate hypotheses having high likelihood of signal detection are identified. Further non-coherent integration of each candidate hypothesis is performed by using a tracking loop to remove Doppler frequency and code phase variations on the signal. In parallel, additional hypotheses testing is performed on a second set of hypotheses. At the end of the next non-coherent integration time, the best candidate hypotheses among the candidate hypotheses sieved from the first set of hypotheses running in the tracking loops and the candidate hypotheses from the second set of hypotheses are identified. This new set of candidate hypotheses replaces the previous candidate hypotheses and is tracked by the tracking loops. This process of short non-coherent integrations followed by track is repeated until a candidate hypothesis has a non-coherent integration that exceeds a detection threshold.

    摘要翻译： 本文公开的系统和方法是使用筛选来减少用于获取GPS卫星信号的假设数量和时间长度。 在筛选中，假设检验在第一组假设的短非相干积分持续时间之后进行。 在非相干积分时间结束时，识别出具有高信号检测可能性的多个候选假设。 通过使用跟踪环来去除信号上的多普勒频率和码相位变化来执行每个候选假设的进一步非相干积分。 同时，对第二组假设进行额外的假设测试。 在下一个不一致的整合时间结束时，从追踪循环中运行的第一组假设和第二组假设的候选假设中筛选出的候选假设中的最佳候选假设被识别。 这组新的候选假设取代了先前的候选假设，并被跟踪循环跟踪。 重复跟踪轨道的短非相干积分的这个过程，直到候选假设具有超过检测阈值的非相干积分。

    System and method for use of sieving in GPS signal acquisition
    9.
    发明授权
    System and method for use of sieving in GPS signal acquisition 失效
    在GPS信号采集中使用筛分的系统和方法

    公开(公告)号：US08462831B2

    公开(公告)日：2013-06-11

    申请号：US12508278

    申请日：2009-07-23

    申请人： Mark Sturza ,  Paul Underbrink

    发明人： Mark Sturza ,  Paul Underbrink

    IPC分类号： H04B1/00

    CPC分类号： G01S19/29 ,  G01S19/246 ,  G01S19/30

    摘要： Systems and methods are disclosed herein to use sieving to reduce the number of hypotheses and the length of time for acquisition of GPS satellite signals. In sieving, hypothesis testing is performed after a short non-coherent integration duration on a first set of hypotheses. At the end of the non-coherent integration time, multiple candidate hypotheses having high likelihood of signal detection are identified. Further non-coherent integration of each candidate hypothesis is performed by using a tracking loop to remove Doppler frequency and code phase variations on the signal. In parallel, additional hypotheses testing is performed on a second set of hypotheses. At the end of the next non-coherent integration time, the best candidate hypotheses among the candidate hypotheses sieved from the first set of hypotheses running in the tracking loops and the candidate hypotheses from the second set of hypotheses are identified. This new set of candidate hypotheses replaces the previous candidate hypotheses and is tracked by the tracking loops. This process of short non-coherent integrations followed by track is repeated until a candidate hypothesis has a non-coherent integration that exceeds a detection threshold.

    摘要翻译： 本文公开的系统和方法是使用筛选来减少用于获取GPS卫星信号的假设数量和时间长度。 在筛选中，假设检验在第一组假设的短非相干积分持续时间之后进行。 在非相干积分时间结束时，识别出具有高信号检测可能性的多个候选假设。 通过使用跟踪环来去除信号上的多普勒频率和码相位变化来执行每个候选假设的进一步非相干积分。 同时，对第二组假设进行额外的假设测试。 在下一个不一致的整合时间结束时，从追踪循环中运行的第一组假设和第二组假设的候选假设中筛选出的候选假设中的最佳候选假设被识别。 这组新的候选假设取代了先前的候选假设，并被跟踪循环跟踪。 重复跟踪轨道的短非相干积分的这个过程，直到候选假设具有超过检测阈值的非相干积分。

    Aligning a frame pulse of a high frequency timer using a low frequency timer
    10.
    发明申请
    Aligning a frame pulse of a high frequency timer using a low frequency timer 有权
    使用低频定时器对齐高频定时器的帧脉冲

    公开(公告)号：US20070217562A1

    公开(公告)日：2007-09-20

    申请号：US11805073

    申请日：2007-05-21

    申请人： Paul Underbrink ,  Michael Tomlinson ,  Ricke Clark

    发明人： Paul Underbrink ,  Michael Tomlinson ,  Ricke Clark

    IPC分类号： G07C3/00

    CPC分类号： H04W52/029 ,  Y02D70/122 ,  Y02D70/164

    摘要： A low frequency timing circuit is used to reestablish a timing signal in a high-frequency timing circuit after the high frequency timing circuit has lost and regained power. The timing of the low frequency circuit is measured against the timing of the high frequency circuit before the high frequency circuit has lost power. The low frequency circuit then is used to measure time after the high frequency circuit has lost power. Once the high frequency circuit has regained power, its timing signal is reestablished at an appropriate time based on a time measurement obtained from the low frequency circuit.

    摘要翻译： 低频定时电路用于在高频定时电路丢失并恢复供电之后重新建立高频定时电路中的定时信号。 在高频电路断电之前，针对高频电路的定时测量低频电路的定时。 然后，低频电路用于在高频电路断电后测量时间。 一旦高频电路恢复供电，其定时信号就会根据从低频电路获得的时间测量值在适当的时间重新建立。