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    METHOD AND APPARATUS FOR REDUCING TIME UNCERTAINTY USING RELATIVE CHANGE IN POSITION
    1.
    发明申请
    METHOD AND APPARATUS FOR REDUCING TIME UNCERTAINTY USING RELATIVE CHANGE IN POSITION 审中-公开
    使用相对位置变化来减少时间不确定性的方法和装置

    公开(公告)号：WO2018080700A1

    公开(公告)日：2018-05-03

    申请号：PCT/US2017/053655

    申请日：2017-09-27

    Applicant: QUALCOMM INCORPORATED

    Inventor： KANDASAMY, Prabhu ,  MORRISON, William ,  CHANDRASEKAR, Harisrinivas ,  KUSHWAHA, Manish

    IPC: G01S19/25

    CPC classification number: G01S19/235 ,  G01S19/252 ,  G01S19/256 ,  G01S19/47 ,  G01S19/51

    Abstract: A mobile device is capable of accurately maintaining a global time based on Satellite Position System (SPS) time decoded from an SPS signal using a clock signal acquired from a wireless communication transmitter, such as a base station or access point. The time uncertainty is reduced or minimized by determining a relative change in position of the mobile device with respect to a base position, e.g., a reference position determined from a previous SPS session. The time uncertainty may be determined based on the relative change in position with respect to the base position by transforming it into time units based on the speed of light. The global time may be updated based on the determined time uncertainty, which may be used in a subsequent SPS session to reduce the search window to acquire SPS satellite signals.

    Abstract translation: 基于从SPS信号解码的卫星定位系统（SPS）时间，使用从无线通信发射器（例如基站）获取的时钟信号，移动设备能够准确地维持全球时间，或者 切入点。 通过确定移动设备相对于基准位置的相对位置变化（例如，根据先前的SPS会话确定的基准位置）来减少或最小化时间不确定性。 时间不确定性可以基于通过基于光速将其转换成时间单位的相对于基准位置的相对位置变化来确定。 全球时间可以基于所确定的时间不确定性来更新，所述时间不确定性可以用于随后的SPS会话中以减少搜索窗口以获取SPS卫星信号。

    GPS TIME-AIDING AND FREQUENCY CORRECTION
    2.
    发明申请
    GPS TIME-AIDING AND FREQUENCY CORRECTION 审中-公开
    GPS时间辅助和频率校正

    公开(公告)号：WO2016025287A1

    公开(公告)日：2016-02-18

    申请号：PCT/US2015/043954

    申请日：2015-08-06

    Applicant: GOOGLE TECHNOLOGY HOLDINGS LLC.

    Inventor： MCCUNE, Timothy, M. ,  RUSSELL, Michael

    IPC: G01S19/25 ,  G01S19/05

    CPC classification number: H04W56/004 ,  G01S19/05 ,  G01S19/256 ,  H04B7/26 ,  H04W4/80 ,  H04W76/10

    Abstract: A system and method for time-aiding an autonomous Global Positioning System device over a Bluetooth connection allows for a faster time to fix by allowing faster acquisition of time and ephemeris data. The time-aiding information may be distributed in a one-to-one manner or in a manner that allows for the synchronization of multiple devices.

    Abstract translation: 通过蓝牙连接对自主的全球定位系统设备进行时间辅助的系统和方法允许通过允许更快地获取时间和星历数据来更快地修复时间。 时间辅助信息可以以一对一的方式或以允许多个设备的同步的方式分发。

    TIME SYNCHRONIZATION WITH AMBIENT SOURCES
    3.
    发明申请
    TIME SYNCHRONIZATION WITH AMBIENT SOURCES 审中-公开
    与环境来源的时间同步

    公开(公告)号：WO2011137392A1

    公开(公告)日：2011-11-03

    申请号：PCT/US2011/034668

    申请日：2011-04-29

    Applicant: MAXLINEAR, INC. ,  LING, Curtis ,  ANANDAKUMAR, Anand K.

    Inventor： LING, Curtis ,  ANANDAKUMAR, Anand K.

    IPC: G01S19/47

    CPC classification number: G01S19/05 ,  G01S19/256 ,  G01S19/31 ,  G01S19/34

    Abstract: Systems and methods for extracting synchronization information from ambient signals, such as broadcast television signals, and using the synchronization information as a reference for correcting the local time base so that a GNSS positioning receiver system maintains relative time base accuracy with respect to a GNSS time.

    Abstract translation: 用于从诸如广播电视信号的环境信号提取同步信息的系统和方法，以及使用同步信息作为校正本地时基的参考，以使得GNSS定位接收机系统相对于GNSS时间维持相对的时基精度。

    METHODS AND APPARATUSES USING MIXED NAVIGATION SYSTEM CONSTELLATION SOURCES FOR TIME SETTING
    4.
    发明申请
    METHODS AND APPARATUSES USING MIXED NAVIGATION SYSTEM CONSTELLATION SOURCES FOR TIME SETTING 审中-公开
    用于时间设置的使用混合导航系统星座源的方法和设备

    公开(公告)号：WO2011056879A2

    公开(公告)日：2011-05-12

    申请号：PCT/US2010/055307

    申请日：2010-11-03

    Applicant: QUALCOMM INCORPORATED ,  MORRISON, William, James

    Inventor： MORRISON, William, James

    IPC: G01S19/01 ,  G01S19/33

    CPC classification number: G01S19/256 ,  G01S19/33

    Abstract: Methods and apparatuses are provided that may be implemented in various electronic devices to possibly reduce a first-time-to-fix and/or otherwise increase the performance or efficiency of a device by using portions of system time identifiers from different systems to determine at least one navigation system time.

    Abstract translation: 提供了可以在各种电子设备中实现的方法和装置，以通过使用系统时间的一部分来可能减少首次修复和/或以其他方式提高设备的性能或效率 来自不同系统的标识符来确定至少一个导航系统时间。

    METHOD AND DEVICE FOR UPDATING THE DATE AND TIME OF AN ELECTRONIC SYSTEM, IN PARTICULAR A CELLULAR MOBILE TELEPHONE
    5.
    发明申请
    METHOD AND DEVICE FOR UPDATING THE DATE AND TIME OF AN ELECTRONIC SYSTEM, IN PARTICULAR A CELLULAR MOBILE TELEPHONE 审中-公开
    用于更新电子系统的日期和时间的方法和装置，特别是蜂窝移动电话

    公开(公告)号：WO2010128010A1

    公开(公告)日：2010-11-11

    申请号：PCT/EP2010/055961

    申请日：2010-05-03

    Applicant: ST-ERICSSON SA (ST-ERICSSON LTD) ,  ROSAY, Arnaud

    Inventor： ROSAY, Arnaud

    IPC: H04L29/08 ,  G04G5/00 ,  G04G7/02 ,  H04W8/24 ,  G01S1/00

    CPC classification number: G04R20/04 ,  G01S19/256 ,  G04R20/06 ,  H04L67/1095 ,  H04L67/125 ,  H04L67/34 ,  H04M1/72566 ,  H04M2250/10

    Abstract: Device for updating the date and time of an electronic system (1), said device comprising connection means (12) for connecting the electronic system with an assisted global positioning system (2), recovery means (13) for recovering assistance data emitted by the assisted global positioning system (2), determination means (14) for determining the current date and time of the electronic system based on said recovered assistance data, and control means (15) capable of activating the connection (12), recovery (13) and determination (14) means.

    Abstract translation: 用于更新电子系统（1）的日期和时间的设备，所述设备包括用于将电子系统与辅助的全球定位系统（2）连接的连接装置（12），用于恢复由 辅助全球定位系统（2），用于基于所述恢复的辅助数据确定电子系统的当前日期和时间的确定装置（14），以及能够启动连接（12），恢复（13）的控制装置（15） 而确定（14）意味着。

    METHOD AND APPARATUS FOR TIME SYNCHRONISATION
    9.
    发明申请
    METHOD AND APPARATUS FOR TIME SYNCHRONISATION 审中-公开
    时间同步的方法和装置

    公开(公告)号：WO2007071652A1

    公开(公告)日：2007-06-28

    申请号：PCT/EP2006/069855

    申请日：2006-12-18

    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) ,  LETHBRIDGE, Simon

    Inventor： LETHBRIDGE, Simon

    IPC: G01S1/04

    CPC classification number: G01S19/235 ,  G01S19/256

    Abstract: A method and apparatus for time synchronisation of a satellite positioning system, SPS, module (120) and a realtime clock, RTC, module (130) of a communication apparatus (100), wherein a request for time is sent to a processor module (110) of the apparatus, which sends a request for time to the RTC (130), and in response to the request, sending a synchronisation pulse from the RTC module (130) directly to the SPS module (120) .

    Abstract translation: 一种用于卫星定位系统SPS，模块（120）和通信装置（100）的实时时钟（RTC）模块（130）的时间同步的方法和装置，其中时间请求被发送到处理器模块 110），其向RTC（130）发送时间请求，并且响应于该请求，将来自RTC模块（130）的同步脉冲直接发送到SPS模块（120）。

    METHOD AND APPARATUS FOR PROCESSING SATELLITE POSITIONING SYSTEM SIGNALS
    10.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING SATELLITE POSITIONING SYSTEM SIGNALS 审中-公开
    用于处理卫星定位系统信号的方法和装置

    公开(公告)号：WO2005109028A1

    公开(公告)日：2005-11-17

    申请号：PCT/US2005/015384

    申请日：2005-05-04

    Applicant: GLOBAL LOCATE, INC. ,  ABRAHAM, Charles ,  FUCHS, Donald, L.

    Inventor： ABRAHAM, Charles ,  FUCHS, Donald, L.

    IPC: G01S1/04

    CPC classification number: H04B1/70757 ,  G01S5/0036 ,  G01S5/0205 ,  G01S19/05 ,  G01S19/235 ,  G01S19/252 ,  G01S19/256 ,  G01S19/258 ,  G01S19/30 ,  G01S19/37 ,  G01S2205/002 ,  G06F17/15 ,  H04B1/70752 ,  H04B1/70754 ,  H04B1/7077 ,  H04B2201/70715

    Abstract: Method and apparatus for processing a satellite positioning system (SPS) signal is described. In one example, a timing reference related to a SPS time of day is obtained from a wireless communication signal received by a mobile receiver. A bias in a local clock of the mobile receiver with respect to a frame timing of a repeating code broadcast by the satellite is compensated for in response to the timing reference. An expected code delay window is obtained for the SPS signal at the mobile receiver. The SPS signal is correlated with a reference code within the expected code delay window. In another example, an expected code delay window is obtained at the mobile receiver. The mobile receiver selects a sampling resolution in response to a size of the expected code delay window. The SPS signal is sampled at the selected sampling resolution and then correlated with a reference code.

    Abstract translation: 描述了用于处理卫星定位系统（SPS）信号的方法和装置。 在一个示例中，从由移动接收机接收的无线通信信号获得与一天的SPS时间相关的定时参考。 响应于定时参考，补偿移动接收机的本地时钟相对于由卫星广播的重复码的帧定时的偏移。 在移动接收机处获得SPS信号的预期代码延迟窗口。 SPS信号与期望代码延迟窗口内的参考码相关。 在另一示例中，在移动接收机处获得期望的代码延迟窗口。 移动接收机响应于期望的代码延迟窗口的大小来选择采样分辨率。 SPS信号以选定的采样分辨率采样，然后与参考码相关。

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