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    • 83. 发明申请
    • METHOD AND SYSTEM FOR STABILIZING A GNSS CLOCK BY REDUCING INTERFERENCE
    • 通过减少干扰来稳定GNSS时钟的方法和系统
    • US20110199261A1
    • 2011-08-18
    • US12732665
    • 2010-03-26
    • David LundgrenCharles AbrahamMark BuerDavid GarrettJeyhan KaraoguzDave Murray
    • David LundgrenCharles AbrahamMark BuerDavid GarrettJeyhan KaraoguzDave Murray
    • G01S19/23
    • G01S19/235H04B15/00
    • Methods and systems for stabilizing a GNSS clock by reducing interference are disclosed and may include stabilizing a frequency of a temperature compensated crystal oscillator (TCXO) on a chip in a GNSS device. A clock signal may be generated for the device by temporarily configuring circuitry adjacent to the TCXO at a constant power level. Temperature and electromagnetic interference of the TCXO may be stabilized by the constant power level of the adjacent circuitry, which may be on the chip or external to the chip. The frequency of the TCXO may be stabilized by temporarily disabling the adjacent circuitry. A GNSS clock signal may be stabilized by the configuring of the constant power level while a GNSS location may be calibrated. A GNSS location of a fixed wireless device, such as a wireless access point, may be calibrated utilizing the configured constant power level and shared with other wireless devices.
    • 公开了通过减少干扰来稳定GNSS时钟的方法和系统,并且可以包括稳定GNSS设备中芯片上的温度补偿晶体振荡器(TCXO)的频率。 可以通过以恒定功率电平临时配置与TCXO相邻的电路来为器件生成时钟信号。 TCXO的温度和电磁干扰可以通过相邻电路的恒定功率电平来稳定,相邻电路可能在芯片上或芯片的外部。 TCXO的频率可以通过临时禁用相邻电路来稳定。 可以通过配置恒定功率电平来稳定GNSS时钟信号,同时可以校准GNSS位置。 诸如无线接入点的固定无线设备的GNSS位置可以使用配置的恒定功率电平进行校准,并与其他无线设备共享。
    • 85. 发明授权
    • Sensor-assisted location-aware mobile device
    • 传感器辅助位置感知移动设备
    • US08823585B2
    • 2014-09-02
    • US12748240
    • 2010-03-26
    • Jeyhan KaraoguzCharles AbrahamMark BuerDavid GarrettDavid Albert LundgrenDavid Murray
    • Jeyhan KaraoguzCharles AbrahamMark BuerDavid GarrettDavid Albert LundgrenDavid Murray
    • G01S19/48
    • G01S19/48
    • A GNSS enabled mobile device moves from a first area where GNSS signal quality and/or level is above a threshold to a second area where GNSS signal quality and/or level is below the threshold. The GNSS enabled mobile device in the second area determines its own location utilizing previous GNSS measurements in the first area. GNSS signals are received to calculate GNSS measurements whenever the GNSS enabled mobile device is in the first area. The calculated GNSS measurements are utilized to determine a location of the GNSS enabled mobile device within the first area. The GNSS enabled mobile device in the second area utilizes the most current GNSS measurements in the first area to determine its own location. Sensors such as an image sensor, a light sensor, an audio sensor and/or a location sensor are used to refine the location of the GNSS enabled mobile device in the second area.
    • 支持GNSS的移动设备从GNSS信号质量和/或电平高于阈值的第一区域移动到GNSS信号质量和/或电平低于阈值的第二区域。 第二区域中的支持GNSS的移动设备利用在第一区域中的先前的GNSS测量来确定其自己的位置。 每当GNSS使能的移动设备处于第一区域时,GNSS信号被接收以计算GNSS测量。 所计算的GNSS测量用于确定在第一区域内支持GNSS的移动设备的位置。 第二区域中支持GNSS的移动设备利用第一区域中最新的GNSS测量来确定其自己的位置。 诸如图像传感器,光传感器,音频传感器和/或位置传感器的传感器被用来改善在第二区域中支持GNSS的移动设备的位置。
    • 87. 发明授权
    • Method and system for determining a location of a mobile device based on a plurality of location samples
    • 用于基于多个位置采样来确定移动设备的位置的方法和系统
    • US08634846B2
    • 2014-01-21
    • US12728957
    • 2010-03-22
    • David GarrettCharles AbrahamMark BuerJeyhan KaraoguzDavid LundgrenDave Murray
    • David GarrettCharles AbrahamMark BuerJeyhan KaraoguzDavid LundgrenDave Murray
    • H04W24/00
    • G01S19/48
    • A mobile device may be operable to receive three or more location samples for the mobile device from each of three or more resources. Two or more valid location samples may be selected based on an accuracy indicator associated with each of the received location samples. A location of the mobile device may be determined utilizing the selected two or more valid location samples. A region around each of the received location samples may be determined based on the accuracy indicator and a condition of a geographic environment that is associated with each of the received location samples. Two or more valid location samples among the received location samples may be selected in instances when at least a portion of the region of each of the selected valid location samples overlaps with at least a portion of the regions of each of other selected valid location samples.
    • 移动设备可以用于从三个或更多个资源中的每一个接收移动设备的三个或更多个位置样本。 可以基于与每个接收到的位置样本相关联的精度指示符来选择两个或更多个有效的位置样本。 可以使用所选择的两个或更多个有效位置样本来确定移动设备的位置。 可以基于精度指示符和与每个接收到的位置样本相关联的地理环境的条件来确定每个接收到的位置样本周围的区域。 在所选择的有效位置样本中的每一个的区域的至少一部分与每个其他选定的有效位置样本的区域的至少一部分重叠的情况下,可以选择所接收的位置样本中的两个或更多个有效位置样本。
    • 89. 发明申请
    • METHOD AND SYSTEM FOR OPTIMIZED TRANSFER OF LOCATION DATABASE INFORMATION
    • 用于优化位置数据库传输的方法和系统
    • US20110222471A1
    • 2011-09-15
    • US12732973
    • 2010-03-26
    • Charles AbrahamMark BuerDavid GarrettJeyhan KaraoguzDavid LundgrenDavid Murray
    • Charles AbrahamMark BuerDavid GarrettJeyhan KaraoguzDavid LundgrenDavid Murray
    • H04W4/00
    • H04W64/003G01S5/0236G01S19/05H04W4/02H04W4/20H04W12/06H04W64/00
    • A servicing communication device may receive a subset of a location reference database that is maintained by a plurality of location servers, and may provide location related data to a mobile device that is communicatively coupled to the servicing communication device based on the received subset. The servicing communication device may determine capabilities and/or requirements of the mobile device, and may generate the location related data based on that determination. The servicing communication device may determine attributes and/or parameters that may affect determination of the subset of the location reference database. The subset of location reference database may be requested based on the determined attributes and/or parameters. The attributes and/or parameters may comprise a location of the servicing communication device. The servicing communication device may determine its location, directly based on GNSS transmissions and/or indirectly based on assisted GNSS (A-GNSS) data received from the plurality of location servers.
    • 服务通信设备可以接收由多个位置服务器维护的位置参考数据库的子集,并且可以基于所接收的子集向通信地耦合到服务通信设备的移动设备提供位置相关数据。 服务通信设备可以确定移动设备的能力和/或要求,并且可以基于该确定来生成位置相关数据。 服务通信设备可以确定可能影响位置参考数据库的子集的确定的属性和/或参数。 可以基于所确定的属性和/或参数来请求位置参考数据库的子集。 属性和/或参数可以包括服务通信设备的位置。 服务通信设备可以直接基于GNSS传输和/或间接地基于从多个位置服务器接收到的辅助GNSS(A-GNSS)数据来确定其位置。
    • 90. 发明申请
    • METHOD AND SYSTEM FOR SEAMLESS CONSUMMATION OF AN ELECTRONIC TRANSACTION BASED ON LOCATION RELATED DATA
    • 基于位置相关数据的电子交易无缝消费的方法和系统
    • US20110212735A1
    • 2011-09-01
    • US12748104
    • 2010-03-26
    • Mark BuerCharles AbrahamDavid GarrettJeyhan KaraoguzDavid LundgrenDavid Murray
    • Mark BuerCharles AbrahamDavid GarrettJeyhan KaraoguzDavid LundgrenDavid Murray
    • H04W64/00
    • H04W4/029
    • A mobile device may determine its location, receive transaction related information, and initiate, based on its determined location and/or the transaction related information, a transaction at the current location. The transaction related information may be received from a location server. The mobile device and/or its users may also be authenticated, using the location server. The initiated transaction may be completed automatically, without user input. The device user may also be prompted for authorization and/or information for completing the transaction. The transaction related information may specify if and/or when transactions are to be completed automatically. The mobile device may track user actions via the mobile device, and may generate based on that tracking, user action data pertaining transactions initiated and/or conducted by the user. The generated user action data may be communicated to the location server, and may be used to update the profile data maintained by the location server.
    • 移动设备可以基于其确定的位置和/或交易相关信息来确定其位置,接收交易相关信息,以及在当前位置发起交易。 交易相关信息可以从位置服务器接收。 移动设备和/或其用户也可以使用位置服务器进行认证。 启动的事务可以自动完成,无需用户输入。 还可以提示设备用户用于完成交易的授权和/或信息。 交易相关信息可以指定是否和/或何时自动完成交易。 移动设备可以经由移动设备跟踪用户动作,并且可以基于该跟踪生成关于由用户发起和/或执行的交易的用户动作数据。 生成的用户动作数据可以被传送到位置服务器,并且可以用于更新由位置服务器维护的简档数据。