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    • 61. 发明申请
    • METHOD AND SYSTEM FOR DETERMINING LOCATION WITHIN A BUILDING BASED ON HISTORICAL LOCATION INFORMATION
    • 基于历史位置信息确定建筑物位置的方法和系统
    • US20110207471A1
    • 2011-08-25
    • US12748010
    • 2010-03-26
    • Dave MurrayCharles AbrahamMark BuerDavid GarrettJeyhan KaraoguzDavid Lundgren
    • Dave MurrayCharles AbrahamMark BuerDavid GarrettJeyhan KaraoguzDavid Lundgren
    • H04W64/00
    • G01S19/49H04W64/00
    • A mobile device may be operable to receive historical location trail information of a building. A location of the mobile device within the building may be determined by placing, moving or snapping a reference location of the mobile device onto a trail according to the received historical location trail information. The historical location trail information may be acquired from a location server. The historical location trail information stored in the location server may be generated using a plurality of location samples that are provided by one or more other mobile devices that have been within the building. The historical location trail information may also be acquired from an indoor map of the building that is used by the mobile device for navigation within the building. The determined location of the mobile device may then be utilized by the mobile device to navigate within the building for location-based services.
    • 移动设备可以用于接收建筑物的历史位置跟踪信息。 可以通过根据接收的历史位置跟踪信息将移动设备的参考位置放置,移动或捕捉到路径上来确定建筑物内的移动设备的位置。 可以从位置服务器获取历史位置跟踪信息。 可以使用由建筑物内的一个或多个其他移动设备提供的多个位置样本来生成存储在位置服务器中的历史位置跟踪信息。 历史位置跟踪信息也可以从建筑物的室内地图获取,该建筑物的室内地图由建筑物内的移动设备用于导航。 移动设备的确定的位置然后可以被移动设备用于在建筑物内导航以用于基于位置的服务。
    • 63. 发明授权
    • Method and system for optimized transfer of location database information
    • 用于优化位置数据库信息传输的方法和系统
    • US08774836B2
    • 2014-07-08
    • US12732973
    • 2010-03-26
    • Charles AbrahamMark BuerDavid GarrettJeyhan KaraoguzDavid LundgrenDavid Murray
    • Charles AbrahamMark BuerDavid GarrettJeyhan KaraoguzDavid LundgrenDavid Murray
    • H04W24/00H04M11/04
    • 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。
    • 64. 发明授权
    • 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
    • US08305267B2
    • 2012-11-06
    • 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设备中的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。
    • 65. 发明授权
    • Method and system for determining location within a building based on historical location information
    • 基于历史位置信息确定建筑物内的位置的方法和系统
    • US09103917B2
    • 2015-08-11
    • US12748010
    • 2010-03-26
    • Dave MurrayCharles AbrahamMark BuerDavid GarrettJeyhan KaraoguzDavid Lundgren
    • Dave MurrayCharles AbrahamMark BuerDavid GarrettJeyhan KaraoguzDavid Lundgren
    • G01S19/49H04W64/00
    • G01S19/49H04W64/00
    • A mobile device may be operable to receive historical location trail information of a building. A location of the mobile device within the building may be determined by placing, moving or snapping a reference location of the mobile device onto a trail according to the received historical location trail information. The historical location trail information may be acquired from a location server. The historical location trail information stored in the location server may be generated using a plurality of location samples that are provided by one or more other mobile devices that have been within the building. The historical location trail information may also be acquired from an indoor map of the building that is used by the mobile device for navigation within the building. The determined location of the mobile device may then be utilized by the mobile device to navigate within the building for location-based services.
    • 移动设备可以用于接收建筑物的历史位置跟踪信息。 可以通过根据接收的历史位置跟踪信息将移动设备的参考位置放置,移动或捕捉到路径上来确定建筑物内的移动设备的位置。 可以从位置服务器获取历史位置跟踪信息。 可以使用由建筑物内的一个或多个其他移动设备提供的多个位置样本来生成存储在位置服务器中的历史位置跟踪信息。 历史位置跟踪信息也可以从建筑物的室内地图获取,该建筑物的室内地图由建筑物内的移动设备用于导航。 移动设备的确定的位置然后可以被移动设备用于在建筑物内导航以用于基于位置的服务。
    • 66. 发明授权
    • Method and system for ensuring user and/or device anonymity for location based services (LBS)
    • 用于确保基于位置的服务(LBS)的用户和/或设备匿名的方法和系统
    • US09065908B2
    • 2015-06-23
    • US12732849
    • 2010-03-26
    • Mark BuerCharles AbrahamDavid GarrettJeyhan KaraoguzDavid LundgrenDavid Murray
    • Mark BuerCharles AbrahamDavid GarrettJeyhan KaraoguzDavid LundgrenDavid Murray
    • H04M3/16H04W4/02H04M3/42H04W12/02
    • H04M3/42357H04M3/42008H04W4/02H04W12/02
    • A mobile device may communicate with a location server during location based services (LBS) operations using a secure identifier. The secure identifier abstracts identification information of the mobile device and/or identification information of a user of the mobile device in instances that the mobile device and/or user identification information are deemed protectable from the location server. The location server may be operable to store location data corresponding to the mobile device and/or the user in a location reference database based on the secure identifier. The secure identifier may comprise a unique value, which may be randomly generated. The secure identifier may also be generated based on the mobile device and/or user identification information, by applying, for example, encryption algorithms to the mobile device and/or user identification information. Service providers for the mobile device may retrieve the abstracted mobile device and/or user identification information from the secure identifier.
    • 移动设备可以使用安全标识符在基于位置的服务(LBS)操作期间与位置服务器进行通信。 在移动设备和/或用户标识信息被认为可以从位置服务器保护的情况下,安全标识符摘取移动设备的标识信息和/或移动设备的用户的标识信息。 位置服务器可以可操作以基于安全标识符将与移动设备和/或用户相对应的位置数据存储在位置参考数据库中。 安全标识符可以包括可以随机生成的唯一值。 也可以通过将例如加密算法应用于移动设备和/或用户识别信息,基于移动设备和/或用户识别信息生成安全标识符。 用于移动设备的服务提供商可以从安全标识符中检索抽象的移动设备和/或用户标识信息。
    • 69. 发明申请
    • METHOD AND SYSTEM FOR CHARACTERIZING LOCATION AND/OR RANGE BASED ON TRANSMIT POWER
    • 基于发射功率表征位置和/或范围的方法和系统
    • US20110223931A1
    • 2011-09-15
    • US12732922
    • 2010-03-26
    • Mark BuerCharles AbrahamDavid GarrettJeyhan KaraoguzDavid LundgrenDavid Murray
    • Mark BuerCharles AbrahamDavid GarrettJeyhan KaraoguzDavid LundgrenDavid Murray
    • H04W24/00
    • H04W64/00G01S5/12G01S11/06G01S11/08H04W4/02H04W12/06H04W48/04H04W52/283
    • A transmitting communication device may iteratively adjust its transmit power, and may estimate, based on iterative transmit power adjustment, relative location of a receiving communication device. The transmit power may be initialized to a maximum value, and the transmit power may be iteratively reduced until connectivity with the receiving communication device is lost. The loss of connectivity may be determined based on reception of responses to ping messages transmitted by the transmitting communication device. The transmitting communication device may authenticate the receiving communication device and/or a user of the receiving communication device. The authentication may comprises utilizing transmit power adjustment and/or relative location estimation therefrom to ensure that a separation between the devices does not exceed a maximum value. The transmitting communication device may generate location info associated with the receiving communication device based on the relative location estimation, and may communicate the location info to a location server.
    • 发射通信设备可以迭代地调整其发射功率,并且可以基于迭代发射功率调整来估计接收通信设备的相对位置。 发射功率可以被初始化为最大值,并且可以迭代地减少发射功率,直到与接收通信设备的连接丢失。 可以基于对由发送通信设备发送的ping消息的响应的接收来确定连接性的损失。 发送通信设备可以认证接收通信设备和/或接收通信设备的用户。 认证可以包括利用传输功率调整和/或相对位置估计来确保设备之间的间隔不超过最大值。 发送通信设备可以基于相对位置估计生成与接收通信设备相关联的位置信息,并且可以将位置信息传送到位置服务器。