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1. 发明授权

US09234965B2 Indoor positioning using pressure sensors 有权
标题翻译：使用压力传感器进行室内定位
公开(公告)号：US09234965B2
公开(公告)日：2016-01-12
申请号：US12885077
申请日：2010-09-17
申请人： SaiPradeep Venkatraman
发明人： SaiPradeep Venkatraman
IPC分类号： G01S1/00 , G01S19/48 , G01C21/20 , G09B29/10 , G01C21/34 , G01S19/46 , G01C21/08 , G09B29/00 , G01S5/02 , G08B25/10 , G01C5/06 , G01S5/00 , G01S19/10
CPC分类号： G01S5/0252 , G01C5/06 , G01C21/08 , G01C21/20 , G01C21/206 , G01C21/34 , G01S5/0045 , G01S5/0063 , G01S5/0236 , G01S5/0257 , G01S5/0263 , G01S19/10 , G01S19/46 , G01S19/48 , G08B25/10 , G09B29/00 , G09B29/008 , G09B29/10
摘要： A pressure sensor can be implemented on a network device to minimize vertical positioning errors of the network device in an indoor environment. A reference altitude and a reference pressure associated with an access point in the indoor environment are received at the network device via a communication network. A pressure is determined at the network device in the indoor environment. An altitude of the network device associated with the pressure at the network device in the indoor environment is calculated based, at least in part, on the pressure at the network device, the reference pressure, and the reference altitude. A position of the network device in the indoor environment is determined based, at least in part, on the altitude of the navigation device and location information received from at least the access point.
摘要翻译：可以在网络设备上实现压力传感器，以最小化室内环境中的网络设备的垂直定位误差。通过通信网络在网络设备处接收与室内环境中的接入点相关联的参考高度和参考压力。在室内环境中的网络设备处确定压力。至少部分地基于网络设备的压力，参考压力和参考高度来计算与室内环境中的网络设备处的压力相关联的网络设备的高度。至少部分地基于至少从接入点接收的导航装置的高度和位置信息确定网络装置在室内环境中的位置。

2. 发明申请

US20080186228A1 PREDICTION REFRESH METHOD FOR EPHEMERIS EXTENSIONS 失效
标题翻译：预测刷新方法的EPHEMERIS EXTENSIONS
公开(公告)号：US20080186228A1
公开(公告)日：2008-08-07
申请号：US12025252
申请日：2008-02-04
申请人： Lionel Garin , Pramod Gupta , SaiPradeep Venkatraman
发明人： Lionel Garin , Pramod Gupta , SaiPradeep Venkatraman
IPC分类号： G01S1/00
CPC分类号： G01S19/42 , G01S19/258 , G01S19/27
摘要： Systems, methods and devices for using ephemeris data in GNSS receivers and systems are provided. Receivers using synthetic ephemeris data for longer ephemeris availability under poor reception conditions are updated using a variety of techniques that allow for the transfer of accurate information onto degraded synthetic ephemeris information.
摘要翻译：提供了在GNSS接收机和系统中使用星历数据的系统，方法和设备。使用合成星历数据的接收机在不良接收条件下更长的星历可用性使用允许将精确信息传输到降解的合成星历信息的各种技术来更新。

3. 发明授权

US08645060B2 Positioning network availability and reliability based routing 有权
标题翻译：定位网络可用性和基于可靠性的路由
公开(公告)号：US08645060B2
公开(公告)日：2014-02-04
申请号：US12876453
申请日：2010-09-07
申请人： SaiPradeep Venkatraman
发明人： SaiPradeep Venkatraman
IPC分类号： G01C21/00
CPC分类号： G01C21/00 , G01C21/20 , G01C21/3461 , G01S19/28 , G01S19/39
摘要： A routing system can be configured to determine a route based on availability and reliability of location reference devices to determine a most reliable route between a source and a destination. Visibility information that is indicative of availability of at least a threshold number of location reference devices along the route can be determined. For each of a plurality of routes between the source and the destination, a reliability rating associated with the route can be determined based on the visibility information associated with the route. The reliability rating is indicative of a reliability of the route and an ability of the routing system to maintain continuous connectivity to the at least the threshold number of location reference devices along the route. The reliability ratings of the plurality of routes are compared to identify and to present one of the plurality of routes with a highest reliability rating.
摘要翻译：路由系统可以被配置为基于位置参考设备的可用性和可靠性来确定路由，以确定源和目的地之间最可靠的路由。可以确定指示沿着路线的至少阈值数量的位置参考装置的可用性的可见性信息。对于源和目的地之间的多个路由中的每一个，可以基于与路由相关联的可见性信息来确定与路由相关联的可靠性等级。可靠性等级表示路由的可靠性以及路由系统保持与至少沿着路线的位置参考设备的阈值数量的连续连接的能力。比较多个路由的可靠性等级，以识别并呈现具有最高可靠性等级的多条路线中的一条。

4. 发明授权

US08497801B2 Prediction refresh method for ephemeris extensions 失效
标题翻译：星历延伸的预测刷新方法
公开(公告)号：US08497801B2
公开(公告)日：2013-07-30
申请号：US12025252
申请日：2008-02-04
申请人： Lionel Garin , Pramod Gupta , SaiPradeep Venkatraman
发明人： Lionel Garin , Pramod Gupta , SaiPradeep Venkatraman
IPC分类号： G01S19/27
CPC分类号： G01S19/42 , G01S19/258 , G01S19/27
摘要： Systems, methods and devices for using ephemeris data in GNSS receivers and systems are provided. Receivers using synthetic ephemeris data for longer ephemeris availability under poor reception conditions are updated using a variety of techniques that allow for the transfer of accurate information onto degraded synthetic ephemeris information.
摘要翻译：提供了在GNSS接收机和系统中使用星历数据的系统，方法和设备。使用合成星历数据的接收机在不良接收条件下更长的星历可用性使用允许将精确信息传输到降解的合成星历信息的各种技术来更新。

5. 发明申请

US20120129461A1 Self-Positioning Of A Wireless Station 有权
标题翻译：无线站自定位
公开(公告)号：US20120129461A1
公开(公告)日：2012-05-24
申请号：US12950950
申请日：2010-11-19
申请人： SaiPradeep Venkatraman
发明人： SaiPradeep Venkatraman
IPC分类号： H04B17/00
CPC分类号： H04W4/023 , G01S5/0236 , G01S5/0242 , H04W64/003
摘要： A self-positioning mechanism is provided that determines and tracks the position of an access point in real time. A location unaware access point determines its location from the locations of location aware stations. The location is determined based on a predicted estimate which is updated based on measured values of the locations of the location aware stations over a time period. The movement of the location is then tracked based on the differences between range measurements of the location aware stations.
摘要翻译：提供了自动定位机制，其实时地确定和跟踪接入点的位置。位置不知道的接入点从位置感知站的位置确定其位置。基于在一段时间内基于位置感知站的位置的测量值更新的预测估计来确定位置。然后基于位置感知站的距离测量值之间的差异跟踪位置的移动。

6. 发明申请

US20120072110A1 INDOOR POSITIONING USING PRESSURE SENSORS 有权
标题翻译：使用压力传感器的室内定位
公开(公告)号：US20120072110A1
公开(公告)日：2012-03-22
申请号：US12885077
申请日：2010-09-17
申请人： SaiPradeep Venkatraman
发明人： SaiPradeep Venkatraman
IPC分类号： G06F19/00 , G01S19/42 , G06F15/00 , G01C21/00
CPC分类号： G01S5/0252 , G01C5/06 , G01C21/08 , G01C21/20 , G01C21/206 , G01C21/34 , G01S5/0045 , G01S5/0063 , G01S5/0236 , G01S5/0257 , G01S5/0263 , G01S19/10 , G01S19/46 , G01S19/48 , G08B25/10 , G09B29/00 , G09B29/008 , G09B29/10
摘要： A pressure sensor can be implemented on a network device to minimize vertical positioning errors of the network device in an indoor environment. A reference altitude and a reference pressure associated with an access point in the indoor environment are received at the network device via a communication network. A pressure is determined at the network device in the indoor environment. An altitude of the network device associated with the pressure at the network device in the indoor environment is calculated based, at least in part, on the pressure at the network device, the reference pressure, and the reference altitude. A position of the network device in the indoor environment is determined based, at least in part, on the altitude of the navigation device and location information received from at least the access point.
摘要翻译：可以在网络设备上实现压力传感器，以最小化室内环境中的网络设备的垂直定位误差。通过通信网络在网络设备处接收与室内环境中的接入点相关联的参考高度和参考压力。在室内环境中的网络设备处确定压力。至少部分地基于网络设备的压力，参考压力和参考高度来计算与室内环境中的网络设备处的压力相关联的网络设备的高度。至少部分地基于至少从接入点接收的导航装置的高度和位置信息确定网络装置在室内环境中的位置。

7. 发明授权

US08606188B2 Self-positioning of a wireless station 有权
标题翻译：无线电台的自定位
公开(公告)号：US08606188B2
公开(公告)日：2013-12-10
申请号：US12950950
申请日：2010-11-19
申请人： SaiPradeep Venkatraman
发明人： SaiPradeep Venkatraman
IPC分类号： H04B17/00
CPC分类号： H04W4/023 , G01S5/0236 , G01S5/0242 , H04W64/003
摘要： A self-positioning mechanism is provided that determines and tracks the position of an access point in real time. A location unaware access point determines its location from the locations of location aware stations. The location is determined based on a predicted estimate which is updated based on measured values of the locations of the location aware stations over a time period. The movement of the location is then tracked based on the differences between range measurements of the location aware stations.
摘要翻译：提供了自动定位机制，其实时地确定和跟踪接入点的位置。位置不知道的接入点从位置感知站的位置确定其位置。基于在一段时间内基于位置感知站的位置的测量值更新的预测估计来确定位置。然后基于位置感知站的距离测量值之间的差异跟踪位置的移动。

8. 发明授权

US08332137B2 Navigation system with dynamically calibrated pressure sensor 有权
标题翻译：具有动态校准压力传感器的导航系统
公开(公告)号：US08332137B2
公开(公告)日：2012-12-11
申请号：US11950207
申请日：2007-12-04
申请人： SaiPradeep Venkatraman , Quanwei Liu , Lionel Garin
发明人： SaiPradeep Venkatraman , Quanwei Liu , Lionel Garin
IPC分类号： G01C21/00
CPC分类号： G01C21/28 , G01C5/06
摘要： A navigation system includes a pressure sensor, a calibration module in communication with the pressure sensor, and an altitude module in communication with the calibration module. The calibration module is configured to determine a dynamic pressure proportionality coefficient based at least in part on a static pressure proportionality coefficient, a measured pressure value from the pressure sensor, and a velocity value. The altitude module is configured to calculate a sensor-based altitude value based at least in part on the determined dynamic pressure proportionality coefficient.
摘要翻译：导航系统包括压力传感器，与压力传感器通信的校准模块以及与校准模块通信的高度模块。校准模块被配置为至少部分地基于静压比例系数，来自压力传感器的测量压力值和速度值来确定动态压力比例系数。高度模块被配置为至少部分地基于确定的动态压力比例系数来计算基于传感器的高度值。

9. 发明申请

US20120059578A1 POSITIONING NETWORK AVAILABILITY AND RELIABILITY BASED ROUTING 有权
标题翻译：定位网络可用性和可靠性基于路由
公开(公告)号：US20120059578A1
公开(公告)日：2012-03-08
申请号：US12876453
申请日：2010-09-07
申请人： SaiPradeep Venkatraman
发明人： SaiPradeep Venkatraman
IPC分类号： G01C21/00 , G01S19/42
CPC分类号： G01C21/00 , G01C21/20 , G01C21/3461 , G01S19/28 , G01S19/39
摘要： A routing system can be configured to determine a route based on availability and reliability of location reference devices to determine a most reliable route between a source and a destination. Visibility information that is indicative of availability of at least a threshold number of location reference devices along the route can be determined. For each of a plurality of routes between the source and the destination, a reliability rating associated with the route can be determined based on the visibility information associated with the route. The reliability rating is indicative of a reliability of the route and an ability of the routing system to maintain continuous connectivity to the at least the threshold number of location reference devices along the route. The reliability ratings of the plurality of routes are compared to identify and to present one of the plurality of routes with a highest reliability rating.
摘要翻译：路由系统可以被配置为基于位置参考设备的可用性和可靠性来确定路由，以确定源和目的地之间最可靠的路由。可以确定指示沿着路线的至少阈值数量的位置参考装置的可用性的可见性信息。对于源和目的地之间的多个路由中的每一个，可以基于与路由相关联的可见性信息来确定与路由相关联的可靠性等级。可靠性等级表示路由的可靠性以及路由系统保持与至少沿着路线的位置参考设备的阈值数量的连续连接的能力。比较多个路由的可靠性等级，以识别并呈现具有最高可靠性等级的多条路线中的一条。

10. 发明申请

US20090143983A1 NAVIGATION SYSTEM WITH DYNAMICALLY CALIBRATED PRESSURE SENSOR 有权
标题翻译：具有动态校准压力传感器的导航系统
公开(公告)号：US20090143983A1
公开(公告)日：2009-06-04
申请号：US11950207
申请日：2007-12-04
申请人： SaiPradeep VENKATRAMAN , Quanwei LIU , Lionel GARIN
发明人： SaiPradeep VENKATRAMAN , Quanwei LIU , Lionel GARIN
IPC分类号： G01C21/28 , G01C5/06
CPC分类号： G01C21/28 , G01C5/06
摘要： A navigation system includes a pressure sensor, a calibration module in communication with the pressure sensor, and an altitude module in communication with the calibration module. The calibration module is configured to determine a dynamic pressure proportionality coefficient based at least in part on a static pressure proportionality coefficient, a measured pressure value from the pressure sensor, and a velocity value. The altitude module is configured to calculate a sensor-based altitude value based at least in part on the determined dynamic pressure proportionality coefficient.
摘要翻译：导航系统包括压力传感器，与压力传感器通信的校准模块以及与校准模块通信的高度模块。校准模块被配置为至少部分地基于静压比例系数，来自压力传感器的测量压力值和速度值来确定动态压力比例系数。高度模块被配置为至少部分地基于确定的动态压力比例系数来计算基于传感器的高度值。

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