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1. 发明授权

US07319877B2 Methods for determining the approximate location of a device from ambient signals 有权
标题翻译：用于根据环境信号确定设备的大致位置的方法
公开(公告)号：US07319877B2
公开(公告)日：2008-01-15
申请号：US10742208
申请日：2003-12-19
申请人： John C. Krumm , Gerald F. Cermak , Eric J. Horvitz , Edward C. Miller , Adel Amin AbdelAzim Youssef
发明人： John C. Krumm , Gerald F. Cermak , Eric J. Horvitz , Edward C. Miller , Adel Amin AbdelAzim Youssef
IPC分类号： H04Q7/20
CPC分类号： G01S5/0252 , G01S5/0027 , G08G1/0962 , G08G1/0967 , G08G1/096716 , G08G1/096741 , G08G1/096775
摘要： The present invention leverages changes in the sensed strength of radio signals at different locations to determine a device's location. In one instance of the invention, inference procedures are used to process ambient commercial radio signals, to estimate a location or a probability distribution over the locations of a device. In an instance of the invention, learning and inference methods are applied to rank vector of signal strength vectors. Moving to such rank orderings leads to methods that bypass consideration of absolute signal strengths in location calculations. The invention facilitates approximations for locating a device by providing a method that does not require a substantial number of available ambient signal strengths while still providing useful location inferences in determining locations.
摘要翻译：本发明利用在不同位置处的无线电信号的感测强度的变化来确定设备的位置。在本发明的一个实例中，推理程序用于处理环境商业无线电信号，以估计设备位置上的位置或概率分布。在本发明的实例中，将学习和推理方法应用于信号强度矢量的秩矢量。移动到这样的排序导致方法绕过位置计算中绝对信号强度的考虑。本发明通过提供一种不需要大量可用环境信号强度同时仍然在确定位置提供有用的位置推断的方法来促进用于定位设备的近似。

2. 发明授权

US07738881B2 Systems for determining the approximate location of a device from ambient signals 失效
标题翻译：用于根据环境信号确定设备的大致位置的系统
公开(公告)号：US07738881B2
公开(公告)日：2010-06-15
申请号：US10741783
申请日：2003-12-19
申请人： John C. Krumm , Gerald F. Cermak , Eric J. Horvitz , Edward C. Miller , Adel Amin AbdelAzim Youssef
发明人： John C. Krumm , Gerald F. Cermak , Eric J. Horvitz , Edward C. Miller , Adel Amin AbdelAzim Youssef
IPC分类号： H04W24/00
CPC分类号： G01C21/28 , G01S5/0027 , G01S5/0252 , G08G1/0962 , G08G1/0967 , G08G1/096716 , G08G1/096741 , G08G1/096775
摘要： The present invention leverages changes in the sensed strength of radio signals at different locations to determine a device's location. In one instance of the present invention, inference procedures are used to process ambient commercial radio signals, to estimate a location or a probability distribution over the locations of a device. In another instance of the present invention, a system utilizes learning and inference methods that are applied to rank vector of signal strength vectors. Moving to such rank orderings leads to systems that bypass consideration of absolute signal strengths in location calculations. The present invention facilitates approximations for locating a device by providing a system that does not require a substantial number of available ambient signal strengths while still providing useful location inferences in determining locations.
摘要翻译：本发明利用在不同位置处的无线电信号的感测强度的变化来确定设备的位置。在本发明的一个实例中，推理程序用于处理环境商业无线电信号，以估计设备位置上的位置或概率分布。在本发明的另一个实例中，系统利用应用于信号强度矢量的秩矢量的学习和推理方法。移动到这样的排序导致系统绕过位置计算中绝对信号强度的考虑。本发明通过提供不需要大量可用环境信号强度的系统来帮助定位设备，同时仍然在确定位置方面提供有用的位置推断。

3. 发明授权

US07202816B2 Utilization of the approximate location of a device determined from ambient signals 有权
标题翻译：利用从环境信号确定的设备的大致位置
公开(公告)号：US07202816B2
公开(公告)日：2007-04-10
申请号：US10742198
申请日：2003-12-19
申请人： John C. Krumm , Gerald F. Cermak , Eric J. Horvitz , Edward C. Miller , Adel Amin AbdelAzim Youssef
发明人： John C. Krumm , Gerald F. Cermak , Eric J. Horvitz , Edward C. Miller , Adel Amin AbdelAzim Youssef
IPC分类号： G01S3/02
CPC分类号： G01C21/00 , G01S5/0027 , G01S5/0252 , G08G1/0962 , G08G1/0967 , G08G1/096716 , G08G1/096741 , G08G1/096775
摘要： The present invention employs approximate device locations determined from changes in the sensed strength of radio signals at different locations. In one instance of the invention, the approximate device locations are based on inference procedures that are used to process ambient commercial radio signals, to estimate a location or a probability distribution over the locations of a device. In another instance of the invention, approximate device locations derived from learning and inference methods that are applied to rank vector of signal strength vectors are utilized. Moving to such rank orderings leads to methods that bypass consideration of absolute signal strengths in location calculations. The invention utilizes approximations for a device location that is based on a method that does not require a substantial number of available ambient signal strengths while still providing useful location inferences in determining locations. Several location-centric services are supported, including receipt of location-specific information such as traffic reports, emergency information, transmission about device location, and time-sensitive promotions such as discounts offered by businesses for load balancing the provision of services.
摘要翻译：本发明使用由不同位置处的无线电信号的感测强度的变化确定的近似设备位置。在本发明的一个实例中，近似设备位置基于用于处理环境商业无线电信号的推理过程，以估计设备位置上的位置或概率分布。在本发明的另一个实例中，利用从学习和推理方法导出的近似设备位置，其应用于信号强度向量的秩矢量。移动到这样的排序导致方法绕过位置计算中绝对信号强度的考虑。本发明利用基于不需要大量可用环境信号强度的方法的设备位置的近似，同时仍然在确定位置时提供有用的位置推断。支持几个以位置为中心的服务，包括收到位置特定信息，如流量报告，紧急信息，设备位置传输，以及时间敏感的促销活动，如企业提供的负担平衡提供服务的折扣。

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