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公开(公告)号：US20120157158A1
公开(公告)日：2012-06-21
申请号：US13301650
申请日：2011-11-21
IPC分类号： H04W88/02
摘要： A parameter related to the Earth's magnetic field can be used to determine accuracy of a magnetometer of a mobile device. In one aspect, a first instance of a parameter related to Earth's magnetic field is determined using data generated by the magnetometer. The magnetometer data can be based in part on a position of the mobile device with respect to the Earth. A second instance of the parameter can be determined using data generated by a model of Earth's magnetic field. The model data can also be based in part on the position of the mobile device with respect to the Earth. The first instance of the parameter can be compared with the second instance of the parameter. An accuracy metric for the magnetometer can be determined based on a result of the comparison. An indication of the accuracy metric can be presented by the mobile device.
摘要翻译： 可以使用与地球磁场相关的参数来确定移动设备的磁力计的精度。 在一个方面，使用由磁力计产生的数据来确定与地球磁场相关的参数的第一个实例。 磁力计数据可以部分地基于移动设备相对于地球的位置。 可以使用地球磁场模型生成的数据来确定参数的第二个实例。 模型数据也可以部分地基于移动设备相对于地球的位置。 参数的第一个实例可以与参数的第二个实例进行比较。 可以基于比较的结果来确定磁力计的精度度量。 可以由移动设备呈现精度度量的指示。
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公开(公告)号：US20100307016A1
公开(公告)日：2010-12-09
申请号：US12479717
申请日：2009-06-05
摘要： A parameter related to the Earth's magnetic field can be used to determine accuracy of a magnetometer of a mobile device. In one aspect, a first instance of a parameter related to Earth's magnetic field is determined using data generated by the magnetometer. The magnetometer data can be based in part on a position of the mobile device with respect to the Earth. A second instance of the parameter can be determined using data generated by a model of Earth's magnetic field. The model data can also be based in part on the position of the mobile device with respect to the Earth. The first instance of the parameter can be compared with the second instance of the parameter. An accuracy metric for the magnetometer can be determined based on a result of the comparison. An indication of the accuracy metric can be presented by the mobile device.
摘要翻译： 可以使用与地球磁场相关的参数来确定移动设备的磁力计的精度。 在一个方面，使用由磁力计产生的数据来确定与地球磁场相关的参数的第一个实例。 磁力计数据可以部分地基于移动设备相对于地球的位置。 可以使用地球磁场模型生成的数据来确定参数的第二个实例。 模型数据也可以部分地基于移动设备相对于地球的位置。 参数的第一个实例可以与参数的第二个实例进行比较。 可以基于比较的结果来确定磁力计的精度度量。 可以由移动设备呈现精度度量的指示。
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公开(公告)号：US20110131825A1
公开(公告)日：2011-06-09
申请号：US13030067
申请日：2011-02-17
IPC分类号： G01C17/38
摘要： A parameter related to the Earth's magnetic field can be used to determine accuracy of a magnetometer of a mobile device. In one aspect, a first instance of a parameter related to Earth's magnetic field is determined using data generated by the magnetometer. The magnetometer data can be based in part on a position of the mobile device with respect to the Earth. A second instance of the parameter can be determined using data generated by a model of Earth's magnetic field. The model data can also be based in part on the position of the mobile device with respect to the Earth. The first instance of the parameter can be compared with the second instance of the parameter. An accuracy metric for the magnetometer can be determined based on a result of the comparison. An indication of the accuracy metric can be presented by the mobile device.
摘要翻译： 可以使用与地球磁场相关的参数来确定移动设备的磁力计的精度。 在一个方面，使用由磁力计产生的数据来确定与地球磁场相关的参数的第一个实例。 磁力计数据可以部分地基于移动设备相对于地球的位置。 可以使用地球磁场模型生成的数据来确定参数的第二个实例。 模型数据也可以部分地基于移动设备相对于地球的位置。 参数的第一个实例可以与参数的第二个实例进行比较。 可以基于比较的结果来确定磁力计的精度度量。 可以由移动设备呈现精度度量的指示。
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公开(公告)号：US07891103B2
公开(公告)日：2011-02-22
申请号：US12479717
申请日：2009-06-05
IPC分类号： G01C17/38
摘要： A parameter related to the Earth's magnetic field can be used to determine accuracy of a magnetometer of a mobile device. In one aspect, a first instance of a parameter related to Earth's magnetic field is determined using data generated by the magnetometer. The magnetometer data can be based in part on a position of the mobile device with respect to the Earth. A second instance of the parameter can be determined using data generated by a model of Earth's magnetic field. The model data can also be based in part on the position of the mobile device with respect to the Earth. The first instance of the parameter can be compared with the second instance of the parameter. An accuracy metric for the magnetometer can be determined based on a result of the comparison. An indication of the accuracy metric can be presented by the mobile device.
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公开(公告)号：US08061049B2
公开(公告)日：2011-11-22
申请号：US13030067
申请日：2011-02-17
IPC分类号： G01C17/38
摘要： A parameter related to the Earth's magnetic field can be used to determine accuracy of a magnetometer of a mobile device. In one aspect, a first instance of a parameter related to Earth's magnetic field is determined using data generated by the magnetometer. The magnetometer data can be based in part on a position of the mobile device with respect to the Earth. A second instance of the parameter can be determined using data generated by a model of Earth's magnetic field. The model data can also be based in part on the position of the mobile device with respect to the Earth. The first instance of the parameter can be compared with the second instance of the parameter. An accuracy metric for the magnetometer can be determined based on a result of the comparison. An indication of the accuracy metric can be presented by the mobile device.
摘要翻译： 可以使用与地球磁场相关的参数来确定移动设备的磁力计的精度。 在一个方面，使用由磁力计产生的数据来确定与地球磁场相关的参数的第一个实例。 磁力计数据可以部分地基于移动设备相对于地球的位置。 可以使用地球磁场模型生成的数据来确定参数的第二个实例。 模型数据也可以部分地基于移动设备相对于地球的位置。 参数的第一个实例可以与参数的第二个实例进行比较。 可以基于比较的结果来确定磁力计的精度度量。 可以由移动设备呈现精度度量的指示。
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公开(公告)号：US20120283977A1
公开(公告)日：2012-11-08
申请号：US13550938
申请日：2012-07-17
申请人： Patrick S. Piemonte , Madhu Shrivastav , Puneet Mishra , Robert Mayor , Ronald K. Huang , Parin Patel
发明人： Patrick S. Piemonte , Madhu Shrivastav , Puneet Mishra , Robert Mayor , Ronald K. Huang , Parin Patel
摘要： The magnitude of a sensed, raw magnetic field in a portable device is monitored over a given time interval. The monitored magnitude is compared with predetermined criteria. Based on the comparison, recalibration of a compass function is signed. Other embodiments are also described and claimed.
摘要翻译： 在给定的时间间隔内监测便携式设备中感测的原始磁场的大小。 将监测的量值与预定标准进行比较。 根据比较，对罗盘功能进行了重新校准。 还描述和要求保护其他实施例。
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公开(公告)号：US08239153B2
公开(公告)日：2012-08-07
申请号：US12479203
申请日：2009-06-05
申请人： Patrick S. Piemonte , Madhu Shrivastav , Puneet Mishra , Robert Mayor , Ronald K. Huang , Parin Patel
发明人： Patrick S. Piemonte , Madhu Shrivastav , Puneet Mishra , Robert Mayor , Ronald K. Huang , Parin Patel
IPC分类号： G01C17/38
摘要： The magnitude of a sensed, raw magnetic field in a portable device is monitored over a given time interval. The monitored magnitude is compared with predetermined criteria. Based on the comparison, recalibration of a compass function is signed. Other embodiments are also described and claimed.
摘要翻译： 在给定的时间间隔内监测便携式设备中感测的原始磁场的大小。 将监测的量值与预定标准进行比较。 根据比较，对罗盘功能进行了重新校准。 还描述和要求保护其他实施例。
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公开(公告)号：US20100307015A1
公开(公告)日：2010-12-09
申请号：US12479196
申请日：2009-06-05
IPC分类号： G01C17/38
CPC分类号： G01C17/38
摘要： Multiple instances of a geomagnetic field are calculated. Multiple instances of an average magnitude of a subset of the instances of the geomagnetic field are also calculated. When the average magnitude changes by more than a first predetermined threshold, the user is informed that compass accuracy has degraded. Other embodiments are also described and claimed.
摘要翻译： 计算地磁场的多个实例。 还计算了地磁场实例的子集的平均幅度的多个实例。 当平均幅度改变超过第一预定阈值时，通知用户罗盘精度已经降低。 还描述和要求保护其他实施例。
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公开(公告)号：US20100312509A1
公开(公告)日：2010-12-09
申请号：US12479182
申请日：2009-06-05
CPC分类号： G01C17/38
摘要： Measurement data is collected from a magnetic sensor in a portable device, while the device is being carried by its end user and without requiring the end user to deliberately rotate or position the device while the output data is being collected. For example, the device may be held in the user's hand while walking or standing, or it may be fixed to the dashboard of an automobile or boat. Measurement data may also be collected from one or more positing, orientation or movement sensors. The collected measurement data from one or both of the magnetic sensor and the position, orientation or movement sensor is processed. In response, either a 2D compass calibration process or a 3D process is signaled to be performed. Other embodiments are also described and claimed.
摘要翻译： 测量数据从便携式设备中的磁性传感器收集，同时该设备由其最终用户携带，而不需要最终用户在收集输出数据时故意旋转或定位设备。 例如，该装置可以在行走或站立时保持在用户的手中，或者可以将其固定在汽车或船的仪表板上。 也可以从一个或多个定位，取向或运动传感器收集测量数据。 从一个或两个磁传感器和位置，方向或运动传感器的收集的测量数据被处理。 作为响应，信号通知2D罗盘校准过程或3D处理。 还描述和要求保护其他实施例。
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公开(公告)号：US08494799B2
公开(公告)日：2013-07-23
申请号：US13550938
申请日：2012-07-17
申请人： Patrick S. Piemonte , Madhu Shrivastav , Puneet Mishra , Robert Mayor , Ronald K. Huang , Parin Patel
发明人： Patrick S. Piemonte , Madhu Shrivastav , Puneet Mishra , Robert Mayor , Ronald K. Huang , Parin Patel
IPC分类号： G01C17/38
摘要： The magnitude of a sensed, raw magnetic field in a portable device is monitored over a given time interval. The monitored magnitude is compared with predetermined criteria. Based on the comparison, recalibration of a compass function is signed. Other embodiments are also described and claimed.
摘要翻译： 在给定的时间间隔内监测便携式设备中感测的原始磁场的大小。 将监测的量值与预定标准进行比较。 根据比较，对罗盘功能进行了重新校准。 还描述和要求保护其他实施例。
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