发明授权
- 专利标题： Dynamic compass calibration in a portable device
- 专利标题（中）： 便携式设备中的动态罗盘校准
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申请号： US13550938申请日： 2012-07-17
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公开(公告)号： US08494799B2公开(公告)日： 2013-07-23
- 发明人: Patrick S. Piemonte , Madhu Shrivastav , Puneet Mishra , Robert Mayor , Ronald K. Huang , Parin Patel
- 申请人： Patrick S. Piemonte , Madhu Shrivastav , Puneet Mishra , Robert Mayor , Ronald K. Huang , Parin Patel
- 申请人地址： US CA Cupertino
- 专利权人： Apple Inc.
- 当前专利权人： Apple Inc.
- 当前专利权人地址： US CA Cupertino
- 主分类号： G01C17/38
- 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.
公开/授权文献
- US20120283977A1 DYNAMIC COMPASS CALIBRATION IN A PORTABLE DEVICE 公开/授权日：2012-11-08