Invention Grant
- Patent Title: Auto-calibration of orientation sensing systems
- Patent Title (中): 定向传感系统的自动校准
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Application No.: US12594244Application Date: 2008-03-27
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Publication No.: US08374817B2Publication Date: 2013-02-12
- Inventor: Hans Marc Bert Boeve , Teunis Jan Ikkink , Haris Duric
- Applicant: Hans Marc Bert Boeve , Teunis Jan Ikkink , Haris Duric
- Applicant Address: NL Eindhoven
- Assignee: NXP B.V.
- Current Assignee: NXP B.V.
- Current Assignee Address: NL Eindhoven
- Agency: Kramer & Amado P.C.
- Priority: EP07105594 20070404; WOPCT/IB2008/051148 20080327
- International Application: PCT/IB2008/051148 WO 20080327
- International Announcement: WO2008/122904 WO 20081016
- Main IPC: G01C17/38
- IPC: G01C17/38
Abstract:
An electronic device has an orientation sensing system for determining an orientation of the device. The system includes a magnetometer and an accelerometer. The system further has a calibration device configured to calibrate the sensing system for operational use. The accelerometer supplies measurements used to constrain a range of possible directions of the external magnetic field to be determined. The calibration device numerically solves a set of equations and is equally usable for a 2D or 3D magnetometer in combination with a 2D or 3D accelerometer.
Public/Granted literature
- US20100121599A1 AUTO-CALIBRATION OF ORIENTATION SENSING SYSTEMS Public/Granted day:2010-05-13
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