- Patent Title: Method and device for detecting false movement of a mobile device
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Application No.: US15056135Application Date: 2016-02-29
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Publication No.: US09699759B1Publication Date: 2017-07-04
- Inventor: BoChih Liu , Zhike Jia , Jing Yu , Jian Chen
- Applicant: MARVELL INTERNATIONAL LTD.
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H04W64/00
- IPC: H04W64/00 ; G01P15/18

Abstract:
Aspects of the disclosure provide a method for detecting false movement of a device. The method includes receiving acceleration signals from a 3-axis accelerometer of a mobile device that are indicative of a movement of the mobile device over a window of time. The acceleration signals can include a first signal, a second signal, and a third signal corresponding to three axes of the 3-axis accelerometer. The method further includes calculating a standard deviation (SD) value for each of the acceleration signals over the window of time, determining whether the movement of the mobile device is a false movement that does not substantially change a geographic location of the mobile device based on the calculated SD values, and when the movement of the mobile device is not a false movement, triggering a location updating process for the mobile device.
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