PORTABLE DEVICE WITH IMPROVED SENSOR POSITION CHANGE DETECTION
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United States of America Patent
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Issued Date -
Feb 22, 2018
app pub date -
Aug 19, 2016
filing date -
Aug 19, 2016
priority date (Note) -
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Abstract
The invention relates to a portable device with improved sensor position change detection. It aims at detecting a change of position of a mobile device relative to a user and, based on this change of position, a change of orientation of the mobile device relative to the user. This allows, when the orientation of the mobile device suddenly changes relative to a user, to keep track of this change. This is particularly useful for position tracking techniques such as Pedestrian Dead Recognition (PDR), which rely on an iterative determination of the orientation of a mobile device relative to the user, and may be affected by a sudden and important change of this relative orientation.
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