Handheld observation device comprising a digital magnetic compass
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United States of America Patent
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Mar 13, 2018
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app pub date -
Apr 9, 2015
filing date -
Apr 9, 2014
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Abstract
The invention relates to a handheld observation device including a digital magnetic compass for measuring a magnetic field direction of a magnetic field present, a gravitation sensor for measuring a gravitational field direction of a gravitational field present, and a control and evaluation unit configured for determining an externally referenced orientation of the observation device depending on a measured magnetic field direction and a measured gravitational field direction and with application of an algorithmic disturbance suppression, for which compensation parameters are stored. The observation device can also include a video tracking system (4) for recording an image sequence and for deriving orientation changes of the observation device.
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