Power management in an eye-tracking system
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United States of America Patent
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Jan 9, 2018
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app pub date -
Aug 10, 2016
filing date -
Oct 27, 2011
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Abstract
An imaging device adapted to provide eye-tracking data by imaging at least one eye of a viewer, wherein: the imaging device is switchable between at least an active mode and a ready mode; the imaging device is configured, in the active mode, to use active eye illumination, which enables tracking of a corneal reflection, and to provide eye tracking data which include eye position and eye orientation; and the imaging device is configured, in the ready mode, to reduce an illumination intensity from a value the illumination intensity has in the active mode.
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