A system and method is disclosed to track user’s eye gaze on a lockscreen and infer whether a user has read each message on the screen. An incoming message is initially marked as unread. The system presents the message to the user on a lockscreen. Eye tracking software uses the camera's video stream to detect that the user's gaze is directed at the message on screen. When the user's gaze is detected on the message for a sufficient duration, the system may tentatively mark that message as read. The system may notify and request confirmation from the user before marking the message as read. The system may then scroll the read message offscreen, making room for new messages to be displayed. Using this method, a user may be able to read through an entire set of unread messages without touching the device.
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Lewis, Justin and Price, Thomas, "An Eye Tracking System For Smart Devices", Technical Disclosure Commons, (September 19, 2017)