Patents by Inventor Per-Edvin Stoltz

Per-Edvin Stoltz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11089254
    Abstract: Techniques for reducing a read out time and power consumption of an image sensor used for eye tracking are described. In an example, a position of an eye element in an active area of a sensor is determined. The eye element can be any of an eye, a pupil of the eye, an iris of the eye, or a glint at the eye. A region of interest (ROI) around the position of the eye is defined. The image sensor reads out pixels confined to the ROI, thereby generating an ROI image that shows the eye element.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: August 10, 2021
    Assignee: Tobii AB
    Inventors: Magnus Ivarsson, Per-Edvin Stoltz, David Masko, Niklas Ollesson, Mårten Skogö, Peter Blixt, Henrik Jönsson
  • Publication number: 20210014442
    Abstract: Techniques for reducing a read out time and power consumption of an image sensor used for eye tracking are described. In an example, a position of an eye element in an active area of a sensor is determined. The eye element can be any of an eye, a pupil of the eye, an iris of the eye, or a glint at the eye. A region of interest (ROI) around the position of the eye is defined. The image sensor reads out pixels confined to the ROI, thereby generating an ROI image that shows the eye element.
    Type: Application
    Filed: February 20, 2020
    Publication date: January 14, 2021
    Applicant: Tobii AB
    Inventors: Magnus Ivarsson, Per-Edvin Stoltz, David Masko, Niklas Ollesson, Mårten Skogö, Peter Blixt, Henrik Jönsson
  • Patent number: 10594974
    Abstract: Techniques for reducing a read out time and power consumption of an image sensor used for eye tracking are described. In an example, a position of an eye element in an active area of a sensor is determined. The eye element can be any of an eye, a pupil of the eye, an iris of the eye, or a glint at the eye. A region of interest (ROI) around the position of the eye is defined. The image sensor reads out pixels confined to the ROI, thereby generating an ROI image that shows the eye element.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: March 17, 2020
    Assignee: Tobii AB
    Inventors: Magnus Ivarsson, Per-Edvin Stoltz, David Masko, Niklas Ollesson, Mårten Skogö, Peter Blixt, Henrik Jönsson
  • Patent number: 10528131
    Abstract: A system and techniques for calibrating an eye tracking system are described. The system can update the calibration of personal calibration parameters continuously based on a user's gaze on a user interface, following user interface stimulus events. The system improves continuous calibration techniques by determining an association between the user's eye sequences and the stimulus events, and updates the personal calibration parameters accordingly. A record indicative of a user gaze, including eye sequences, such as eye movements or eye fixations, is maintained over a time period. A user interface stimulus event associated with the user interface and occurring within the time period is detected. An association is determined between the eye sequence and the user interface stimulus event. An interaction observation that includes the eye sequence and a location of the stimulus event is generated. Personal calibration parameters are updated based on the interaction observation.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: January 7, 2020
    Assignee: Tobii AB
    Inventors: Alexander Davies, Maria Gordon, Per-Edvin Stoltz
  • Publication number: 20190354172
    Abstract: A system and techniques for calibrating an eye tracking system are described. The system can update the calibration of personal calibration parameters continuously based on a user's gaze on a user interface, following user interface stimulus events. The system improves continuous calibration techniques by determining an association between the user's eye sequences and the stimulus events, and updates the personal calibration parameters accordingly. A record indicative of a user gaze, including eye sequences, such as eye movements or eye fixations, is maintained over a time period. A user interface stimulus event associated with the user interface and occurring within the time period is detected. An association is determined between the eye sequence and the user interface stimulus event. An interaction observation that includes the eye sequence and a location of the stimulus event is generated. Personal calibration parameters are updated based on the interaction observation.
    Type: Application
    Filed: May 16, 2018
    Publication date: November 21, 2019
    Applicant: Tobii AB
    Inventors: Alexander Davies, Maria Gordon, Per-Edvin Stoltz
  • Publication number: 20180270436
    Abstract: Techniques for reducing a read out time and power consumption of an image sensor used for eye tracking are described. In an example, a position of an eye element in an active area of a sensor is determined. The eye element can be any of an eye, a pupil of the eye, an iris of the eye, or a glint at the eye. A region of interest (ROI) around the position of the eye is defined. The image sensor reads out pixels confined to the ROI, thereby generating an ROI image that shows the eye element.
    Type: Application
    Filed: May 10, 2018
    Publication date: September 20, 2018
    Applicant: Tobii AB
    Inventors: Magnus Ivarsson, Per-Edvin Stoltz, David Masko, Niklas Ollesson, Mårten Skogö, Peter Blixt, Henrik Jönsson