Patents by Inventor John Elvesjo

John Elvesjo 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: 9829973
    Abstract: There is provided methods, systems and computer program products for identifying an interaction element from one or more interaction elements present in a user interface, comprising: receiving gaze information from an eye tracking system; determining the likelihood that an interaction element is the subject of the gaze information from the eye tracking system; and identifying an interaction element from the one or more interaction elements based on said likelihood determination.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: November 28, 2017
    Assignee: Tobii AB
    Inventors: Anders Vennström, Mårten Skogö, John Elvesjö
  • Patent number: 9760170
    Abstract: The present invention relates to control of a computer system, which includes a data processing unit, a display and an eye tracker adapted to register a user's gaze point with respect to the display The data processing unit is adapted to present graphical information on the display, which includes feedback data reflecting the user's commands entered into the unit. The data processing unit is adapted to present the feedback data such that during an initial phase, the feedback data is generated based on an absolute position of the gaze point. An imaging device of the system is also adapted to register image data representing movements of a body part of the user, and to forward a representation of the image data to the data processing unit. Hence, during a phase subsequent to the initial phase, the data is instead generated based on the image data.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: September 12, 2017
    Assignee: TOBII AB
    Inventors: John Elvesjö, Anders Olsson, Johan Sahlen
  • Publication number: 20170220107
    Abstract: A visual display includes hidden reference illuminators adapted to emit invisible light for generating corneo-scleral reflections on an eye watching a screen surface of the display. The tracking of such reflections and the pupil center provides input to gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. Also provides are a system and method for determining a gaze point of an eye watching a visual display that includes reference illuminators. The determination of the gaze point may be based on an ellipsoidal cornea model.
    Type: Application
    Filed: April 10, 2017
    Publication date: August 3, 2017
    Inventors: Peter Blixt, Anders Kingback, Bengt Rehnstrom, John Elvesjö, Mattias Kuldkepp
  • Publication number: 20170177079
    Abstract: A computer system can be controlled with non-contact inputs, such as eye-tracking devices. A visual indicator can be presented on a display to indicate the location where a computer function will take place (e.g., a common cursor). The visual indicator can be moved to a gaze target in response to continued detection of an action (e.g., touchpad touch) by a user for a predetermined period of time. A delay between the action and the movement of the visual indicator can allow a user time to “abort” movement of the visual indicator. Additionally, once the visual indicator has moved, the visual indicator can be controlled with additional precision as the user moves the gaze while continuing the action (e.g., continued holding of the touchpad).
    Type: Application
    Filed: March 3, 2017
    Publication date: June 22, 2017
    Applicant: Tobii AB
    Inventors: Erland George-Svahn, David Figgins Henderek, Rebecka Lannsjö, Mårten Skogö, John Elvesjö
  • Patent number: 9632180
    Abstract: A visual display includes hidden reference illuminators adapted to emit invisible light for generating corneo-scleral reflections on an eye watching a screen surface of the display. The tracking of such reflections and the pupil center provides input to gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. Also provides are a system and method for determining a gaze point of an eye watching a visual display that includes reference illuminators. The determination of the gaze point may be based on an ellipsoidal cornea model.
    Type: Grant
    Filed: January 25, 2016
    Date of Patent: April 25, 2017
    Assignee: TOBII AB
    Inventors: Peter Blixt, Anders Kingback, Bengt Rehnstrom, John Elvesjö, Mattias Kuldkepp
  • Publication number: 20170109513
    Abstract: According to the invention a system for authenticating a user of a device is disclosed. The system may include a first image sensor, a determination unit, and an authentication unit. The first image sensor may be for capturing at least one image of at least part of a user. The determination unit may be for determining information relating to the user's eye based at least in part on at least one image captured by the first image sensor. The authentication unit may be for authenticating the user using the information relating to the user's eye.
    Type: Application
    Filed: December 30, 2016
    Publication date: April 20, 2017
    Applicant: Tobii AB
    Inventors: Mårten Skogö, Richard Hainzl, Henrik Jönsson, Anders Vennström, Erland George-Svahn, John Elvesjö
  • Patent number: 9619020
    Abstract: A computer system can be controlled with non-contact inputs, such as eye-tracking devices. A visual indicator can be presented on a display to indicate the location where a computer function will take place (e.g., a common cursor). The visual indicator can be moved to a gaze target in response to continued detection of an action (e.g., touchpad touch) by a user for a predetermined period of time. A delay between the action and the movement of the visual indicator can allow a user time to “abort” movement of the visual indicator. Additionally, once the visual indicator has moved, the visual indicator can be controlled with additional precision as the user moves the gaze while continuing the action (e.g., continued holding of the touchpad).
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: April 11, 2017
    Assignee: Tobii AB
    Inventors: Erland George-Svahn, David Figgins Henderek, Rebecka Lannsjö, Mårten Skogö, John Elvesjö
  • Publication number: 20170045940
    Abstract: An image sensing apparatus has a light sensitive area and a control unit. The light sensitive area registers image data in response to an incoming amount of light, and is operable in an active mode wherein image data can be read out there from as well as in a standby mode wherein image data cannot be read out. The control unit produces a control signal setting the light sensitive area to operate in the active mode and the standby mode respectively in a cyclic manner during an operation period, which preferably encompasses multiple data frame read-outs of image data from the light sensitive area.
    Type: Application
    Filed: October 27, 2016
    Publication date: February 16, 2017
    Inventors: Marten Skogo, Henrik Jonsson, Mattias O. Karlsson, Mattias Kuldkepp, John Elvesjo, Ingemar Mattias Karlsson
  • Publication number: 20160353025
    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.
    Type: Application
    Filed: August 10, 2016
    Publication date: December 1, 2016
    Applicant: TOBII AB
    Inventors: Henrik Eskilsson, Mårten Skogö, John Elvesjö, Peter Blixt
  • Patent number: 9509910
    Abstract: An image sensing apparatus has a light sensitive area and a control unit. The light sensitive area registers image data in response to an incoming amount of light, and is operable in an active mode wherein image data can be read out there from as well as in a standby mode wherein image data cannot be read out. The control unit produces a control signal setting the light sensitive area to operate in the active mode and the standby mode respectively in a cyclic manner during an operation period, which preferably encompasses multiple data frame read-outs of image data from the light sensitive area.
    Type: Grant
    Filed: April 10, 2014
    Date of Patent: November 29, 2016
    Assignee: TOBII AB
    Inventors: Marten Skogo, Henrik Jonsson, Mattias O. Karlsson, Mattias Kuldkepp, John Elvesjo, Ingemar Mattias Karlsson
  • Publication number: 20160314349
    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 to use active eye illumination in the active mode, which enables tracking of a corneal reflection; 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, and to provide eye-tracking data which include eye position but not eye orientation.
    Type: Application
    Filed: July 6, 2016
    Publication date: October 27, 2016
    Applicant: Tobii AB
    Inventors: Henrik Eskilsson, Mårten Skogö, John Elvesjö, Peter Blixt
  • Publication number: 20160307038
    Abstract: According to the invention a system for authenticating a user of a device is disclosed. The system may include a first image sensor, a determination unit, and an authentication unit. The first image sensor may be for capturing at least one image of at least part of a user. The determination unit may be for determining information relating to the user's eye based at least in part on at least one image captured by the first image sensor. The authentication unit may be for authenticating the user using the information relating to the user's eye.
    Type: Application
    Filed: April 18, 2016
    Publication date: October 20, 2016
    Inventors: Mårten Skogö, Richard Hainzl, Henrik Jönsson, Anders Vennström, Erland George-Svahn, John Elvesjö
  • Patent number: 9442566
    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 to use active eye illumination in the active mode, which enables tracking of a corneal reflection; 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, and to provide eye-tracking data which include eye position but not eye orientation.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: September 13, 2016
    Assignee: TOBII AB
    Inventors: Henrik Eskilsson, Mårten Skogö, John Elvesjö, Peter Blixt
  • Publication number: 20160231811
    Abstract: The present invention relates to control of a computer system, which includes a data processing unit, a display and an eye tracker adapted to register a user's gaze point with respect to the display The data processing unit is adapted to present graphical information on the display, which includes feedback data reflecting the user's commands entered into the unit. The data processing unit is adapted to present the feedback data such that during an initial phase, the feedback data is generated based on an absolute position of the gaze point. An imaging device of the system is also adapted to register image data representing movements of a body part of the user, and to forward a representation of the image data to the data processing unit. Hence, during a phase subsequent to the initial phase, the data is instead generated based on the image data.
    Type: Application
    Filed: December 4, 2015
    Publication date: August 11, 2016
    Inventors: John ELVESJÖ, Anders OLSSON, Johan SAHLEN
  • Publication number: 20160216761
    Abstract: A method and system for assisting a user when interacting with a graphical user interface combines gaze based input with gesture based user commands. A user of a computer system without a traditional touch-screen can interact with graphical user interfaces in a touch-screen like manner using a combination of gaze based input and gesture based user commands. A solution for touch-screen like interaction uses gaze input and gesture based input as a complement or an alternative to touch-screen interactions with a computer device having a touch-screen. Combined gaze and gesture based interaction with graphical user interfaces can be used to achieve a touchscreen like environment in computer systems without a traditional touchscreen or in computer systems having a touchscreen arranged ergonomically unfavorable for the user or a touchscreen arranged such that it is more comfortable for the user to use gesture and gaze for the interaction than the touchscreen.
    Type: Application
    Filed: March 31, 2016
    Publication date: July 28, 2016
    Inventors: Andreas Klingström, Mårten Skogö, Richard Hainzl, John Elvesjö
  • Publication number: 20160139268
    Abstract: A visual display includes hidden reference illuminators adapted to emit invisible light for generating corneo-scleral reflections on an eye watching a screen surface of the display. The tracking of such reflections and the pupil center provides input to gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. Also provides are a system and method for determining a gaze point of an eye watching a visual display that includes reference illuminators. The determination of the gaze point may be based on an ellipsoidal cornea model.
    Type: Application
    Filed: January 25, 2016
    Publication date: May 19, 2016
    Inventors: PETER BLIXT, ANDERS KINGBACK, Bengt REHNSTROM, JOHN ELVESJÖ, Mattias Kuldkepp
  • Patent number: 9244170
    Abstract: A visual display includes hidden reference illuminators adapted to emit invisible light for generating corneo-scleral reflections on an eye watching a screen surface of the display. The tracking of such reflections and the pupil center provides input to gaze tracking. A method for equipping and an LCD with a reference illuminator are also provided. Also provides are a system and method for determining a gaze point of an eye watching a visual display that includes reference illuminators. The determination of the gaze point may be based on an ellipsoidal cornea model.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: January 26, 2016
    Assignee: Tobii Technology AB
    Inventors: Peter Blixt, Anders Hoglund, Bengt Rehnstrom, John Elvesjö, Mattias Kuldkepp
  • Patent number: 9213404
    Abstract: The present invention relates to control of a computer system, which includes a data processing unit, a display and an eye tracker adapted to register a user's gaze point with respect to the display. The data processing unit is adapted to present graphical information on the display, which includes feedback data reflecting the user's commands entered into the unit. The data processing unit is adapted to present the feedback data such that during an initial phase, the feedback data is generated based on an absolute position of the gaze point. An imaging device of the system is also adapted to register image data representing movements of a body part of the user, and to forward a representation of the image data to the data processing unit. Hence, during a phase subsequent to the initial phase, the data is instead generated based on the image data.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: December 15, 2015
    Assignee: TOBII TECHNOLOGY AB
    Inventors: John Elvesjö, Anders Olsson, Johan Sahlén
  • Patent number: 9179838
    Abstract: An eye/gaze tracker with first and second light sources each configured to illuminate an eye of a subject and controlled to selectively emit light towards the eye in such a manner that within an operation sequence the eye is illuminated by the first light source during at least one first interval and by the second light source during at least one second interval. An image sensor has a plurality of photodiodes each of which is associated with first and second charge storages configured to store electric charges based on an amount of light reaching the photodiode. At least one switch of the image sensor is controlled such that the electric charges are stored in the first charge storage as a result of the illumination during the at least one first interval and in the second charge storage as a result of the illumination during the at least one second interval.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: November 10, 2015
    Assignee: Tobii Technology AB
    Inventors: Marten Skogo, Henrik Jonsson, John Elvesjo
  • Patent number: 9147248
    Abstract: A gaze tracking device is calibrated to a display unit by presenting graphical guide objects on an active area thereof, which designate distinctive features reflecting how the device may be positioned n a first side of a frame of the display unit. User commands move the objects on the display's active area in a first direction parallel to the first side of the frame. A position value designating an actual position for the gaze tracking device on the first side of the frame is assigned based on a current position of the graphical guide objects on the active area. An offset value is calculated based on the assigned position value and a known measure of the active area. The offset value represents a distance in the first direction between a well-defined point of the gaze tracking device and a well-defined point of the first side.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: September 29, 2015
    Assignee: TOBII TECHNOLOGY AB
    Inventors: Anders Kaplan, Gunnar Troili, John Elvesjo