Using Photodetector Patents (Class 351/210)
  • Patent number: 11126260
    Abstract: Embodiments of the present disclosure disclose a control method and apparatus of an intelligent device, and a storage medium. The control method includes: determining a state of a target function to acquire target function state information; detecting an operation of a user gazing at a local screen to acquire gazing operation information; and controlling the state of the target function to switch according to the gazing operation information and the target function state information.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: September 21, 2021
    Assignee: BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Lu Qian, Gang Zhang, Shasha Wang, Mingwei Li, Yibo Chen, Fenglei Wang
  • Patent number: 11067810
    Abstract: A head-mounted display apparatus according to an aspect of the present disclosure includes an imaging light generating device, a first deflection element including a first deflection section configured to deflect imaging light in a first direction and a second deflection section configured to deflect the imaging light in a second direction, a first diffraction element, and a second diffraction element. When a plane surrounded by the principal ray passing plane, the first principal ray, the second principal ray, and the first deflection section is taken as a first plane, and a plane surrounded by the second deflection section, the first principal ray, the second principal ray, and the first diffraction element is taken as a second plane, the first plane overlaps with at least a part of the second plane when viewed from the third direction and does not overlap with the second plane when viewed from the fourth direction.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: July 20, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Masatoshi Yonekubo, Mitsutaka Ide
  • Patent number: 11068056
    Abstract: Apparatus, systems and methods configured for eye tracking with slippage detection and correction are disclosed. In one example, a method comprises: obtaining a first image and a second image of a person's eye, with an imaging sensor; determining a position relationship between an eyeball center of the eye and the imaging sensor based on the first image and the second image.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: July 20, 2021
    Inventor: Xiaochun Nie
  • Patent number: 11064881
    Abstract: A method for predicting abnormal eye convergence in a human or animal subject may involve tracking eye movement of at least one eye of the subject to generate eye tracking data for the subject and using the eye tracking data to predict whether the subject has abnormal eye convergence. A method for diagnosing a brain injury in a human or animal subject may involve tracking eye movement of at least one eye of the subject to generate eye tracking data for the subject, using the eye tracking data to predict whether the subject has abnormal eye convergence, and predicting whether a brain injury has occurred in the subject, based on the prediction of whether the subject has abnormal eye convergence.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: July 20, 2021
    Assignee: HENNEPIN HEALTHCARE SYSTEM, INC
    Inventors: Uzma Samadani, Abdullah Bin Zahid
  • Patent number: 11045083
    Abstract: An apparatus for imaging an interior of an eye includes a light sensitive sensor, a plurality of light emitters (LEs) capable of outputting light, a plurality of nonvisible light emitters (NV-LEs) capable of outputting nonvisible light, and a controller. The controller is coupled to the plurality of LEs, the plurality of NV-LEs, and the light sensitive sensor, and the controller implements logic that when executed by the controller causes the apparatus to perform operations. The operations include illuminating the eye with the nonvisible light from the plurality of NV-LEs, and determining an amount of reflection of the nonvisible light from the eye for each of the NV-LEs in the plurality of NV-LEs. The operations also include illuminating the eye with selected one or more of the LEs in the plurality of LEs, and capturing, with the light sensitive sensor, a sequence of images of the interior of the eye while the eye is illuminated with the light from the LEs.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: June 29, 2021
    Assignee: Verily Life Sciences LLC
    Inventors: Corey Walsh, Eliezer Glik, Sam Kavusi
  • Patent number: 11051005
    Abstract: A virtual reality device and the operation method of virtual reality device, and the method includes: the virtual reality device displays an image content according to a corresponding viewing angle of a user; and when the time of virtual reality device detects that the viewing elevation angle is greater than a predetermined angle for a time period which exceeds a predetermined time period, the virtual reality device enters a locking mode; in the locking mode, the virtual reality device displays the image content with a fixed main field, and the virtual reality device constrains the viewing angle of the image content from the movement or rotation of the user. The present invention can determine whether to enter the locking mode according to a preset condition, and provide the main image content of the fixed field of view in the locking mode in order to achieve user convenience and save power.
    Type: Grant
    Filed: November 21, 2018
    Date of Patent: June 29, 2021
    Assignee: SUZHOU RAKEN TECHNOLOGY LIMITED
    Inventors: Che-Chia Ho, Chia-Wei Lin
  • Patent number: 11042994
    Abstract: A system for determining the gaze direction of a subject includes a camera, a computing device and a machine-readable instruction set. The camera is positioned in an environment to capture image data of head of a subject. The computing device is communicatively coupled to the camera and the computing device includes a processor and a non-transitory computer-readable memory. The machine-readable instruction set is stored in the non-transitory computer-readable memory and causes the computing device to: receive image data from the camera, analyze the image data using a convolutional neural network trained on an image dataset comprising images of a head of a subject captured from viewpoints distributed around up to 360-degrees of head yaw, and predict a gaze direction vector of the subject based upon a combination of head appearance and eye appearance image data from the image dataset.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: June 22, 2021
    Assignee: TOYOTA RESEARCH INSTITUTE, INC.
    Inventors: Simon Stent, Adria Recasens, Antonio Torralba, Petr Kellnhofer, Wojciech Matusik
  • Patent number: 11031120
    Abstract: A method of at-home monitoring of eye conditions using a head mounted display that is capable of establishing a visual model associated with a patient. The visual model may include data related to a quality of the patient's vision. The patient may use the system to establish a visual model periodically, such as daily, and the system may compare the visual model to previous visual models and send an alert to the patient's physician if changes meeting a given criteria are detected. This may allow the physician to immediately take steps to save the patient's eyesight where a delay in treatment may result in vision loss.
    Type: Grant
    Filed: January 17, 2021
    Date of Patent: June 8, 2021
    Assignee: RAYTRX, LLC
    Inventors: Richard C. Freeman, Michael H. Freeman, Mitchael C. Freeman, Chad Boss, Jordan Boss
  • Patent number: 11009699
    Abstract: An eye tracker comprises a light source; a detector; and first and second waveguides. The first waveguide comprises an input coupler for coupling source light into a waveguide path and a first grating for coupling light out of the waveguide path onto an eye. The second waveguide comprises a second grating for coupling light reflected from the eye into a waveguide path and an output coupler for coupling light out of the waveguide path onto the detector. The second grating is optically configured for imaging the eye onto the detector.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: May 18, 2021
    Assignee: DigiLens Inc.
    Inventors: Milan Momcilo Popovich, Jonathan David Waldern, Alastair John Grant
  • Patent number: 11003936
    Abstract: There is provided a method, system, and non-transitory computer-readable storage medium for controlling an eye tracking system to optimize eye tracking performance under different lighting conditions, by obtaining a first image captured using a camera associated with the eye tracking system, the first image comprising at least part of an iris and at least part of a pupil of an eye illuminated by an illuminator associated with the eye tracking system at a current power of illumination selected from a set of predetermined power levels; determining a contrast value between an the iris and the pupil in the image; and, if the contrast value deviates less than a preset deviation threshold value from a preset minimum contrast value, setting the current power of illumination of the illuminator to the other predetermined power level in the set of predetermined power levels.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: May 11, 2021
    Assignee: Tobii AB
    Inventors: Viktor Åberg, Anna Redz, Niklas Ollesson, Dineshkumar Muthusamy, Magnus Ivarsson
  • Patent number: 10996747
    Abstract: Validity of a line-of-sight direction detected by a gaze point detection unit is determined by using a positional difference that is a calibration value used for detecting a position of a corneal curvature center. Therefore, it is possible to easily and effectively determine the validity of the line-of-sight direction without additionally using a system or the like for detecting the validity of the line-of-sight direction. Consequently, it is possible to accurately detect line-of-sight directions of various subjects, such as a subject whose left and right eyeballs have different corneal curvature radii or a subject whose line-of-sight directions of left and right eyeballs are largely different due to the influence of strabismus or the like.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: May 4, 2021
    Assignee: JVCKENWOOD Corporation
    Inventor: Masaru Ninomiya
  • Patent number: 10990756
    Abstract: A method, computer program product, and visual display apparatus include a processor(s) obtaining data indicating that a user wearing the apparatus (which included an image capture device, and a projection device, communicatively coupled to the processor(s)), perceives displayed text with consistent character differences. The processor(s) obtains, from the image capture device, an image of a visual display within a visual range of the image capture device; the image includes textual elements. Based on the data, the processor(s) transforms the image into the new image that includes the textual elements with pre-defined character substitutions, based on the consistent character differences. The processor(s) displays, via the projection device, the new image, to the user, wherein based on viewing the new image, the user views the textual elements without the consistent character differences.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: April 27, 2021
    Assignee: International Business Machines Corporation
    Inventors: Dhandapani Shanmugam, Manjunatha D., Yethish G. Venkataramanachari, Siddique M. Adoni, Suman Mitra
  • Patent number: 10990755
    Abstract: A method, computer program product, and visual display apparatus include a processor(s) obtaining data indicating that a user wearing the apparatus (which included an image capture device, and a projection device, communicatively coupled to the processor(s)), perceives displayed text with consistent character differences. The processor(s) obtains, from the image capture device, an image of a visual display within a visual range of the image capture device; the image includes textual elements. Based on the data, the processor(s) transforms the image into the new image that includes the textual elements with pre-defined character substitutions, based on the consistent character differences. The processor(s) displays, via the projection device, the new image, to the user, wherein based on viewing the new image, the user views the textual elements without the consistent character differences.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: April 27, 2021
    Assignee: International Business Machines Corporation
    Inventors: Dhandapani Shanmugam, Manjunatha D., Yethish G. Venkataramanachari, Siddique M. Adoni, Suman Mitra
  • Patent number: 10973409
    Abstract: An objective testing of vergence dysfunction comprising the steps of: providing a head mounted goggle based stimulus generating eye tracking unit to the subject; presenting visual stimulus to the subject, wherein the visual stimulus is in the head mounted goggle based system and forms the optical target stimulus for at least one vergence test; obtaining objective physiologic response of the subject from the head mounted goggle unit based upon each of the visual stimulus presented to the subject in each test; and using the objective physiologic responses to diagnose the presence of vergence dysfunction. On objective portable head mounted goggle based stimulus generating eye tracking unit for vergence testing is discloses as is a method of method of vergence recovery convalescence.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: April 13, 2021
    Assignee: NEURO KINETICS
    Inventors: Alexander D. Kiderman, Robin C. Ashmore
  • Patent number: 10966605
    Abstract: Methods and systems for assessing a health state of a person via eye movement-driven biometric systems are provided. Examples of the health states that it would be possible to detect with such a system are but not limited to brain injuries (e.g., concussions), dementia, Parkinson's disease, post-traumatic stress syndrome, schizophrenia, fatigue, cybersickness, autism, Bipolar Disorder and other health conditions that manifest themselves in abnormal behavior of the human visual system. Described methods and systems can also detect influence of alcohol and/or drugs. The system extracts biometric template of a person by deriving features from the captured eye movement signal. The system may compare the difference between previous healthy state of a tested person and newly captured template or an averaged biometric template created from the records of multiple healthy people state of multiple people and a newly captured template from a person who needs to be tested.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: April 6, 2021
    Assignee: Texas State University—San Marcos
    Inventor: Oleg V. Komogortsev
  • Patent number: 10948984
    Abstract: A method for calibrating an eye tracker includes drawing the attention of a user to a calibration target. At least one positioning camera and at least one computer is employed to determine the position of the calibration target and the eye tracker coordinate system relative to each other. The calibration parameters of a gaze line are determined, to the calibration target, in a first coordinate system. The above steps are repeated, thereby providing a desired part of a gaze range and calibration targets distribution. The calibration data is then stored. A method of calibrating and using an eye tracker and a method of calibrating an eye tracker for use with a display are also provided.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: March 16, 2021
    Assignee: CONTROLRAD SYSTEMS INC.
    Inventors: Haim Melman, Nir Eden
  • Patent number: 10942564
    Abstract: A method for predicting eye movement in a head mounted display (HMD). The method including tracking movement of an eye of a user with a gaze tracking system disposed in the HMD at a plurality of sample points. The method including determining velocity of the movement based on the movement of the eye. The method including determining that the eye of the user is in a saccade upon the velocity reaching a threshold velocity. The method including predicting a landing point on the display of the HMD corresponding to a direction of the eye for the saccade.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: March 9, 2021
    Assignee: Sony Interactive Entertainment Inc.
    Inventors: Andrew Young, Javier Fernandez Rico
  • Patent number: 10936056
    Abstract: A method of tracking an eye of a user includes generating infrared light over an eye tracking period, scanning the infrared light over the eye, and detecting reflections of the infrared light from the eye. Shifts in a position of a wearable heads-up display (WHUD) worn on the head of the user are detected during at least a portion of the eye tracking period. Glints are identified from the detected reflections of the infrared light. A drift in a glint center position of an identified glint relative to a glint space is determined based on a detected shift in position of the WHUD corresponding in space to the identified glint. The glint center position is adjusted to compensate for the drift. The adjusted glint center position is transformed from the glint space to a gaze position in a display space in a field of view of the eye.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: March 2, 2021
    Assignee: Google LLC
    Inventors: Idris S. Aleem, Andrew S. Logan, Mayank Bhargava
  • Patent number: 10932695
    Abstract: This disclosure relates to systems and/or methods for detection of eye blinking using an active contact lens with multiple sensors and detecting orientation of the active contact lens.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: March 2, 2021
    Assignee: Verily Life Sciences LLC
    Inventors: Nathan Pletcher, Eric Teller, Babak Amirparviz
  • Patent number: 10928900
    Abstract: In one aspect, a device includes a body, an arm, a camera, a support arm, an indicator support, and a plurality of indicators. The body is configured to mount to an eyeglass arm. The arm extends from the body. The camera is coupled to the arm and configured to capture images of at least one eye of a user. The support arm extends from the body. The indicator support is coupled to the support arm such that, when the body is mounted to the eyeglasses and the user is wearing the eyeglasses, the indicator support is positioned in the user's field of view. The plurality of indicators are coupled to the indicator support.
    Type: Grant
    Filed: April 26, 2019
    Date of Patent: February 23, 2021
    Assignee: TECHNOLOGY AGAINST ALS
    Inventors: Sandeep Rajaram Tungare, Milind Shrikrishna Gupte, Amitabh Patil, Bert Haberland
  • Patent number: 10902628
    Abstract: A method is provided for estimating the orientation of a user's eyes in a scene in a system-agnostic manner. The method approximates pose-invariant, user-independent feature vectors by transforming the input coordinate to a pose-invariant coordinate and then normalizing the data considering the statistical distributions of previously collected data used to create a learned mapping method. It then uses the learned mapping method to estimate the orientation of the user's eyes in the pose invariant coordinate system, and finalizes by transforming these to a world coordinate system.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: January 26, 2021
    Assignee: Mirametrix Inc.
    Inventors: Mohamad Kharboutly, Anh Tuan Nghiem, Nicolas Widynski
  • Patent number: 10891873
    Abstract: A method and apparatus for monitoring learning and an electronic device are provided. The method for monitoring learning includes: acquiring a class image of a class student; recognizing the class image to acquire characteristic data of the class student, where the characteristic data includes at least one of the following: facial characteristic data of the class student, visual characteristic data of the class student, and body characteristic data of the class student; and determining, based on the characteristic data of the class student, a class status of the class student. The listening status of a student learning via a computer and the Internet in a class can be effectively and accurately monitored, and an effective reference is provided for subsequent learning and teaching to further improve the learning or teaching process.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: January 12, 2021
    Assignee: BEIJING YIZHEN XUESI EDUCATION TECHNOLOGY CO., LTD.
    Inventors: Guowei Fu, Gang Xue, Yuemei Li, Shan An, Mingxiu Meng, Yujia Song, Yangang Feng, Xu Meng
  • Patent number: 10888263
    Abstract: A method for non-invasive video oculographic measurement of eye movements as diagnostic support for (early) detection of neuropsychiatric diseases, using an indicator for a visual stimulus and a camera for video recording. A position of the camera is kept constant in relation to the display and a face of a test person is continuously recorded, at least in parts. A recognition algorithm is started which creates an eye template in which an absolute position of the eye and a pupil of the eye are continuously recorded in the image. Furthermore, a reference range, especially around the eye, is defined and, after selecting a predefined measurement paradigm of the pupil are continuously recorded and analyzed at the end of the stimulus.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: January 12, 2021
    Assignee: THOMAS RECORDING GMBH
    Inventors: Uwe Thomas, Stefan Dowiasch
  • Patent number: 10882533
    Abstract: A drowsy driving management device includes: a processor configured to determine whether slow eye movement of a user occurs and whether there is no change in steering torque and to determine that the user drives while drowsy when the slow eye movement of the user occurs and when there is no change in the steering torque for a predetermined period of time; and a storage that stores information indicating whether the slow eye movement occurs and a result of determining whether there is no change in the steering torque.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: January 5, 2021
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Jin Kwon Kim, Byoung Joon Lee, Sam Yong Kim
  • Patent number: 10867391
    Abstract: Methods and systems are provided for tracking viewer engagement with a non-interactive display. Sensor data is obtained from one or more sensors, such as cameras, associated with a display device, and once a face is detected within the sensor data, a display sequence is initiated. The display sequence includes at least a first frame with a first visual feature and a second frame with a second visual feature. Using the sensor data obtained during presentation of the display sequence, viewer engagement with the sequence is tracked by determining eye movements and/or head movements. The detected eye movement and/or head movement is used to determine whether the person was actively engaged with the display sequence.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: December 15, 2020
    Assignee: ADOBE INC.
    Inventors: Max Gray Edell, David E. Benge
  • Patent number: 10867379
    Abstract: A method for optically inspecting a mold (10) for manufacturing ophthalmic lenses such as contact lenses for possible mold defects, including: generating a set of images of the mold (10) for different azimuthal illumination angles (?1, ?9) using an illumination system (20) and an imaging system (30), the latter being aligned such that its focal plane cuts through the mold (10) at a specific axial position along a center axis of the mold (10); generating a focal plane image by averaging pixelwise over the set of images after having masked out in each image those regions that include direct specular reflections from the mold (10); repeating the previous steps for one or a plurality of different axial positions of the focal plane such as to generate a plurality of different focal plane images; identifying one or more image features in the plurality of focal plane images indicative for a possible mold defect; determining for each identified image feature in which focal plane image the identified image feature app
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: December 15, 2020
    Assignee: Alcon Inc.
    Inventors: Fabian Etzold, Arno Florian Warken, Daniel Kiefhaber, Giovanni Campanelli
  • Patent number: 10839520
    Abstract: A system and method for using gaze information to extract visual attention information combined with computer derived local saliency information from medical images to (1) infer object and background cues from a region of interest indicated by the eye-tracking and (2) perform a medical image segmentation process. Moreover, an embodiment is configured to notify a medical professional of overlooked regions on medical images and/or train the medical professional to review regions that he/she often overlooks.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: November 17, 2020
    Assignee: The United States of America, as Represented by the Secretary, Department of Health & Human Services
    Inventors: Bradford J. Wood, Haydar Celik, Ulas Bagci, Ismail Baris Turkbey
  • Patent number: 10831270
    Abstract: A gaze tracking system, method, and computer product for tracking an eye gaze on a screen of a device including a single monocular camera, the system including measuring a rotation of a hinged plane of a display screen with respect to the eye gaze, combining the rotation with a three-dimensional movement of the camera, a position of the camera being constant with respect to the display screen, and estimating a point of gaze localization on the display screen using the single monocular camera as the input, in absence of a sensor, and without performing a display screen calibration.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: November 10, 2020
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Karan Ahuja, Kuntal Dey, Seema Nagar, Roman Vaculin
  • Patent number: 10789464
    Abstract: At least one image registering unit records at least one series of images representing a subject. A control unit controls an operation sequence for the at least one image registering unit in such a manner that a subsequent data processing unit receives a repeating sequence of image frames there from, wherein each period contains at least one image frame of a first resolution and at least one image frame of a second resolution being different from the first resolution. Based on the registered image frames, the data processing unit produces eye/gaze tracking data with respect to the subject.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: September 29, 2020
    Assignee: Tobii AB
    Inventors: Mattias Kuldkepp, Marten Skogo, Mattias Hanqvist, Martin Brogren, Dineshkumar Muthusamy
  • Patent number: 10788894
    Abstract: A method for active eye-tracking comprises pulsing on and off a plurality of infrared optical sources configured to emit infrared light with a narrow spectral linewidth toward an eye of a user, such that a pulse-on duration is less than a duration needed to fully thermalize each optical source. One or more shuttered optical sensors are configured to receive infrared light reflected off the eye of the user. The shuttered optical sensors are opened for a detection duration based on the pulse-on duration, the shuttered optical sensors. A conformation of the user's eye is indicated based on infrared light received at the shuttered optical sensor during the detection duration.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: September 29, 2020
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Raymond Kirk Price, Michael Bleyer, Denis Demandolx
  • Patent number: 10788683
    Abstract: A method of creating an optimized lens for an eye including positioning a fitting lens onto the eye. The fitting lens may have one or a plurality of indicia. The eye and fitting lens using a computing device. A data set may then be produced, the data set defined by a three-dimensional relationship between the fitting lens and the eye. The computing device or a remotely connected computing device may then analyze the data set to generate one or more modifications to the fitting lens. The computing device or remotely connected computing device may then transmit the data set and the one or more modifications to a printing device to create the optimized lens for the eye.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: September 29, 2020
    Inventor: Loren Rude
  • Patent number: 10786191
    Abstract: The invention provides the supporting system for neurological state assessment and neurological rehabilitation, especially within cognitive and/or speech dysfunction, characterized in that, the processing unit (PU) is integrated with the screen (S), which is equipped with the touch input sensors (TIS), said camera and light sources work within infrared radiation, wherein the infrared camera (IFC) is integrated with at least two infrared light sources (ILS). The infrared light sources (ILS) and the infrared camera (IFC) are formed into a movable component (MC) in the way that the infrared light sources (ILS) are located symmetrically and uniaxially on both sides of the infrared camera (IFC) in the movable component (MC). The movable component (MC) is connected with the processing unit (PU) through the screen (S). In another aspect the invention provides the method for supporting of neurological state assessment and neurological rehabilitation, especially within cognitive and/or speech dysfunctions.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: September 29, 2020
    Assignee: AssisTech Sp. z o.o.
    Inventors: Robert Kosikowski, Bartosz Kunka
  • Patent number: 10765312
    Abstract: In an embodiment of the disclosure, there is provided a handheld vision tester for vision self-testing by a user. The handheld vision tester comprises a touchscreen display, a control, and an interface port. The touchscreen display is configured to present different shapes, either statically or dynamically, to the user for the vision self-testing. One of the different shapes may be a modulated version of another similar shape displayed at the same time and includes a modulated edge. The control is configured to allow a user to trigger operations of the tester and allow the user to select one of the different shapes. The handheld vision tester is configured to determine results of the vision self-testing from the user selections and store the results in the handheld vision tester. The interface port is configured to transmit the stored results to a healthcare provider who uses the results to enhance treatment routines.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: September 8, 2020
    Assignee: Genentech, Inc.
    Inventors: Michael Bartlett, Yi-Zhong Wang
  • Patent number: 10762709
    Abstract: Provided is a an augmented reality providing device including: a sensing unit configured to sense a body part of a user; a display unit configured to display an image; a semi-transparent mirror unit disposed spaced from the display unit and configured to reflect light incident from the user to emit the reflected light to the user, and transmit light incident from the display unit to provide the transmitted light to the user; and a control unit configured to determine a position at which the image is displayed on the display unit based on the sensed body part.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: September 1, 2020
    Assignee: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Soon Ki Jung, Hak-Rin Kim, Gi-Sook Jung, Jae Seok Jang, Min-Kyu Park
  • Patent number: 10743759
    Abstract: The present invention relates to an optical coherence tomography method, comprising: providing a beam of imaging radiation from a radiation source of an optical coherence tomography apparatus; directing, using directing optics, the beam of imaging radiation towards a fundus of a human or animal eye; and receiving a reflected portion of the imaging radiation by the optical coherence tomography apparatus; wherein the method further comprises: providing, by a tracking camera, a tracking image of an image area covering at least a part of said fundus; analyzing the tracking image for detecting a displacement of the fundus; and adapting, at least dependent on the detected displacement, a direction of the beam of imaging radiation by actuating an optical correction unit of said direction optics; and in addition to said adapting of the direction of the beam of imaging radiation, adapting a location of the image area on said fundus imaged by the tracking camera at least dependent on the detected displacement.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: August 18, 2020
    Assignee: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO
    Inventors: Stefan Kuiper, Nicolaas Jan Doelman, Thomas Liebig, Willem Arjan Klop
  • Patent number: 10725539
    Abstract: Apparatus, systems and methods configured for eye tracking with slippage detection and correction are disclosed. In one example, a method comprises: obtaining a first image and a second image of a person's eye, with an imaging sensor; determining a position relationship between an eyeball center of the eye and the imaging sensor based on the first image and the second image.
    Type: Grant
    Filed: June 23, 2018
    Date of Patent: July 28, 2020
    Inventor: Xiaochun Nie
  • Patent number: 10725537
    Abstract: An eye tracking system comprises a structured light emitter, a camera assembly, and a controller. The structured light emitter illuminates a portion of an eye of a user with a dense structured light pattern. The dense structured light pattern produces a distorted illumination pattern on the portion of the eye. The camera assembly captures one or more images of the distorted illumination pattern that is associated with the portion of the eye. The controller estimates a position of the eye based on the captured one or more images and a model of the eye. The eye tracking system may be part of a head-mounted display.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: July 28, 2020
    Assignee: Facebook Technologies, LLC
    Inventors: Julian Iseringhausen, Robert Dale Cavin, Nicholas Daniel Trail, Douglas Robert Lanman
  • Patent number: 10722112
    Abstract: A tablet terminal 1A is a measurement apparatus for measuring a subject's eyelid position, and includes a display section 3 that generates a vertically long light emitting region to make a reflection image form on a corneal surface of the subject's eyeball, a camera 5 that images the reflection image formed by the display section 3, and an arithmetic circuit 7 that derives reflection image information concerning a size or position of the reflection image based on image data of the reflection image obtained by the camera 5, and measures the eyelid position based on the reflection image information.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: July 28, 2020
    Assignee: HAMAMATSU PHOTONICS K.K.
    Inventors: Kazutaka Suzuki, Yoshinori Matsui, Haruyoshi Toyoda, Munenori Takumi, Naotoshi Hakamata
  • Patent number: 10716468
    Abstract: A method and a device for stimulating accommodation of at least one eye of a test person. There is a reliable possibility for determining a set of ophthalmological data relating to at least one eye of the test person and particularly for measuring refractive error of the test person and for determining a corresponding optical correction. The device for determining a set of ophthalmological data relating to at least one eye of a test person, in particular a device for objectively determining refraction comprises: an accommodation stimulating device which is designed to project a virtual target having a spherical effect and having an adjustable cylindrical effect into the at least one eye of the test person; and a measuring device for determining ophthalmological data relating to the at least one eye of the test person.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: July 21, 2020
    Assignee: Rodenstock GmbH
    Inventors: Stephan Trumm, Gregor Esser
  • Patent number: 10702149
    Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of determining a pupillary distance. For example, a product may include one or more tangible computer-readable non-transitory storage media including computer-executable instructions operable to, when executed by at least one computer processor, enable the at least one computer processor to implement operations of measuring a pupillary distance between pupils of a user. The operations may include receiving a captured image comprising first and second reflections of a light of a light source, the first reflection comprising a reflection of the light from a first pupil of the user, and the second reflection comprising a reflection of the light from a second pupil of the user; and determining the pupillary distance based on locations of the first and second reflections in the captured image and an estimated distance between an image capturing device and pupils of the user, when the image is captured.
    Type: Grant
    Filed: May 10, 2016
    Date of Patent: July 7, 2020
    Assignee: 6 OVER 6 VISION LTD.
    Inventor: Ofer Limon
  • Patent number: 10698475
    Abstract: A virtual reality interaction method comprises: continuously acquiring image information in front of a user; recognizing a preset interactive object by recognizing a preset identifier in the image information, a surface of the preset interactive object having one or more of the preset identifiers; recognizing a hand action of the user according to the image information; and simulating an interactive action of the user on the preset interactive object in a virtual reality environment according to the hand action and a position of the preset interactive object. The virtual reality interaction method provided by the present disclosure can accurately simulate an interactive action of the user on a real object in a virtual reality environment, thereby improving user experience of virtual reality.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: June 30, 2020
    Assignee: HTC Corporation
    Inventors: Chi-Yin Choi, Zhongyang Zheng, Shuang Yang, Zhongqian Dong, Bo Wang, Yakun Wang, Tao Yang, Edward Yjhuei Chang, Alvin Graylin
  • Patent number: 10694938
    Abstract: The invention relates to a new type of measurement method for automatically recording and evaluating the Purkinje reflections of an eye in order to determine the malposition (decentration and tilt) of intraocular or natural lenses and to a device for applying said method. According to the invention, the eye is systematically illuminated from different directions and, by means of linear regression, the relative lens orientation is extracted from the position of the Pukinje reflections thus produced.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: June 30, 2020
    Assignee: JANUNTS HOLDING UG (HAFTUNGSBESCHRANKT)
    Inventors: Edgar Janunts, Dominic Putzu, Janine Van Bellen, Michael Möller, Achim Langenbucher
  • Patent number: 10685748
    Abstract: Systems and methods are provided for processing and storing eye-tracking data. A visual stimulus is provided to an experimental subject on a display. Eye-tracking data associated with the behavior of the experimental subject is acquired and stored while observing the visual stimulus on the display. The eye-tracking data is stored as primary data and secondary data, wherein the primary data is stored in an encrypted form using a secret key associated with the experimental subject. In response to a research request, the secondary data is transmitted for storage in a research database and, in response to a second research request authorized by the experimental subject, the primary data is transmitted for storage in the research database subsequent to decrypting the primary data using the secret key.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: June 16, 2020
    Assignee: EyeTech Digital Systems, Inc.
    Inventors: Robert C Chappell, Miles Manning, Sonal Kalbande
  • Patent number: 10664049
    Abstract: A method, computer readable medium, and system are disclosed for gaze tracking. The method includes the steps of receiving reflected light rays at an optical sensor, where all of the reflected light rays converge towards a rotational center of an eye and generating pattern data based on intersections of the reflected light rays at a surface of the optical sensor. A processor computes an estimated gaze direction of the eye based on the pattern data.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: May 26, 2020
    Assignee: NVIDIA Corporation
    Inventors: Joohwan Kim, Ward Lopes, David Patrick Luebke, Chengyuan Lin
  • Patent number: 10642028
    Abstract: A system for adjusting a position of a lens in a wearable device is provided. The system may include a wearable device and a processor. The wearable device may include a display, a lens movably disposed in front of the display, and an eye tracking device including an illuminator and an image sensor. The processor may receive data from the eye tracking device, and determine, based on the data, a first position of the eye of a user wearing the wearable device, where the position is relative to a second position which is fixed with respect to the lens. The processor may also be configured to determine a distance between the first position and the second position, and if the distance is greater than a first value, cause information to be presented to the user indicating that the lens should be moved to a more optimal position.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: May 5, 2020
    Assignee: Tobii AB
    Inventors: Pravin Rana, Daniel Tornéus
  • Patent number: 10634934
    Abstract: The invention provides a method for determining a geometrical parameter of an eye of a subject, such as for determining the position of a center of rotation of the subject's eye, such as for the purpose of personalizing the optical design of corrective ophthalmic lenses, wherein at least two images of the eye are captured with an image capture device while the subject looks in two different gaze directions, and on each image, the pupil and/or the iris of the eye are identified so that a geometrical parameter may be determined for determining a position of a center of rotation of the eye without requiring use of a reference accessory.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: April 28, 2020
    Assignee: ESSILOR INTERNATIONAL
    Inventors: Sylvain Chene, Romain Fayolle
  • Patent number: 10627900
    Abstract: An electronic system tracks a user's gaze to rapidly transport a cursor to a location within a focal region of the user's eye. The electronic system transports the cursor from an initial location across one or more displays to a new location in response to detecting one or more saccadic and/or vergence movements of the user's eye or in response to a signal indicating that the user desires to move the cursor to a new location within a focal region of the user's eye or eyes. In some embodiments, the electronic system moves the cursor to the new location along a trajectory wherein the cursor is visible along at least a portion of the trajectory, enabling the user to find the cursor more easily.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: April 21, 2020
    Assignee: GOOGLE LLC
    Inventors: Nelson G. Publicover, Lewis James Marggraff, Spencer James Connaughton
  • Patent number: 10627898
    Abstract: The invention relates to a method for a user to control a device. According to the invention, the method comprises the following steps:—identification of a device located in a viewing direction of the user (100) by means of analysis of at least one image obtained by an image sensor (111) and containing at least part of the user's (100) face; determination of an oral instruction; transmission of a command associated with the determined oral instruction to the device identified. The invention also relates to a control device (110) in which such a method can be carried out, as well as a system (110, 121, 122) and a motor vehicle (130) comprising such a device (110).
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: April 21, 2020
    Inventor: Achraf Ben-Hamadou
  • Patent number: 10618521
    Abstract: A system, including: one or more sensors included in an apparatus wearable by a vehicle operator to measure ocular muscle movement; and a computer that includes a processor and a memory, the memory storing instructions executable by the computer such that the computer is programmed to: receive data indicating ocular muscle movement from the wearable sensor; determine, using the measurement, a gaze direction of the operator; use the gaze direction to determine a level of operator attentiveness; and actuate a vehicle operation if the level of operator attentiveness is below a predetermined threshold.
    Type: Grant
    Filed: September 20, 2015
    Date of Patent: April 14, 2020
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventor: Devinder Singh Kochhar
  • Patent number: 10614303
    Abstract: Circuitry of a gaze/eye tracking system obtains one or more images of a left eye and one or more images a right eye, determines a gaze direction of the left eye based on at least one obtained image of the left eye, determines a gaze direction of the right eye based on at least one obtained image of the right eye, determines a first confidence value based on the one or more obtained images of the left eye, determines a second confidence value based on the one or more obtained images of the right eye, and determines a final gaze direction based at least in part on the first confidence value and the second confidence value. The first and second confidence values represent indications of the reliability of the determined gaze directions of the left eye and the right eye, respectively. Corresponding methods and computer-readable media are also provided.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: April 7, 2020
    Assignee: Tobii AB
    Inventors: Andreas Klingström, Mattias Kuldkepp, Mårten Skogö