# US 2021/0342001 A1 · Eye movement detecting device, electronic device and system

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- Number: US 2021/0342001 A1
- Document ID: US20210342001A1
- Status: Published application
- Kind: A1
- Application number: 17/375,097
- Filed: 2021-07-14
- Published: 2021-11-04
- Earliest claimed: 2018-03-19
- Assignees: Kabushiki Kaisha Toshiba
- Applicants: Kabushiki Kaisha Toshiba
- Inventors: Hiroaki KOMAKI
- Web page: https://patentgrep.com/patent/US20210342001A1

## CPC

- G06F 3/013: {Eye tracking input arrangements (G06F3/015 takes precedence)}
- A61B 5/1114: {Tracking parts of the body}
- A61B 5/297: for electrooculography [EOG]: for electroretinography [ERG]
- A61B 5/315: for electrooculography [EOG]; for electroretinography [ERG]
- A61B 5/398: Electrooculography [EOG], e.g. detecting nystagmus; Electroretinography [ERG]
- A61B 5/6803: {Head-worn items, e.g. helmets, masks, headphones or goggles}
- G06F 1/163: {Wearable computers, e.g. on a belt}
- G06F 3/011: {Arrangements for interaction with the human body, e.g. for user immersion in virtual reality (blind teaching G09B21/00)}
- G06F 3/015: {Input arrangements based on nervous system activity detection, e.g. brain waves [EEG] detection, electromyograms [EMG] detection, electrodermal response detection}
- H04N 13/344: with head-mounted left-right displays
- A61B 2562/0209: Special features of electrodes classified in A61B5/24, A61B5/25, A61B5/283, A61B5/291, A61B5/296, A61B5/053
- G02B 27/0172: {characterised by optical features}
- G02B 2027/0134: {of stereoscopic type}
- G02B 2027/0178: {Eyeglass type (eyeglass details G02C)}
- G06Q 10/087: Inventory or stock management, e.g. order filling, procurement or balancing against orders
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR

## Abstract

According to one embodiment, an eye movement detecting device comprises first, second, third, fourth and fifth electrodes. A line connecting the first and the third electrodes passes through the right eye and a line connecting the second and the fourth electrodes passes through the left eye on at least one of a front view, a plan view or a side view. A distance between the fifth and the first electrodes is equal to a distance between the fifth and the second electrodes. A distance between the fifth and the third electrodes is equal to a distance between the fifth and the fourth electrodes. The detector respectively detects a horizontal movement of the right eye and a horizontal movement of the left eye.

## Claims

### Claim 1

A wearable device comprising:
a detector configured to detect a convergence angle at which a line of sight of a right eye of a user wearing the wearable device and a line of sight of a left eye of the user intersect; and
a display configured to display a first binocular augmented reality image and a second binocular augmented reality image, wherein
the first binocular augmented reality image includes a first right image and a first left image with a first interval between the first right image and the first left image when the detector detects a first convergence angle,
the first interval is related to the first convergence angle,
the second binocular augmented reality image includes a second right image and a second left image with a second interval between the second right image and the second left image when the detector detects a second convergence angle,
the second interval is related to the second convergence angle,
the second convergence angle is different from the first convergence angle,
the second binocular augmented reality image is different from the first binocular augmented reality image,
the detector is configured to detect the first convergence angle when the use looks at a first distance,
the detector is configured to detect the second convergence angle when the use looks at a second distance,
a display position of the first binocular augmented reality image is based on the first distance, and
a display position of the second binocular augmented reality image is based on the second distance.

### Claim 2

A display method for a wearable device comprising a detector configured to detect a convergence angle at which a line of sight of a right eye of a user wearing the wearable device and a line of sight of a left eye of the user intersect, the display method comprising:
displaying a first binocular augmented reality image including a first right image and a first left image with a first interval between the first right image and the first left image when the detector detects a first convergence angle; and
displaying a second binocular augmented reality image including a second right image and a second left image with a second interval between the second right image and the second left image when the detector detects a second convergence angle, wherein
the first interval is related to the first convergence angle,
the second interval is related to the second convergence angle,
the second convergence angle is different from the first convergence angle,
the second binocular augmented reality image is different from the first binocular augmented reality image,
the first convergence angle is detected when the use looks at a first distance,
the second convergence angle is detected when the use looks at a second distance,
a display position of the first binocular augmented reality image is based on the first distance, and
a display position of the second binocular augmented reality image is based on the second distance.

### Claim 3

A system comprising:
a wearable device; and
a mobile terminal configured to send a binocular augmented reality image to the wearable device, wherein
the binocular augmented reality image includes a right image and a left image; and
the wearable device comprises:
a detector configured to detect a convergence angle at which a line of sight of a right eye of a user wearing the wearable device and a line of sight of a left eye of the user intersect; and
a display configured to display a first binocular augmented reality image and a second binocular augmented reality image, wherein
the first binocular augmented reality image includes a first right image and a first left image with a first interval between the first right image and the first left image when the detector detects a first convergence angle,
the first interval is related to the first convergence angle,
the second binocular augmented reality image includes a second right image and a second left image with a second interval between the second right image and the second left image when the detector detects a second convergence angle,
the second interval is related to the second convergence angle,
the second convergence angle is different from the first convergence angle,
the second binocular augmented reality image is different from the first binocular augmented reality image,
the detector is configured to detect the first convergence angle when the use looks at a first distance,
the detector is configured to detect the second convergence angle when the use looks at a second distance,
a display position of the first binocular augmented reality image is based on the first distance, and
a display position of the second binocular augmented reality image is based on the second distance.