SYSTEMS AND METHODS USING VIRTUAL REALITY OR AUGMENTED REALITY ENVIRONMENTS FOR THE MEASUREMENT AND/OR IMPROVEMENT OF HUMAN VESTIBULO-OCULAR PERFORMANCE
First Claim
1. A vestibulo-ocular performance measuring device wherein:
- the device is configured for measuring a human physiologic vestibulo-ocular performance characteristic selected from the group of;
vestibulo-ocular reflex;
dynamic visual acuity;
dynamic visual stability;
kinetic visual acuity;
retinal image stability; and
foveal fixation stability; and
the device comprises;
an eye orientation sensor wherein;
the eye orientation sensor is attachable to a person'"'"'s head;
the eye orientation sensor comprises a video camera; and
the eye orientation sensor senses vertical movement and horizontal movement of at least one eye;
a head orientation sensor wherein;
the head orientation sensor is attachable to the person'"'"'s head;
the head orientation sensor senses pitch and yaw of the person'"'"'s head wherein pitch represents a rotation about a first axis representing up and down movement of the person'"'"'s face when the rear of the person'"'"'s head moves in the opposite direction and yaw represents horizontal movement of the face when looked at from the front about a second axis substantially aligned with the spine and perpendicular to the first axis; and
the head orientation sensor senses pitch and yaw in a range of frequencies between 0.01 Hertz and 15 Hertz;
the head orientation sensor comprises a micro-electro-mechanical system integrated circuit comprising a module selected from the group consisting of an accelerometer, a magnetometer, and a gyroscope;
an electronic circuit wherein;
the electronic circuit comprises a battery, a central processing unit, and a memory unit;
the electronic circuit is responsive to horizontal and vertical eye movement information received from the eye orientation sensor;
the electronic circuit is responsive to pitch and yaw information received from the head orientation sensor;
the electronic circuit uses a Fourier transform to generate a vertical gain signal and a vertical phase signal in response to the vertical eye movement information and the pitch information; and
the electronic circuit uses a Fourier transform to generate a horizontal gain signal and a horizontal phase signal in response to the horizontal eye movement information and the yaw information; and
a display wherein;
the display is attachable to the person'"'"'s head.
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Accused Products
Abstract
A system and method for using a virtual reality or an augmented reality environment for the measurement and/or improvement of human vestibulo-ocular performance can be implemented by combining a video camera based eye orientation sensor, a head orientation sensor, a display, and an electronic circuit that connects the eye sensor, head sensor, and display. The system and method can be operated in the range of frequencies between 0.01 Hertz and 15 Hertz. The system and method can use a Fourier transform to compute a gain and a phase. The system and method can be used for measuring vestibulo-ocular reflex, dynamic visual acuity, dynamic visual stability, kinetic visual acuity, retinal image stability, or foveal fixation stability in a non-clinical setting. The system and method can be completely portable, head-worn, and self-contained.
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Citations
24 Claims
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1. A vestibulo-ocular performance measuring device wherein:
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the device is configured for measuring a human physiologic vestibulo-ocular performance characteristic selected from the group of; vestibulo-ocular reflex; dynamic visual acuity; dynamic visual stability; kinetic visual acuity; retinal image stability; and foveal fixation stability; and the device comprises; an eye orientation sensor wherein; the eye orientation sensor is attachable to a person'"'"'s head; the eye orientation sensor comprises a video camera; and the eye orientation sensor senses vertical movement and horizontal movement of at least one eye; a head orientation sensor wherein; the head orientation sensor is attachable to the person'"'"'s head; the head orientation sensor senses pitch and yaw of the person'"'"'s head wherein pitch represents a rotation about a first axis representing up and down movement of the person'"'"'s face when the rear of the person'"'"'s head moves in the opposite direction and yaw represents horizontal movement of the face when looked at from the front about a second axis substantially aligned with the spine and perpendicular to the first axis; and the head orientation sensor senses pitch and yaw in a range of frequencies between 0.01 Hertz and 15 Hertz; the head orientation sensor comprises a micro-electro-mechanical system integrated circuit comprising a module selected from the group consisting of an accelerometer, a magnetometer, and a gyroscope; an electronic circuit wherein; the electronic circuit comprises a battery, a central processing unit, and a memory unit; the electronic circuit is responsive to horizontal and vertical eye movement information received from the eye orientation sensor; the electronic circuit is responsive to pitch and yaw information received from the head orientation sensor; the electronic circuit uses a Fourier transform to generate a vertical gain signal and a vertical phase signal in response to the vertical eye movement information and the pitch information; and the electronic circuit uses a Fourier transform to generate a horizontal gain signal and a horizontal phase signal in response to the horizontal eye movement information and the yaw information; and a display wherein; the display is attachable to the person'"'"'s head. - View Dependent Claims (2, 3)
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4. A portable eye response measuring system configured for measuring a human physiologic vestibulo-ocular performance characteristic selected from the group of:
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vestibulo-ocular reflex; dynamic visual acuity; dynamic visual stability; kinetic visual acuity; retinal image stability; and foveal fixation stability, the system comprising; an eye orientation sensor wherein; the eye orientation sensor is attachable to a person'"'"'s head; the eye orientation sensor comprises a video camera; and the eye orientation sensor senses movement of at least one eye wherein the eye movement is selected from the group comprising vertical eye movement and horizontal eye movement; a head orientation sensor wherein; the head orientation sensor is attachable to a person'"'"'s head; the head orientation sensor senses movement of the person'"'"'s head wherein the head movement is selected from the group comprising pitch movement and yaw movement wherein pitch represents a rotation about a first axis representing up and down movement of the person'"'"'s face when the rear of the person'"'"'s head moves in the opposite direction and yaw represents horizontal movement of the face when looked at from the front about a second axis substantially aligned with the spine and perpendicular to the first axis; and the head orientation sensor senses movement in a range of frequencies that comprises at least one frequency between 0.01 Hertz and 15 Hertz; the head orientation sensor comprises a micro-electro-mechanical system integrated circuit comprising a device selected from the group consisting of an accelerometer, a magnetometer, and a gyroscope; and an electronic circuit wherein; the electronic circuit comprises a central processing unit and a memory unit; the electronic circuit is responsive to the movement information received from the eye orientation sensor; the electronic circuit is responsive to the movement information received from the head orientation sensor; and the electronic circuit generates a signal selected from the group comprising a phase signal and a gain signal in response to eye movement information received from the eye orientation sensor and head movement information received from the head orientation sensor; and a display wherein; the display is attachable to the person'"'"'s head. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A vestibulo-ocular performance measuring method, the method comprising the steps of:
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electronically sensing changes in eye orientation wherein; the eye orientation changes are sensed by a video camera in a portable device; and the eye orientation changes are selected from the group comprising vertical eye movement and horizontal eye movement; electronically sensing changes in head orientation wherein; the head orientation changes are sensed by the portable device; the head orientation changes are selected from the group consisting of pitch movement and yaw movement; the head orientation changes are sensed in at least one frequency between 0.01 Hertz and 15 Hertz; and head orientation sensing comprises the use of a device selected from the group consisting of an accelerometer, a magnetometer, and a gyroscope; comparing the eye orientation and head orientation information using an electronic circuit wherein; the electronic circuit comprises a central processing unit and a memory unit; the electronic circuit uses a Fourier transform to generate a signal selected from the group consisting of a phase signal and a gain signal in response to the eye orientation changes and the head orientation changes; displaying a computer-generated image wherein; the image is presented on a display on the portable device; and measuring a human physiologic vestibulo-ocular performance characteristic selected from the group of; vestibulo-ocular reflex; dynamic visual acuity; dynamic visual stability; kinetic visual acuity; retinal image stability; and foveal fixation stability. - View Dependent Claims (21, 22, 23, 24)
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Specification