US4528989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screening method for monitoring physiological variables
Assignee: Individual
•
Filing: 1982-10-29
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Granted: 1985-07-16
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Expires: 2002-10-29
Abstract
Abstract A screening method and apparatus suitable for diagnosing dyslexia which includes a television camera for detecting reflected light to track eye movements in response to projected visual stimuli. The loci of said eye movements are superimposed over the visual stimuli on a TV monitor and also recorded. In addition, corresponding brain wave activity can be scanned and correlated with the eye movements.
Inventors
- 👤 Lee S. Weinblatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:45
CPC Classifications
A; A61; A61B; A61B3/00; A61B3/10; A61B3/113; A61B5/00; A61B5/16; A61B5/163; A61B5/24; A61B5/316; A61B5/369; A61B5/377; A61F; A61F9/00; A61F2009/0035
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
128 words
A screening method for monitoring physiological variables of a test subject which is suitable for diagnosing dyslexia including the steps of: (a) positioning the head of the test subject utilizing a head movement restraint; (b) presenting an array of visual stimuli within the test subject's field of view; (c) tracking eye movement of the test subject as targeted upon the stimuli using reflected light rays from the eye of the test subject with said reflected light rays providing a pattern of eye movements; (d) superimposing the locus of said eye movements upon the visual stimuli; (e) analyzing said eye movement patterns as simultaneously registered on the visual stimuli; and (f) evaluating deviations of said eye movement patterns as responsive to discrete stimuli in said array for diagnosing dyslexia.
Claim 2
Dependent Claim
128 words
A screening method for monitoring physiological variables of a test subject which is suitable for diagnosing dyslexia including the steps of: (a) positioning the head of the test subject utilizing a head movement restraint; (b) presenting an array of visual stimuli within the test subject's field of view; (c) tracking eye movement of the test subject as targeted upon the stimuli using reflected light rays from the eye of the test subject with said reflected light rays providing a pattern of eye movements; (d) superimposing the locus of said eye movements upon the visual stimuli; (e) analyzing said eye movement patterns as simultaneously registered on the visual stimuli; and (f) evaluating deviations of said eye movement patterns as responsive to discrete stimuli in said array for diagnosing dyslexia.
Claim 3
Dependent Claim
27 words
A screening method as claimed in claim 1 further including the step of: (g) concomitantly scanning brain wave activity for neurological responses corresponding to the viewed stimuli.
Claim 4
Dependent Claim
38 words
A screening method as claimed in claim 2 wherein the brain wave activity is scanned using electroencephalographic apparatus for discerning differences between the brain's left and right hemispherical lobes as a measure of the test subject's cognitive processes.
Claim 5
Dependent Claim
25 words
A screening method as claimed in claim 2 wherein the reflected light rays from the test subject's eyes are detected by a concealed television camera.
Claim 6
Dependent Claim
25 words
A screening method as claimed in claim 4 wherein the reflected light rays are transmitted by a fiber optics collecting tube to the television camera.
Claim 7
Dependent Claim
41 words
A screening method as claimed in claim 4 further including the step of: (h) calibrating a variable focal length lens of the television camera to compensate for corneal aberrations of the test subject and corresponding deviations in the reflected light rays.
Claim 8
Dependent Claim
27 words
A screening method as claimed in claim 4 further including the step of: (h) monitoring head movement of the test subject to eliminate erroneous eye movement readings.
Claim 9
Dependent Claim
26 words
A screening method as claimed in claim 7 wherein the array of visual stimuli originate from a prerecorded videotape and are presented on a television screen.
Claim 10
Dependent Claim
34 words
A screening method as claimed in claim 8 wherein the eye movement are registered with the stimuli to provide a superimposed image by synchronizing and combining output pulses from the videotape and television camera.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-15 | 1989-01-14 | 1989-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-15 | 1993-01-14 | 1993-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-15 | 1997-01-14 | 1997-07-16 | $7700.00 | Window Closed / Lapsed |