Patent US5311879A successfully refreshed from Google Patents.
US5311879A
Expired / Lapsed
US
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Medical diagnostic apparatus utilizing line-of-sight detection
Assignee: ATR AUDITORY AND VISUAL PERCEPTION RESEARCH LABORATORIES
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Filing: 1992-12-18
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Granted: 1994-05-17
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Expires: 2012-12-18
Abstract
Abstract In a medical diagnostic apparatus utilizing line-of-sight detection, targets are successively presented from different angles to the subject by a target presenting apparatus, eye movement of the subject while the subject is gazing at the target is detected by an eye movement detecting portion, the head movement of the subject is detected by a head movement detecting portion, and in response to the detection outputs, the spatial movement of the line-of-sight, rotation velocity component and translational velocity component of the head movement as well as the velocity component of the eye movement are calculated by a calculating portion, and the results are output to an output portion.
Inventors
- 👤 Mitsuho Yamada
- 👤 Hitoshi Hongo
- 👤 Kenya Uomori
- 👤 Hiroshi Yoshimatsu
- 👤 Keiichi Ueno
- 👤 Mitsuru Fujii
- 👤 Shinji Murakami
- 👤 Norihito Nakano
- 👤 Jiro Miyazawa
- 👤 Ryo Fukatsu
- 👤 Naohiko Takahata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:59
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/103; A61B5/11; A61B3/00; A61B3/10; A61B3/113; A61B5/40; A61B5/4076; A61B5/4088; G; G16; G16H; G16H15/00; A61B5/68; A61B5/6801; A61B5/6802; A61B5/6803; G16H40/00; G16H40/60; G16H40/63
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
206 words
A medical diagnostic apparatus utilizing line-of-sight detection for diagnosing a disease related to brain function by detecting the line-of-sight of a subject, comprising: eye movement detecting means for detecting eye movement of said subject; target presenting means for presenting a target to said subject; calculating means responsive to a detection output from said eye movement detecting means while said subject is gazing at a target presented by said target presenting means for calculating spatial movement of the line-of-sight of said subject to determine whether or not the disease is related to brain function; and output means for outputting the movement of the line-of-sight calculated by said calculating means and information indicating whether or not the disease is related to the brain function; and head movement detecting means for detecting head movement of said subject, wherein said calculating means include means responsive to a detection output from said head movement detecting means while said subject is gazing at the target and to the detection output from said eye movement detecting means for detecting spatial movement of the line-of-sight of said subject to output a result to said output means, and said target presenting means includes means for presenting targets from different angles with respect to said subject.
Claim 2
Dependent Claim
206 words
A medical diagnostic apparatus utilizing line-of-sight detection for diagnosing a disease related to brain function by detecting the line-of-sight of a subject, comprising: eye movement detecting means for detecting eye movement of said subject; target presenting means for presenting a target to said subject; calculating means responsive to a detection output from said eye movement detecting means while said subject is gazing at a target presented by said target presenting means for calculating spatial movement of the line-of-sight of said subject to determine whether or not the disease is related to brain function; and output means for outputting the movement of the line-of-sight calculated by said calculating means and information indicating whether or not the disease is related to the brain function; and head movement detecting means for detecting head movement of said subject, wherein said calculating means include means responsive to a detection output from said head movement detecting means while said subject is gazing at the target and to the detection output from said eye movement detecting means for detecting spatial movement of the line-of-sight of said subject to output a result to said output means, and said target presenting means includes means for presenting targets from different angles with respect to said subject.
Claim 3
Dependent Claim
189 words
A medical diagnostic apparatus utilizing line-of-sight detection for diagnosing a disease related to brain function by detecting the line-of-sight of a subject, comprising: eye movement detecting means for detecting eye movement of said subject; target presenting means for presenting a target to said subject; calculating means responsive to a detection output from said eye movement detecting means while said subject is gazing at a target presented by said target presenting means for calculating spatial movement of the line-of-sight of said subject to determine whether or not the disease is related to brain function; output means for outputting the movement of the line-of-sight calculated by said calculating means and information indicating whether or not the disease is related to the brain function; and head movement detecting means for detecting head movement of said subject, wherein said target presenting means include means for presenting targets from different angles with respect to said subject, and said calculating means include means responsive to the detection output from said head movement detecting means for calculating a rotation velocity component of the head movement of said subject to output a result to said output means.
Claim 4
Dependent Claim
189 words
A medical diagnostic apparatus utilizing line-of-sight detection for diagnosing a disease related to brain function by detecting the line-of-sight of a subject, comprising: eye movement detecting means for detecting eye movement of said subject; target presenting means for presenting a target to said subject; calculating means responsive to a detection output from said eye movement detecting means while said subject is gazing at a target presented by said target presenting means for calculating spatial movement of the line-of-sight of said subject to determine whether or not the disease is related to brain function; output means for outputting the movement of the line-of-sight calculated by said calculating means and information indicating whether or not the disease is related to the brain function; and head movement detecting means for detecting head movement of said subject, wherein said target presenting means include means for presenting targets from different angles with respect to said subject, and said calculating means include means responsive to the detection output from said head movement detecting means for calculating a rotation velocity component of the head movement of said subject to output a result to said output means.
Claim 5
Dependent Claim
189 words
A medical diagnostic apparatus utilizing line-of-sight detection for diagnosing a disease related to brain function by detecting the line-of-sight of a subject, comprising: eye movement detecting means for detecting eye movement of said subject; target presenting means for presenting a target to said subject; calculating means responsive to a detection output from said eye movement detecting means while said subject is gazing at a target presented by said target presenting means for calculating spatial movement of the line-of-sight of said subject to determine whether or not the disease is related to brain function; output means for outputting the movement of the line-of-sight calculated by said calculating means and information indicating whether or not the disease is related to the brain function; and head movement detecting means for detecting head movement of said subject, wherein said target presenting means include means for presenting targets from different angles with respect to said subject, and said calculating means include means responsive to the detection output from said head movement detecting means for calculating a translational velocity component of the head movement of said subject to output a result to said output means.
Claim 6
Dependent Claim
189 words
A medical diagnostic apparatus utilizing line-of-sight detection for diagnosing a disease related to brain function by detecting the line-of-sight of a subject, comprising: eye movement detecting means for detecting eye movement of said subject; target presenting means for presenting a target to said subject; calculating means responsive to a detection output from said eye movement detecting means while said subject is gazing at a target presented by said target presenting means for calculating spatial movement of the line-of-sight of said subject to determine whether or not the disease is related to brain function; output means for outputting the movement of the line-of-sight calculated by said calculating means and information indicating whether or not the disease is related to the brain function; and head movement detecting means for detecting head movement of said subject, wherein said target presenting means include means for presenting targets from different angles with respect to said subject, and said calculating means include means responsive to the detection output from said head movement detecting means for calculating a translational velocity component of the head movement of said subject to output a result to said output means.
Claim 7
Dependent Claim
208 words
A medical diagnostic apparatus utilizing line-of-sight detection for diagnosing a disease related to brain function by detecting the line-of-sight of a subject, comprising: eye movement detecting means for detecting eye movement of said subject; target presenting means for presenting a target to said subject; calculating means responsive to a detection output from said eye movement detecting means while said subject is gazing at a target presented by said target presenting means for calculating spatial movement of the line-of-sight of said subject to determine whether or not the disease is related to brain function; and output means for outputting the movement of the line-of-sight calculated by said calculating means and information indicating whether or not the disease is related to the brain function, wherein said target presenting means include means for presenting targets from different angles with respect to said subject, said calculating means include means responsive to the detection output from said eye movement detecting means for calculating the velocity component of the eye movement of said subject to output a result to said output means, and said calculating means include means for counting the number of the stepwise eye movements for comparing an anisotropy in velocity between left/right directions to output a result to said output means.
Claim 8
Dependent Claim
208 words
A medical diagnostic apparatus utilizing line-of-sight detection for diagnosing a disease related to brain function by detecting the line-of-sight of a subject, comprising: eye movement detecting means for detecting eye movement of said subject; target presenting means for presenting a target to said subject; calculating means responsive to a detection output from said eye movement detecting means while said subject is gazing at a target presented by said target presenting means for calculating spatial movement of the line-of-sight of said subject to determine whether or not the disease is related to brain function; and output means for outputting the movement of the line-of-sight calculated by said calculating means and information indicating whether or not the disease is related to the brain function, wherein said target presenting means include means for presenting targets from different angles with respect to said subject, said calculating means include means responsive to the detection output from said eye movement detecting means for calculating the velocity component of the eye movement of said subject to output a result to said output means, and said calculating means include means for counting the number of the stepwise eye movements for comparing an anisotropy in velocity between left/right directions to output a result to said output means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-16 | 1997-11-15 | 1998-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-16 | 2001-11-15 | 2002-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-16 | 2005-11-15 | 2006-05-17 | $7700.00 | Window Closed / Lapsed |