Patent US5546158A successfully refreshed from Google Patents.
US5546158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
View point detecting apparatus wherein first and subsequent view point data are compared
Assignee: Canon Inc
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Filing: 1995-05-22
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Granted: 1996-08-13
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Expires: 2015-05-22
Abstract
Abstract View point detecting apparatus wherein first and subsequent view point data are compared includes state detecting structure for detecting the state of an observer's view point. Circuitry is provided for determining, when amounts of a variation between a first view point information and a subsequent view point information exceed a predetermined value, that the first view point information is effective. Preferably, structure is also provided for adjusting a photo-taking lens on the basis of the first view point information.
Inventors
- 👤 Kazuki Konishi
- 👤 Akihiko Nagano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:30
CPC Classifications
A; A61; A61B; A61B3/00; A61B3/10; A61B3/113; H; H04; H04N; H04N23/00; H04N23/60; H04N23/67; H04N23/675; G; G03; G03B; G03B2213/00; G03B2213/02; G03B2213/025
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
67 words
A view point detecting apparatus comprising: first detecting means for detecting a view point information; and second detecting means for detecting an amount of variation in a first view point information and a subsequent second view point information detected by said first detecting means and for determining said first view point information as an effective view point information when said amount of variation exceeds a standard value.
Claim 2
Dependent Claim
67 words
A view point detecting apparatus comprising: first detecting means for detecting a view point information; and second detecting means for detecting an amount of variation in a first view point information and a subsequent second view point information detected by said first detecting means and for determining said first view point information as an effective view point information when said amount of variation exceeds a standard value.
Claim 3
Dependent Claim
29 words
A view point detecting apparatus according to claim 1, further comprising means for effecting focus adjustment of a photo-taking lens on the basis of said first view point information.
Claim 4
Dependent Claim
23 words
A view point detecting apparatus according to claim 1, wherein said standard value consists of a value related to a saccadic eye movement.
Claim 5
Dependent Claim
27 words
A view point detecting apparatus according to claim 1, wherein each of said first view point information and said second view point information comprises respective position information.
Claim 6
Dependent Claim
109 words
A view point detecting apparatus comprising: detecting means for detecting a view point information; and changing means for changing information from a first view point information to a subsequent second view point information, after detection of said first and second view point information by said detecting means, when an amount of variation from said second view point information to said first view point information exceeds a first standard value and an amount of variation from said second view point information to a third view point information detected by said detecting means does not exceed a second standard value for a time longer than or equal to a predetermined time.
Claim 7
Dependent Claim
109 words
A view point detecting apparatus comprising: detecting means for detecting a view point information; and changing means for changing information from a first view point information to a subsequent second view point information, after detection of said first and second view point information by said detecting means, when an amount of variation from said second view point information to said first view point information exceeds a first standard value and an amount of variation from said second view point information to a third view point information detected by said detecting means does not exceed a second standard value for a time longer than or equal to a predetermined time.
Claim 8
Dependent Claim
29 words
A view point detecting apparatus according to claim 5, further comprising means for effecting focus adjustment of a photo-taking lens on the basis of said second view point information.
Claim 9
Dependent Claim
26 words
A view point detecting apparatus according to claim 3, wherein said second standard value consists of a value related to a minute eye movement of fixation.
Claim 10
Dependent Claim
27 words
A view point detecting apparatus according to claim 5, wherein each of said first view point information and said second view point information comprises respective position information.
Claim 11
Dependent Claim
90 words
A view point detecting apparatus comprising: first detecting means for detecting a view point position; and second detecting means for detecting a difference between a first view point position and a subsequent second view point position detected by said first detecting means and for determining said first view point position as an effective view point position when said difference is below a standard value, and for determining said second view point position as an effective view point position when said difference is greater than or equal to said standard value.
Claim 12
Dependent Claim
90 words
A view point detecting apparatus comprising: first detecting means for detecting a view point position; and second detecting means for detecting a difference between a first view point position and a subsequent second view point position detected by said first detecting means and for determining said first view point position as an effective view point position when said difference is below a standard value, and for determining said second view point position as an effective view point position when said difference is greater than or equal to said standard value.
Claim 13
Dependent Claim
29 words
A view point detecting apparatus according to claim 9, further comprising means for effecting focus adjustment of a photo-taking lens on the basis of said first view point information.
Claim 14
Dependent Claim
25 words
A view point detecting apparatus according to claim 9, wherein said standard value consists of a value related to a minute eye movement of fixation.
Claim 15
Dependent Claim
27 words
A view point detecting apparatus according to claim 9, wherein each of said first view point information and said second view point information comprises respective position information.
Claim 16
Dependent Claim
68 words
An image taking apparatus comprising: first detecting means for detecting a state of a view point; and second detecting means for detecting an amount of variation in a first view point information and a subsequent second view point information detected by said first detecting means and for determining said first view point information as an effective view point information when said amount of variation exceeds a standard value.
Claim 17
Dependent Claim
68 words
An image taking apparatus comprising: first detecting means for detecting a state of a view point; and second detecting means for detecting an amount of variation in a first view point information and a subsequent second view point information detected by said first detecting means and for determining said first view point information as an effective view point information when said amount of variation exceeds a standard value.
Claim 18
Dependent Claim
28 words
An image taking apparatus according to claim 13, further comprising means for effecting focus adjustment of a photo-taking lens on the basis of said first view point information.
Claim 19
Dependent Claim
22 words
An image taking apparatus according to claim 13, wherein said standard value consists of a value related to a saccadic eye movement.
Claim 20
Dependent Claim
26 words
An image taking apparatus according to claim 13, wherein each of said first view point information and said second view point information comprises respective position information.
Claim 21
Dependent Claim
110 words
An image taking apparatus comprising: detecting means for detecting a state of a view point; and changing means for changing information from a first view point information to a subsequent second view point information, after detection of said first and second view point information by said detecting means, when an amount of variation from said second view point information to said first view point information exceeds a first standard value and an amount of variation from said second view point information to a third view point information detected by said detecting means does not exceed a second standard value for a time longer than or equal to a predetermined time.
Claim 22
Dependent Claim
110 words
An image taking apparatus comprising: detecting means for detecting a state of a view point; and changing means for changing information from a first view point information to a subsequent second view point information, after detection of said first and second view point information by said detecting means, when an amount of variation from said second view point information to said first view point information exceeds a first standard value and an amount of variation from said second view point information to a third view point information detected by said detecting means does not exceed a second standard value for a time longer than or equal to a predetermined time.
Claim 23
Dependent Claim
28 words
An image taking apparatus according to claim 17, further comprising means for effecting focus adjustment of a photo-taking lens on the basis of said second view point information.
Claim 24
Dependent Claim
25 words
An image taking apparatus according to claim 17, wherein said second standard value consists of a value related to a minute eye movement of fixation.
Claim 25
Dependent Claim
26 words
An image taking apparatus according to claim 17, wherein each of said first view point information and said second view point information comprises respective position information.
Claim 26
Dependent Claim
89 words
An image taking apparatus comprising: first detecting means for detecting a view point position; and second detecting means for detecting a difference between a first view point position and a subsequent second view point position detected by said first detecting means and for determining said first view point position as an effective view point position when said difference is below a standard value, and for determining said second view point position as an effective view point position when said difference is greater than or equal to said standard value.
Claim 27
Dependent Claim
89 words
An image taking apparatus comprising: first detecting means for detecting a view point position; and second detecting means for detecting a difference between a first view point position and a subsequent second view point position detected by said first detecting means and for determining said first view point position as an effective view point position when said difference is below a standard value, and for determining said second view point position as an effective view point position when said difference is greater than or equal to said standard value.
Claim 28
Dependent Claim
28 words
An image taking apparatus according to claim 21, further comprising means for effecting focus adjustment of a photo-taking lens on the basis of said first view point information.
Claim 29
Dependent Claim
24 words
An image taking apparatus according to claim 21, wherein said standard value consists of a value related to a minute eye movement of fixation.
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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) | 1999-08-13 | 2000-02-12 | 2000-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-13 | 2004-02-12 | 2004-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-13 | 2008-02-12 | 2008-08-13 | $7700.00 | Window Closed / Lapsed |