US5923368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera with image stabilization controlled by focus detection
Assignee: Canon Inc
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Filing: 1996-04-01
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Granted: 1999-07-13
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Expires: 2016-04-01
Abstract
Abstract A camera includes a vibration detecting sensor for detecting a vibration of the camera, a correcting device for correcting a shake of an image due to the vibration, a focus detecting circuit for detecting a state of focus by using information about the image, and a controlling circuit for controlling the correcting operation of the correcting device according to the state of focus detected by the focus detecting circuit.
Inventors
- 👤 Masahide Hirasawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:46
CPC Classifications
H; H04; H04N; H04N23/00; H04N23/60; H04N23/68; H04N23/682; H04N23/685; H04N23/686; H04N23/67; H04N23/673; H04N23/681; H04N23/6812
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
93 words
A focus control apparatus comprising: image pickup means; focus adjusting means for adjusting a focus condition on the basis of a predetermined signal component of an image signal output by said image pickup means; vibration detecting means for detecting a vibration of an apparatus body; correcting means for correcting a motion of an image due to the vibration, on the basis of information about the vibration detected by said vibration detecting means; and controlling means for changing a correcting operation of said correcting means according to a restarting of said focus adjusting means.
Claim 2
Dependent Claim
93 words
A focus control apparatus comprising: image pickup means; focus adjusting means for adjusting a focus condition on the basis of a predetermined signal component of an image signal output by said image pickup means; vibration detecting means for detecting a vibration of an apparatus body; correcting means for correcting a motion of an image due to the vibration, on the basis of information about the vibration detected by said vibration detecting means; and controlling means for changing a correcting operation of said correcting means according to a restarting of said focus adjusting means.
Claim 3
Dependent Claim
31 words
An apparatus according to claim 1, wherein said control means restrains the correcting operation of said correcting means in a state that said focus adjusting means restarts the adjusting operation period.
Claim 4
Dependent Claim
28 words
An apparatus according to claim 1, wherein said control means controls a response characteristic of a vibration correcting operation of said correcting means according to the focus condition.
Claim 5
Dependent Claim
22 words
An apparatus according to claim 3, wherein said control means controls an amount of correction to be executed by said correcting means.
Claim 6
Dependent Claim
30 words
An apparatus according to claim 3, wherein said control means controls the amount of correction by varying a control loop gain of said correcting means according to the focus condition.
Claim 7
Dependent Claim
25 words
An apparatus according to claim 5, wherein said control means lowers the loop gain of said correcting means when the focus condition is substantially out-of-focus.
Claim 8
Dependent Claim
15 words
An apparatus according to claim 1, wherein said vibration detecting means comprises an angular-velocity sensor.
Claim 9
Dependent Claim
17 words
An apparatus according to claim 1, wherein said correcting means optically corrects the motion of the image.
Claim 10
Dependent Claim
15 words
An apparatus according to claim 8, wherein said correcting means comprises a variable angle prism.
Claim 11
Dependent Claim
31 words
An apparatus according to claim 1, wherein said focus adjusting means adjusts the state of focus on the basis of a level of a high-frequency component of a picked-up image signal.
Claim 12
Dependent Claim
85 words
An optical system comprising: focus adjusting means for adjusting a state of focus on the basis of a predetermined signal component of a received image signal; vibration detecting means for physically detecting a vibration of said system; correcting means for correcting a motion of an image due to the vibration, on the basis of information about the vibration detected by said vibration detecting means; and controlling means for changing a correcting operation of said correcting means according to a restarting of said focus adjusting means.
Claim 13
Dependent Claim
85 words
An optical system comprising: focus adjusting means for adjusting a state of focus on the basis of a predetermined signal component of a received image signal; vibration detecting means for physically detecting a vibration of said system; correcting means for correcting a motion of an image due to the vibration, on the basis of information about the vibration detected by said vibration detecting means; and controlling means for changing a correcting operation of said correcting means according to a restarting of said focus adjusting means.
Claim 14
Dependent Claim
30 words
An apparatus according to claim 11, wherein said control means restrains the correcting operation of said correcting means in a state that said focus adjusting means restarts the adjusting operation.
Claim 15
Dependent Claim
34 words
An apparatus according to claim 11, wherein said control means controls a response characteristic of a vibration correcting operation of said correcting means according to the focus condition adjusted by said focus adjusting means.
Claim 16
Dependent Claim
22 words
An apparatus according to claim 11, wherein said control means controls an amount of correction to be executed by said correcting means.
Claim 17
Dependent Claim
30 words
An apparatus according to claim 14, wherein said switching means controls an amount of correction by varying a control loop gain of said correcting means according to the focus condition.
Claim 18
Dependent Claim
25 words
An apparatus according to claim 15, wherein said control means lowers the loop gain of said correcting means when the focus condition is substantially out-of-focus.
Claim 19
Dependent Claim
15 words
An apparatus according to claim 11, wherein said vibration detecting means comprises an angular-velocity sensor.
Claim 20
Dependent Claim
17 words
An apparatus according to claim 11, wherein said correcting means optically corrects the motion of the image.
Claim 21
Dependent Claim
15 words
An apparatus according to claim 18, wherein said correcting means comprises a variable angle prism.
Claim 22
Dependent Claim
31 words
An apparatus according to claim 11, wherein said focus adjusting means adjusts the state of focus on the basis of a level of a high-frequency component of a picked-up image signal.
Claim 23
Dependent Claim
73 words
An optical system comprising: vibration detecting means for detecting a vibration of said system; focus adjusting means for adjusting a focus condition of the system; correcting means for correcting a motion of an image due to the vibration, on the basis of information about the vibration detected by said vibration detecting means; and controlling means for changing a correcting operation of said correcting means according to a restarting of said focus adjusting means.
Claim 24
Dependent Claim
73 words
An optical system comprising: vibration detecting means for detecting a vibration of said system; focus adjusting means for adjusting a focus condition of the system; correcting means for correcting a motion of an image due to the vibration, on the basis of information about the vibration detected by said vibration detecting means; and controlling means for changing a correcting operation of said correcting means according to a restarting of said focus adjusting means.
Claim 25
Dependent Claim
23 words
An apparatus according to claim 21, wherein said control means controls a response characteristic of a vibration correcting operation of said correcting means.
Claim 26
Dependent Claim
22 words
An apparatus according to claim 22, wherein said control means controls an amount of correction to be executed by said correcting means.
Claim 27
Dependent Claim
25 words
An apparatus according to claim 23, wherein said control means controls an amount of correction by varying a control loop gain of said correcting means.
Claim 28
Dependent Claim
31 words
An apparatus according to claim 24, wherein said control means lowers the loop gain of said correcting means in a state that said information indicates the focus condition is substantially out-of-focus.
Claim 29
Dependent Claim
15 words
An apparatus according to claim 21, wherein said vibration detecting means comprises an angular-velocity sensor.
Claim 30
Dependent Claim
17 words
An apparatus according to claim 21, wherein said correcting means optically corrects the motion of the image.
Claim 31
Dependent Claim
15 words
An apparatus according to claim 27, wherein said correcting means comprises a variable angle prism.
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) | 2002-07-12 | 2003-01-11 | 2003-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-07-12 | 2007-01-11 | 2007-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-07-12 | 2011-01-11 | 2011-07-13 | $7700.00 | Window Closed / Lapsed |