Patent US5608703A successfully refreshed from Google Patents.
US5608703A
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Image blur prevention apparatus
Assignee: Canon Inc
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Filing: 1995-12-21
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Granted: 1997-03-04
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Expires: 2015-12-21
Abstract
Abstract An apparatus includes a control unit for switching image blur prevention operations between a first image blur prevention operation and a second image blur prevention operation with respect to the same image blur state in accordance with a start of a photographing operation. For example, the control unit performs control to switch modes between a mode of performing a prevention operation by an operation amount required to attain correction, and a mode of performing a prevention operation by an operation amount smaller than the required operation amount to leave room for correction. This switching operation is performed independently of an image blur frequency. For example, a gain is evenly changed at all frequencies. With this arrangement, the operability of the apparatus can be improved.
Inventors
- 👤 Koichi Washisu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:17
CPC Classifications
G; G03; G03B; G03B5/00; G03B2205/00; G03B2205/0007; G03B2217/00; G03B2217/005
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
62 words
An apparatus adapted to an image blur prevention apparatus, comprising: a control unit for performing control to switch operations between a first image blur prevention operation and a second image blur prevention operation with respect to the same image blur state in accordance with a start of a photographing operation, said control unit switching the operations independently of an image blur frequency.
Claim 2
Independent Claim
62 words
An apparatus adapted to an image blur prevention apparatus, comprising: a control unit for performing control to switch operations between a first image blur prevention operation and a second image blur prevention operation with respect to the same image blur state in accordance with a start of a photographing operation, said control unit switching the operations independently of an image blur frequency.
Claim 3
Dependent Claim
44 words
An apparatus according to claim 1, wherein the image blur prevention apparatus performs image blur prevention by correcting an image blur, and said control unit includes means for switching operations between a first image blur correction operation and a second image blur correction operation.
Claim 4
Dependent Claim
40 words
An apparatus according to claim 2, wherein said control unit includes means for changing an image blur correction amount with respect to the same image blur state depending on whether the first or second image blur correction operation is performed.
Claim 5
Dependent Claim
56 words
An apparatus according to claim 2, wherein said control unit includes means for switching modes between a first image blur correction mode of substantially performing correction by an operation amount required to correct an image blur, and a second image blur correction mode of performing correction by an operation amount smaller than the required operation amount.
Claim 6
Dependent Claim
40 words
An apparatus according to claim 4, wherein said control apparatus includes means for performing the first image blur correction mode before a photographing operation is started, and performing the second image blur correction mode while a photographing operation is performed.
Claim 7
Dependent Claim
32 words
An apparatus according to claim 1, wherein said control unit includes means for performing the switching operation in accordance with an operational state of an operation portion for performing a photographing operation.
Claim 8
Dependent Claim
59 words
An apparatus according to claim 1, wherein the image blur prevention apparatus performs image blur prevention in accordance with a signal corresponding to an image blur state, and said control unit includes means for changing an operation of the image blur prevention apparatus by changing a manner of responding to a signal corresponding to the same image blur state.
Claim 9
Dependent Claim
61 words
An apparatus according to claim 7, wherein the image blur prevention apparatus performs image blur prevention in accordance with a signal amplified by amplification means for amplifying a signal corresponding to the image blur state, and said control unit includes means for changing an operation of the image blur prevention apparatus by changing a degree of amplification of the amplification means.
Claim 10
Dependent Claim
68 words
An image blur prevention apparatus comprising: image blur prevention means for preventing an image blur; and a control unit for performing control to switch operations between a first image blur prevention operation and a second image blur prevention operation with respect to the same image blur state in accordance with a start of a photographing operation, said control unit switching the operations independently of an image blur frequency.
Claim 11
Dependent Claim
68 words
An image blur prevention apparatus comprising: image blur prevention means for preventing an image blur; and a control unit for performing control to switch operations between a first image blur prevention operation and a second image blur prevention operation with respect to the same image blur state in accordance with a start of a photographing operation, said control unit switching the operations independently of an image blur frequency.
Claim 12
Dependent Claim
65 words
An optical equipment to which an image blur prevention apparatus is applied, comprising: a control unit for performing control to switch operations between a first image blur prevention operation and a second image blur prevention operation with respect to the same image blur state in accordance with a start of a photography operation, said control unit switching the operations independently of an image blur frequency.
Claim 13
Dependent Claim
65 words
An optical equipment to which an image blur prevention apparatus is applied, comprising: a control unit for performing control to switch operations between a first image blur prevention operation and a second image blur prevention operation with respect to the same image blur state in accordance with a start of a photography operation, said control unit switching the operations independently of an image blur frequency.
Claim 14
Dependent Claim
64 words
A camera to which an image blur prevention apparatus is applied, comprising: a control unit for performing control to switch operations between a first image blur prevention operation and a second image blur prevention operation with respect to the same image blur state in accordance with a start of a photographing operation, said control unit switching the operations independently of an image blur frequency.
Claim 15
Dependent Claim
64 words
A camera to which an image blur prevention apparatus is applied, comprising: a control unit for performing control to switch operations between a first image blur prevention operation and a second image blur prevention operation with respect to the same image blur state in accordance with a start of a photographing operation, said control unit switching the operations independently of an image blur frequency.
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) | 2000-03-03 | 2000-09-02 | 2001-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-03 | 2004-09-02 | 2005-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-03 | 2008-09-02 | 2009-03-04 | $7700.00 | Window Closed / Lapsed |