US5229603A
Expired / Lapsed
US
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Vibration detection apparatus
Assignee: Canon Inc
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Filing: 1991-07-30
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Granted: 1993-07-20
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Expires: 2011-07-30
Abstract
Abstract A vibration detection apparatus having an outer cylinder having a chamber in which a liquid is sealed, a movable member rotatably held about a predetermined rotating shaft, and detecting means for detecting a relative angular displacement of the movable member and the outer cylinder about the rotating shaft as a vibration signal, includes an electromagnetic means for controlling the relative angular displacement between the movable member and the outer cylinder, and a control means for nonlinearly changing the electromagnetic force of the electromagnetic means in accordance with the relative angular displacement between the movable member and the outer cylinder.
Inventors
- 👤 Yasuhiko Shiomi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:10
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/0888; G01P15/13; H; H04; H04N; H04N23/00; H04N23/60; H04N23/68; H04N23/681; H04N23/6812; G03; G03B; G03B2217/00; G03B2217/005
Claims Analysis
Total Claims: 46
Claim 1
Independent Claim
110 words
A vibration detection apparatus having an outer case having a chamber in which a liquid is sealed, a movable member disposed within the liquid and rotatably held about a predetermined rotating shaft, and detecting means for detecting a relative angular displacement of said movable member and said outer case about said rotating shaft as a vibration signal, comprising: (A) electromagnetic means for controlling the relative angular displacement between said movable member and said outer case in accordance with an electromagnetic force; and (B) control means for nonlinearly changing the electromagnetic force of said electromagnetic means in accordance with the relative angular displacement between said movable member and said outer case.
Claim 2
Dependent Claim
110 words
A vibration detection apparatus having an outer case having a chamber in which a liquid is sealed, a movable member disposed within the liquid and rotatably held about a predetermined rotating shaft, and detecting means for detecting a relative angular displacement of said movable member and said outer case about said rotating shaft as a vibration signal, comprising: (A) electromagnetic means for controlling the relative angular displacement between said movable member and said outer case in accordance with an electromagnetic force; and (B) control means for nonlinearly changing the electromagnetic force of said electromagnetic means in accordance with the relative angular displacement between said movable member and said outer case.
Claim 3
Dependent Claim
26 words
An apparatus according to claim 1, wherein said control means comprises means for controlling a Lorenz force applied to said movable member by the electromagnetic force.
Claim 4
Dependent Claim
40 words
An apparatus according to claim 1, wherein said control means comprises means for nonlinearly changing the electromagnetic force of said electromagnetic means in accordance with a change in the relative angular displacement between said movable member and said outer case.
Claim 5
Dependent Claim
42 words
An apparatus according to claim 1, wherein said control means comprises means for nonlinearly and greatly changing the electromagnetic force of said electromagnetic means in accordance with a change in the relative angular displacement between said movable member and said outer case.
Claim 6
Dependent Claim
21 words
An apparatus according to claim 1, wherein said control means comprises means for changing an energization amount of said electromagnetic means.
Claim 7
Dependent Claim
54 words
An apparatus according to claim 1, wherein said control means comprises means for nonlinearly changing the electromagnetic force of said electromagnetic means so that a ratio of the relative angular displacement between said movable member and said outer case to the electromagnetic force varies in accordance with a change in the relative angular displacement.
Claim 8
Dependent Claim
58 words
An apparatus according to claim 1, wherein said control means comprises means for nonlinearly changing the electromagnetic force of said electromagnetic means so that a ratio of a differential value of the relative angular displacement between said movable member and said outer case to the electromagnetic force varies in accordance with a change in the relative angular displacement.
Claim 9
Dependent Claim
40 words
An apparatus according to claim 1, wherein said control means comprises means for changing the electromagnetic force of said electromagnetic means stepwise in accordance with a change in the relative angular displacement between said movable member and the outer case.
Claim 10
Dependent Claim
50 words
An apparatus according to claim 1, wherein said control means comprises means for changing a spring coefficient of a spring force generated due to an electromagnetic behavior of said electromagnetic means stepwise in accordance with a change in the relative angular displacement between said movable member and said outer case.
Claim 11
Dependent Claim
49 words
An apparatus according to claim 1, wherein said control means comprises means for changing a viscous coefficient of a viscous force generated due to an electromagnetic behavior of said electromagnetic means stepwise in accordance with a change in the relative angular displacement between said movable member and said case.
Claim 12
Dependent Claim
42 words
An apparatus according to claim 1, wherein said control means comprises means for continuously and nonlinearly changing the electromagnetic force of said electromagnetic means in accordance with a change in the relative angular displacement between said movable member and said outer case.
Claim 13
Dependent Claim
41 words
An apparatus according to claim 1, wherein said control means comprises means for nonlinearly and greatly changing the electromagnetic force of said electromagnetic means in accordance with change in the relative angular displacement between said movable member and said outer case.
Claim 14
Dependent Claim
52 words
An apparatus according to claim 1, wherein said control means comprises means for nonlinearly, continuously, and greatly changing a spring coefficient of a spring force generated due to electromagnetic behavior of said electromagnetic means in accordance with a change in the relative angular displacement between said movable member and said outer case.
Claim 15
Dependent Claim
52 words
An apparatus according to claim 1, wherein said control means comprises means for nonlinearly and continuously changing a spring coefficient of a spring force generated due to an electromagnetic behavior of said electromagnetic means in accordance with a change in the relative angular displacement between said movable member and said outer case.
Claim 16
Dependent Claim
53 words
An apparatus according to claim 1, wherein said control means comprises means for nonlinearly, continuously, and greatly changing a viscous coefficient of a viscous force generated due to an electromagnetic behavior of said electromagnetic means in accordance with a change in the relative angular displacement between said movable means and said outer case.
Claim 17
Dependent Claim
52 words
An apparatus according to claim 1, wherein said control means comprises means for nonlinearly and continuously changing a viscous coefficient of a viscous force generated due to an electromagnetic behavior of said electromagnetic means in accordance with a change in the relative angular displacement between said movable member and said outer case.
Claim 18
Independent Claim
101 words
An apparatus for detecting a relative moving state, including: (A) means for sealing a liquid; (B) a movable member disposed within the liquid and movable together with the liquid relative to said sealing means; (C) means for detecting the relative moving state between said sealing means and said movable member; (D) electromagnetic means for controlling the relative movement between said sealing means and said movable member in accordance with an electromagnetic force; and (E) control means for nonlinearly changing the electromagnetic force of said electromagnetic means in accordance with the relative moving state between said sealing means and said movable member.
Claim 19
Independent Claim
101 words
An apparatus for detecting a relative moving state, including: (A) means for sealing a liquid; (B) a movable member disposed within the liquid and movable together with the liquid relative to said sealing means; (C) means for detecting the relative moving state between said sealing means and said movable member; (D) electromagnetic means for controlling the relative movement between said sealing means and said movable member in accordance with an electromagnetic force; and (E) control means for nonlinearly changing the electromagnetic force of said electromagnetic means in accordance with the relative moving state between said sealing means and said movable member.
Claim 20
Dependent Claim
26 words
An apparatus according to claim 17, wherein said control means comprises means for controlling a Lorenz force applied to said movable member by the electromagnetic force.
Claim 21
Dependent Claim
41 words
An apparatus according to claim 17, wherein said control means comprises means for nonlinearly and greatly changing the electromagnetic force of said electromagnetic means in accordance with a change in the relative movement between said movable member and said sealing means.
Claim 22
Dependent Claim
41 words
An apparatus according to claim 17, wherein said control means comprises means for nonlinearly and greatly changing the electromagnetic force of said electromagnetic means in accordance with a change in the relative movement between said movable member and said sealing means.
Claim 23
Dependent Claim
21 words
An apparatus according to claim 17, wherein said control means comprises means for changing an energization amount of said electromagnetic means.
Claim 24
Dependent Claim
46 words
An apparatus according to claim 17, wherein said control means comprises means for changing a proportional coefficient, for changing the electromagnetic force of said electromagnetic means in proportion to the relative movement between said movable member and said sealing means, in accordance with the relative movement.
Claim 25
Dependent Claim
50 words
An apparatus according to claim 17, wherein said control means comprises means, for changing a proportional coefficient for changing the electromagnetic force of said electromagnetic means in proportion to a differential value of the relative movement between said movable member and said sealing means, in accordance with the relative movement.
Claim 26
Dependent Claim
39 words
An apparatus according to claim 17, wherein said control means comprises means for changing the electromagnetic force of said electromagnetic means stepwise in accordance with a change in the relative movement between said movable member and said sealing means.
Claim 27
Dependent Claim
49 words
An apparatus according to claim 17, wherein said control means comprises means for changing a spring coefficient of a spring force generated due to an electromagnetic behavior of said electromagnetic means stepwise in accordance with a change in the relative movement between said movable member and said sealing means.
Claim 28
Dependent Claim
49 words
An apparatus according to claim 17, wherein said control means comprises means for changing a viscous coefficient of a viscous force generated due to an electromagnetic behavior of said electromagnetic means stepwise in accordance with a change in the relative movement between said movable member and said sealing means.
Claim 29
Dependent Claim
41 words
An apparatus according to claim 17, wherein said control means comprises means for continuously and nonlinearly changing the electromagnetic force of said electromagnetic means in accordance with a change in the relative movement between said movable member and said sealing member.
Claim 30
Dependent Claim
42 words
An apparatus according to claim 17, wherein said control means comprises means for nonlinearly, continuously, and greatly changing the electromagnetic force of said electromagnetic means in accordance with a change in the relative movement between said movable member and said sealing means.
Claim 31
Dependent Claim
52 words
An apparatus according to claim 17, wherein said control means comprises means for nonlinearly, continuously, and greatly changing a spring coefficient of a spring force generated due to an electromagnetic behavior of said electromagnetic means in accordance with a change in the relative movement between said movable member and said sealing means.
Claim 32
Dependent Claim
50 words
An apparatus according to claim 17, wherein said control means comprises means for nonlinearly and continuously changing a spring coefficient of a spring force generated due to an electromagnetic behavior of said electromagnetic means in accordance with a change in the relative movement between said movable member and said sealing.
Claim 33
Dependent Claim
52 words
An apparatus according to claim 17, wherein said control means comprises means for nonlinearly, continuously, and greatly changing a viscous coefficient of a viscous force generated due to an electromagnetic behavior of said electromagnetic means in accordance with a change in the relative movement between said movable means and said sealing means
Claim 34
Dependent Claim
50 words
An apparatus according claim 17, wherein said control means comprises means for nonlinearly and continuously changing a viscous coefficient of a viscous force generated due to an electromagnetic behavior of said electromagnetic means in accordance with a change in the relative movement between said movable member and said sealing means.
Claim 35
Independent Claim
101 words
An apparatus for detecting a relative moving state, comprising: (A) a movable member; (B) holding means for movably holding said movable member; (C) means for detecting the relative moving state between said movable member and said holding means; (D) electromagnetic means for controlling relative movement between said movable member and said holding means in accordance with an electromagnetic force; and (E) control means for changing a proportional coefficient for changing the electromagnetic force of said electromagnetic means in proportion to a differential value of the relative movement between said movable member and said holding means in accordance with the relative movement.
Claim 36
Independent Claim
101 words
An apparatus for detecting a relative moving state, comprising: (A) a movable member; (B) holding means for movably holding said movable member; (C) means for detecting the relative moving state between said movable member and said holding means; (D) electromagnetic means for controlling relative movement between said movable member and said holding means in accordance with an electromagnetic force; and (E) control means for changing a proportional coefficient for changing the electromagnetic force of said electromagnetic means in proportion to a differential value of the relative movement between said movable member and said holding means in accordance with the relative movement.
Claim 37
Dependent Claim
26 words
An apparatus according to claim 33, wherein said control means comprises means for controlling a Lorenz force applied to said movable member by the electromagnetic force.
Claim 38
Dependent Claim
39 words
An apparatus according to claim 33, wherein said control means comprises means for nonlinearly changing the electromagnetic force of said electromagnetic means in accordance with a change in the relative movement between said movable member and said holding means.
Claim 39
Dependent Claim
41 words
An apparatus according to claim 33, wherein said control means comprises means for nonlinearly and greatly changing the electromagnetic force of said electromagnetic means in accordance with a change in the relative movement between said movable member and said holding means.
Claim 40
Dependent Claim
21 words
An apparatus according to claim 33, wherein said control means comprises means for changing an energization amount of said electromagnetic means.
Claim 41
Dependent Claim
39 words
An apparatus according to claim 33, wherein said control means comprises means for changing the electromagnetic force of said electromagnetic means stepwise in accordance with a change in the relative movement between said movable member and said holding means.
Claim 42
Dependent Claim
49 words
An apparatus according to claim 33, wherein said control means comprises means for changing a viscous coefficient of a viscous force generated due to an electromagnetic behavior of said electromagnetic means stepwise in accordance with a change in the relative movement between said movable member and said holding means.
Claim 43
Dependent Claim
40 words
An apparatus according to claim 33, wherein said control means comprises means for continuously and nonlinearly changing the electromagnetic force of said means in accordance with a change in the relative movement between said movable member and said holding means.
Claim 44
Dependent Claim
42 words
An apparatus according to claim 33, wherein said control means comprises means for nonlinearly, continuously, and greatly changing the electromagnetic force of said electromagnetic means in accordance with a change in the relative movement between said movable member and said holding means.
Claim 45
Dependent Claim
52 words
An apparatus according to claim 33, wherein said control means comprises means for nonlinearly, continuously, and greatly changing a viscous coefficient of a viscous force generated die to an electromagnetic behavior of said electromagnetic means in accordance with a change in the relative movement between said movable member and said holding means.
Claim 46
Dependent Claim
53 words
An apparatus according to claim 33, wherein said control means comprises means for nonlinearly and continuously changing a viscous coefficient of a viscous force generated due to an electromagnetic behavior of said electromagnetic means in accordance with a change in the relative movement between said movable member and said holding means is increased.
References Cited (Backward Citations)
US4649748A
Cited
US4792931A
Cited
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1996-07-19 | 1997-01-18 | 1997-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-19 | 2001-01-18 | 2001-07-20 | $3760.00 | Window Closed / Lapsed |
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