US3774198A
Expired / Lapsed
US
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Galvano-magneto effect apparatus
Assignee: Denki Onkyo Co Ltd
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Filing: 1972-09-29
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Granted: 1973-11-20
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Expires: 1992-09-29
Abstract
Abstract A galvano-magneto effect apparatus in which a plurality of moving yokes being combined with a fixed yoke to form a magnetic path are arranged in parallel between different magnetic pole surfaces of said fixed yoke containing magnets respectively, a plurality of galvano-magneto effect devices to which a magnetic flux is applied are provided between the moving yokes and fixed yoke and said moving yokes are adapted to independently move in parallel, whereby said devices are respectively operated by actuating said moving yokes selectively with selecting means.
Inventors
- 👤 M Takeda
- 👤 S Honda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:21
CPC Classifications
B; B41; B41J; B41J5/00; B41J5/08; H; H03; H03K; H03K17/00; H03K17/94; H03K17/965; H03K17/97; H03K17/972; H04; H04L; H04L13/00; H04L13/16
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
320 words
A galvano-magneto effect apparatus comprising: a. a fixed yoke containing at least one magnet and forming a fixed part of a closed magnetic path, b. a plurality of galvano-magneto effect devices being aligned at specified positions on the surface of said fixed yoke, c. a plurality of moving parallel yokes made of a magnetic material wherein each of said moving yokes is combined with said fixed yoke to form part of said closed magnetic path, the free ends of said moving yokes respectively opposed to said fixed yoke in order to apply the magnetic flux respectively to said devices and said moving yokes and moving in parallel in the direction intersecting at a right angle to the direction of magnetic flux between said moving yokes and fixed yoke to vary the density of the magnetic flux to be applied to said devices, d. a supporting means for holding said moving yokes at the specified positions and providing a returning force for the moving yokes which have moved from their normal position, e. a plurality of select bars made of non-magnetic material which are arranged to overlap said moving yokes at a right angle and resetting means for holding said select bars so that the moving yokes are not normally moved wherein the number of select bars is at least one more than said moving yokes, f. a selecting means, provided at at least one of said moving yokes and selected bars, for selecting and actuating the moving yokes by action of said select bar, and g. a detecting circuit which detects individually the change in state of said galvano-magneto effect devices, wherein said moving yokes are moved in parallel by the action of said select bars against the returning force of said supporting means and a combination of moving yokes selected by each select bar is different from that of moving yokes selected by the others of said select bars.
Claim 2
Dependent Claim
320 words
A galvano-magneto effect apparatus comprising: a. a fixed yoke containing at least one magnet and forming a fixed part of a closed magnetic path, b. a plurality of galvano-magneto effect devices being aligned at specified positions on the surface of said fixed yoke, c. a plurality of moving parallel yokes made of a magnetic material wherein each of said moving yokes is combined with said fixed yoke to form part of said closed magnetic path, the free ends of said moving yokes respectively opposed to said fixed yoke in order to apply the magnetic flux respectively to said devices and said moving yokes and moving in parallel in the direction intersecting at a right angle to the direction of magnetic flux between said moving yokes and fixed yoke to vary the density of the magnetic flux to be applied to said devices, d. a supporting means for holding said moving yokes at the specified positions and providing a returning force for the moving yokes which have moved from their normal position, e. a plurality of select bars made of non-magnetic material which are arranged to overlap said moving yokes at a right angle and resetting means for holding said select bars so that the moving yokes are not normally moved wherein the number of select bars is at least one more than said moving yokes, f. a selecting means, provided at at least one of said moving yokes and selected bars, for selecting and actuating the moving yokes by action of said select bar, and g. a detecting circuit which detects individually the change in state of said galvano-magneto effect devices, wherein said moving yokes are moved in parallel by the action of said select bars against the returning force of said supporting means and a combination of moving yokes selected by each select bar is different from that of moving yokes selected by the others of said select bars.
Claim 3
Dependent Claim
47 words
An apparatus according to claim 1, wherein said supporting means is adapted to have rotary arms which independently rotate at the rotation axis in parallel with the parallel parts of said moving yokes, each of the moving yokes being mounted at the end of said rotary arms.
Claim 4
Dependent Claim
31 words
An apparatus according to claim 2, wherein said rotary arms are adapted to provide the returning force obtained from balancing of the weight of the rotary arm to said moving yokes.
Claim 5
Dependent Claim
26 words
An apparatus according to claim 2, wherein said rotary arms are provided respectively with the resetting springs which provide the returning force to said moving yokes.
Claim 6
Dependent Claim
22 words
An apparatus according to claim 1, wherein said supporting means comprises a large-diameter coil spring on which said moving yokes are mounted.
Claim 7
Dependent Claim
48 words
An apparatus according to claim 1, wherein at least one magnetic flux concentrating yoke of a magnetic material and having a specified width in the direction of movement of said moving yoke is provided at a position opposing said moving yoke on the surface of said fixed yoke.
Claim 8
Dependent Claim
17 words
An apparatus according to claim 6, wherein said galvano-magneto effect devices are mounted on said concentrating yoke.
Claim 9
Dependent Claim
29 words
An apparatus according to claim 6, wherein at least one pair of said magnetic flux concentrating yokes are aligned in the direction of of movement of said moving yokes.
Claim 10
Dependent Claim
37 words
An apparatus according to claim 1, wherein said selecting means comprises a plurality of projecting parts provided on each moving yoke so that the projecting parts are opposed to the select bars which select the moving yokes.
Claim 11
Dependent Claim
49 words
An apparatus according to claim 1, wherein said selecting means comprises a plurality of depressiNg edges, each being formed adjacent a plurality of recessed portions which are provided at each select bar so as to be opposed to the moving yoke which is not selected by the select bar.
Claim 12
Dependent Claim
35 words
An apparatus according to claim 1, wherein said selecting means comprises a plurality of projecting parts provided at the select bars so that said projecting parts are opposed to said moving yokes to be selected.
Claim 13
Dependent Claim
18 words
An apparatus according to claim 11, wherein said projecting parts comprise screws being mounted in the select bar.
Claim 14
Dependent Claim
35 words
An apparatus according to claim 1, wherein said selecting means comprise a plurality of grooves provided on moving yokes so that said grooves are opposed to select bars which do not select the moving yokes.
Claim 15
Dependent Claim
26 words
An apparatus according to claim 1, wherein said galvano-magneto effect devices are adapted so that the concentrating magnetic flux is normally applied to said moving yoke.
Claim 16
Dependent Claim
33 words
An apparatus according to claim 1, wherein said galvano-magneto effect devices are adapted so that the concentrating magnetic flux is applied to said moving yoke at a position away from the normal position.
Claim 17
Dependent Claim
311 words
An apparatus according to claim 1 which is provided with a strobe signal generating mechanism comprising: i. at least one strobe signal galvano-magneto effect device aligned at a specified position of the surface of said fixed yoke, ii. at least one moving yoke for said strobe signal made of a magnetic material which has both free ends opposed to said fixed yoke wherein said moving yoke is combined with said fixed yoke to form part of said closed magnetic path and a magnetic flux is applied to said galvano-magneto effect device for the strobe signal, is aligned with other said moving yokes so that at least a portion of said moving yoke is parallel with a portion of the other moving yokes, and changes the density of the magnetic flux to be applied to said galvano-magneto effect device for the strobe signal through parallel movement in a direction intersecting at a right angle to the direction of the magnetic flux between said moving yoke and fixed yoke, iii. a supporting means for normally holding said moving yoke for the strobe signal at the specified position and for providing a returning force against said moving yoke, iv. a delay actuating means provided at at least one side of said moving yoke and at the select bar side for actuating said moving yoke for the strobe signal by action of said select bars with a delay time even when other moving yokes are selected and actuated by action of any one of said select bars, and v. a strobe signal detecting circuit which detects the change of state of said galvano-magneto effect devices for the strobe signal and generates the strobe signal wherein said moving yoke for the strobe signal is moved in parallel by action of said select bars after the other moving yokes against the returning force of said supporting means.
Claim 18
Dependent Claim
44 words
A apparatus according to claim 16, wherein said delay actuating means comprises contact edges opposed to the moving yoke for the strobe signal and provided at all selected bars so as to have a specified distance from said moving yoke for the strobe signal.
Claim 19
Dependent Claim
51 words
An apparatus according to claim 16, wherein said delay actuating means comprises projecting parts provided on all select bars so that said projecting parts are opposed to said moving yoke for the strobe signal and a specified distance exists between the extreme ends of the projecting parts and said moving yoke.
Claim 20
Dependent Claim
13 words
An apparatus according to claim 18, wherein said projecting parts comprise a screw.
Claim 21
Dependent Claim
36 words
An apparatus according to claim 16, wherein said delay actuating means comprises at least one projection being provided on said moving yoke for the strobe signal so that said projecting is opposed to each select bar.
Claim 22
Dependent Claim
35 words
An apparatus according to claim 16, wherein said delay actuating means is formed by said moving yoke for the strobe signal being normally held a specified distance nearer said select Bars than other moving yokes.
Claim 23
Dependent Claim
37 words
An apparatus according to claim 1, wherein said plurality of select bars comprises at least two select bars which respectively select one moving yoke and one select bar which selects a plurality of moving yokes in combination.
Claim 24
Dependent Claim
37 words
An apparatus according to claim 1, wherein said plurality of select bars comprises one select bar which selects a predetermined moving yoke and at least three select bars which select a plurality of moving yokes in combinations.
Claim 25
Dependent Claim
40 words
An apparatus according to claim 1, wherein said plurality of select bars comprises at least two select bars which respectively select one moving yoke and at least two other select bars which select a plurality of moving yokes in combinations.
Claim 26
Dependent Claim
27 words
An apparatus according to claim 1, wherein said plurality of select bars comprises at least four select bars which select a plurality of moving yokes in combinations.
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) | 1976-11-19 | 1977-05-21 | 1977-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-19 | 1981-05-21 | 1981-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-19 | 1985-05-21 | 1985-11-20 | $7700.00 | Window Closed / Lapsed |