US3732550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bistable storage element with magnetic data storage
Assignee: Bayer AG
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Filing: 1970-12-23
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Granted: 1973-05-08
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Expires: 1990-12-23
Abstract
Abstract A bistable storage element with magnetic data storage contains in its magnetic circuit magnetized cores with different coercivities H1 and H2 so that only one core can be remagnetized by an external magnetic field H of the value H2<H<H1. An air gap is provided in the magnetic circuit within a magnetically controllable semiconductor component.
Inventors
- 👤 W Haupt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:33
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/007; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
83 words
A bistable storage element with magnetic data storage, without movable parts, characterized in that the magnetic circuit contains two magnetized cores of magnetic materials with different coercivities H1 and H2 (H1 > H2), one of which is permanently magnetized, and of which only one can be remagnetized by an external magnetic field H of the value H2 < H < H1, and that an air gap is provided in the magnetic circuit, a magnetically controllable semiconductor component being arranged in said air gap.
Claim 2
Dependent Claim
83 words
A bistable storage element with magnetic data storage, without movable parts, characterized in that the magnetic circuit contains two magnetized cores of magnetic materials with different coercivities H1 and H2 (H1 > H2), one of which is permanently magnetized, and of which only one can be remagnetized by an external magnetic field H of the value H2 < H < H1, and that an air gap is provided in the magnetic circuit, a magnetically controllable semiconductor component being arranged in said air gap.
Claim 3
Dependent Claim
26 words
A storage element according to claim 1, characterized in that the magnetic circuit contains in known manner a soft magnetic yoke for increasing the magnetic flux.
Claim 4
Dependent Claim
34 words
A storage element according to claim 2, one of the cores being permanently magnetized, set cores being disposed in coaxial abutting relation, there being a single field winding for the cores for the remagnetization.
Claim 5
Dependent Claim
17 words
A storage element according to claim 1, characterized in that said cores are disposed in axial alignment.
Claim 6
Dependent Claim
18 words
A storage element according to claim 4, comprising a single field winding for the cores for remagnetization thereof.
Claim 7
Dependent Claim
18 words
A storage element according to claim 1, characterized in that said cores are disposed coaxially in abutting relation.
Claim 8
Dependent Claim
18 words
A storage element according to claim 6, comprising a single field winding for the cores for remagnetization thereof.
Claim 9
Dependent Claim
18 words
A storage element according to claim 1, comprising a single field winding for the cores for remagnetization thereof.
Claim 10
Dependent Claim
62 words
A magnetic circuit comprising: a. a first core having a permanent and irreversible magnetization, b. a second core connected in series with the first core, the magnetization of the second core being reversible by an externally applied magnetic field, c. a gap in the circuit containing a magnetically controllable semiconductor component, d. means for applying an external magnetic field to the circuit.
Claim 11
Dependent Claim
62 words
A magnetic circuit comprising: a. a first core having a permanent and irreversible magnetization, b. a second core connected in series with the first core, the magnetization of the second core being reversible by an externally applied magnetic field, c. a gap in the circuit containing a magnetically controllable semiconductor component, d. means for applying an external magnetic field to the circuit.
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |