Magnetic bubble memory device
US4470132A · kind A · utility
0Cited by
0References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 8, 1982 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Nov 8, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/0816
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a magnetic bubble memory device comprising a number of magnetic bubble propagation bit segments arrayed to form a magnetic bubble propagation path and having each a pattern of a length L in a direction of propagation of magnetic bubbles being less than 3.4 D where D is the average diameter of the magnetic bubbles and is not greater than 2.0.mu., the height H of the pattern of the magnetic bubble propagation bit segments in a direction perpendicular to the propagation direction of magnetic bubbles is set to be in a range of 0.75.times.L.ltorsim.H.ltorsim.1.1.times.L.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.