Magnetic bubble store
US4493054A · kind A · utility
2Cited by
6References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 1981 |
| Grant date | Jan 8, 1985 |
| Priority date | — |
| Expiry date | Apr 7, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/0883
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A magnetic bubble store including at least two series of longitudinally oriented major shift registers and a rotating magnetic field for producing a displacement of the bubbles in the minor registers. The series of minor registers are respectively arranged on either side of a transverse boundary. The minor registers of each of the series are constituted by motifs defined by ion implantation in a magnetic garnet layer. On either side of the boundary, these motifs define complementary distributions of implanted areas and non-implanted area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.