Magnetic bubble memory with expander-detector arrangement
US4181978A · kind A · utility
0Cited by
3References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1978 |
| Grant date | Jan 1, 1980 |
| Priority date | — |
| Expiry date | Apr 24, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C19/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An expander-detector arrangement for a conductor-access, magnetic bubble memory is realized by the inclusion in an electrically-conducting layer in which bubble propagation currents are impressed sets of apertures operative to enlarge a bubble laterally. For this purpose increasingly greater numbers of apertures are arranged laterally with respect to the axis of bubble movement through successive stages of the expander-detector arrangement. The actual detector is formed at the stage including the maximum number of apertures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.